I'm using a UART based DYP-A02YY waterproof ultrasonic ranging sensor to check the water level in a rain tank and it's working pretty well (now has been installed for months and still running well).
I'm using a UART based DYP-A02YY waterproof ultrasonic ranging sensor to check the water level in a rain tank and it's working pretty well (now has been installed for months and still running well).