Hw-416-b Pir Sensor Datasheet 'link'

Whether you are building an intruder alarm or an automated energy-saving light switch, understanding the technical specifications and operational boundaries of this component is critical. This comprehensive technical guide serves as a datasheet and implementation manual for the HW-416-B module. Technical Specifications (Datasheet Summary)

Unlike some micro-sensors, the HW-416-B typically includes two potentiometers (trimpots) on the back of the PCB to fine-tune its behavior:

Clockwise rotation increases the detection distance (up to ~7m), while counter-clockwise decreases it. Delay Time Potentiometer: hw-416-b pir sensor datasheet

Copy this article into a Word document, save as PDF, and you’ll have an unofficial but complete HW-416-B datasheet reference for your workshop.

Because the HW-416-B outputs a standard 3.3V logic level, it can be read directly by the digital input pins of an Arduino without a voltage divider. HW-416-B VCC →right arrow Arduino 5V HW-416-B OUT →right arrow Arduino Digital Pin 2 HW-416-B GND →right arrow Arduino GND Sample Arduino Code Whether you are building an intruder alarm or

The onboard IC processes this rapid pulse change, validates it against noise, and drives the OUT pin HIGH. 5. Circuit Diagram: Interfacing HW-416-B with Arduino

platform, this module is a staple for creating motion-activated lights, security systems, and smart home automation. Delay Time Potentiometer: Copy this article into a

The Fresnel lens (the white plastic dome) must remain unobstructed. If mounting in a box, ensure the dome protrudes through a cutout.