SparkFun Qwiic Human Presence Sensor Breakout (SEN-14349)

SparkFun Qwiic Human Presence Sensor Breakout (SEN-14349) is a 4-channel Nondispersive Infrared (NDIR) sensor that detects the presence and direction of movement of a person. This breakout board features a digital I²C interface, AK9753 sensor module, and 16-bit reading on all four channels. The onboard AK9753 low-power and compact Infrared-Ray (IR) sensor module comprise four quantum IR sensors and an IC for characteristic compensation. The four sensor outputs of AK9753 provide the IR current in picoamps via an I²C interface. The PIR reading varies from -200 to 1500 depending on if a human is detected standing in front of a given channel.