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1500 questions
13
votes
5 answers

Install Node.js on an SD card to work on all Pi models

I download the last raspbian version (2016-05-27) on https://www.raspberrypi.org/downloads/raspbian/ Node.js is already installed with the 0.10.29 version, so I removed that and reinstalled it with apt-get remove nodered apt-get remove nodejs…
4Taine
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13
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3 answers

Disable auto file system expansion in new Jessie image 2016-05-10

Now when you flash the new Jessie image (released 2016-05-10) on the SD card and boot the first time, it auto expands the file system on the whole SD card. I want to stop that script. Reason i want this is because when backing-up the image from the…
user3601278
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13
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4 answers

Window IoT Core stuck while booting on Raspberry Pi 3

When I try to boot my Raspberry Pi 3 with Windows IoT Core it remains on this screen forever: I've tried 2 different builds now, 14322 and 14328. Also I tried via noobs and via the IoT dashboard from Microsoft. The device is connected to the…
RuteNL
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13
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4 answers

How do I detect the type of camera installed?

I need to know how to remotely detect whether an 8mp or a 5mp camera module is connected to the rpi for implementation in an embedded project. Any help?
Boris Spektor
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13
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2 answers

Setting up a Ruby on Rails Server

I am thinking of buying a raspberry pi, because I want to host a personal website. I am using a UK Internet provider (Virgin Media), and I want to use my internet connection to allow access to my website! I have found quite a few resources for…
user5536
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13
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6 answers

Streaming H264 with Logitech C920

I have a logitech C920 webcam. It has the ability to directly encode the video in H264. I want to reproduce what was done with a Beaglebone, but using a Raspberry Pi: send a H264 stream to the network. The Raspberry Pi is then only here to packetize…
Vincent Hiribarren
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13
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2 answers

DNS resolution failure

Trying to connect my new Raspi to the internet for the first time via a cross-over to a bridged connection with my laptop's wi-fi. The Raspi browser works for internal network webservers but won't receive anything from the WAN using either URL or…
Chef Flambe
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13
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6 answers

How to connect and use ssh without a screen using BUILDROOT

I want to build a minimal system for raspberry pi (B+) to improve the performance of my face detection algorithm ... I have found BuildRoot : for the configuration i found that it's not necessary to do the configuration myself and instead i have…
The Beast
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13
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4 answers

max length of wire w/ 3.3v or other issue

I have a raspberry pi connected to a DS18B20 temperature sensor shown in the diagram below. The one-wire software is installed and I am able to successfully read the temperature from the devices folder/file in /sys/bus/w1/devices. The problem I am…
BryanK
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13
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2 answers

Disable LEDs Pi Zero

Can I disable the yellow (PWR?) LED on the Pi Zero? I've tried setting the brightness to 0 of led1 (it starts life as 255) and led0 is already 0 but I still get the LED glow. Out of interest, I only managed to set the brightness file to zero by…
Toby
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13
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2 answers

Pi Zero Video out header

I'm still waiting to sort getting a Pi Zero, but a thought has just occured to me. The Pi Zero has 4 pins which are AFAIK something to do with video: So I have two questions: What is the pinout for this? Does it include an audio output? The…
Wilf
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13
votes
2 answers

pigpio Can't lock /var/run/pigpio.pid

Trying to run the pigpio example program freq_count_1 I get the error Can't lock /var/run/pigpio.pid. The gpiotest program, however, runs as expected. Below you can see what I did. I have a Raspberry Pi 2 running Jessie. gcc -Wall -pthread -o…
user37342
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13
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2 answers

What could cause a failure to display anything on the HDMI output?

Occasionally, when I power up my friendly RPi, the screen stays blank as if there is no output from the HDMI. I can still ssh to the device, so it is working. Can anyone suggest reasons why it may be happening and how to fix it?
Jivings
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13
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2 answers

Properly wiring a solid-state relay to the GPIO pins?

tl;dr — I'd like to connect this relay to the GPIO pins on my Raspberry Pi B+. I'm looking into purchasing a solid-state relay for my Raspberry Pi. After a great deal of searching, I came across this 8-channel relay from Sainsmart: However, I'm…
Nathan Osman
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13
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1 answer

Alternative to polyfuse mod

I have one usb device that will not work because of the limited usb current. I don't want to add a powered usb hub (saving cost and space) and I don't want to solder on my pi (polyfuse mode). Can I just "bridge" the 5V to the USB device? Update:
tauran
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