Need to implement an Occupancy counter.
I thought of using tow 1738 IR sensor so that I can detect entry and exit of people to a room. And can increment or decrement a register in arduino. Working: ---IR Led1 : ---------->1st 1738
---IR Led2 : ----------->2nd 1738
So if the 1st led is blocked and then the 2nd, then we can label the motion as say "Entry" and viceversa "Exit"
But the problem I seem to have is 1738 needs to have bursts of 38 Khz signal. Is that correct? For my application wouldn't a continuous 38 khz wave be required?