Hi guys.
1 component of my design project needs a people counter. The device will count people walking in and out of the door. I need to use 2 parallel IR beams(IR LED and phototransistor). The led and transistor will be 0.8 m away. How do I modulate the LED with a 555 and setup the phototransistor to pick up the led at this distance?
I need either a high or a low when the beam is broken.
NB: I cant use micro controllers. I have a 5V ,1A power supply
Thanks
1 component of my design project needs a people counter. The device will count people walking in and out of the door. I need to use 2 parallel IR beams(IR LED and phototransistor). The led and transistor will be 0.8 m away. How do I modulate the LED with a 555 and setup the phototransistor to pick up the led at this distance?
I need either a high or a low when the beam is broken.
NB: I cant use micro controllers. I have a 5V ,1A power supply
Thanks