I got one of these a few years ago, and it's given very good service: Banggood Hiland transistor tester but it finally needed it's battery changing, and now I can't re-calibrate it. It gets stuck on the "1-3 capacitor >100nF" (or something like that) message. I connect the capacitor between...
It took me a while but I finally got to where these are working for me. I am programming ESP12E's and a sparkfun thing using the Arduino IDE.
My first project is a doorbell system. It uses a PIR in conjunction with the doorbell switch. I will know that the FEDEX driver did not ring the...