Datasheet — Hw-416-b Pir Sensor

The HW-416-B features two adjustable potentiometers on the PCB:

Understanding the internal architecture helps in reading the datasheet correctly. The HW-416-B consists of: hw-416-b pir sensor datasheet

The key IC on most HW-416-B boards is the BISS0001 (or a clone like the HT7610B). Referencing the BISS0001 datasheet can give you deeper insight into the timing and sensitivity adjustment. The HW-416-B features two adjustable potentiometers on the

The HW-416-B module typically features two orange potentiometers. Most online tutorials claim one controls "Sensitivity" (Distance) and the other controls "Time Delay." The key IC on most HW-416-B boards is

The Interesting Finding: The potentiometer labeled "Sensitivity" acts as a voltage divider into the BIS0001 chip. However, extensive testing shows that it does not significantly alter the physical range of the sensor in the way users expect.