Making a servo tester using an Attiny85 micro chip, Attiny45 also works for this project. This diy servo tester is as good as any other servo tester, the difference is that it can be programmed to do ...

This is the most complex or detailed soldering I've done so far, the QFN20 package is very small but still not impossible to solder using conventional tools. In this video I make a functional circuit ...