Review on 🔍 EEEEE UNO R3 Logic Probe & UNO R3: ATMEGA328P ATMEGA16U2 Digital Logic Tester | Arduino IDE Compatible by Shawn Jimenez

Something I doubted it would really be a probe on a feather but it really is. The board is loaded with Blink as usual, and the probe has a corresponding indicator. I think the most common programming mistake people make is assigning the wrong contact number. Now you can test it without having to go back and look through the code. Simply press the contact with the probe and if the red indicator does not flash, you are connected to the wrong contact. Works, simple, cheap, convenient. Good combo.