Questions relating to the physical components that the Raspberry Pi consists of.

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Are RPi peripherals from version 1 compatible with RPi B?

I have some original Raspberry Pi devices that I want to use with the RPi B version. Are old Raspberry Pi Shields compatible with the new Raspberry pi? Specifically, I have an Xtrinsic MEMS Sensor ...
3
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1answer
33 views

RGB LED is not lighting up

I connected an RGB LED(common anode) via the GPIO, and tried to get it to light up, but for some reason when I run the command, the LED does not light up. Here's the code I'm using import RPi.GPIO ...
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37 views

Gpio state can't be changed when connected to a DC motor or led

I am using the pi4j library to control the gpios on the raspberry pi B, but I ran in the following problem: when I start a pi4j example like ControlGpioExample.java then the led(with resistor 220 ohm) ...
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2answers
37 views

How to have a Raspi trigger a Remote Control physically

I have a Remote Control for my windows shades and I would like to be able to trigger them using some software using a web interface or an android app. As I am an enthusiast programmer I would like to ...
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1answer
20 views

Stranded connector cables with raspberry pi

Is it safe to use stranded connector cables with raspberry pi? I suspect I blew my last RPi because I used the stranded connectors, don't want to get into the same situation again.
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78 views

What are the RUN pin holes on Raspberry Pi 2?

Inbetween the Display port, and the Activity LED on my Raspbery Pi 2, There are 2 holes boxed off, labled with: "Run". What are those pins? What do they do? is it a reset?
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2answers
60 views

Copy Protection, Intellectual Protection and Deployment Issues

After a time with the Raspberry Pi 2 Model B v1.1., i have the following concerns? I know it is focused to enhance vulnerable educational sectors, but it is possible to sell a product, based on the ...
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0answers
25 views

How to make a battery powered and re-programmable robot with raspberry pi? [closed]

Normally using a microcontroller what we do to make a robot: We write the code and compile it We connect the programmer to the computer and then transfer it to the microcontroller Now once we have ...
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2answers
70 views

Pi 2 Model B, display and TNC-Pi

Firstly I am new to the Raspberry world.I have purchased the following and it does not seem like they are compatible pin config and board/hole position. I noticed that the older PI had less PINs for ...
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1answer
81 views

Delay between bytes using py-spidev for SPI communication on Raspberry Pi

I am attempting to read/transfer data between an instrument and Raspberry pi 2, using the RPi as the Master and instrument as the slave. The data sheet states I must have a 9 ms delay between sending ...
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2answers
82 views

Resetting I2C? Or did I break my chip?

I'm connecting a TS45315 light sensor on an Adafruit breakoutboard to the I2C bus of my Raspberry. I access the data through the following simple Python script: ...
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0answers
48 views

Edimax EW-7811UN not detected by Pi, works fine on a PC

Hoping someone could help verify something for me. Up until a few days ago, my Edimax EW-7811UN was happily buzzing along. I was playing around with the GPIO pins when suddenly I noticed the blue ...
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1answer
106 views

How to wire up a DHT11 temperature sensor

I'm a Raspberry Pi (and hardware) noob and am trying to hook up a DHT11 temperature and humidity sensor. I've found two separate guides, and I'm seeking advice as to which I should follow. This UU ...
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1answer
226 views

Which raspberry pi model for playing with electronics, maybe more?

Raspberry Pi beginner here. I've been looking at these beasts for a while. I'm very comfortable with programming and command line, but want to start playing around with electronics powered by ...
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1answer
40 views

New Raspberry Pi SPI Interface Question

I was looking at the new Raspberry Pi. I wanted to know if the SPI Interface will be able to sample at a higher sampling rate. Does anyone have any information on this? According to this page, the ...
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2answers
63 views

Struggling with installation of Raspbian on sd card from a Windows 8 Machine

I am a first timer asking question here, and also a new Raspberry PI user (well, potential user). So, I bought a new raspberry PI 2 with 16 GB SD Card yesterday. The SD card was without Noobs, so I ...
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3answers
261 views

Using Wi-Fi Adapter reboots Pi

I'm using an Edimax EW-7811Un in my Raspberry Pi 2 under Raspbian. Version is Linux stickpi 3.18.7-v7+ #755 SMP PREEMPT Thu Feb 12 17:20:48 GMT 2015 armv7l (or at least that's the closest I can ...
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1answer
80 views

How to access SPI on Raspberry Pi B+

I tried searching here and other places. What is the best way to access the SPI and get the fastest speed out of it. My project involves interfacing the Pi with an ADC that is rated for 5Msps ...
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2answers
635 views

Should GPIO pins 13 and 14 be soldered together?

