There is a 40kHz timer fed into an inverter to give increased square wave amplitude before entering the UST.
The Signal is detected by the USR and then amplified by 1000 rectified then using a diode pump to give a varying voltage which the comparator detects and outputs a high or low signal...
the circit that im designing is for a reversing aid.
the reversing aid uses the tried and tested ultrasonic approach.
i have a circuit whereby the final output is either high or low from a comparator depending when a ultrasonic reflection has been detected.
i need something added to this circuit...
