Raspberry pi general

[Anonymous No.1262741]

Post all your pi diy

[Anonymous No.1262793]

Question. What would you use to make a home-cloud, with id and password, access from outside?

[Anonymous No.1262818]

>>1262793
sftp

[Anonymous No.1262827]

>>1262818
rsync over ssh is probably better if you really want to avoid using software like owncloud and so.

[Anonymous No.1262848]

>>1262827
>rsync
>unironically routes his data through alphabet soup government agencies
i seriously hope you dont do this

[Anonymous No.1262941]

made this bot last year

[Anonymous No.1262945]

>>1262848
wth are you talking about?

[Anonymous No.1262948]

>>1262941
Sophisticay! I made this:
lan->pi->gpio->relay board->mains electricity->outlets
So now I have cron and a cgi turn outlets on and off. Lawn irrigation and christmas lights mostly.

[Anonymous No.1263074]

I once took a class where I had to compile all my programs with g++ on the school's linux servers using putty.

How could I set up something similar with the pi? I want to be able to connect to the PI wirelessly and be able to use the Pi's command line while on my laptop.

[Anonymous No.1263085]

i made a weather station with an anemometer, temperature, barometric pressure sensor; an arduino generates the sensor data and i save them on the pi in a mysql table; these data i can plot with a desktop program or view them on an android app i made

[Anonymous No.1263095]

>>1263074

- connect pi to your router either by ethernet or wifi
- install a telnet server on it (google how-to)
- determine the pi's local IP address by typing commands on it, or checking the DHCP section on your router's info page
- telnet into the pi using windows telnet, or putty
- use your pi as if you were sitting in front of it at a terminal window
- if you need a GUI/mouse thingy, then install a VNC program on the pi and on the laptop

[Anonymous No.1263125]

>>1262941
What's it do?

[Anonymous No.1263160]

>>1263125
>What's it do?

Cant tell you; just make sure your mom doesn't get too close to it.

[Anonymous No.1263230]

>>1263085
dude, you can have the arduino store the data into an SD card, you dont need the RPi

[Anonymous No.1263233]

>>1263125
Its a remote controlled cambot, the camera is mounted on a 2-axis turret. can be used to inspect pipes and other confined spaces

or it could if I hadn't made it with the cheapest parts available, but its just a prototype

good for taking upskirt pics too

[Anonymous No.1263236]

>>1262741
I made a GPS that says "Warmer" or "Colder" depending on whether or not you are closer or further from your target coordinates than you were 10 seconds ago. I added a thermometer to it that says "closer" or "farther" depending on whether or not you are warmer or colder that you were 10 seconds ago.

[Anonymous No.1263238]

https://pi-hole.net/

[Anonymous No.1263388]

>>1262741
Is there any real practical use for this?

It's a low spec single board computer. Overkill for arduino type applications. Not good enough for things that need a real computer.

It's neither here nor there.

[Anonymous No.1263389]

>>1262741
around 150-200ms latency...

[Anonymous No.1263392]

>>1263388
There is a long standing industry demand for single boards computers (or better, "embedded computers" https://en.wikipedia.org/wiki/Embedded_system)), and some of them will include a CPU/GPU/SoC/ASICofsomekind.
But, yeah, the raspberry and similar are generally intended for educational use and low cost ARM development platform, actually the raspberry was initially intended as solution for developing countries.

Dave did a video about this few days ago: https://www.youtube.com/watch?v=6ad0KP5EvpU

[Anonymous No.1263496]

>>1263388
you can run PS1 games on it

[Anonymous No.1263498]

>>1263389
I love how jihad-rigged that thing looks like

[Anonymous No.1263511]

>>1263496
> you can run PS1 games on it

well, with retropie, for example, you can play games from some 52 different systems, including these...
Amiga (UAE4All)
Apple II (Basilisk II)
Arcade (PiFBA)
Atari 800
Atari 2600 (RetroArch)
Atari ST/STE/TT/Falcon
C64 (VICE)
CaveStory (NXEngine)
Doom (RetroArch)
Duke Nukem 3D
Final Burn Alpha (RetroArch)
Game Boy Advance (gpSP)
Game Boy Color (RetroArch)
Game Gear (Osmose)
Intellivision (RetroArch)
MAME (RetroArch)
MAME (AdvMAME)
NeoGeo (GnGeo)
NeoGeo (Genesis-GX, RetroArch)
Sega Master System (Osmose)
Sega Megadrive (DGEN, Picodrive)
Nintendo Entertainment System (RetroArch)
N64 (Mupen64Plus-RPi)
PC Engine / Turbo Grafx 16 (RetroArch)
Playstation 1 (RetroArch)
ScummVM
Super Nintendo Entertainment System (RetroArch, PiSNES, SNES-Rpi)
Sinclair ZX Spectrum (Fuse)
PC / x86 (rpix86)
Z Machine emulator (Frotz)

there's also a bunch of media player OSes based on Kodi, which make this a perfect game/media system to have next to your TV.

you can also multiboot, and use a real linux OS for browsing, running an office suite, downloading torrents 24/7, file sharing inside your network, etc, etc

[Anonymous No.1263512]

>>1263236
I think you got that backwards m8.

[Anonymous No.1263517]

I posted this in /g/ but they send me here:

What's Odroid should I get for a small home server for file-serving, VPN, Torrents, mail, etc?
XU4 or C2? What are the main differences?


Are there any other alternatives /g/ would recommend me?

[Anonymous No.1263526]

Whats the best way to learn how to program games for Pi3 that will also allow me to port to Windows / Android without having to start from scratch?

[Anonymous No.1263531]

>>1263526
>learn to make games for windows
>install windows on RPi

[Anonymous No.1263532]

>>1263531
Fair enough, but I was hoping theres a way to make games for the offical OS Raspbian. I heard PyGame is good but I didnt know about portability for that.

[Anonymous No.1263547]

>>1263532

python games, being interpreted, tend to be super awful. it's like being back in the Pentium 1 era. java is now available on the Pi, but i dunno how well it performs. you can definitely port Java between a PC and android.

[Anonymous No.1263550]

>>1263547
Ill look into Java games for Pi, I already have basic experience with that.

Thanks

[Anonymous No.1263558]

>>1262741

guys, i want to use qwerty keyboard keyswitches (cherry mx brown) to make a MIDI keyboard for playing music on.

i've learned that what i need is likely an 'input matrix'. there are 91 keys (as it stands), but 8 of them are duplicates since the second row of keys start at the first F of the first row of keys (so you can play chords and inversions in multiple octaves with one hand).

so my question is, how many analog inputs will i need to make a full polyphony capable midi keyboard with an arduino? will i need 'multiplexers'?

help me

[Anonymous No.1263613]

>>1263095
Gonna want to give your pi a static IP on the network as well

[Anonymous No.1263627]

>>1263558
Considering that the arduino only has 16 or 18 inputs, or whatever, I'm going to go with, yah, you will need to multiplex if you want 91 input keys.

