Arduino boards and their ilk are perfect for ... you’ll notice blocks of code under “void setup()” and “void loop().” The “void setup()” section only runs one time, at setup, when ...

Below is the prefatory code of the Arduino Uno/Nano Blow Switch. void setup() { //Serial.begin(9600); // Start Serial for Debugging @9600 Baud pinMode(LED_BUILTIN, OUTPUT); // D13 as Drive Output } ...