View Full Version : hai

02-13-2008, 01:13 AM
how to avoid ambient light when sensors are to follow an overheadline??

02-13-2008, 01:54 AM
Use 38Khz modulated IR.And a TSOP1738 sensor.It will only respond to modulated IR and not the ambient light.

02-13-2008, 03:58 AM
TSOP cant be used for line following, its good only for obstacle avoidance...

I would suggest USing IR and using a black tubing around the LED and sensor so as to keep the overall arrangement as directed as possible..

you cant totally avoid ambient light but enclosing the overall led sensor arrangement helps usually..

Ohh.. and Dont Multiple Post...