[Anonymous No.1263629]

>>1263512
Nah that's how it works.

[Anonymous No.1263640]

>>1263627

i'm not exactly sure how multiplexing works, but let me take a crack at it:

is a multiplexer going to take the 91 keys, and interpret each one to a different 16 element code (take the 16 analog inputs and use them as binary, like 1010000011001100 is key 51 and 1010000011001110 is key 52) and then in the software that i put onto the microchip, it interprets those inputs into the correct midi on/off messages?

does the multiplexer have 91 inputs then?

[Anonymous No.1263644]

>>1263640

and how would polyphony work in that case????

this is crazy.

[Anonymous No.1263663]

>>1263640
>i'm not exactly sure how multiplexing works

you're right about that. first thing is you need to determine whether it's necessary. keyboards are always wired in a matrix. so, for 91 keys with 8 duplicates, you'd need a 9x10 matrix which requires 19 I/O pins on the thing that's reading the keyboard.

if you've got 19 pins free, then no multiplexor is needed. otherwise, things jump up one level of complication.

[Anonymous No.1263667]

>>1263663

thanks. know of anything like an arduino (which, if i'm not mistaken, is an atmega chip on a board?) that would have upwards of 24 analog i/o?

i was really surprised when i first started researching for this project, and didn't find anything that had like, 320 analog i/o pins. i thought there'd surely be something like that.

[Anonymous No.1263671]

>>1263640
let me see, you can use a 12 x 8 matrix

on the 8 side of the matrix you connect an 8 bit shift register so it outputs into the matrix, shift registers need 3 pins to control

then connect the 12 outputs of the other side of the matrix to the arduino as inputs

if you dont mind using the analog pins as digital I/O, you have enough pins, and you can check if multiple keys are pressed at the same time

by the way, if you want too make a keyboard, you should use the arduino Leonardo, which is pretty much made for keyboards and peripherals, it has USB support on the microcontroller (the UNO uses another chip on the board for USB)

[Anonymous No.1263675]

>>1263671

sweet, thanks. do you think i'll run into any problems with sending multiple keys at the same time? i might be playing up to 8 notes at a time for big chords...

worst case scenario, i suppose, i could just use one leonardo chip for every octave, and send them digitally to another leonardo that goes to the midi/usb out

[Anonymous No.1263677]

>>1263667

the ''standard'' arduino pinout has 14 digital I/O pins and 6 pins that can be either analog inputs, or digital outputs. so, you have 20 total, and you only need 19, so you're fine. presumably, someone has written a library for keyboards so you dont have to.

[Anonymous No.1263680]

> i might be playing up to 8 notes at a time

that might be a problem. you can have multiple keypresses if you use some clever ''roll-over tables'' programming, but it probably cant handle any 8 keys.

[Anonymous No.1263690]

https://headfuzz.co.uk/?q=midihack

i think maybe arduino or raspberry is wrong approach.

[Anonymous No.1263697]

>>1263675
>do you think i'll run into any problems with sending multiple keys at the same time?
there shouldn't be any problem

[Anonymous No.1263716]

>>1263697
>there shouldn't be any problem

of course there can be a problem. you've probably got a modern computer keyboard in front of you. try pushing QWA at the same time, do all three keys appear in notepad? how about ASX? WDE, WAQ, WASD, QAS, WRV? and that's just 3 keys, on a modern machine. specially-designed gaming keyboards will typically only handle 6 keys.

[Anonymous No.1263721]

>>1263716
why is that? i dont really see any reason for that in the hardware, you sure it's not a software/system related issue?

[Anonymous No.1263722]

>>1263721

there are only 16 analog inputs.

unless i make a software library using 16 bit binary words containing every possible combination of 91 keys, then even using a matrix, those 16 inputs can only be told one key at a time.

maybe it could check the inputs three thousand times a second and just add new keys to the polyphony as they arrive with basically zero noticeable input latency. i don't know.

but please explain how 16 inputs can determine when and which 5 different notes on a key-piano are being pressed.

[Anonymous No.1263724]

>>1263721

it's because of the way the matrix works. look at the pic in >>1263663 -- if you have the R key pressed, then you have a connection from pins 11 to 14. if you now also press W that connects 7 and 14, but 14 already has a signal from 11, so it doesnt detect the signal from 7.

[Anonymous No.1263742]

>>1262793
>Question. What would you use to make a home-cloud, with id and password, access from outside?
Nextcloud

[Anonymous No.1263749]

>>1263724
Maybe Im thinking of a non-standard way of reading the keyboard, the way I have done it would be having 5, 7, 11, 10, 12, 1, 15 and 18 (outputs) to GND
then connect 5 to VCC and check the states of 17, 14, 13, 2, 6, 8, 9 and 16 (inputs) to see which keys are pressed from that row, then connect 5 to GDN and connect 7 to VCC and check that row, and so on with each row
microcontrollers can do this way faster than you can move your fingers

[Anonymous No.1263751]

>>1263742
>Nextcloud

if someone doesnt wanna run a computer 24/7, a better solution is a lil gadget like the Pogoplug which is silent and only uses about 8W. i got a used one for $4. didnt even know what it was, it just looked so cute, i had to have it.

[Anonymous No.1263753]

>>1263749

so basically it scans every row and column, and adds the active keys to a list of active keys, and inactive keys to a list of inactive keys. it's not simultanious, but it happens fast enough that it doesn't create noticeable latency.

am i understanding this correctly?

[Anonymous No.1263755]

>>1263749

the scan method you've described is very common, but it doesnt solve many multi-key combinations. if it solved the problem, then your current keyboard wouldnt have the limitations it does.

[Anonymous No.1263756]

>>1263755
>it doesnt solve many multi-key combinations
maybe you're right, I just don't see in which cases key combinations are a problem

[Anonymous No.1263760]

>>1263755
>>1263756
OK, I found it
>The second [limitation] is that instruments with a matrix circuit can only play in a monophonic fashion without the addition of a diode for each key crossing.[2] The diode prevents unwanted notes ("phantom keys") from being triggered, or intended notes from being masked ("phantom key blocking").[1]
so, you would need a diode at each key

[Anonymous No.1263761]

>>1263749
wait, I got it wrong, you connect the output pins to high impedance when not reading that row, otherwise you get a short

[Anonymous No.1263764]

>>1263760

how exactly does the diode accomplish this?

[Anonymous No.1263772]

>>1263756

microsoft has a write-up on this topic at:
https://www.microsoft.com/appliedsciences/content/projects/AntiGhostingExplained.aspx

there's also a little app there that tests how well your keyboard does.

[Anonymous No.1263777]

>>1263388
>Is there any real practical use for this?

Yes there's tons. It's multiplied by the strong community and vendor support for the Pi as well, so while you could buy a single-purpose chinkshot SoC for some point use, that's all it's ever going to be.

Pi on the other hand can run a variety of operating systems and there's a ton of header boards etc that can be used to enhance it.

