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 ...

Now that you've explored and experimented with Digital Output, it's time to jump into it's complimentary concept: Digital Input. Before starting, let's do a quick refresher about the basics of Digital ...