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

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Using other camera modules to build custom webcams

I have three old iPhones (iPhone 3GS, iPhone 3G and an iPhone 4) that I recovered from family members that were going to throw away. I had the 3GS so out of curiosity I disassembled it and recovered a ...
2
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1answer
178 views

Does the Raspberry Pi need a cooling system?

Searching on Newegg for "raspberry pi", the results included many heatsinks and as well as a few other types of cooling systems, yet these items do not seem to appear when looking through the stores ...
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1answer
66 views

How do I choose an SD card for the Raspberry Pi?

When looking to purchase an SD card for a Raspberry Pi, what sort of considerations need to be taken into account? Are there certain cards that won't work with the system, or should all standard SD ...
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2answers
77 views

Reducing 24V to 5V for RPi PSU

I'm trying to power several devices off of a breadboard. For simplicity I want to power these all from the same PSU. The highest voltage amongst the devices is 24V. I was looking to use a 24V 2A ...
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1answer
55 views

Quadrocopter Motor Movement

A friend and I are trying to build a raspberry pi-powered quadrocopter. We've ordered four ESCs, four motors, and the Pi, but we're having trouble getting a motor to actually move. The motor makes a ...
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1answer
27 views

raspberry Pi and robots in one toolkit

Is there a toolkit that has a simple robot augmented with Raspberry Pi? The robot should have sensors that estimate robot's pose. I'm looking for simple robots. I've done some simulations in OpenGL ...
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2answers
109 views

Kit for beginners

I discovered the raspberry pi recently from an article and I have read quite a lot about it even went through some tutorials. I want to order a raspberry pi board. I would like to enquire about other ...
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1answer
19 views

Raspbian/OctoPi File Recover

I dropped my Pi on the SD Card slot. It broke and now I want to recover my files off of my SD Card, but I only see a boot partition with no relevant files inside. I was using OctoPi (3D Printing ...
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1answer
44 views

Banana Pi memory bus clock speed [closed]

I hope this is not too off-topic but I think you are the people that may most likely got their hand on a Banana Pi board and can answer my question. What is the memory clock speed of the DDR3 RAM ...
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2answers
133 views

RF24 communication with Arduino

I have been trying for ages to work this problem out and can't figure it out. I have two nrf24 transceivers, one connected to the raspberry pi and the other connected to an Arduino. My code for the ...
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2answers
125 views

Is piglow compatible with model B+

So, can I use PiGlow with Raspberry Pi B+ And, if yes, does it fit inside a pibow enclosure.
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15 views

What exactly is a DataFlash Board (AT34DBXX) and what use is just 4MB?

Along with my DVK511 board (which I am loving), one of the boards that came with it is a SPI interfaced AT45DBXX DataFlash Board (DataFlash Board ) it came with some sample source code, and via ...
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2answers
455 views

What hardware do I need to turn Raspberry Pi into a TV remote controller?

I would like to control my TV using a Raspberry Pi. I would like my Raspberry Pi to act like a TV remote controller. What kind of hardware do I need to make it? Do I need something like IR emitter, ...
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2answers
3k views

What's the difference between the Model B and B+?

I have a Model B Raspberry Pi, but what are the differences between this and the new Model B+? Also apart from the physical differences, what could I do with a B+ that I can't do with my Model B?
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46 views

'Safe' temperatures for use

So I need to measure the temperature in my conservatory, and with all the doors shut on a summer's day it gets pretty toasty (uncomfortable for more than a few seconds). My question is what sort of ...
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1answer
25 views

Touchpad the works well with Raspbian

I'm looking for a USB track/touch/mouse-pad that is compatible and known to work well with with the Raspberry Pi running latest Raspbian image. Just the pad, no keyboard attached. Any ...
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1answer
45 views

Can I use TI Launchpad's JTAG debugger to debug Raspberry Pi over JTAG?

