Raspberry Pi

Hey everybody!  Do you like pi?  More specifically, Raspberry Pi? Well I made this to you can get help, share ideas, and chat about it! 

Posted by nancyjohns 4 years ago

Raspberry Pi Category

Is it possible to make a raspberry pi category in the technology section? Due to the increase in projects and popularity with micro-computers, it would be great to create its own little category.  Any Supporters? 

Posted by cam1235 6 years ago

Pi day pie challenge question

Is this contest limited to edible, food base pies or can you make a pie from some other material, like say for example a felt, yarn or clay pie.

Posted by ChrysN 6 years ago

Basic info on the Rasberry Pi

I heard that you can install Android on a Rasberry Pi. Could I get one and do that and be able to do these three things?? 1. Download apps and use them 2. Go to the internet 3. Listen to music Thanks!

Posted by HavocRC 5 years ago


Hi all looking at getting involved and getting a raspberry pi finally http://www.amazon.co.uk/Raspberry-Pi-Desktop-700MHz-Processor/dp/B00LPESRUK/ref=sr_1_1?ie=UTF8&qid;=1407694298&sr;=8-1&keywords;=raspberry+pi is that the one I should get? I plan on getting it with a case and wifi adapter thanks map

Posted by losmapito 4 years ago

raspberry pi in portable DVD player

Hi! i have an old dvd player that i dont use. i would like to know how i would go about of turning it into a mobile raspberry pi. i dont care for the DVD playing ability. i want to hard wire the PI directly into the player without using actual AV cables. anyone know how i could go about this or have any links for this? thanks

Posted by hiyall1 1 year ago

projek FYP

I want use raspberry pi to to my projek FYP , hv any suggestion simple but intereating

Posted by cheepeisun 3 years ago

How to Remember Pi!

This nifty poem I created is called a "piem", a pi poem. I only made a poem for the first 10 digits, but you can make more. For example, the first word has 3 letters, representing the # 3. The second has 1 letter, representing the # 1. et cetera. Here is one I made up:    For a week a broke belittled he person aided all. Notice the coinciding #s: 3     1    4    1    5          9        2       6         5     3  -->  3.141592653 --> the first 10 digits of pi.

Posted by In Actuality 6 years ago

Channel Suggestion

There are Channels for all kinds of things from Art to Food to Laptops etc. I think a new Channel dedicated to Raspberry Pi would be brilliant! There's one for Arduino so why not RP?

Posted by Defractal 5 years ago

Raspberry Pi 24/7 Panda Cam

So I'm trying to make a birthday present for my girlfriend and something for her new apartment. She loves pandas and loves to watch the 24 hour live panda cams at the Smithsonian National Zoo. So I came across the idea of using a raspberry pi and a digital photo frame monitor to give a live feed of the pandas 24/7. Only problem is, I didn't realize Rasbian doesn't support Adobe Flash and there's no way to view the feed. Does anyone know if ARM Linux would support the feed. Or have another completely different take on a way to tackle this project? I want it pretty seamless so all see has to do it plug in the power supply and maybe an Ethernet cable and the rest be taken care of with a python script or something similar. I program for a living as well have a degree in Electrical Engineering so even if its complicated let me have it. I appreciate your help. Thanks!

Posted by pjbrof 4 years ago

head set help!

I need help with my headset, its just a little microphone and speaker, but when i put it in the headphone port, it doesnt read anything on voice recorder thing. Help please

Posted by wolf555hound 10 years ago

Raspberry Pi Philippines

Raspberry Pi Philippines

Posted by lpuyod 5 years ago

happy pi day!

For me, maybe not for you it is pi day today!march 14 is pi day (3/14)check out these links for more pihttp://www.vvc.edu/ph/TonerS/mathpi.htmlhttp://pi.ytmnd.com/http://www.ballandclaw.com/upi/pi.50000.htmlhave fun :Pedit: okay, maybe you didnt know this yet but pi day was over a month ago now!

Posted by ich bin ein pyro 10 years ago

Free Raspberry Pi?

