I guess this is another question for the great DJ
I very common TSOP4840 IR receiver and output is PWM and need read the value
and there is 4 of them i am using.
so looking at the ECHO PIN can it work and any script for it

Also the trigger pin on sonar i want to pulse the IR transmitter using PWM control in the interface you have for it
I know others looking at the same idea for low cost home base docking