I am trying to get a PIC 16F84A to function as an ultrasonic distance
measuring system. I am using Murata 40 KHz Tx and Rx.  The PIC works great
and gives me the Tx signal plus receiver range gating and time of flight
measurement but I am having great difficulty getting any receiver
sensitivity.

Has anyone a circuit for a receiver they can share please?

cheers
Brian

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