This tutorial describes settting up Rapsberry Pi for debugging over ARM JTAG. TI LaunchPad board also contains some JTAG things to program MSP430. It has only two wires, unlike eight in the ...
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1answer
101 views

Using the Raspberry Pi with a Touchscreen Monitor

I want to buy a big touchscreen monitor for my Raspberry Pi. I'm using Debian Wheezy. I did some research and found the Iiyama T2236MSC-B1. But i dont know if it will work with my Raspberry Pi. I ...
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1answer
79 views

Connect an LCD with Ribbon Cable to Breadboard

I've purchased these two display modules, however, I am lacking the right connectors so that I can connect to my breadboard and to Pi. I would like to know what hardware I should purchase for this ...
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0answers
156 views

Raspberry Pi SIM card, tethering and internet possibilities on the run

An idea just came to me, which I am not sure if any of you has done it. And if so, hopefully someone could share with me how I could achieve this. I was wondering if I could set up a Raspberry Pi ...
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67 views

Stepper motor troubles

I've been trying to setup my stepper motor with my RPI according to this guide: http://www.raspberrypi-spy.co.uk/2012/07/stepper-motor-control-in-python/ However, nothing seems to be happening, have ...
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1answer
90 views

What is the life expectancy or which component is expected to fail first? [closed]

This is a theoretical question regarding quality of modern hardware. I got a RPi but I'm not really worried about it breaking but the concept of having all components of a PC on a single board made me ...
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2answers
61 views

The 'ACT' LED is not blinking and the CPU is overheating.

So i was working on a project in which I had to use an ADC. I used WiringPi's Python modules to do so. For testing the ADC, I attached a 100k pot to its input pin, supplied it about 20V but used the ...
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156 views

Wiring up a ILI9341 TFT Screen + Touch

I've bought a ILI9341 TFT LCD Screen + Touch to my Raspberry pi. The screen is the MI0283QT-9A "TFT PROTO", from Mikroeletronika. Here is the link to the producer's page. It has an ILI9341 chipset, ...
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2answers
82 views

Suddenly got an I/O error from my external HDD

I have used my Raspberry Pi as a torrent-server for quite a while now. My Western Digital "My Passport-Ultra" external HDD and Transmission running on RPi has worked flawlessly for more than a year. ...
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25 views

AC quantity from analog sensor

My project includes giving analog inputs to Rpi through ADC. The dc value will be simply the average of the samples but how can I calculate the ac quantity by using those sample values?? Sensor is ...
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61 views

Temperature Effects

I understand the min temperature specification for a Pi is 0°C, but could I run it outside over a British winter, which has reached 15°C below, without damaging it? Would this temperature cause ...
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1answer
100 views

Controlling Buzzer Module - No sound

The wiring seemed pretty trivial as did the required code. I have the following buzzer module: ...
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2answers
196 views

Raspberry Pi and Arduino communicate over RF?

I would like to have (10+) Arduinos read from their own temperature sensors - fine, I've done that. Now, I would like to have the Arduinos (transmitter) send the temperature sensor data over RF to a ...
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82 views

Setting up wifi with wpa_supplicant error

I purchased a TP-LINK TL-WN725N usb adaptor to connect to wifi, as I don't have an ethernet cable long enough to reach my router (on a different floor). I've installed the drivers for my kernel ...
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51 views

RPi no link light no networking

Just received my Raspberry Pi and the network isn't working, it's as if the network port is completely dead. I have checked the X1 chip as others have suggested elsewhere but that hasn't made a ...
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99 views

My Pi getting heated for no reason. How do I debug?

I wrote the Wheezy image, booted with rPi, expanded size, rebooted. Then I played couple of games, Python Games. Then I opened the default browser, however it was slow. I only opened two pages, one ...
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1answer
104 views

Raspberry Pi expansion board for measuring and data logging wishlist [closed]

Im working on new version of my Raspberry Pi expansion board. My previous board (actually it was a prototype) was designed to measure and log voltage, current, power and light intensity for whole ...
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3answers
215 views

Detect if iphone/Android nearby?

I'm working remotely and it would be handy to know when someone has gone out for a meeting / lunch in my office. I thought I might be able to passively detect what phones near the raspberry pi (and ...
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2answers
161 views

Logic converter for relay module or extra resistors and transistors?

