This year I managed to prepare for Halloween before Halloween. Yeah.
I plan to scare the trick or treating kids with a little circuit I came up with.
I used the chance to learn somethign about transistors: I used one as a class A amplifiers and another as a switch of LEDs. I also managed to play wave files on an ESP32.
Covid makes us still stay at home. Meanwhile we are allowed to leave home, but where shall we go? As the number of possible opportunities is limited, I had an idea of a nice little project with my kids: A soap bubble machine!
We took some parts of the Arduino starter kit and some Lego bricks and a few hours later it was finished.