This is just the start of my project.
Ultra sonic distance sensor, based on paralax ping sensor or other ultra sonic distance sensors .
24Khz and 40Khz ultra sonic transducer.
Basic operation:
Send Pulse--> wait for echo --> read time between pulse and echo --> send distance --> start over.
completed part of projct at the time of posting.
Output amplifier--completed
PWM output (24Khz) --completed
Parts that need to be completed
Input amplifier/opamp -- waiting for jfet opamp, considering a 741 just for testing purposes
pulse length code -- was workin