Keyestudio 4WD Bluetooth Multi-functional Car Manual page 114

}
if(ask_pin_L(2) <= ask_pin_R(3))
{
back();
delay(100);
turnR();
delay(400);
stopp();
delay(50);
Set_servopulse(DuoJiao);
Show_DuoJiao(DuoJiao);
H = Ultrasonic_Ranging(1);
delay(300);
}
if (ask_pin_L(2) < 35 && ask_pin_R(3)< 35)
{
stopp();
delay(50);
back();
delay(50);
}
}
else
{
advance();
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