Hw-416-b Pir Sensor Datasheet [exclusive] Official

The HW-416-B features a simple 3-pin interface, making it compatible with almost any microcontroller (Arduino, ESP32, Raspberry Pi). Power input (4.5V to 20V).

The HW‑416‑B has three main pins, plus two extra pins that allow 3.3 V operation. hw-416-b pir sensor datasheet

The PCB typically includes reserved solder pads for a photoresistor (to disable the sensor during daylight) and a thermistor (for temperature compensation). Pinout and Connection Guide PIR Motion Sensor HW416B - Tayda Electronics The HW-416-B features a simple 3-pin interface, making

Triggering IP cameras or sound alarms when unauthorized entry is detected. hw-416-b pir sensor datasheet

The white dome is a Fresnel lens . It focuses infrared light from multiple angles onto the tiny pyroelectric sensor inside. PIR Motion Sensor HW416B - Tayda Electronics

void loop() int motionState = digitalRead(pirPin);