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

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22 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 ...
0
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1answer
22 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 ...
0
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0answers
56 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 ...
1
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1answer
36 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
18 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 ...
2
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1answer
66 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 ...
2
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1answer
43 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. ...
0
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1answer
378 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 ...
1
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1answer
39 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 ...
3
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2answers
91 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 ...
0
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1answer
101 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 ...
4
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2answers
118 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 ...
0
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1answer
27 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?
0
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0answers
56 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 ...
0
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1answer
60 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
45 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
32 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 ...
2
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1answer
539 views

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

I am looking for a 802.11 ac dongle for the raspberry pi 2 actually. Is there such usb a dongle on the market with drivers for the pi? Edit: To be clear I understand the USB2 bus will limit the ...
1
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1answer
49 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 ...
4
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3answers
266 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 ...
0
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1answer
100 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 ...
0
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1answer
49 views

Which one to choose for project work?

Hi I'm a final year college student (Engineering) and I'm trying to build a hexapod (spider like robot) for my final year project. The bot should be able to Livestream (Video and Audio). So my friends ...
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0answers
101 views

Can Compute Modules clustering and availability?

I am very interested in Compute Modules, but have a few concerns: The main press release (linked above) for Compute Modules states that these systems are "primarily designed for those who are going ...
1
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1answer
96 views

Where can I buy Compute Units?

I see a lot of media hype surrounding Raspberry Pi Compute Units circa April 2014, but to my surprise, I can find no websites (even Ada Fruit) that actually sell them. Additionally, because I can't ...
2
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1answer
83 views

Touchscreen Pi GPIO Connection

I'm working on David Hunt's Touchscreen Pi Timelapse Controller (https://learn.adafruit.com/touchscreen-pi-timelapse-controller/overview) and have encountered some difficulty in the the hardware ...
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0answers
42 views

Hardware for Hyperion

I'm planning to build an ambient lamp, and I like the features that the hyperion has. First, I was going to get these LED's: (WS2801) Addressable Color 12mm Diffused Digital RGB LED Pixels Lights ...
1
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1answer
73 views

How to keep my Hard Drive safe (physically) [closed]

Strictly speaking, this is a Banana Pi question. However, one might want to do something similar with a Raspberry Pi, so I consider it appropriate to ask here. Hope I'm right. Now the Banana Pi has ...
0
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1answer
93 views

Gameport to USB?

I have a Microsoft SideWinder Game Pad (Part Number: 90873) that I want to use with my Raspberry Pi RetroPie. I have the pinout and want to replace the GamePort end with USB. I followed the ...
1
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1answer
59 views

My raspberry pi only have the green led on (model B+)

Yesterday I connected my RPi to the TV, but there was a problem. The red LED doesn't blink, but the green LED is on. I've change the microSD but It didn't help. I use a 700 mA power supply, and tried ...
1
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1answer
110 views

The pi as a mobile, off-grid outdoor device

How can current Raspberry Pi power and display technology be used to create a practical, outdoor computer for light weight text editing or programming off-the-grid and in strong ambient light ...
1
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1answer
97 views

Can I swap OS SD cards among Raspberry Pi?

I've got several raspberry pi computers. They are the same hardware revisions. If I swap the SD cards amongst them, will the OSes bootup successfully with their respective OS's and software or will ...
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3answers
89 views

Can't find the right SD card slot

I just got a Raspberry Pi B+ with a NOOBS SD card, but I can't find the SD card slot. I found the micro SD slot on the bottom of the Pi, but my SD card won't fit. Where do I connect it?
0
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1answer
89 views

Raspberry PI digital signage solution

This is probably not the first digital signage discussion but I think my requirements are a bit different. I'm looking to set up a Raspberry Pi to connect to a network via Wifi and a TV via HDMI, on ...
2
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0answers
430 views

Raspbian /sys/bus/w1/devices/ is empty when having multiple 1-wire DS18B20 temperature sensors

I have a RasPi model B rev. 2.0 and two DS18B20 1-wire temperature sensors and they are working individually fine. I know I should be able to connect multiple 1-wire sensors in parallel but I can't ...
0
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1answer
50 views

Building a two DC motor robot cart with rpi

I want to build a Robot which runs on Two DC motors have cart like structure , I want to control it using PWM. what is best way to do it directly from rpi without using Arduino or kits or modules but ...
2
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2answers
150 views

How much current does the Raspberry Pi can handle?

I got a Raspberry Pi Model B+ for the first time and I have been searching in my house phone chargers that I can use. In the manual in the package it stated that the maximum current is 1500-2000mA and ...
2
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3answers
113 views

Default duty cycle of hardware PWM using wiring-pi

I spent quite some time, but I wasn't able to find the answer (and found other interesting sources like changing pwm frequency 1 and changing the frequency 2), and I lack the equipment to find out by ...
0
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1answer
38 views

How many GND does a RasPi model B rev.2 P1 header have?

I see a lot of conflicting documentation on how many GND pins are available on model B rev. 2.0. I have hardware revision "000e" and there are a lot of DNC (Do Not Connect) pins. ...
2
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2answers
118 views

Proper hardware debouncing my interrupt driven digital electrical meter input?

This is a child of my first problem, I am getting ghosting/bouncing on my digital input, but this question is more hardware related and specific to my problem. I have a RasPi model B. I have read ...
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2answers
96 views

raspberry pi os programming

My goal is to learn more about operating system concepts by poking around some simpler OS's and possibly writing one from scratch. The Raspberry Pi seems attractive as an entry level system to ...
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0answers
24 views

Raspberry Pi in 24/7/365 production [duplicate]

Would you advice to use Raspberry Pi as a server for an advertising display system to manage 150 LCD screens in 24/7/365 mode? Thanks in advance,
2
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2answers
144 views

I am getting ghosting/bouncing on my digital input

I am meassuring data pulses from my electrical meter, giving me one pulse per Watt used. I have 4 electrical meters connected to my Raspberry Pi model B. I have connected them directly like this (no ...
1
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1answer
62 views

Simple solenoid valve control troubleshooting

I should mention that I am trained in biochemistry with a basic college-level physics background, but with no background in DIY electronics. I'm trying to make my Raspberry Pi control a simple valve. ...
2
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4answers
339 views

Can the pi power this 2.5" drive without a usb hub?

I want to use my PI model B as a NAS, but I'd like to avoid using a usb-hub. I have a 2.5" western digital 1tb usb drive (this one), and a 2A power supply for the pi that I'm planning on using with ...
5
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0answers
193 views

Running RPi on Solar Panel and battery [closed]

I’m quite new in electronic projects and so my basics are quite limited. I've been reading a lot regarding this topic (refer to the title) and I’m currently planning to buy the suitable Solar Panel, ...
2
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1answer
85 views

Beginner Question - Reading Temperature, Opening Water Valve, Status LED [closed]

I am completely new to Raspberry Pi and would like to hear your input on this project that I need to solve. My question is: What hardware do I need, how would I connect it and how would I solve the ...
1
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0answers
30 views

Interference with Freeview box

I have a model B raspberry pi running OpenELEC v4.2.1 connected to my TV using the composite output. I also have a Freeview box receiving terrestrial TV from a coaxial cable connected by Scart lead to ...
1
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1answer
78 views

Brushless motors with Raspberry Pi [closed]

I would like to know if brushless dc motor can be directly run with Raspberry Pi without using an ESC. Thanx.
1
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1answer
67 views

Pins I2C cannot be used as input

When using pin 3 and 5 as inputs, I get only 3.3v and I'm not able to use them as inputs. I use the same code and circuit on all the GPIO pins the circuit worked on every single pin except on this 2 ...