Showing all posts tagged funwithelectronics:

DPH-5005 Benchtop Power Supply Project

Up till now I have been using 12V and 5V power supply units on my desk to power various stuff I am tinkering with, from data loggers to sensors and so on. As I didn't like the open power terminal connectors, I 3D-printed an enclosure for them. I also took the opportunity to make multiple output terminals, so I can easily connect multiple devices simultaneously. Each output terminal has its own switch and LED and also a fuse. This is fine and good for working with stuff that works. But I've b...

One Switch, Two Doorbells : DIY Doorbell Extender, a #NoCPU project

My dad approached me with an interesting problem to solve ... the doorbell in their house is hard to hear from the tv room or dining room. Given that 90% of the deliveries made to the house are stuff I've ordered, I had vested interest to solve this. The usual solution to this is to buy one of the wireless doorbells that has 1 switch and multiple bell units -- you just stick the switch to your gate, and place the bell units wherever you like. However there were some good reasons against this...