Hw-416-b Pir Sensor Datasheet !!top!! -
Power supply input (4.5V – 20V DC). Connect to the 5V output of your microcontroller.
Here is an interesting technical report summary based on reverse-engineering the HW-416/HC-SR501 hardware.
while True: if pir.value(): led.value(1) print("Motion detected!") time.sleep(1) else: led.value(0) time.sleep(0.1)
On the corner of the module, you will find three solder pads or a jumper labeled and L . hw-416-b pir sensor datasheet
Note: Pin ordering can vary depending on the specific manufacturer batch. Always check the silkscreen labels printed on the back of the PCB before powering the module. 4. Module Adjustments and Operational Modes Potentiometer Controls
The following sketch initializes the sensor, monitors the digital pin for motion, and prints the status to the Serial Monitor while toggling the onboard LED (Pin 13).
The is a standard Passive Infrared (PIR) motion sensor module, frequently used in DIY electronics projects with microcontrollers like Arduino, Raspberry Pi, and ESP32. It is essentially a variant of the widely documented HC-SR501 module. Technical Specifications Operating Voltage: typically 4.5V4.5 cap V 12V12 cap V Output Signal: Digital HIGH ( 3.3V3.3 cap V ) when motion is detected; Digital LOW ( ) when idle. Detection Range: Adjustable up to meters (approx. Detection Angle: Approximately 110∘110 raised to the composed with power Quiescent Current: Extremely low, often less than Time Delay: Adjustable from approx. seconds to seconds via on-board potentiometer. Pinout and Connections Power supply input (4
HW-416-B PIR Sensor Datasheet & Guide is a popular passive infrared (PIR) motion sensor module, commonly used in security systems, smart lighting, and DIY electronics projects . It is physically and functionally identical to the
Unfortunately, major manufacturers (e.g., ST, TI) do not produce an "HW-416-B" datasheet because this is a , not a raw component. The raw PIR sensor inside is typically the RE200B or LHI778 . To get the most detailed technical reference:
If you want, I can convert this into a printable one-page PDF datasheet layout, produce schematic wiring examples, or provide sample Arduino and Raspberry Pi code snippets for the HW-416-B. while True: if pir
💡 PIR sensors require a "warm-up" period of about 30 to 60 seconds after powering on to calibrate to the environment's infrared signature. During this time, you may get false triggers.
The HW-416-B output is . To safely interface with 3.3V logic: