Arduino Useful Functions

delay(1000);

newValue = map(oldValue, oldRangeStart, oldRangeEnd, newRangeStart, newRangeEnd);

newValue = map(oldValue, -100, 100, 1000, 2000);

newValue = constrain(oldValue, rangeStart, rangeEnd);

newValue = constrain(oldValue, -100, 100);