Each channel within the sensor has a different field of view, so not only can it detect a human, but it can also tell which direction the person is moving.

Technical Description

The onboard AK9753(sensor name) 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.

Limitations/Features

1. Voltage: 1.7V to 3.3V
2. Extremely low current: 100µA

Skill

3- Competent

Links

https://github.com/sparkfun/Qwiic_Human_Presence_Sensor_Breakout_AK9753

https://www.sparkfun.com/products/14349

Examples

https://github.com/sparkfun/SparkFun_AK975x_Arduino_Library/tree/master/examples