i try to make led high when enter 'on' in serial monitor and low when write 'off' i need to know why this code not operate int ledPin=13; char a[2] = {'o', 'n'}; char b[3] = {'o', 'f', 'f'}; char c[3] ; void setup () { Serial.begin(9600); pinMode(ledPin,OUTPUT); } void loop () { c[3] …

Serial.read more than letter

system May 6, 2013, 5:16pm 3

AWOL:
Don't write to the fourth element of a three element array

sorry i can't understand you :~

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