As for what kind of uses - Robotics controllers, automation (garage door opener, HVAC/light control etc), inline network firewall/filter (Pi-Hole is a good example).

In short, yeah there are practical uses. In addition to the less practical playing around uses which it also has..

[Anonymous No.1263938]

>>1263764
The same algorithm that scans the matrix, instead, scans each individual key.

The 12 x 8 matrix turns in to a 91 element vector. A diode allows a signal voltage to pass through if the key is actually pressed. The software scans each diode to see if a signal is coming from it.

Interestingly, the speed that you have to scan the individual diodes is the worst case scenario for every key (or at least one key from every row and column) being depressed on a regular keyboard. In other words, it takes the same amount of time for the regular keyboard algorithm to scan a worst case scenario as it does for a 91 independent key keyboard to scan any individual case.

[Anonymous No.1264128]

>>1263511
This is what mine is doing, 2 years under the tv and still going strong. I should really get fan and put it on there, the N64 games just rape the poor thing and it constantly shuts down from overheating.

[Anonymous No.1264508]

>>1263751
I've already built the server. It's too late for me. Now I must squeeze every cycle out of this machine to compensate for it's thirst.

[Anonymous No.1264680]

>>1262793
Turn it into a OpenVPN server and then install whatever functionality you want on it.

[Anonymous No.1264684]

>>1263532
Just pick one of the bajillion multiplatform game engines and make your game on whatever platform you want. The thing is, you will always have to do some work to make it work flawlessly into different operating systems, no matter how portable your engine is.

[Anonymous No.1264711]

>>1262793
How real-time would you want it? Setting up a dynamic DNS service for SSH/SFTP is pretty easy. The next step would be a simple cron job to push/pull the newest version of any file. This gets into rysnc territory though.

I had one running for a while (with VNC on it as well) but residential internet has inexplicable downtime and low upload speeds. It wasn't reliable and wasn't practical for music/video.

[Anonymous No.1264730]

>>1262948
>Not just buying some $6 ESP8266 sonoff switches
Cmon man

[Anonymous No.1264784]

>>1262941
Any tips? Just got parts arrived in yesterday (I forgot to get the shield, will pick one up tomorrow), pic related. Looking to create a robot that will map the house out and then navigate around it autonomously. My idea is to connect pi to Arduino and write the code with python.

[Anonymous No.1264794]

>>1264784
>get a better battery
>get a step-down to feed the RPi
>get a better ultrasonic sensor, that isnt very accurate, pic related is a sweep sonar I made
>get some encoders (optic would be best) so the bot knows how much it is moving
I hope the shield you said is the l298

Is the bot meant to just roam around?
or to go from one place to another avoiding obstacles? you might want to add a compass

[Anonymous No.1264796]

>>1264794
oh, yeah, my phone is like really old and take potato pics, but you can see that discontinuity? the line at the left is the wave echoing through a corner and "seeing" the reflection of the other wall

[Anonymous No.1264798]

>>1264794
>I hope the shield you said is the l298
L293D was what I was thinking of. Difference?

What ultrasonic to you recommend?

Will I have to calculate for wheel slip or surface (carpet vs wood)?

[Anonymous No.1264801]

>>1264794
>Is the bot meant to just roam around?
>or to go from one place to another avoiding obstacles? you might want to add a compass
both really. I want to be able to map the house out and then return to a set position in the house. I can then write algorithms to tell it to traverse through the house in a certain manner.

[Anonymous No.1264802]

>>1264798
>L293D was what I was thinking of. Difference?
I think L293D is for steppers, not sure, but I can tell you that the L298 comes in a smaller board and can take more power, also, you should keep power circuits away from control, also, I find the L298 easier to understand

>What ultrasonic to you recommend?
i dont really know much about them, I only used the cheap one you have and found its limitations, a laser telemeter (LADAR) would be so much more precise, its what the boston dynamics robots and google cars use AFAIK, but its not exactly cheap, maybe a better US sensor can map walls correctly

>Will I have to calculate for wheel slip or surface (carpet vs wood)?
hard to estimate as it depends on a lot of stuff, maybe use a (or two) modified mouse sensor to know how youre moving, but that would suck on a carpet
perhaps some beacons like a home GPS system? I heard that exists, but Ive never tried building one

[Anonymous No.1264811]

>>1264802
Another way of doing it, that is not as pretty, is to have it follow lines in the ground.

I once made a robot that would roll towards a stop marked in the floor and wait there to receive a package, then follow the line to the next stop and deliver the package there

[Anonymous No.1264813]

>>1264802
>>1264811
I was trying to stay clear of GPS/home wifi positioning and leave it all to the robot desu. How do devices like roomba accompish it?

[Anonymous No.1264820]

>>1264813
>roomba
looks like it just follows random directions or spirals, avoiding the walls
some models can find their charging station, but not guaranteed to reach it if there are obstacles

[Anonymous No.1264839]

Are raspberry pi 2 software compatible with Pi 3?

[Anonymous No.1265026]

>>1264820

more expensive roombas use Vision Simultaneous Localization and Mapping to map out spaces, and not vacuum the same spot twice. cheaper models essentially go around bumping into things, and changing direction at random when they do. so, they have to run a lot longer to ensure they dont miss too much.

>>1264839
>Are raspberry pi 2 software compatible with Pi 3?

close to 100% of software and hardware is compatible.

[Anonymous No.1265050]

>>1262793
sftp and rsync ofc

[Anonymous No.1266629]

>>1263526
Depends on what you're making. If its something simple, pygame or java are well suited

[Anonymous No.1266753]

>>1264813
>How do devices like roomba accompish it?
idk what roombas specifically do but Babby's First Robot kits generally use whiskers, bumpers, light sensors, or sonar rangers to detect walls and just do a U-turn so they go back and forth in a zig zag pattern.

it's not a bad system considering mowing big lawns is usually done in the same way by humans.

this tends to fail on obstacles it can't easily detect, you need some redundant sensors so it won't, say, miss a table leg with its ranger, crash into it, and just keep trying to spin its wheels because it doesn't see the table leg. bumpers will just bump the robot off rather than actuate on shallow angles. whiskers give a lot of false positives. etc etc

[Anonymous No.1266799]

>>1262741
Is the Pi fast enough for a single disk NAS? I have a harddrive with videos and music and would like to share them over my network.

[Anonymous No.1266849]

>>1266799
no native sata, it would be slow

[Anonymous No.1266859]

>>1263511
My Pi2 has been solid for RetroPie duties for about 2 years now. NES, SNES and MAME. Bought a $15 wireless microsoft receiver, using 360 controllers.

[Anonymous No.1266866]

>>1264680
This.

The best and safe way. I have a openvpn server and I use samba.

[Anonymous No.1267052]

>>1263095
Ssh may be a better choice than telnet

[Anonymous No.1267502]

So I'm planning on getting the ASUS tinker board instead of the Pi. There's not a whole lot of info out there on them right now. I have two questions.

