I've correctly wired up an Arduino Nano 33 BLE to a 4-channel AC dimmer from RobotDyn and noticed that the output signal produced by calling digitalWrite(D6, HIGH) is oscillating which results in the ...
It appears that all calls to digitalWrite() fail after calling analogWrite() on that same pin. When I replace the Feather M0 bootloader with Arduino Zero bootloader, the issue doesn't occur. I've ...