I am missing some information in the datasheet of the RAK12007 ultrasonic sensor.
In the quick start guide it says about the PD pin: “power done control （=1 power done，=0 power on” but nowhere in the datasheet does it say what this pin does exactly. I thought the power is controlled via WB_IO2 pin.
Another comment in the example code is: “ECHO pin max timeout is 33000us according to it’s datasheet”.
However, I could not find this information anywhere in the datasheet.
Thanks in advance.