>What input voltage range can the tinker board handle?
I know the pi can handle up to like 24 volts input or something along those lines. If possible, I plan on using an 11.1v LiPo battery to power it when I'm not near power. I'm just not sure how it's input power is regulated


>Should I get a pi instead/am I making a mistake?
Im only going to have two purposes for buying it. One being using it to set up Cisco equipment without having to haul my laptop around. Second being previewing video recorded from a quadcopter while in field. The tinker board is supposed to be able to handle 4k video.

[Anonymous No.1267535]

case for retropie

[Anonymous No.1267536]

[Anonymous No.1267537]

[Anonymous No.1267540]

>>1267537

you case highlights a fundamental design flaw in the Raspi: you have cables coming out on 2 sides and the SD card on a third side. so it's an octopus, you have to have access on 3 sides. so it cant sit besides other equipment, unless you do what you did, use an over-sized case and bend all the cables toward the back.

[Anonymous No.1267675]

>>1267540
yeah, it's very stupid so it belongs to a stupid case of an old stupid product. the aluminum case in contact with the cheap steel grills they used for grounding made it rust like a bitch, had to pull it off entirely.

[Anonymous No.1269444]

>>1267537
Nice

[Anonymous No.1269464]

>>1262741
I'm going to buy the Chinese version from GearBest. The idea is to host my Telegram bot and to be notified if my kids open a certain drawer/door/anything (with the distance sensor). I'll also use it as a media center. I hope it will be great. At the time I'm studying Python, so I'll wait another month to buy it.

[Anonymous No.1269554]

>>1267540
it is not a design flow it is a form factor limitation
it could have been thicker on ports side or stick like with all ports next to each other

or it could use a custom port and a cable

[Anonymous No.1270293]

>>1263667
You'd want to get something like an arduino leonardo or Teensy++ that has native USB support otherwise you'd only be able to do UART over USB and would need software on your computer to convert it to keystrokes.
with the above uC, you can make it appear as usb keyboard which would be ezpz to configure with your music software

[Anonymous No.1270383]

Hi /diy/.
Anyone in here tried the sel4/genode framework kernel for pi? I'm wondering if it's usable yet.

[Anonymous No.1270398]

>>1270293
>You'd want to get something like an arduino leonardo or Teensy++ that has native USB support

nah, dude, the best reason to use a raspi is you dont need a 300W $1200 computer running all the time to make this work.

[Anonymous No.1270603]

>>1262793
I have been installing owncloud on pi3. What do you guys think of it?

[Anonymous No.1270744]

>>1262741
> try to make a speaker that does dlna and hands free for mobile phone.
> can't pick up WiFi, needs usb because signal shite
> Bluetooth can't do hands free, need usb Bluetooth module
> no microphone connection, needs usb soundcard
Fuck sake!!!!

[Anonymous No.1270746]

>>1263558
Rather than a matrix for a musical instrument where you are pressing multiple buttons you might be better off with a bunch of parallel in serial out shift registers. Many more components, more expensive a little but no problem for multiple presses.

[Anonymous No.1270907]

Self driving car using a neural network

[Anonymous No.1270914]

>>1263517
HC1, it's a XU4 with USB3 to SATA port and a badass radiator, so it doesn't need a fan, and the radiator acts as a housing for a 2.5 HDD as well.

C2 has significantly better CPU (architecture ARMv8 – it's a complete redesign for 64bits), but there is no reasonable way to attach any mass storage (it has only a slooow USB2.0).

[Anonymous No.1270917]

>>1264839
>>1265026
>hardware is compatible
It's not 'compatible', but RPi3 can run all that RPi2 does.
Does not work the other way, unless you're using the shitty raspbian as your base OS.
Raspbian does not take advantages of the new CPU in RPi3 at all, so you're basically running legacy OS for that hardware.

And you know what's funny? RPi3 is advertised as 64-bit, but the software provided by the advertiser does not run in 64bit mode – it's all 32 bit. What a fail.

[Anonymous No.1270919]

>>1266799
> RPi fast enough for NAS
> videos
> USB2.0 for storage
> 100Mbps LAN
How about just no.

Old Allwinner A20 boards (true sata onboard) OR a board with USB3.0 (e.g., Odroids) are fine.
Obviously 1Gbps Ethernet is a must.

[Anonymous No.1270923]

>>1270919
RPi does not even have 100 mbps Ethernet, its running through the USB and uses a shitty usb to Ethernet adapter. I think it benchmarks around 40 mbps, and it eats into CPU resources to do that. Oh and its the same USB root hub as the ones exposed for use, so you if you are trying to stream over the network shit from your USB drive the USB bandwidth will thrash about like mad killing preformance.

RPi is shit, there are plenty of other boards that out preform it and cost less, but none of them have nearly as large of a community so support sucks.

[Anonymous No.1270930]

>>1270907
Feel like explaining how you did that?

[Anonymous No.1271113]

>>1270930
Basically I've put this on the Pi:
https://github.com/llSourcell/How_to_simulate_a_self_driving_car
like so:
https://github.com/thomashiemstra/Raspy_NN_car

[Anonymous No.1271135]

>>1263095
SSH works like a charm (not shure about ssh -x. I think i tried it and failed but dunno which distro i used)

[Anonymous No.1271138]

>>1263388
>a low spec single board computer. Overkill for arduino type applications. Not good enough for things that need a real computer.

Generally true. Some things you could do with µC and a lot of hardware are way easier with the pi. Like displaying weatherforecasts/emails/dates in a Mirrordisplay or stock charts on Eink at your desk, Arcadegames, stream shit like surveillance cameras, connecting your shit to a server/home automation (in some places you'll pay 30ct/kWh). On some similar (not really the pi) you can run linuxcnc and use it for robot or machine applications, also machine visions for that robot (don't use a bigger machine -> just use more pi's so you won't loose pseudo realtime). So there's a lot of applications. You'll probably will never need any of them but 1. this is /diy/ after all and 2. most ppl won't even need a "real" PC or a powerful smartphone because all they do is surf and chat.

tl;dr: For cool projects that nobody really needs but are nice to have in the end.

[Anonymous No.1271164]

For my electrical engineering class I need to make a project. I chose the topic of reducing carbon footprints. We have to come up with one specific problem then find 3 solutions, then choose the best solution, or merge 2 or 3 solutions to get the best one.
I knew from the start I wanted to make a raspberry pi cloud storage server that has a battery that is charged either by charger modules, or by micro usb. An example of a module would be an attachable solar module, or a hand crank module. All this had to be under the guise of ‘reducing carbon footprints’ and had to be split into 3 separate solutions that would eventually be filtered to one.
So reverse engineering it, I separated it out into solution 1 being a RPi server which reduces carbon footprints because data centres eat huge amounts of energy, so taking demand away from them saves emissions. This is bullshit I know but its enough to fly in the project criteria.
Solution 2 being a battery bank that has charger modules that are attached, those solar and hand crank stuff I mentioned earlier. Again, I know the power I’d get from these modules would barely scratch the surface of the required power of the board to work, but the project criteria doesn’t say the thing has to work – we just have to prove we designed a project and show every step.

