Qwiic IR Breakout

$ 14.95 $ 4.49

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Have you ever needed to monitor your yogurt in the community fridge because there’s a yogurt thief loose at work? Or have you ever needed the lights to flick on when walking in a room because your hands were full of groceries? The Qwiic IR breakout is the solution to all your people-detecting needs.

This board utilizes Kemet Corporation’s lensless passive infrared sensor, PL-N823. It uses the pyroelectric effect of ceramic by absorbing infrared rays emitted from the human body. This sensor has a 60 degree viewing angle, low power consumption, and low profile which makes it ideal for gathering visual requirements.

Though this is a lensless infrared sensor, placing the sensor behind a material like glass, acrylic, or polyethylene may amplify the distance at which it can detect. The detecting distance varies by what material is used, but Kemet claims the PL-N823 can detect up to 2 meters with a matching lens. This product does not include a lens so expect ranges closer to 10cm out-of-the-box.

We’ve written some example code using the ADS1015 library. The qwiic IR breakout board includes an ADC which quantifies the amplified source voltage of the IR sensor. There’s also a rudimentary peak detection example that could notify the user when someone waves their hand across the sensor.

We do not plan to regularly produce SparkX products so get them while they’re hot!

Experimental Product: SparkX products are rapidly produced to bring you the most cutting edge technology as it becomes available. These products are tested but come with no guarantees. Live technical support is not available for SparkX products. Head on over to our forum for support or to ask a question.


Looking for answers to technical questions?

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  • PickledDog / about 4 years ago / 3

    Do they all come with Nate's fingerprint on them? :P

  • Member #705210 / about 3 years ago / 1

    Your spec on distance states and I quote "can detect up to 2 meters." BUT the Guthub description states "detection can be as far away as 10cm to 20cm." Very disappointed I did not read the Github description before I got these... Its really more like 10cm.

    • That's fair. We were also disappointed with it. I believe Kemet marketing team was quoting truly ideal environment coupled with a lens. I'll update the description to better reflect reality.

      • Member #1728225 / about 2 years ago / 1

        Could you tell me which Gain was used in the opamp? The documentation here says 1,2 but in github i also saw a schematic with a 4,7k resistor instead of 1,2k so more gain on the analog source. Could this increase the detection range you think?

  • Member #134773 / about 3 years ago / 1

    Under "Documents", I'd like to see a link to the ADS1015 data sheet. (There is a link to it on the SparkFun Qwiic 12 Bit ADC - 4 Channel (ADS1015) page.)

  • Member #134773 / about 3 years ago / 1

    If this does go to "red board status", I'd suggest bringing the other three pins of the ADC mux out to an edge, so they could be used.

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