/* This program calculate Fibonachi number serie: 1,1,2,3,5,8,13,21,34... each number is the sum of the previous two numbers: 8=5+3, 5=3+2... Gabby Shimoni, December 2018 */ long firstNum = 1; long secondNum = 1; long sum; void setup() { Serial.begin(9600); sum = firstNum + secondNum; Serial.println(firstNum); Serial.println(secondNum); Serial.println(sum); } void loop() { firstNum = secondNum; secondNum = sum; sum = firstNum + secondNum; Serial.println(sum); delay(200); }