Keyestudio 4WD Bluetooth Multi-functional Car Manual page 110

{
digitalWrite(pinRB,HIGH);
digitalWrite(pinRF,HIGH);
digitalWrite(pinLB,HIGH);
digitalWrite(pinLF,HIGH);
Car_state = 5;
show_state();
}
void back() //back up
{
digitalWrite(pinRB,HIGH); //making motor move towards right rear
digitalWrite(pinRF,LOW);
digitalWrite(pinLB,HIGH); //making motor move towards left rear
digitalWrite(pinLF,LOW);
Car_state = 2;
show_state() ;
}
void show_state(void)
{
lcd.setCursor(0, 1);
switch(Car_state)
{
case 1:lcd.print(" Go ");Serial.print(" \r\n GO");
break;
case 2:lcd.print("Back ");Serial.print(" \r\n Back");
break;
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