#include <SoftwareSerial.h> SoftwareSerial BT(0, 1); //TX, RX respetively String readvoice; void setup() { BT.begin(9600); Serial.begin(9600); pinMode(4, OUTPUT); pinMode(3, OUTPUT); pinMode(5, OUTPUT); pinMode(6, OUTPUT); } //-----------------------------------------------------------------------// void loop() { while (BT.available()){ //Check if there is an available byte to read delay(10); //Delay added to make thing stable char c = BT.read(); //Conduct a serial read readvoice += c; //build the string- "forward", "reverse", "left" and "right" } if (readvoice.length() > 0) { Serial.println(readvoice); if(readvoice == "*forward#") { digitalWrite(3, HIGH); digitalWrite (4, HIGH); digitalWrite(5,LOW); digitalWrite(6,LOW); delay(100); } else if(readvoice == "*back#") { digitalWrite(3, LOW); digitalWrite(4, LOW); digitalWrite(5, HIGH); digitalWri