Hey, I have my project on Ultrasonic transducer and receiver circuit. I have already built my transmitter circuit using the 555 timer to give out 40khz.
But with the receiver, I have a two stage active amplifier LM386 which actually amplifies the signal and i also have a comparator and a delay circuit attached to my amplifiers in order to tune the signal.
This is the point where i cannot understand in order to receive the signal is it necessary to have the delay and the comparator circuit connected or just continue with th Flip flop toggle switch.
If anyone can help me out with any ideas please help me as I am stuck at this position.
But with the receiver, I have a two stage active amplifier LM386 which actually amplifies the signal and i also have a comparator and a delay circuit attached to my amplifiers in order to tune the signal.
This is the point where i cannot understand in order to receive the signal is it necessary to have the delay and the comparator circuit connected or just continue with th Flip flop toggle switch.
If anyone can help me out with any ideas please help me as I am stuck at this position.