My problem is, what can I say for solution 3? Im kinda stuck here. Any problems?
For my final solution I’ll obviously be merging those first two solutions, so what fluff piece can I chuck in so I meet my course criteria?
Thanks anons

[Anonymous No.1271169]

>>1271164
>every person in office has to ride generator bike otherwise the company will loose all the data in cloud (distributed over pi's at every desk) theyre working on. That's also a health benefit from your employer. No fatties guaranteed. kek

[Anonymous No.1271593]

>>1270914
>HC1
I've looked into it, but it's not what I'm looking for. I plan on attaching multiple disks.

[Anonymous No.1271756]

So I have a Rpi 1 in my drawer and haven't looked at it for a good while. Anything cool I can do with it? (it worked as an media center a loooooong while back, but I don't have a tv anymore :))

[Anonymous No.1271931]

anyone have a guide for a raspberry pi driving stepper or servo motors? or a torch height controller for a diy cnc plasma

[Anonymous No.1271938]

>>1271164
If you want to reduce carbon footprints put the raspi in a trash can then submit that.
Any renewable power fed to your anime and gay porn repository could have been thing something useful and is therefore wasted.

[Anonymous No.1271945]

>>1271135
the x-windows options (-X, -Y) won't work from windows unless you're running an x-windows server, .e.g xming.

[Anonymous No.1271950]

>>1271756
i have several rpis -- one is htpc, one is toy room monitor, one is a jumpbox, and one i use as a sandbox for playing with various programming projects.

[Anonymous No.1271973]

I want to use the 10" Pi touchscreens for my PC - assume the HDMI only displays the PC screen, how do I use the touch screen functionality with a PC?

[Anonymous No.1271980]

Librebot flashing with a Raspberry Pi 3 ver. B.
Can any anon mark the proper pins on the image? It's my first time with a pi, and I want to make sure that my boards is set up properly.
Connecting to a Pomona 5252 SOIC 16 pin clip.
3.3V == Pin 1
MOSI == Pin 19
MISO == Pin 21
CLK == Pin 23
CS == Pin 24
GND == Pin 25
Thanks whoever helps.

[Anonymous No.1271995]

>>1271980
pi3 has same GPIO pinout as pi2

[Anonymous No.1272077]

>>1264794
About 5 years ago with the very first raspberry pi I had a project where i was trying to make the local mapping function of a pip boy using a ping ultrasound sensor. After much frustration I found that the pi was incapable of exact timing. So every measurement changed drastically even with say a static object like a wall.

How did you solve this problem? Did the later pi's get a more accurate timer or did you use an arduino in between which is what I was going to do before I gave up.

[Anonymous No.1272090]

>>1272077
>After much frustration I found that the pi was incapable of exact timing.

I would expect someone to program the ARM directly in assembly language and not use a full OS. You'd lose lots of the features but you'd have a gigahertz speed microcontroller.

If nobody has done this then there must be a reason, but would it be possible? I program AVRs regularly in assembly language and it's fun for the most part. Is there something about the ARM RISC instruction set that makes this mostly impossible?

[Anonymous No.1272100]

>>1272090
Of course it is possible to program ARM in assembly. That's actually fully possible with RPi as well.
The problem here are the peripherals and the OS required to give you access to them. I don't know if it's still the case, but there was a time when the full datasheet of RPi's SOC was secret, preventing you from writing everything from scratch.

[Anonymous No.1272101]

>>1272100
>but there was a time when the full datasheet of RPi's SOC was secret,

The linux distros that work on RPi are open source, so I'd think that access to the hardware would be easily gleaned from that code.

People do such crazy things, like building a 6502 from TTL chips so I'd think that someone would have tried to use a RPi in bare bones direct to the hardware mode to get a super high performance microcontroller for a few bucks and a lot of work. If that were doable and they released the code I'd sure buy one and see what it could do. At the present, having a weak linux computer does not appeal to me, but this could be fun.

[Anonymous No.1272178]

>>1262741
Tfw when I made this thread 2 weeks ago and it's STILL here, good lord this board is D E A D

[Anonymous No.1272182]

>>1272090
You could use a better suited OS like linuxcnc.

[Anonymous No.1272323]

>>1272090
> Is there something about the ARM RISC instruction set that makes this mostly impossible?
No.
It's just the volume of documentation you need to parse in order to get all peripherals working. Often the documentation is either vague or a mess.

[Anonymous No.1272448]

>>1272101
Pretty sure some of the pi drivers are or were binary blobs with no documentation outside NDA probably.

[Anonymous No.1272471]

>>1272090
No the circuit (at least on 1st gen Pi) was not capable of exact timing. You can install gentoo, program in assembly, or whatever meme you want and every time you measure with an ultrasonic sensor the reading will change because it can't time the pings correctly.

[Anonymous No.1272521]

>>1271973
Shameless bump

[Anonymous No.1272643]

>>1271995
Like this then?
>3.3V = Pin 1
>MOSI = Pin 19
>MISO = Pin 21
>CLK = Pin 23
>CS = Pin 24
>GND = Pin 25

[Anonymous No.1272644]

>>1272643
*"CLOCK/Pin 23" is mean to be "CS/Pin 23"

[Anonymous No.1272897]

The machine on the right has a RPi3 running Retropie in it.

[Anonymous No.1273722]

>using pozzed hardware

Shiggy diggy doo

[Anonymous No.1273726]

>>1263074
comes with ssh

[Anonymous No.1273836]

>>1262741

Which type of sensors should I use to make an Punch machine with my arduino. Found these "Gikfun 50kg 110lb Half-bridge Weight Sensors" on Amazon but I don't think they can take the impact of an average punch.

Already have some accelerometer so I should be able to mesure the speed but Ì'd also like to measure the force of the impact.

[Anonymous No.1273850]

>>1273836
>measure the force
if whatever you are punching has a mass you don't need to measure it, you can calculate it from the acceleration.

[Anonymous No.1274013]

>>1263667
why do you need analog I/O with digital switches?

>>1263777
>run a variety of operating systems
y tho, when all you really need is *a* Linux distro that works?

>>1270919
On the older native-SATA chips, depending on which direction you're transferring, either the Ethernet core or the SATA core becomes a bottleneck to NAS service. New Allwinner boards with UASP over USB 2.0 should be faster for NAS.

>>1271973
Probably by building an I2C interface then writing/configuring the appropriate drivers. Kind of an advanced project.

>>1272090
>>1272101
Complex machines with all those caches, multiple bus masters etc. are non-deterministic. Later Broadcom rPi chips do have a GPIO library and hardware that allow you to read or write precisely timed digital samples from the GPIO ports. This is a bit of a rare feature on Android-oriented SoCs, with the expectation being that you'd include an offboard AVR or something doing the strictly timed I/O and talking to the application processor via serial bus.

