Language: c

String buf = ""; void setup(){ Serial.begin(9600); while(!Serial){ delay(1);} buf.reserve(200); Serial.println("UNO started"); } int ib = 0; void loop(){ while (Serial.available()){ delay(4); // allow buffer to fill ib = Serial.read(); buf += ((char)ib); if(((char)ib)== ‚\n‘ || buf.length()== 200){ Serial.print("Echo: "); Serial.print(buf); buf = ""; } } }