Digital Output 01

Blink and pulse digital pins for LEDs, relays, indicators, and simple actuators.

Source code and build tools are available in the protected platform workspace.

How it works

Turn a digital output on and off for an LED, relay module, or simple indicator.

1. Connect the LED/resistor or module input to ledPin.
2. Set ledPin as OUTPUT in setup().
3. Use digitalWrite(HIGH) and digitalWrite(LOW) in loop().
4. Change the two delay() values to control blink speed.

Connections