0.5 seconds to 200 seconds (Adjustable via onboard potentiometer)

By understanding the pinout, voltage configuration options, jumper settings, and calibration procedures described in this datasheet, engineers and makers can quickly integrate the HW-416-B into Arduino, ESP32, and Raspberry Pi projects—from simple security lights to sophisticated home automation systems.

This adjusts how long the pin stays high after detecting motion. Clockwise: Increases delay (up to 5 minutes). Counter-clockwise: Decreases delay (down to 5 seconds). 4.3 Trigger Mode (Jumper)

The workshop at the edge of town smelled of solder and lemon oil. Under a crooked lamp, Mira wiped a smudge from a tiny board labeled HW-416-B and held it up to the light. It was one of those everyday miracles: a compact PIR sensor module—unassuming, bronze pins like teeth, a plastic dome that hid a miniature world of circuits and possibility.

The module’s digital output is 3.3 V when HIGH, which is safe for both 3.3 V and 5 V logic microcontrollers.