I just bought a new Model A+ board, and noticed that the GPIO pins 13 and 14 (board pins 21 and 23) are soldered together on the backside. This was not the case with my previous A+ board: see the two ...
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1answer
60 views

Accessing ADXL345

I'm trying to access an ADXL345 Accelerometer mounted on a Sparkfun breakoutboard via Python and I2C from a Raspberry B+. I'm following this tutorial However when trying to check for the sensor with ...
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1answer
38 views

Hire PI Developer to develop an analyitcs box based on raspberry pi

I am working on this new project to monitor signals from an STB box. I need a PI box to interface with the STB and i am looking for a PI developer? How do I hire someone?
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1answer
30 views

Can I span cable before microUSB input of Raspberry Pi without damaging it? [closed]

I have a Raspberry Pi B+ and I need to provide an external PCB with 5V|(~1A) which is controlled by RasPi. Since I assume that I cannot use GPIO pins to provide PCB with ~1A (as the current I need is ...
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1answer
409 views

LIRC / Raspberry PI 2 , No input

I want to use LIRC with my new RPI 2. To do that, I followed this tutorial. Basically it is telling me to do the following: Add this to your /etc/modules file: lirc_dev lirc_rpi gpio_in_pin=25 ...
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1answer
77 views

Piezo wiring for Raspberry Pi

I have a piezo element that I got from a song card, it looks like the one at: https://www.sparkfun.com/products/10293, and I was wondering whether it was safe to connect to my raspberry pi without a ...
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0answers
16 views

Developing drivers for HATs: is this a good practice?

I have designed a few HATs. Now about driving it, does this sounds like a good way doing it? The architecture described below is the driver layer designed for my custom kernel, but a stripped down ...
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1answer
79 views

Using Android phone as microphone for R PI B+

I'm planning to use Jasper for voice control on my Raspberry Pi B+. However, there are no microphone sockets and I do not have a USB mic. I would like to know if there is any way I could use my ...
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2answers
63 views

What are the possible OUIs for the Ethernet MAC address

I'm setting up a computer lab in which many Raspberry Pis are going to acquire IP addresses via DHCP. I'd like to have the DHCP server to differentiate between Raspberry Pis and other clients. What ...
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1answer
72 views

Can you back power the RPi2B? [duplicate]

I was wondering if the Raspberry 2 Model B can be back powered. From what I see here it should be possible. But in various other places it's been said that for the B+ it isn't possible and the 2B ...
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1answer
56 views

Raspberry Pi to sync lights to audio input from PC

So I'm wondering if it's possible to make the Raspberry Pi sync lights to sound coming from my PC. I would use an usb soundcard for a sound input and a usual audio cable. Right now I'm running ...
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1answer
61 views

Downloading Pictures From iPhone 6

I use gphoto2 to download pictures from my iPhone 5 to my Raspberry Pi. Since I upgraded to an iPhone 6 I only get an error telling me that it is "unsupported" device. Are there any alternatives? I've ...
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0answers
235 views

Using Raspberry Pi with Arduino GSM/GPRS Shield

Raspberry Pi Model B GEEETECH Arduino GPRS Shield V1.0 (bought from: bit.ly/1G0KYR7) ^ Similar somewhat to: Seeed's GPRS Shield V1.0 | Link: seeedstudio.com/wiki/GPRS_Shield_V1.0 (has more ...
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1answer
55 views

Can I make a bridge between GSM Arduino shield with a Raspberry Pi?

