This video covers the essential steps to properly test a car's alternator and diagnose common alternator issues. The guide ...

If it doesn’t light up, the battery is dead, or the diode is backwards. It’s a great project, especially since these SMD test clip tweezer things can be had from the usual online retailers for ...

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