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How to make a servo tester using Attiny85 micro chip

Making a servo tester using an Attiny85 micro chip, Attiny45 also works for this project. This diy servo tester is as good as ...
XDA Developers on MSN6d

I built this beautiful LED matrix display with an ESP32 for $30

You can build something cheaper and more customizable with an ESP32 or a Raspberry Pi, and that's what I did. It's beautiful, ...