Hw-416-b Pir Sensor Datasheet Page

In the quiet hum of Leo’s cluttered workshop, a single HW-416B PIR sensor

Will this sensor control a like a relay, buzzer, or smart home system?

Do not connect the output directly to a high-current load (e.g., a relay or LED strip). Use a transistor or an optocoupler for isolation.

try: while True: if GPIO.input(PIR_PIN): print("Motion detected!") time.sleep(1) except KeyboardInterrupt: print("Quit") GPIO.cleanup() hw-416-b pir sensor datasheet

platform, this module is a staple for creating motion-activated lights, security systems, and smart home automation.

Passive Infrared (PIR) sensors are the backbone of modern security systems, automated lighting, and smart home robotics. Among the various budget-friendly modules available to makers and engineers, the stands out for its compact form factor, reliability, and ease of integration.

sat atop a stack of breadboards, its white, faceted dome—the Fresnel lens—looking like a miniature igloo under the desk lamp. Leo was an inventor by night, and tonight, his mission was simple: build a security system for his snack drawer. In the quiet hum of Leo’s cluttered workshop,

A jumper on the module board selects the sensor’s trigger behavior:

Avoid placing the sensor near heaters, air conditioners, or direct sunlight, as rapid temperature changes can cause false alarms.

if (motionState == HIGH) digitalWrite(ledPin, HIGH); Serial.println("Motion Detected!"); delay(100); else digitalWrite(ledPin, LOW); try: while True: if GPIO

The dual slots look at two distinct zones.

Functionally identical; only PCB layout and color differ.