[Anonymous No.1275375]

Can't take full credit for this since I didn't write almost any of the code myself (thanks, github) but still a neat and useful project. I drilled a small hole into my humidor and put in a DHT22 temperature/humidity sensor connected to a pi zero w (sitting on the back of the humidor). It logs the humidity as well as hosts a basic website I can access to see the data, and sends me email alerts if the humidity gets too low so I can refill the humidifier. Now I don't have to worry about forgetting to check on them and have them drying on me or grow mold due to high humidity.

[Anonymous No.1275382]

>>1275375

That is pretty cool. And holy shit if this didn't remind me to check my humidors (totally forgot for the last two weeks).

[Anonymous No.1275387]

>>1275382
Thanks anon. It sounds like you need one of these too!
The entire project costs less than 75$, humidor included. If you already have a humidor you're willing to sacrifice and some jumpers lying around, then all you need is a basic pi zero kit which is like 35$. If you have any expensive cigars and you're prone to forgetting about them, it might be well worth the money.

[Anonymous No.1275485]

>>1275382
>remind me to check my humidors (totally forgot for the last two weeks).

That's absolutely me.

>>1275387
Very nice project with a realworld use not just playing around. I think about making one too.

[Anonymous No.1275606]

Is there any wired alternatives to ESP8266 with something similar to Tasmota, Espurino, EspEasy firmware? It's a web gui to configure mqtt server, digital IO and basic sensors.

[Anonymous No.1275677]

>>1262741
Beloved cluster

[Anonymous No.1275775]

>>1275677
What kinda work do you do on it?

I had a robot that used Connectome based ai to dodge obsticals and drive itself around. If anyone is interested I can host about it.

[Anonymous No.1275812]

>>1275775
Sounds interesting.

Quite a high-tech collision detection system you have there :^)

[Anonymous No.1275817]

>>1275677
why wood? so the house fire starts bigger?

[Anonymous No.1275828]

>>1275387
neat idea, horrible wiring.

make a proper wire and but the pi itself more far away.

[Anonymous No.1275834]

>>1271980

Is your reference BCM?

>>1271995
>>1272643
>>1272644

Best reverence: https://pinout.xyz/
Click on the IO pins.

[Anonymous No.1275858]

>>1275775
is that a battery from an electric fly swatter?

[Anonymous No.1275903]

>>1263125
IT GO

[Gatebox No.1276170]

https://www.youtube.com/watch?v=nkcKaNqfykg

how do I make this with a PI?
I assume it's using peppers ghost illusion to create the hologram effect but I couldn't find any info about it. Along with some voice recognition and home automation stuff. The Pi already has APIs for Amazon's Alexa so the real barrier challenges come down to getting the hologram looking right and having the art skills to model and rig a waifu/character.

[Anonymous No.1276182]

>>1263550
LibGDX is a great framework for Java, but I'm not certain at all if the libraries would work well on Pi. I do recommend that system 10/10 if you decide to go down that route, just skip the box2d and maybe the built in ui node manager.

[Anonymous No.1276189]

>>1275812
Hah, it worked surprisingly well I have to say.

>>1275858
https://www.amazon.com/gp/aw/d/B01CU1EC6Y/ref=pd_aw_lpo_107_lp_img_3?ie=UTF8&psc=1&refRID=JYWN4AMRGJAXTJVG9X6Z

Basically I took the connection network from the Openworm robot github project and mapped the button to the noise nerves of the worm and then the side muscles to the wheel servos. To make it move I basically fed it when it was moving straight. The stimulation of the nerves in the nose would trigger it's muscle nerves to back it up.

[Anonymous No.1276196]

>>1262741
Does anyone know any good headset displays(like the movie viewer kind) that would be useful to hook up to my rpi's hdmi so I can program while I go places? If I'm on a train for an hour at a time I could really make good use of that time, but I have no experience with headset displays.
The biggest problem I've heard so far is the displays are meant for video, not text so it might look wonky.

[Anonymous No.1276907]

>>1276170
I actually was working out something like this. Was a webserver that you could stream audio to a raspberry pi which would transcribe it and then follow commands. But gave up because doing speech to text with pocketsphinx on pi was a headache. Often think about going back to it.

[Anonymous No.1276955]

>>1269464
Yeah, Orwell the shit out of your children.

Oh boy, he must be a Burger.

[Anonymous No.1277008]

>>1262741
Is it possible to have multiple mini touch screens hooked up to a Pi?

[Anonymous No.1277010]

>>1277008

No

[Anonymous No.1277018]

>>1277010
Oh really? Is that because the Pi doesn't support multiple screens or just because they're touch screens?

[Anonymous No.1277020]

>>1277018
Maybe you should google what a digitizer is.

[Anonymous No.1277028]

>>1277020
Why would I want that and not just 3 USB touch screens ready to go?

[Anonymous No.1277044]

If you can afford the throughput.

[Anonymous No.1277158]

>>1275387
Honestly an ESP-8266 would have been a better fit for this.

>>1276955
It seems pretty reasonable to not want the kids in one's personal hentai collection.

[Anonymous No.1278055]

Is there any way I can use the Google home projects to run a python script? I have it so I use an old tablet to run a python script over SSH which turns a servo to turn my lights on and off, I want to be able to say ok Google turn of my lights but I'm not sure if it's limited to just the Google supported light switches

Also are there any other voice controls for running python scripts?

[Anonymous No.1278173]

I'm building an autonomous rover that needs to drive around and spot any cats in its surroundings. Its natural habitat will be a house garden with grass and some bushes/trees.
To detect the cats, I was thinking about using thermal imaging camera connected to a raspberry pi. This is because I thought that maybe some smaller animals might be behind branches or something and a thermal camera might have an easier time spotting them than a normal camera.
Is this a good idea? How high of a resolution do you guys think i'd need? I'd like to spot any cats at least 5 meters away or more.
Lastly, the idea was to rotate the camera, take a photo and feed it to a neural network running on the pi to see if it contains any cats. Would using infrared defeat the purpose, or would it just mean that I'd need different training data for the net?

[Anonymous No.1278174]

>>1278173
Sure if your rover can carry a car battery.

[Anonymous No.1278184]

>>1278174
you reckon the power consumption will be too high? From some preliminary calculations I should be able to get a few hours of autonomy before running out of juice. It was a while ago, but I think I used the max rated current and nominal voltage for the pi.

[Anonymous No.1278210]

>>1277158
>personal hentai collection
>kids

This fucking website man

[Anonymous No.1278315]

>>1278173
>>1278184
upon further research, any sort of decently sized and specced IR camera seems to be way too expensive for me.

[Anonymous No.1278324]

>>1278184
U need at least 2.5 amps continuous for a stable pi. I reccomend 3. Undervoltage warnings will tell you what's up. It doesn't do this all day just when it demands it. If your short all bets are off.

3a x 2hours = 6amp hours.

