hi this is my firest thread

my instructor ask me to do ultrasonic water level sensor to measure the level of the water in a well so and display the distance in led attached to it i do not know where i can start he tell me to find a Schematic diagram so any expert pepole in this

Ω plz help Ω

 

http://basicrobot.blogspot.com/2009_03_01_archive.html

Lots of different ultrasonic circuits here. Browse and read awhile.

 

thank sir

i will get back to u