IR Detector

IR Detector

This is a general purpose IR detector with LED and buzzer indication and adjustable sensitivity.

This model complements my IR Source...

https://www.thingiverse.com/thing:6497222

...using the same case style. Together, the two constitute a self-licking ice cream cone, but may be useful as testing tools. The detector responds to sunlight, a solid IR source and the encoded output from IR remotes.

There are no on-board batteries. Power should be 5-6 V DC to the 5.5 mm barrel jack with the center pin positive. There is a latching push-button on-off switch.

The sensor is a photodiode IR receiver in the end of the case. There are a pair of LEDs on the top cover, red for power indication and white for IR indication. There's a buzzer, with a DIP switch to silence it if desired. The pot adjusts sensitivity.

There's a washer/spacer to keep too much of the 5 mm photodiode from protruding through the end of the case. It gets glued on the inside of the case.