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  • joshuaron commented on Eagle199393's instructable Arduino HC-SR04 Ultrasonic Rover7 months ago
    Arduino HC-SR04 Ultrasonic Rover

    Hi, The Ultrasonic sensor doesn't work for me when I connect it to pins A4,A5 in the MotorShield board. Can anyone explain me how does it make sense to use them, if they are "Analog In" pins, wheras the UltraSonic sensor requires "Digital In" & "Digital Out" pins ?!

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