Jennifer Fox has constructed an irrigation controller using a Pi, a relay and a solenoid irrigation valve (amongst other bits and pieces). She’s posted the whole thing up on Instructables as a tutorial and also covered creating a capacitive soil…
Category: Making
Sinclair TV LCD conversion with a Raspberry Pi
Nathan Chantrell has taken an old, non-functioning Sinclair TV and given it new life with a Raspberry Pi. He had to de-solder some of the components on the Pi to make it fit and used custom kernel modules to get the…
Raspberry Pi controlled syringe pump
In both science and medicine, there is a requirement for dispensing drugs and other liquids in controlled measurements, or doses. This requirement is usually satisfied by a syringe pump. The Raspberry Pi Foundation has blogged about a Raspberry Pi-powered pump…
ramanPi – Raspberry Pi controlled spectrometer
flatCat has developed an enormous project that uses a Raspberry Pi to control a spectrometer. Here’s what he says about what the machine does: Raman spectroscopy is something very cool to behold, and imagine.. The idea that shining a light on…
ProtoCam – hands-on with a prototyping board for the Raspberry Pi camera
Introduction Richard Saville, also known as the Average Man, is currently running a Kickstarter campaign to fund the ProtoCam. The ProtoCam is a prototyping board onto which you can attach your Raspberry Pi camera module and then build whatever circuit you want…
3D printer actually controlled by a Raspberry Pi
Several people have claimed to have a 3D printer ‘powered by a Raspberry Pi’. It has always turned out that this meant that there was a Pi in there somewhere, but actually it was being controlled by something else and…
Raspberry Pi integrated with Capistrano and a traffic light
Randy Westergren uses Capistrano to deploy projects across multiple server environments. He wanted some way of visualising the deployment process and decided that the best way to go was to get hold of a full-size traffic light and use a…
Self-balancing 3D-printed Raspberry Pi robot
Paolo Negrini wanted to build himself a self-balancing robot. So, he’s used an Arduino Mega to read all the sensors and then added a Pi as the communications and data-transfer hub. He then printed out the chassis parts on his…
Browser controlled RC truck drone using a Raspberry Pi
vace117 has taken an old remote controlled truck, ripped the innards out, replaced it with a Raspberry Pi and then strapped an Android phone to the top to provide a video feed. (Yes, he could’ve used the Pi camera, but…
Make your doorbell ring your smartphone with the Raspberry Pi
Clive Webster has written a tutorial over on expertreviews.co.uk which uses online service Pushover to send you an alert on your smartphone when your doorbell is pressed. He’s created the doorbell switch with a nice Adafruit button, hooked it up to the Pi…