SparkFun Human Presence Sensor Breakout Review

The SparkFun AK9753 Human Presence Sensor Breakout 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. All communication is enacted exclusively via I2C, utilizing our handy Qwiic system (no soldering required). However, we still have 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. Operates at 1.7V to 3.3V. Pulls extremely low current: 100μA. Online hookup guide available.