[Anonymous No.1278339]

>>1263074
If I remember correctly, the audrino had its own proprietary software that you could use to program it. I assume the raspberry pi would have something similar, but I’m not sure...

[Anonymous No.1278341]

>>1263074
Just use the pi. It's a full blown Linux pc.
>>1278339
Arduino needs compiled binaries to be uploaded. Pi is a Linux machine. Not the same.

[Anonymous No.1279756]

>>1263085
Hi josh

[Anonymous No.1279776]

>>1263095
>>1263074
Configure the pi to have a static ip address. Otherwise it may change when it or your router are rebooted. You can edit your hosts file to map the static ip to a domain name, so you don't have to remember 192.168.0.xxx every time.

I don't think you need to install a telnet server as the pi has an ssh daemon running by default iirc

[Anonymous No.1279871]

>>1279776
>don't think you need to install a telnet server as the pi has an ssh daemon running by default iirc

the RasPi runs dozens of Os'es so you cant make general statements like that w/o specifying which one you're talking about.

[Anonymous No.1280038]

>>1279871
You're right; I completely overlooked that. I was talking about Raspbian.

[Anonymous No.1280170]

>>1263389
what parts did you use/ how did you do this. i need to do something similar.

[Anonymous No.1280580]

Total noob question. Does the rpi have a media player built in to raspbian? Is the video rendering fast enough to play movies and whatnot?

Basically, I have a pi zero w, and all I want to do is plug it in to my tv, plug a usb drive full of movies in to it, and watch the movies. Or, store the movies on another computer and wirelessly stream to the pi. Is there a better OS to use than raspbian? Again, sorry for the noob question.

[Anonymous No.1280770]

>>1280580
I think pi zero hardware is not strong enough for that. You should try to put a kodi distri on raspberry pi 3. It 's a distri made for movie playing.

Don't apologise for noob being. We are on /diy for improve and fun.

[Anonymous No.1281036]

>>1280580

all the RasPis can play 1080p video as long as the video chip understands the format. H264, for example, the most common format you'll find, works fine. but raspbian is too slow on a zero. you need to download a kodi-based OS such as openelec or libreelec.

http://openelec.tv/forum/124-raspberry-pi/79023-raspberry-pi-zero

[Anonymous No.1281295]

Do you think it would be possible to fit 2 RPi inside Thinkpad T60? (maybe even more).
I think of making FULLY open-source laptop out of it, but I'm not sure if it would work.

(btw, /g/tard here)

[Anonymous No.1281512]

>>1281295

i've seen a few youtube videos where they do just that. it's a lot of work hooking up the display and keyboard, doesnt look very good with all the holes you have to make for the ports, and the results are underwhelming.

there's also a kit you can buy. it has a case with screen and keyboard, and you just add the pi and battery inside. once again, underwhelming.

[Anonymous No.1281577]

>>1271164
Make a gay little one-button "toothbrush tap" to help "save water", just a shitty little servo that turns the tap on for like 3 seconds whilst you rinse your toothbrush. Helps "correct wasteful behaviour with technology". The fucking retards at your school will jerk off to those sort of statements.

[Anonymous No.1281580]

>>1281295
RPI is *not* open source.

There are a number of similar boards listed here:
https://en.wikipedia.org/wiki/Open-source_computing_hardware

[Anonymous No.1281718]

rate my purchase

also has anyone tried https://erlerobotics.com/blog/product/pxfmini/

its a all in 1 drone controller phat

[Anonymous No.1281946]

Hi!
I wanna make my rpi 3 portable using my phone as a screen&keyboard and some external batteries I have. Do you guys have any suggestions how to use/load 2 external batteries at once, like if one is depleted, the rpi should suck power from the other one?(Cheap version preffered)

[Anonymous No.1281948]

>>1281946
Just cut out the middleman and run Linux under chroot on your phone, VNC into it and use bluetooth m+kb. I did that for a while and it works fine.

[Anonymous No.1281955]

>>1281948
Unfortunately, my phone can't run NetHunter so that's a no go :(

[Anonymous No.1281958]

>>1281955
What the hell is nethunter

[Anonymous No.1281972]

>>1281958
https://www.kali.org/kali-linux-nethunter/
it's a "made for phones" version of linux pentesting distribution

[Anonymous No.1282693]

my rpi 3 is just sitting in my drawer and I was going to sell it but I can't find the power adapter anywhere
what do

[Anonymous No.1282735]

I'm programming a rpi2 to send a 433 mhz code with Go. I've been trying to port the code from sui77/rc-switch. However when sending the code, I'm either getting garbage or something very strange.

I know that the physical connections are good, because trying with other tools(433utils) it works. I also put a led in the respective pin to make sure Go is setting it to high(which he is). I'm guessing the pulse is fucked up?

Does Go have some time/sleep issue in arm/rpi?

[Anonymous No.1282882]

>>1282735
>>1282735
I "solved" it. I was building and running the binary inside a docker container. Once I copied the binary to the host and run it from the host, it actually worked. I guess docker has some issues the time precision?

[Anonymous No.1282894]

>>1281580
got to give it to them they cunningly created a false impression

[Anonymous No.1282898]

>>1281718
>open source hardware sticker

[Anonymous No.1282997]

>>1263125
It passes the butter.

[Anonymous No.1283160]

>>1282997
Rick and Morty is design for /diy/ reference.

[Anonymous No.1284643]

If you want a media center get the odroid c2, can run high definition. Also you don't need a an entire graphical desktop environment, get kodi-fb and work from the terminal

[Anonymous No.1284724]

>>1284643

whats the source of the pic? would be nice to follow this info as it's updated.

[Anonymous No.1284838]

>>1263389
Cool clock, Ahmed

[Anonymous No.1284841]

>>1269554
exactly. The fact that you even had to explain that is saddening.
>design flaw
what a fucking retard.

IF YOU DON'T LIKE IT, BUILD IT THE WAY YOU WANT IT TO BE.

[Anonymous No.1284846]

>>1275375
Definitely might have to use this tech to monitor my....dry herb storage.

[Anonymous No.1284847]

>>1275387
What would be the best way to scale this up for storing several pounds of "cigars"?

[Anonymous No.1284980]

>>1263511
I make and sell these lil beauties

[Anonymous No.1284995]

>>1270603
Owncloud is dead. Development moved to Nextcloud.

[Anonymous No.1285210]

>>1284846
>>1284847
I don't know what kind of humidity your leaf requires, but the principle should be the same. I'd just get a larger humidor, although they can get pretty expensive for the larger sizes. Try looking for humidifiers that set the RH around what you need, or if the optimum is around 70% like with cigars then you can just use a crystal gel humidifier with distilled water / propylene glycol like the one used here. As far as the tech for monitoring the RH, there shouldn't be any modifications necessary. If you end up getting a very large humidor or even two separate ones, it's easy to just connect two sensors to the pi. In fact the pre-written code I used supports two sensors by default, so it should be trivial.