I can't afford one currently and i thought it wouldn't hurt anything if i asked the community of makers if they had a extra raspberry pi to give away or if they had a raspberry pi model A that has been replaced by the model B.

Posted by prototypeBOTs 5 years ago

Raspberry Pi

Hello everyone I wanted some suggestions from the users of raspberry pi on where to start after getting the raspberry pi. I've searched the web and found a lot of things, but they weren't exactly beginners friendly. I am upgrading from an Arduino to a Raspberry pi and the difference between them is enormous. Arduino seemed a lot more welcoming and easier compared to Raspberry pi. So do you guys have some tips or places to start from for me? Any help is appreciated. Thank You

Posted by robo10302 3 years ago

Can anyone recommend a good Raspberry Pi case?

Hello! I am looking for a good Raspberry Pi case for a project.  I will be selling it so it needs to look smart, be highly robust and not be expensive.  Any recommendations?

Posted by T0BY 3 years ago

The Sounds of Pi

This is a rather interesting website... It converts the first 10,000 digits of pi into sounds.Here is the website!It will come up with some keys. You then select a note for 1's, then one for 2's, then one for 3's, and so forth. It's hard for me to explain, just give it a shot. There are instructions on the website.

Posted by its a lion 10 years ago

mirror cell phone to comp or other similar device

Does any body know if a company makes a device that can wirelessly display your phones information on a small monitor or lcd device. My thought is to replace my factory GM radio with a raspberry pi and have the Pi have a "live" view of my cell phones screen for GPS google play RDIO etc.

Posted by inotnrml 3 years ago

RPi2: OSMC Terminal Issue

I am trying to make some changes to OSMC through the terminal, but there is an issue with the login portion of it. When I quit OSMC, and wait for the boot screen, I hit Esc, and it goes into the terminal. Next, the login. I enter "osmc", then its to the password. But, it refuses to let me type anything in when I get to this stage. If I hit enter, it tells me that my password is wrong and then it goes back to prompting me to login. After about 15 seconds, it just continues to boot into OSMC. Why on earth will it not let me enter a password, and how do I fix it?

Posted by Dashing Rainbow Dash 2 years ago

Dell Inspiron (works...ish) for raspberry pi

Will trade a working black dell Inspiron for a working raspberry pi of any kind.the dell runs windows Xp but has no keyboard and is unhinged.Pictures by request.

Posted by Legitsmitty 4 years ago

Calculating Pi using simple JavaScript

One day I was bored and wanted to calculate Pi for myself. After finding out the Leibniz formula for Pi. When it is solved for Pi one gets: Pi=4/1-4/3+4/5-4/7... And so on since it's an infinite series. Since one can see a pattern that can easily be defined I concluded that a simple program using a loop could be made. I decided on using JavaScript for its ease of use and use a for loop. The program I made at first was mainly: var Pi=0; var n=1; for (i=0;i<=1000;i++) { Pi=Pi+(4/n) n=n+2 Pi=Pi-(4/n) n=n+2 } Where the variable "Pi" is the value of Pi, "i" is the number of times the loop is repeated, and "n" is just a variable to help in the formula. This I however found could further simplified to: var Pi=0; var n=1; for (i=0;i<=1000;i++) { Pi=Pi+(4/n)-(4/(n+2)) n=n+4 } Of course the more times the loop is repeated, the more accurate your value of Pi gets, and while 1000 may seem like a large number, the value of Pi which it calculated is wrong after the 3rd decimal point. I've had it repeat over 100,000 times and it gets more accurate, however, remember that making the number of repeats can slow down and even crash your browser (I speak from experience). If you want some ready made scripting, then here's some scripting I've made which lets you easily control the amount of loop repeats. It is based as an HTML document: //Made by Masterdude var c=0; function Calculate() { var c=prompt("Enter number of cycles:","0"); if (c>0) { var Pi=0; var n=1; for (i=0;i<=c;i++) { Pi=Pi+(4/n)-(4/(n+2)) n=n+4 } alert(Pi); } else { alert("Canceled or Error in input: Input must be positive."); } }

