Arduino code to read lines from serial input

Here is short and useful example to read lines from serial port in Arduino.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

void setup (){ Serial.begin(9600); Serial.flush(); digitalWrite (13, HIGH); //turn on debugging LED } void loop (){ int i=0; char commandbuffer[100]; if(Serial.available()){ delay(100); while( Serial.available() && i< 99) { commandbuffer[i++] = Serial.read(); } commandbuffer[i++]='\0'; } if(i>0) Serial.println((char*)commandbuffer); }