while loops


while loops will loop continuously, and infinitely, until the expression inside the parenthesis, () becomes false. Something must change the tested variable, or the while loop will never exit. This could be in your code, such as an incremented variable, or an external condition, such as testing a sensor.


   // statement(s)


expression – a (boolean) C statement that evaluates to true or false


var = 0;
while(var < 200){
  // do something repetitive 200 times

See also

While Loop Tutorial in the Arduino Examples

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The text of the 86Duino reference is a modification of the Arduino reference, and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.