When I originally built the air quality monitor for my school I used the Things Network, a public LoRaWAN radio network for low power devices to send data to the internet. This year a new version of the back end came out, called The Things Stack (aka V3). As a result, they are shutting downContinue reading “Upgrading the air quality monitor”
Tag Archives: Electronics
CanSat competition
Over the past seven or so months I have been working in a team of four taking part in the CanSat competition. The goal of the competition is to build a simulation of a satellite within the volume of a soft drinks can. The device is then launched in a small rocket and descends withContinue reading “CanSat competition”
Simulating a 555 timer in JavaScript with p5.js
The 555 timer is the most popular integrated circuit ever produced – in 2003 it was estimated that a billion units are manufactured every year. It is used for many applications involving oscillating, pulse generation and timing. Recently I was set the challenge of simulating a 555 timer circuit using JavaScript. this is what IContinue reading “Simulating a 555 timer in JavaScript with p5.js”
Repairing a HP 54502A oscilloscope
My Physics teacher recently acquired some old electronics equipment from a company that was throwing them out, and said that I could have some. I ended up with a Hewlett-Packard digitising oscilloscope from the early 90s. The display turned out to be broken, but before taking it apart I wondered whether I could fix itContinue reading “Repairing a HP 54502A oscilloscope”
Brychan Thomas' projects 