How an Arduino Program Works 

You need to know the meaning of the following things

How an Arduino Program Works.

  • The Arduino community calls a program a sketch.
  • It has two main functions: setup and loop. 

void setup(){ 
runs once, when the Arduino is powered on.



void loop(){ 
} 
 runs continuously after the setup() has completed. 
– here we check for voltage level on the inputs, and turn on/off the outputs.

By luala

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