I am trying to do some work with Raspberry Pi, however, I have GSM Arduino shield laying at home. I want to give a voice-call using it. However, I still wondering how can I interface voice/mic, ...
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0answers
28 views

web server error-403 Forbidden error

I need help with a problem, I have, BOA installed, Now, inside my /var/www, I have more folders: so my fill tree is more like: /var/www/main-site Now, what I have is, at /var/www/index.html there ...
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0answers
24 views

Isnt Raspberry PI Fully open source hardware yet? [duplicate]

Almost ALL mobile processors are ARM, but sure a design can be made with an ARM Processor which is open source. This question is different from the question asked on How is Raspberry Pi "open ...
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1answer
154 views

Simulate GPIO pins

I would like to do some simulation of the Raspberry's GPIO pins, e.g. for automated testing and developing the scripts on another host that is not the RPi. Are there any existing ...
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2answers
94 views

Powering several LEDs from GPIO output

I'm currently working on a "rotating cube" project where a raspberry pi will be used to determine which cube face is at the top and any given time using an accelerometer and light it up with LEDs. ...
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2answers
2k views

How to install Waveshare SpotPear 4 inch LCD in RaspberryPI 2?

I've bought 4inch IPS LCD from WaveShare but cannot get it run on newest Raspberry PI 2. The original DVD comes with image which isn't compatible with RPI 2. Tried to follow this manual but without ...
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3answers
95 views

How can I send commands from Arduino to raspberrypi

I am making my baby-steps using raspberrypi. I am stuck in something. I am building a device that combine arduinà with raspberrypi. There are some sensors connected to arduino and others to Raspa ...
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2answers
116 views

Raspberry Pi Ethernet port not working after thunderstorm

I have a Raspberry Pi (512 Mb ram) running Arch Linux ARM, connected to my router working as a vpn server. After a thunderstorm, the Ethernet port stopped working. It won't even blink anymore. The ...
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1answer
255 views

Connect an android tablet touchscreen to a pi?

I have an android tablet (versus touchtab 7v dc) that unfortunately doesn't work any more. I wanted to know if there is any way I can salvage the touch-screen from the tablet and use it as a display ...
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2answers
158 views

Power regulation circuits on B+ vs 2 (light sensitivity)

I've seen recent articles on the Raspberry Pi 2 being affected by a light source (http://www.raspberrypi.org/forums/viewtopic.php?f=28&t=99042) . Apparently the cause is in the power regulation ...
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1answer
35 views

Raspberry pi ventilation needs when in enclosure [duplicate]

I am building a hollow book raspberry pi enclosure which has a small screen inside. Do I need to drill holes in the top of the book to allow heat to escape?
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149 views

controlling rgb led strip via spi and node js

I recently purchased a pi and a string of individually addressable rgb led lights from shenhzen kapata (actually amazon, but they're the ones who sell it) and I'm trying to control it with my ...
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1answer
62 views

Raspberry Pi newcomer questions

I have the Raspberry Pi model b+ 512mb and 8gbs noobs edition. I was wondering what basic programs i should install like a way to eject usbs. I am mostly used to windows but i do like using ubuntu ...
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1answer
74 views

Raspberry Pi GPIO pins stuck high after using L239D chip

I am attempting to run a remote control car via the raspberry pi. I setup a L239D chip circuit following this guide. ...
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0answers
38 views

Atrix Lapdock Mounting Solution

I was wondering if I could mount a Raspberry Pi on the back of the Atrix Lapdock if I would be using it connected to the Pi as a laptop. I asked a simmilar question here and was told the Sugru might ...
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2answers
2k views

Is there a 802.11ac dongle for the raspberry pi or pi 2?

I understand the USB2 bus will limit the speed gain from the 802.11ac network interface. I still would rather buy a 802.11ac usb dongle as its primary use will not be with the raspberry pi. Is there ...
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1answer
71 views

Looking for Optically isolated input board for Raspberry Pi

I am looking for a board with that is able to take a ~12v signal and and send 3.3v to the Raspberry Pi. I have drawn up a quick schematic of what the ideal board would be like (with screw terminals ...
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3answers
410 views

Do the GPIO registers have the same addresses on the new Raspberry Pi 2?

So I just found out that the Raspberry Pi 2 came out, and I'm wondering whether stuff like this would work on it without any modifications (except for recompiling it for ARMv7 of course). This piece ...
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1answer
144 views

Integrated Pi Laptop with the Atrix Lapdock

I always wanted to make a Raspberry Pi laptop and when I saw the various videos and tutorials on how to use the Atrix Lapdock to make one I was impressed. The one problem that I had was that when ...