hi i have got IR led transmitter and IR led receiver. I got to make it use for person counter. The catch is I should not use 555 timer for modulation. I tried the following circuit but its not working for me. http://www.ikalogic.com/ir_prox_sensors.php Can anyone give me a simple design? thank yo…

basic question

Topic		Replies	Views
Rapid switching capabilities of Arduino? 3rd Party Boards	7	3361	May 6, 2021
Using Infrared-Sensor - help! Sensors	4	1859	May 6, 2021
IR module detection Programming	10	2905	May 5, 2021
arduino and sensor needed/ will pay Frequently-Asked Questions	10	2532	May 6, 2021
IR Beams Development	6	1978	May 6, 2021