Making a servo tester using an Attiny85 micro chip, Attiny45 also works for this project. This diy servo tester is as good as ...

I had this idea of building my own bicycle lighting system totally personalized, the lights would have the exact lighting pattern I wanted and the shape I decide. That's why I started to build this ...

The key to identifying the location of an ESD source is by measuring the time of arrival between the two antennas.