Posted by Masterdude 7 years ago

Raspberry pi

Hello, I have to create webcam server system that consist USB web camera, raspberry pi. The system will function like this : 1. Raspberry Pi will take a pictures every 30 seconds. 2. raspberry pi have to send the pictures (MMS of the picture) to the owner mobile phone and email ID. i just want to ask several question. 1. can raspberry pi send MMS? i think i want to connect raspberry pie to the wireless broadband modem, so it will send MMS thru email. possible or not? or there is another alternative to do this thing? 2. Is there any chances owner can reply via mobile phone or email? how the owner mobile phone want to confirm back to raspberry pi? reply the email or what? i hope anybody can help me. and also can provide me any website link that can help me to understand more about all of this.

Posted by chaitanyabysani 5 years ago

Raspberry Pi PC temp checker

Hello forum, I'm planning on buying a raspberry Pi this week. I know a couple programming languages, but only the basics. I've had this idea for quite a while: Connect multiple thermal sensors to the Pi, and then connect the Pi to my old Android cellphone (Nexus 2), and mount the phone to my PC case, so I get read outs for the PC components (CPU, VGA, PSU, HDD, and so on). Can someone help me, and explain how I can do this? I see it as a fun hobby to get into programming, and also reuse a cell phone, so I don't throw it away.

Posted by GeorgeK31 2 years ago

Sound tower not working - repurpose with Raspberry Pi?

My soundtower quit working. It powers on but no sound from an ipod or from component audio cables in the back.  Are the speakers themselves repurposable perhaps by removing the electronic boards and replacing with a Raspberry Pi?  If not, it's going to the dump.

Posted by mazelady 1 year ago

video pinout

Hello, I am trying to connect the LCD from a Toshiba 4020 to a raspberry pi but i cannot find the pinouts of the video connector, and I cant find anything online about this laptop, does anybody know how to convert this connector to HDMI or would i need a converter? 

Posted by daniel12354 2 years ago

Raspberry Pi and arduino bluetooth module

Hi there, I'm currently workin on a project which consist of controlling a arduino robot ( with this [url]https://www.adafruit.com/products/1588[/url] bluetooth module on it ) from my raspberry pi. I found this tutorial [url]http://blog.dawnrobotics.co.uk/2013/11/talking-to-a-bluetooth-serial-module-with-a-raspberry-pi/[/url] and followed it without problems ( i just had troubles pairing my devices but now it seem to be OK  ;)  ). So i wrote a little piece of code ( i did not try the code in the tutorial ) to see if my robot was receiving order from my Pi but when i run this code, there is an error : [code]Traceback (most recent call last):   File "test.py", line 6, in     bluetoothSerial.write("avancer")   File "/usr/lib/python2.7/dist-packages/serial/serialposix.py", line 485, in write     raise SerialException('write failed: %s' % (v,)) serial.serialutil.SerialException: write failed: [Errno 107] Transport endpoint is not connected [/code] Here is the code : [code]#! /usr/bin/python import serial import time bluetoothSerial = serial.Serial( "/dev/rfcomm1", baudrate=9600 ) time.sleep(5) bluetoothSerial.write( "forward") #Which normally make the robot go forward[/code] Please help, It's been two days that I try to solve this problem  :cry: PS: Sorry for my English ( i'm french and high school student) Thanks :)

Posted by retrobotic 4 years ago

NES Project. Where can I buy a shell?

Hi, im making a NES computer kind of like the one already on instructables, but with a Raspberry Pi. I just need to know how I can buy the shell (Case? I dont know) of the NES. I dont want to buy and scrap an NES though(If possible). I wanna keep those guys alive :) Does anyone have any ideas as to how I can get one? Thanks alot! :D

Posted by crazyJ113 5 years ago

Raspberry Pi 3 Interactive Led Strip Wall

At the moment we're working on an interactive led screen wall for the entrance hall of our new studio. I've setup the following frame (http://i66.tinypic.com/33ll30j.jpg)  with 17meters of WS2812B addressable led strips.We're using the Neopixel library for rasp (https://github.com/jgarff/rpi_ws281x) and it works like a charm with the rasp 3. Anyway they next step is to control these ledstrips so they work as one big display. I had a look on the internet and a lot of people advices to work with the FadeCandy from Adafruits but I want to know if there are other solutions using only Python and write software to control the ledstrips. The purpose is to use the rasp's camera module like this guy did http://andydoro.com/ledmirror/images/stills/ledmirror01.jpg so when someone is entering the room, his reflection appears on the wall... Any information / tips / other solutions about how to achieve what I described above are welcome. Thanks

Posted by Fightbean 2 years ago

Google knows what pi equals?

