12-17-2023, 01:22 AM
becasue the BLACK switch LED ON when voltage = 0v or GND.
so you can test swtich panel firstly, not need HAv2 (remove HAv2), just short any pin D1-D6 with GND, check whether BUTTON's LED ON?
so you can test swtich panel firstly, not need HAv2 (remove HAv2), just short any pin D1-D6 with GND, check whether BUTTON's LED ON?