I would like to use a 8 channel relay of SainSmart for house automation: http://www.sainsmart.com/8-channel-dc-5v-relay-module-for-arduino-pic-arm-dsp-avr-msp430-ttl-logic.html This Relay module ...
2
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1answer
55 views

Heat buildup in Rasperry pi Cases

I'm looking to build a nice wood case for my Pi. However, I've noticed that the processor already generates a good deal of heat. Would putting my Pi in a case cause noticeably higher temperatures? ...
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2answers
319 views

Baremetal Forth for Raspberry Pi?

I was strongly considering writing a Forth implementation designed to run bare-metal on a Raspberry Pi, ie, booting directly into Forth with no OS. I thought this might be of interest to the ...
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1answer
144 views

AC 220v motor speed controller for raspberry

I would like to control an AC 220V Motor via raspberry. All I could find until now, is about stepper, and 12/24V Motor ... Any Idea where I could find a simple Hardware to use in combination with ...
2
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1answer
139 views

Looking for Raspberry Pi pinout image map showing all components

I'm looking for a link to a picture of a Raspberry Pi that has HTML pop-ups (mouseover and it tells you exactly what everything was depending on what you mouse was over). I can't remember what ...
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1answer
76 views

Transition to Embedded Linux like Pi from Microcontrollers [closed]

I am currently familiar with design/programming custom embedded systems using PIC Micro-controllers with various peripherals like I2C, SPI Flash, UART,ADC,etc with some additional analog processing ...
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1answer
86 views

Raspberry Pi Model B keeps crashing after booted into Arch

After some weeks I tried to start my RPI again to setup a local NAS. I knew there was Arch on the SD card so I just tried to start it. I connected it to a HDMI screen and it seemed to boot correctly. ...
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4answers
2k views

Can I use the Raspberry Pi as a Mini-PC?

I have never used a Raspberry Pi before, but for some time I am thinking about buying one in order to create some mini personal computer out of it. I would use it for playing movies(preferably output ...
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1answer
237 views

Why does the Raspberry Pi's GPU control the first stages of the boot process?

According to the answers to this question and other sources, the GPU of the Raspberry Pi's BCM2835 SoC is responsible for the first stages of the boot process, including enabling the ARM CPU. Until ...
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1answer
134 views

Use Arduino library on raspberry

I am not sure whether this is a stupid question or not, but you may be able to help. I bought a sensor board and the manufacturer provides an Arduino-library to use the sensor. Is there a way for me ...
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3answers
865 views

use ssd as main drive

I would like to know, if it is possible to use a SSD as the only drive for a Raspberry PI. The reason is, I would like to use it as database- and webserver and I am not sure about the lifetime of ...
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2answers
198 views

Power the Raspberry Pi via the 5v Pin

I tried to power my Raspberry Pi via the GPIO header, but it didn't work. I powered it with exactly 5v, but it won't boot, but the Status LED "ACT" is on. It's darker then normal, but it's on. I think ...
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50 views

RPI with Samsung UE22F5400 not working

I hope one of you can help me. Does anyone have the RPI working with the 22" smart tv of Samsung UE22F5400? Cant get it to work. I use it with openelec/xbmc, but i get nothing. The hdmi port is not ...
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2answers
61 views

Transistor or optoisolator when dealing with the GPIO pins and an external power source?

I am using the pi as a switch to short the pins on my motherboard to turn on my computer. I see many people use an optoisolator to do this to protect the board. What purpose does the isolator serve as ...
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72 views

Which GSM modules can be used with a raspberry pi?

What opportunities exists to connect a GSM module to a Raspberry PI? Which GSM modules are supported or can configured with little effort? What software was used to dial and connect to a GSM Network?
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2answers
91 views

I2C with zener protection isn't working

I wanted to put some protection on my PI's pins and chose the zener voltage protection one, as described here. I used TZX3V3A zener diodes and 330 ohms resistors. Like this : Then i tried to ...