We connected the AM412 PIR sensor to arduino, but no matter what we do, the voltage state is always High!
We don’t know how to use this sensor without it’s module. Does is need any special amplifying?
Should we use interrupt or can we just read the values from analog read?
Or is the problem with timing? How long does it take for the sensor to detect movement?
I also attached the code we’re using and a picture of the results.
Any help will be appreciated :’(
Thanks in advance.
PIR_1.ino (575 Bytes)