const int M1Pin1 = 6; const int M1Pin2 = 9; const int M2Pin1 = 10; const int M2Pin2 = 11; void setup() { // put your setup code here, to run once: pinMode(M1Pin1, OUTPUT); pinMode(M1Pin2, OUTPUT); pinMode(M2Pin1, OUTPUT); pinMode(M2Pin2, OUTPUT); } void loop() { // put your main code here, to run repeatedly: analogWrite(M1Pin1, 150); digitalWrite(M1Pin2, LOW); analogWrite(M2Pin1, 150); digitalWrite(M2Pin2, LOW); delay(2000); analogWrite(M1Pin1, 255); digitalWrite(M1Pin2, LOW); analogWrite(M2Pin1, 255); digitalWrite(M2Pin2, LOW); delay(2000); digitalWrite(M1Pin1, LOW); digitalWrite(M2Pin1, LOW); delay(1000); analogWrite(M1Pin2, 150); digitalWrite(M1Pin1, LOW); analogWrite(M2Pin2, 150); digitalWrite(M2Pin1, LOW); delay(2000); analogWrite(M1Pin2, 255); digitalWrite(M1Pin1, LOW); analogWrite(M2Pin2, 255); digitalWrite(M2Pin1, LOW); delay(2000); digitalWrite(M1Pin2, LOW); digitalWrite(M2Pin2, LOW); delay(1000); }