Microcontroller › 8051 › MICRO CONTROLLER BASED ULTRASONIC DISTANCE MEASUREMENT SYSTEM › Hi, If you want to add buzzer
March 27, 2014 at 3:39 am
#11394
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.