Raspberry Pi


DS18B20 Temperature Sensor with Raspberry Pi
The Raspberry Pi does not have any ADC (analogue to digital converter) pins in its GPIO, and so a digital temperature sensor should be used. The sensor of choice around the world is the Dallas DS18B20 1-Wire temperature sensor pictured above. They are relatively cheap, very …

Connect Multiple Temperature Sensors with Raspberry Pi
In our article DS18B20 Temperature Sensor with Raspberry Pi we detailed how the Raspberry Pi can be used to take temperature readings from a ds18b20 temperature sensor via the i2c protocol. Here we will expand that article to explain how multiple temperature sensors can be …

Raspberry Pi Temperature Logger with Xively
In our article DS18B20 Temperature Sensor with Raspberry Pi we showed how a DS18B20 1-Wire Temperature Sensor can be read by a Raspberry Pi and its temperature displayed. When using a temperature sensor you will normally want to read the temperature at regular intervals and …

Solar Powered Raspberry Pi
Since the Raspberry Pi was first released back in 2012 we have had many people enquiring about the practicality of powering a Raspberry Pi with a PV solar panel. In this article we will look at the practicalities of doing so. The first thing to consider …

Simple Raspberry Pi Relay Control over the Internet
Home automation and monitoring is something which many Raspberry Pi owners would like to experiment with. It potentially offers the ability to control devices such as lighting, heating, cameras, etc from anywhere in the world over the internet via a PC, tablet, or smartphone. Unfortunately for …

Downloading Youtube Videos to your Raspberry Pi
Although this is a renewable energy website, the majority of questions we receive about the Raspberry Pi revolve around how to download videos from either YouTube or the BBC iPlayer! Therefore, as the Raspberry Pi does work as a very energy efficient media player, in …

Mount USB Memory Stick On Raspberry Pi
If you are using your Raspberry Pi to play music or video you will soon run out of storage on the SD card which holds the operating system. The easiest way to increase the capacity of the Raspberry Pi to store your media files is …

Setting up Static IP Address on Raspberry Pi
In our article Connecting to Raspberry Pi from PC via SSH we showed how to connect remotely to your Raspberry Pi from another computer on the network - particularly useful if you want to run your Raspberry Pi headless, i.e. without its own monitor, keyboard, …

Connecting to Raspberry Pi from PC via SSH
Although it is possible to connect a keyboard, mouse, and monitor to a Raspberry Pi, it is often more convenient to access the Raspberry Pi via a PC over the local network. We use a Windows PC, and the following shows how we connect it …

Publish Temperature Sensor Readings To Twitter Raspberry Pi
In our article DS18B20 Temperature Sensor with Raspberry Pi we showed how to measure the temperature of something with a DS18B20 digital temperature sensor connected to the GPIO pins of a Raspberry Pi. In this article we will take things one step further, automatically publishing …

Wire 5V Direct to Raspberry Pi
If you are using power over ethernet or using a small 5V regulator to power your Raspberry Pi from a 12V battery - e.g. if you are planning to solar power your Raspberry Pi, then you may not want to go to the trouble of …

Raspberry Pi Experimental Datalogging Setup
For our article Valiant PremiAIR 4 Heat Powered Stove Fan Testing we set up an array of digital temperature sensors for a datalogger using a WiFi connected Raspberry Pi Model A+. In this article we will have a quick look at how we set this …

Raspberry Pi Flashing LED with GPIO and Python
The Raspberry Pi has many GPIO (general purpose input output) pins which can be used to detect (digital) inputs or to control external outputs. The simplest project to get you started using GPIO with Raspberry Pi is to get an LED to flash on and …

Beaglebone Black Credit Card Sized Computer
The Beaglebone Black is a credit card sized, low cost (US$45), low power use Linux computer designed for developers and hobbyists to use with their projects. While sharing many similarities with the Raspberry Pi, the Beaglebone Black is twice as fast and has other advantages over …

How To Rename Your Raspberry Pi
Since we published some introductory articles on the Raspberry Pi we have had some emails from REUK site visitors who saw in the screen grab images we used to illustrate the articles that we had changed the [host] names of our Raspberry Pi's from the …