Hello, I bought a PIR Motion Sensor (this one http://www.robot-italy.com/product_info.php?products_id=1558
I followed the schema reported in the posted url, but it does not work, it gives me values not consistent with the movements.
I am not so good in electronics, so I don't know how to proceed.
The signal produced by the PIR is 0V when there is no motion, and 12V when some motion is sensed.
I also tried to connect the signal produced with a series of two resistors: 14Kohm and 10Kohm. And then to the ground. In this way, the potential difference between the 10Kohm resistor and the ground should be 5 volts when some motion is sensed. Anyway it does not work!
Can anyone help me?
Thanks a lot!