Electronics Projects

by Alejandro Velazquez

An analog soldering station with a controller based on an lm324 op-amp. You can find the KiCad files on GitHub.

soldering station


I have been using a cheap, variable power soldering iron for my electronics projects. I bought it when I didn't know if I would continue with the electronics hobby, an...

A binary watch made with an ATTINY13, a DS1302, and programmed using Arduino. Source code is on GitHub.

It's based on the RandomWatch schematics made by the people at RANDOM DATA.

watch photo

Pressing the button shows the time for some seconds (minutes on the left and hours on the right), then it s...