Mosaic
Well-Known Member
Hi all:
I am designing a counter to track the total number of people in a room with one 3' wide by 7' hi entry. I am considering a pair of these receivers https://www.newark.com/vishay-semic...eiver-45m-through-hole/dp/02P9885?ost=02p9885
driven by a single IR transmitter.
https://www.newark.com/vishay-semiconductor/tsal6100/ir-emitter-940nm-t-1-3-4-through/dp/33C1732
I hope to drive the transmitter with a 39.2 Khz PWM signal (8Mhz clock) with a 16F886 PIC. Use an interrupt to PCM modulate it and analyze the received signals (same 16F886) to determine the direction of person movement through the door.
I'd like some advice on transmitter/ receiver placemant and signal interpretation to minimize errors.
thx
I am designing a counter to track the total number of people in a room with one 3' wide by 7' hi entry. I am considering a pair of these receivers https://www.newark.com/vishay-semic...eiver-45m-through-hole/dp/02P9885?ost=02p9885
driven by a single IR transmitter.
https://www.newark.com/vishay-semiconductor/tsal6100/ir-emitter-940nm-t-1-3-4-through/dp/33C1732
I hope to drive the transmitter with a 39.2 Khz PWM signal (8Mhz clock) with a 16F886 PIC. Use an interrupt to PCM modulate it and analyze the received signals (same 16F886) to determine the direction of person movement through the door.
I'd like some advice on transmitter/ receiver placemant and signal interpretation to minimize errors.
thx