SparkFun Qwiic Human Presence Sensor Breakout - AK9753
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Product details
| Management number | 234966945 | Release Date | 2026/07/02 | List Price | US$13.15 | Model Number | 234966945 | ||
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- 4-channel Nondispersive Infrared (NDIR) sensor
- Qwiic-Connector Enabled
- 16-bit reading on all four channels
- Digital I2C Interface
- Voltage: 1.7V to 3.3V
The SparkFun Qwiic Human Presence Sensor Breakout - AK9753 is a Qwiic-enabled, 4-channel Nondispersive Infrared (NDIR) sensor. Each channel has a different field of view, so not only can the AK9753 detect a human, but it can also tell which direction the person is moving. To make it even easier to use this breakout, all communication is enacted exclusively via I2C, utilizing our handy Qwiic system. However, you will find broken out 0.1" spaced pins in case you prefer to use a breadboard.
The onboard AK9753 is a digital sensor giving you a 16-bit digital value over I2C. Each of the four sensors outputs the IR current in pico-amps. A PIR reading can vary from roughly -200 (no human present) to 1500 when a human is detected standing in front of a given channel, but it varies due to environmental factors and other heat sources in view.
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