Well...see http://www.google.com/search?q=pi&ie;=utf-8&oe;=utf-8&aq;=t&rls;=org.mozilla:en-US:official&client;=firefox-aGoogle says: pi = 3.14159265Kind of funny. :)

Posted by ReCreate 9 years ago

Controlling ServoBlaster with Keyboard Keys?

I am working on a project involving multiple servos, a pi, Servoblaster, and a short period of time left. What i was wondering, is that is there a "interface" of sorts for servoblaster that would allow me to control the servos with keys on my keyboard? I saw a thread where someone made an interface where you could switch between servo pins using left and right arrow keys, and adjust the servo with the up and down arrow keys. However, this could only be done one at a time. What i want, is to be able to control all 7 servos with 14 keys. Because of the lack of time (This is needs to be done before next week Saturday) i don't care if i have to access terminal with putty to control said interface. (A web page would be nice, but again, lack of time, and first i need the actual interface.) It really isn't an interface, i guess... I don't need to see what i am pushing/what is happening, so long as the servos move when the keys are pressed. I have a custom ./servod, which basically changes pin layout, and the max and min for the servos. Beyond that, ServoBlaster is vanilla. How would i do this? I haven't written any code for Servoblaster, nor any massive coding in general (I know basics of Python, nothing more.) Is there something like this that exists? Anyone have free time to make it? I am willing to try, so long as i am told what needs to be done. (Time is short, and i am busy. Though, i will still make an effort.) Thanks for your time!

Posted by RocketPenguin 3 years ago

Computer science in schools - advice and arguments needed.

You may have heard that UK schools will be teaching Computer Science from September, instead of teaching ICT (= "how to use Microsoft products"). Most people will agree that this is a good thing, since the basics of Office can be grasped in an hour or so, and hardly need the current years of study. However, last year, whilst several thousand people qualified as ICT teachers, only 3 people qualified as Computer Science teachers.  Many existing ICT teachers only ended up as ICT teachers by chance.  That group includes me, but I am fairly sure that I will be asked to teach Computer Science next year. So, here's the thing:  I am not confident that those with a grasp on the purse-strings know enough to make an informed decision regarding the route to follow in September, investment-wise, and  I know I'm not. Possible routes that occur to me; The school teaches programming etc on PCs, using software to model the device being controlled by the programmes children write. The school invests in Arduino or Arduino clones, and forges closer links between the ICT and Technology departments to teach Computer Science through the medium of robotics. The school invests in Raspberry Pi, plus the required peripherals, and teaches programming of computers from the ground up. In all three cases, the existing ICT suits would remain as a resource for other departments to use. In 2 & 3, I would like to see the hardware being treated as a consumable, much like printer ink or wood. In all three cases, nobody currently employed has any skill in those areas and has no time to be formally trained in those areas, so would need to learn alongside the pupils. What do you think? Which of these routes should I encourage my school to go down?  Why? What other options are there?

Posted by Kiteman 6 years ago

Android on Raspberry Pi???

Hey Instructablers! I was wondering if it is possible to put Android software on a Raspberry Pi? if not could you put ubuntu on it??? just wondering... Thanks to anyone who responds!!!!!!

