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

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6
votes
2answers
714 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?
0
votes
1answer
24 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 ...
0
votes
1answer
18 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 ...
0
votes
1answer
25 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 ...
-1
votes
1answer
72 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 ...
0
votes
1answer
55 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 ...
0
votes
0answers
64 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 ...
0
votes
0answers
55 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 ...
1
vote
1answer
84 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 ...
-1
votes
2answers
57 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 ...
0
votes
0answers
86 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, ...
0
votes
2answers
48 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. ...
0
votes
0answers
21 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 ...
1
vote
1answer
58 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 ...
0
votes
1answer
57 views

Controlling Buzzer Module - No sound

The wiring seemed pretty trivial as did the required code. I have the following buzzer module: ...
1
vote
2answers
142 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 ...
0
votes
0answers
74 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 ...
0
votes
0answers
33 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 ...
0
votes
0answers
82 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 ...
0
votes
1answer
80 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 ...
2
votes
3answers
167 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 ...
2
votes
2answers
129 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
votes
1answer
52 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? ...
2
votes
2answers
241 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 ...
1
vote
1answer
105 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
votes
1answer
133 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 ...
1
vote
1answer
75 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 ...
1
vote
1answer
70 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. ...
10
votes
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 ...
4
votes
1answer
211 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 ...
0
votes
1answer
104 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 ...
4
votes
3answers
453 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 ...
2
votes
2answers
172 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 ...
0
votes
0answers
48 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 ...
2
votes
2answers
58 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 ...
1
vote
0answers
62 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?
2
votes
2answers
84 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 ...
3
votes
0answers
230 views

GPIO pins are always HIGH

I recently have started delving into using the GPIO on my raspberry pi and when I got to the input section of adafruit's tutorials I noticed something wrong. For some reason when I execute the python ...
0
votes
0answers
301 views

4G internet with Huawei E220 or K5150

I have got a Huawei E220 modem and I connect it with sakis3g. Recently I switched to a 4G network with 40Mb/s speed. However, with this modem I still get only 2Mb/s, because I think I connect through ...
0
votes
1answer
92 views

Analog to Digital converter

Can I connect a ADC0804LCN to a raspberry pi ? http://pdf1.alldatasheet.com/datasheet-pdf/view/77309/INTERSIL/ADC0804LCN.html
0
votes
0answers
73 views

How to trigger and capture HD video from DSLR

I am looking to do the following and am wondering what approach to use: Trigger a DSLR into taking a 1080p video for a specified duration or start/stop Remove the video file from the DSLR onto the ...
0
votes
0answers
36 views

Can the GPCLKn be used to provide an accurate clock signal for external microcontrollers and logic?

I have a hardware project based on an AVR microcontroller which must be clocked at 13.875 Mhz. The crystal for this is relatively expensive and quite difficult to obtain compared to the other ...
0
votes
0answers
63 views

Difference between LCD Displays

I was using a Hitachi HD44780 display hooked up to GPIO pins. Sadly, it got damaged and, in a rush, I had to get a different one. It is a ADM1602U serial enabled display. However I don't plan to use ...
0
votes
0answers
135 views

Implement Android beam using Raspberry Pi NFC and Android device

I have Raspberry Pi board with a PN532 NFC extension and an Android device. I would like to create android beam technology between the NFC extension and the phone, in order to realize communication ...
0
votes
2answers
93 views

NAS on Rpi vs ASUS RT-n16

I'm waiting on some hardware to arrive but basically I have an ASUS RT-N16 router running DD-WRT and I want to have mysql(for xbmc library), sickbeard, and transmission running on an Rpi as its ...
2
votes
0answers
314 views

How to know if Raspi is bricked

I have a Model B Raspi and - shame on me - overpowered it with about 9V. And to make it worse I powered it using the test points TP1 and TP2, avoiding the polyfuse. ...
3
votes
1answer
374 views

Raspberry Pi + ASIX AX88772: poor performance as a LAN/Broadband gateway?

In a bid to quieten my room, I'm attempting to replace a generic box (2 nics) with an ARM (raspberry pi, the 512mb model) as my Internet gateway/firewall. My research selecting components, lead me to ...
2
votes
1answer
760 views

Raspberry PI as intercom?

I am currently looking for a way to connect an intercom to the raspberry pi, at the moment, the intercom wires are connected to a regular telefphone ( only two wires needed ), when someone dials the ...
1
vote
2answers
102 views

gpxlogger/gpspipe clean file close

What is the best way to log gps data from gpsd. I'm using gpspipe and gpxlogger to write to a file but my issue is that I won't have clean shutdowns with the Rpi in the car. What is the best way to ...
0
votes
1answer
64 views

How to use Slice of Pi kit for prototyping?

I have a Slice of Pi prototype board, but I'm somewhat confused as to how I'm supposed to use it. None of the pads in the prototype area seem to be connected. How am I supposed to wire stuff together ...