I hooked up an old Matrix Orbital LK205-24-USB LCD display with my Arduino today. This 80-character backlit display can be plugged into a computer using the handy dandy USB cable (hence the -USB part of the name) but it turns out it has a 5V TTL serial jumper on the back which can provide power […]
Category Archives: arduino
Doorbell update
Quick update to last week’s post about the doorbell project. I’ve now squeezed in into an Altoids tin (surely everybody’s favourite project box), complete with a little hole for the radio antenna. It’s now permanently connected to the Mac Mini in the living room, meaning roo_house on Twitter now makes an update (“There’s somebody at […]
Hacking the doorbell
I bought a new doorbell. It actually came as a set, with two ringers. One is battery operated and the other is mains powered, plugging straight into the wall. I once again find myself attempting to keep up with Nick. Having seen his doorbell project I knew exactly what I had to do: it was […]