Posted by jackjackboom 5 years ago

VirtualBoyadvance for raspberry pi zero

I just got my raspberry pi a couple of days ago and  want to put a gba emulator on it. I saw a emulator for it called visual boy advance for the raspberry pi zero, but it comes in a .deb file, could some one help me install this to my pi please   download link: http://www.mediafire.com/download/rarkjssi65hly0r/vbam-r947_i386.deb

Posted by minecraftpotato 2 years ago

Raspberry Pi Zero W

I received a Raspberry Pi Zero W kit (from Adafruit) over the holidays, but it didn't come with any doco. And I haven't found much by Googling. Does anyone know of information that could help me get started? I haven't worked with any Raspberry Pi product.

Posted by arshag 9 months ago

Can't the Raspberry Pi Multi-task?

I've seen a lot of tutorials showing how to do this or that cool thing with your Raspberry Pi, but I haven't seen any tutorials showing how to do several things at once with the device. For instance, is it even possible to control a stepper motor and servo motor all on one Pi?

Posted by BradysoBOT 5 years ago



Posted by arnablue 7 days ago

Rasp Pi 3

Hi! I am planning to buy raspberry pi 3 as summers are just around the corner. I don't have any previous experience with things like arduino or rasp pi but I am pretty much familiar with electronics. So,I wanted to know what all things should I buy along with rap pi ?And how should I start when I get everything? Thanks!

Posted by pranjal12 2 years ago

What is your favorite Pi project

I happened to log onto ADAfruit today in the 10 min that they had some of the new (and sold out everywhere) Raspberry Pi 2's.  I picked one up because I'm curious about the new Windows 10 (mobile if I understand correctly) support...that and they are flat out awesome. I want to know the your favorite Pi project.  Either one you've seen or build.  Links are encouraged!

Posted by More Cowbell 3 years ago

Has anyone tried to use raspberry pi to keep out robo callers

Has anyone tried to set up a raspberry pi to intercept robot callers but let live people through?

Posted by Bard 4 years ago

Rspberry PI I2C message control through Web portal

I need help to build web page which can control devices connected to raspberry pi through I2c . For example if i connected some DAC IC with raspberry pi . i i should able to adjust that DAC value from web. Please help us

Posted by Logen 3 years ago

Web server hosting on Raspberry pi using usb Dongle

I need to host a webpage on Raspberry pi but for internet connection i can't use a router or wifi card. I need to know that can usb Dongle be used to provide public ip to a server running on raspberry pi so that it can be accessible over internet.

Posted by prithvi88 3 years ago

PDA screen for Raspberry Pi

Does anyone know if I could use a Dell Axim x51 screen as a monitor for my a Raspberry Pi and if so how? Thanks Denny

Posted by Leviset 1 year ago

Any one can give me a free raspberry pi ?

Can any one please give me a raspberry pi or any other fruit board ? I want to learn programing and I will happy if any one give me

Posted by Soumojit 1 year ago

Connect multiple Reed Switches to one Raspberry pi

Hi, I was wondering if its possible to connect multiple reed switches to 1 Raspberry Pi so i can get notified whenever 1 or more switches gets triggerd. thank you.

Posted by archi0112 1 year ago

Fun Facts about Pi Day

The Pi Day Pie Contest is open until March 31st. Share a pie recipe to win a stand mixer. There's even a special judge's prize for the best pi-themed decoration. This year's Pi Day is special, because it's Pi Day ALL MONTH LONG. The third month of the fourteenth year (3/14) lasts for the duration of March, and it won't happen again for another hundred years. So get baking! Some miscellaneous Pi facts: (1) Pi is the ratio of a circle’s circumference to its diameter. Pie is a baked dish made of sweet or savory filling wrapped in pastry dough. They are often, but not always, circular. Expressed in terms of pie, π is the ratio of the diameter of the pan to the length of the crust. (2) Pi didn’t always have a name, much less a sweet Greek letter of its own. Contemporary use of the π symbol is thanks to mathematician William Jones, who in 1706 proposed using the letter p to indicate perimeter. Leonhard Euler, the same guy who brought you functional notation in the form of f(x), popularized π by including it in his work around 1737. Euler is responsible for many of the letters that bedevil beginning algebra students: i for the square root of -1, e for the base of the natural logarithm, and much of the notation for trigonometric functions. There is a Wikipedia page devoted to the list of things named after him, and it is enough to make an English major blanche in terror. (3) Pi Day is officially a thing, at least in the United States. In 2009, House Resolution 224 officially recognized Pi Day as a holiday on March 14th. Presumably as a kick in the pants for the education system, not as a literal example of political pork. Resolved, That the House of Representatives-- (1) supports the designation of a `Pi Day' and its celebration around the world; (2) recognizes the continuing importance of National Science Foundation's math and science education programs; and (3) encourages schools and educators to observe the day with appropriate activities that teach students about Pi and engage them about the study of mathematics. (4) Pi is vaguely described in 1 Kings 7:23-26 in the King James version of the Bible. Solomon's pool should probably have been 31.4 cubits around, but he deserves some credit for getting pretty dang close. (5) Pie Day is on January 23rd, according to the American Pie Council, but they're still cool with celebrating Pi Day with pies.

