void left(){ digitalWrite(IN1,HIGH); digitalWrite(IN2,LOW); digitalWrite(IN3,LOW); digitalWrite(IN4,HIGH); } void back(){ digitalWrite(IN1,HIGH); digitalWrite(IN2,LOW); digitalWrite(IN3,HIGH); digitalWrite(IN4,LOW); } void right(){ digitalWrite(IN1,LOW); digitalWrite(IN2,HIGH); digitalWrite(IN3,HIGH); digitalWrite(IN4,LOW); } void foward(){ digitalWrite(IN1,LOW); digitalWrite(IN2,HIGH); digitalWrite(IN3,LOW); digitalWrite(IN4,HIGH); } void stop(){ digitalWrite(IN1,LOW); digitalWrite(IN2,LOW); digitalWrite(IN3,LOW); digitalWrite(IN4,LOW); }