[Anonymous No.1286498]

So, is it possible to configure dyndns on a raspberry pi? I have a zero-w and I need it to have a constant web address regardless of what network it logs on to.

[Anonymous No.1286525]

>>1266799
yes you get plenty good speeds
my LAN speeds are usually around 12MB/s which isn't bad at all

[Anonymous No.1286708]

finally found a use for my pi.

I used it to turn my old deskjet wired printer into a wireless google cloud printer. Now I don't have to ask my wife to print stuff for me :)

[Anonymous No.1286710]

>>1275375
You should refine tgis and contact a pro wood worker. You could shill these out faster than u can maoe them anon.

[Anonymous No.1286711]

>>1284980
U make bank?

[Anonymous No.1286787]

I ran a mushroom farm a while back with a rpi.
https://youtu.be/NS92KtzxCfE
I will be posting more videos soon. Im a noob programmer pls no bully.

[Anonymous No.1287463]

>>1262741
I want to set up a small water pump run off of the same portable power source as my rpi setup, a 5v battery bank. how do I determine which pump would work best in that setup?

[Anonymous No.1288605]

>>1287463

generally, pumps dont work at 5V. the only exception i found was from a toy squirt gun that operated from 3 AA cells, or 4.5V.

[Anonymous No.1289417]

>>1287463
You gonna want a relay to control a pump son. You might be able to get a sump pump that runs on a 12vv car battery but cheaper to prolly get a pond pump with ac plug.

[Anonymous No.1289430]

>>1286787
That looks pretty amazing, anon.

What kind of mushrooms?
Do you worry bad things growing in your farm through spores in the air/other contamination?

[Anonymous No.1289434]

>>1284643
No beaglebone black?

[Anonymous No.1290667]

>>1284724
From hardkernel.

[Anonymous No.1290683]

>>1267536
>>1267540
This is why you should buy blank plugs and solder the wires on yourself

[Anonymous No.1290780]

>>1267537

I think you should check into USB/HDMI extensions for front panel usage.

[Anonymous No.1291064]

>>1275817
Yeah, because a couple of RPi's will get the room temperature over 100 celsius. And i think a lot of modern plywood self ignite a much higher temperature than that.

[Anonymous No.1291218]

Question. is BeagleBone X15 generally compatible with RPi stuff like cameras, displays, cases(optional), software?
I really would like to buy that one because of OPEN SORESSS, but I'm afraid it wouldn't be able to run anything

[Anonymous No.1291949]

control system for 1000 cannabis plants

[Anonymous No.1291950]

>>1291949
I guess this one is nicer

[Anonymous No.1291955]

Anyone have any experience making a drum machine with a pi?
A friend and I are trying to create a stripped down Roland 808. He codes, I build.

[Anonymous No.1293557]

>>1286787
cool setup, you have a new sub

[Anonymous No.1293587]

>>1284643
No rtc. What a shame.

[Anonymous No.1293709]

>>1263095
For VNC-likes, Parsec.tv works the best. Better than a Steam Link if you are into that

[Anonymous No.1293815]

>>1293587
>No rtc. What a shame.
When would that be an issue? Most applications are going to have a network connection these days, and for the handful that don't you can always just add a clock via I2C.

[Anonymous No.1293846]

Sorry if this idea seems kinda retarded, but I've grown fond of it

Basically, I want to make a speed reader thingy such as gif related, using a raspberry pi and a backlit lcd, I would mount it on the wall in front of my bed so I can read stuff before falling asleep, the backlit display is obviously there to read with the lights turned off in the room.

I have some programming experience, but I don't know if regular backlit LCD displays would be able to handle 600+ WPM, or whether the raspberry pi is the cheapest hardware I could use to power this thing.

My idea consists of adding a small wireless dongle and an lcd to an embedded device, and then running a daemon on the device, it will wait for a client to connect and send text, which will be displayed at the speed that the user picks. I will build an android app to open PDFs/epubs/whatever, select the text, and then transmit the data and WPM setting to the daemon, via wireless connection.

I think it's kinda neat, but I've had some retarded ideas before, any suggestions or thoughts?

[Anonymous No.1293925]

First time in this board. Can someone recommend a raspberry pi for a first timer?

[Anonymous No.1293959]

>>1293925
Many options, but on amazon and other sites, you have to pay attention when buying. There is 4 items I suggest you make sure is in the bundle:
>Raspberry Pi 3 (Quad core, 1 gb ram)
>Power adapter
>case
>heat sink for 2 chips
Now what you want in the mix of above is to either get a microSD card and load it yourself with a Pi OS or have it bundled. Some packages comes with other toys to expand what you can do with it project wise. There is also game controllers you can get if you are looking to turn it into a poor man's NES/SNES/N64/Genesis console.

[Anonymous No.1293985]

>>1274013
>y tho, when all you really need is *a* Linux distro that works?
think about it buddy

[Anonymous No.1296167]

>>1293959
Ok, so with that I can begin something basic? I know it's possibly overdone, but I was thinking of doing a little rover-like thing with a live feed camera (similar to that of a racing drone)

[Anonymous No.1297450]

>>1263236
That's fucking awesome.

[Anonymous No.1297454]

>>1297450
>That's fucking awesome.

well no, it isn't awesome in any way.

technically, it shows competence.

in any other way, it shows stupidity. unless you are a polar bear trying to find a fuckjng iceberg.

[Anonymous No.1297497]

>>1263389
bomb with a camera, how can i make this

[Anonymous No.1297498]

>>1262741
I was looking at raspberrypi last night and I was surprised at how powerful the newest generation is.

[Anonymous No.1297806]

>>1284643
Can you include Asus tinkerboard?

[Anonymous No.1297884]

How much conncected devices can a raspberry webserver handle?

I am using the pi 2b

[Anonymous No.1297886]

>>1297884
Since everything is connected over the same internal USB hub anyway, not many simultaneously.

[Anonymous No.1297889]

I can use raspberry pi 3 to hack the wifi school and hack the facebook classmate's

[Anonymous No.1297890]

I can use the raspberry pi and kali linux for hack the school wi-fi

[Anonymous No.1297934]

>>1293587
>>1293815
so you can't have a timer (independent of CPU)?

[Anonymous No.1298344]

Are there any important things regarding security to be considered when using the pi as a webserver?

[Anonymous No.1298349]

>>1298344
The same shit like for real servers. Use public key authentication for SSH, update your stuff on a regular basis etc.

[Anonymous No.1298838]

>>1262741
If you Google, "NESPI" you can find these neat NES cases made for the Raspberry Pi. They really are a quality made case! I have two of my RetroPie builds in these cases. I also tried my Asus Tinkerboard, and it also fit just fine. If you know your way around Linux, you can clean up RetroPie to have a nice locked down user-interface so they function as consoles. That is what I did! I have an image with everything preloaded (drivers, games, etc...) I just write the image to a flash drive and I am done. Although it took me hours of prior configuring to make that image just perfect.