I have EU1640BCH12T/R waterproof ultrasonic sensors, which I have got from this link. These are standalone raw sensors without breakout board and not a module like HC-SR04. Being a new electronics hobbyist, I want to test these sensors with Arduino for distance sensing. I tried replacing transmitter and receiver of the original HC-SR04 module with my these ultrasonic ones but I am getting very ambiguous outputs from the circuit. Please suggest what circuit do I need to make to test these raw waterproof ultrasonic sensors?
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