Posted by wilgubeast 4 years ago

android app -> raspberry pi -> arduino !!!

Hey! I want to make a very simple android app with buttons... Each button has to be a "shortcut" for a specific command which will be sent from my phone to raspberry pi 3 with ssh.. These commands will simply power some arduino pins to give 5V ( like ser.write('3') which turns on pin 3 ). But I can't figure out the way to do what i describe with bold... Any help??

Posted by ΦώτηςΘ 1 year ago

Arduino or Raspberry Pi Controlled Lighting scemes for Lightstrips

Hello I'm trying to make a lighting setup like Star Trek Voyager, With custom lighting scemes for allert modes etc I will have to control 8 induvidual lightstrips with an arduino or raspberry Pi. And have some sort of control mechanisme to set the individual modes. I seen some examples online but they all used wifi connections, And I like a different option. Any help would be very appriciated. Regards, Ronald van Erp

Posted by Ronaldv37 1 year ago

Sciences PI Plate

Hi every ones, I'm a young engenner in plant biotechnology. On my free time i try to create an open source plate for the Raspberry pi which has lots of functionality very usefull for science project (Plant growing, Invitro cell, hydroponic control, compotemental study...) I'm really a beginer in electronics, but i read a lot electronic book, looking schematic and see video. This plate have : -8x relay 220V 5A control by a Darlington Array -8x Analog input -4x BNC connector connect to 4 Atlas Scientific Stamp (Ph, EC, DO...) -RTC clock (to be sure of time when data are store on database) -LCD screen 16x2 to facilite the reading without computer -This project will come with backend/frontend distribution Before i order all parts and PCB, i wondering if you be able to check my schematic to validate it and maybe improve it  :P Schematic Image files (2Mo) Fritzing file FZZ I have few question too  : 1/ Can i connect all my ICs and LCD to my external power supply, i read on internet this is better than connect on the 5V from the Raspberry PI? 2/ If i connect all 5V on my external supply how many amps i have to provide (the sum of all amps require by parts)? 3/ Do you know an I2C IC can replace the 74HC4052 to make all the plate in I2C and made it usable by more than a Raspberry PI ? (if it interesting) 4/ Which width is recommand for the wire on my pcb 24 mil (or smaller), and for the 220V Relay the biggest ?? Thanks you for your help, and your website ! Regards Erwan

Posted by wanoo 5 years ago

An easy to sourc,e EASY to build, cheap laser cutter instructable

Would anybody be interested in creating a new laser cutter instructable. I saw this one: https://www.instructables.com/id/Laser-cutter-start-slicing-stuff-for-under-50-dol/?ALLSTEPS , But it seemed WAYY to difficult, to difficult to get the parts, and not super high quality. If anybody could do an instructable for this, (possibly with a RAS PI, it would be much appreciated. We want a cheap Laser CUTTER!!!!

Posted by 508Parkour 5 years ago

temperature controller

I have a code that can increase the duty cycle of the pmw output to control the brightness of my bulb and i have lm35 conneted next to the bulb to sense the temperature and now my problem is i have to add two more additional switches for my gain and make the other two the setpoint of my temp,and i de an attachment of my code

Posted by PapaneE 3 years ago