Microcontroller › 8051 › MICRO CONTROLLER BASED ULTRASONIC DISTANCE MEASUREMENT SYSTEM › Hi, If you want to add buzzer
March 27, 2014 at 3:39 am
#11394
SHAH DISHANT H.
Participant
Hi,
If you want to add buzzer without controller then also you can do that.
Output of ULTRASONIC SENSOR will be analog. Give that output to OP-AMP configured as comparator. Use variable pot output as reference voltage. By changing that value you can set the distance at which you would like to give buzzer signal.