M5Stack PIR Motion Sensor Module for Smart Devices - 500cm Range, 2s Latency, Grove B Interface

The module provides a digital output signal (high/low) via the Grove B connector, which is primarily an I2C interface. When motion is detected, the output pin goes high and remains high for the fixed 2-second latency period before returning low, allowing for easy digital input reading by microcontrollers like the M5 Core.

The 2-second latency or hold time prevents output signal oscillation when detecting slow-moving or stationary targets within the field of view. It ensures a stable, readable high pulse for your controller and allows for repeated triggering if motion persists, simplifying the code logic for counting events or maintaining an activated state.

Yes. While designed for the M5 ecosystem, the Grove B connector is standard. You can use it with any microcontroller or SBC (like Arduino or Raspberry Pi) that supports I2C communication or can read a digital input pin, provided you have a compatible Grove shield or adapter to connect the included cable.

The sensor has a wide detection angle of less than 100 degrees. The module includes two LEGO-compatible holes, allowing for creative mounting using LEGO technic beams or standard M3 screws. For optimal coverage, mount it at an appropriate height and angle where movement across the sensing area is expected.