Modifications

Because there is a semiconductor/chip inside the sensor, it must be powered with 5V to function. Contrast this to photocells and FSRs where they act like resistors and thus can be simply tested with a multimeter.

Because there is a semiconductor/chip inside the sensor, it must be powered with 5V to function. Contrast this to photocells and FSRs where they act like resistors and thus can be simply tested with a multimeter.

[[Fichier:pna4602pinout.jpg]]

[[Fichier:IR-pna4602pinout.jpg]]

Here we will connect the detector as such:

Here we will connect the detector as such: