XLR cable tester concept
The aim the project is to build a functional XLR cable tester. The status is displayed by three RGB leds. The faulty pins are indicated by red leds - if pin is not connected the led is lit up, if two or more pins are shorted, leds for shorted leds are lit up.
The device will support "heisenbug" testing mode, when cable is connected and wiggled testing for cold solder joints or breaks in the cable.
The device will be powered by three AA batteries.