Electronics Category
Simple Solenoid Driver
Posted on April 27, 2016 1 Comment
A simple and efficient way to drive a solenoid using a micro-controller like an Arduino.
Intended for use in a DIY aquarium CO2 system.
Adding a SIM card to the Photon Q 4G LTE
Posted on December 2, 2013 21 Comments
Context: Let’s face it, people want candy bars. The European and North American smartphone markets are all about thin, lightweight glossy monoliths to fawn over and gently caress in a way that would sicken Charles Babbage. “But Charlie! I yearn for the days of old, when men were men and keyboards were king. Touch screens […]
7400 Logic Combination Lock
Posted on April 18, 2013 15 Comments
Reading Hackaday the other day I came across this article about a combination lock built from logic gates only. This reminded me of a similar circuit I designed and built at school for my electronics AS-Level and spurred me enough to dig it out and share it here 🙂 The Circuit: Inputs: A bank of […]
Charles Wilkinson 