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| : Super Schwacke |
The HW-416B has (trimpots).
Regardless of the silkscreen on the PCB, this is a classic, low-cost Passive Infrared (PIR) motion sensor module. It's designed to detect the movement of a human (or animal) by sensing changes in ambient infrared radiation. hw416b pir sensor datasheet better
Understanding the electrical limits of the HW-416B prevents component damage and ensures reliable motion detection. Specification DC 4.5V to 20V 5V or 12V regular rails work best Static Current Ideal for battery-powered setups Output Level High 3.3V / Low 0V Digital TTL signal Trigger Modes L (Non-repeat) / H (Repeat) Set via onboard jumper or solder pads Delay Time Adjustable (0.5s to 200s+) Controlled by onboard potentiometer Blockade Time 2.5 seconds Default lock time between triggers Detection Angle < 100° cone angle Dependent on Fresnel lens alignment Detection Distance Up to 7 meters Adjustable via potentiometer Operating Temp -20°C to +80°C Extreme temps affect sensitivity 📌 Pinout Configurations The HW-416B has (trimpots)
void loop() val = digitalRead(PIR_PIN);
attachInterrupt(digitalPinToInterrupt(PIR_PIN), motionISR, RISING); Understanding the electrical limits of the HW-416B prevents
However, when the goal is truly a "better" sensor, it's important to recognize the HW416B's limitations. For applications demanding higher reliability, lower power consumption, or a smaller physical footprint, exploring alternatives like the Panasonic NaPiOn or the RCWL-0516 microwave sensor is the logical next step.
The HW-416B has (trimpots).
Regardless of the silkscreen on the PCB, this is a classic, low-cost Passive Infrared (PIR) motion sensor module. It's designed to detect the movement of a human (or animal) by sensing changes in ambient infrared radiation.
Understanding the electrical limits of the HW-416B prevents component damage and ensures reliable motion detection. Specification DC 4.5V to 20V 5V or 12V regular rails work best Static Current Ideal for battery-powered setups Output Level High 3.3V / Low 0V Digital TTL signal Trigger Modes L (Non-repeat) / H (Repeat) Set via onboard jumper or solder pads Delay Time Adjustable (0.5s to 200s+) Controlled by onboard potentiometer Blockade Time 2.5 seconds Default lock time between triggers Detection Angle < 100° cone angle Dependent on Fresnel lens alignment Detection Distance Up to 7 meters Adjustable via potentiometer Operating Temp -20°C to +80°C Extreme temps affect sensitivity 📌 Pinout Configurations
void loop() val = digitalRead(PIR_PIN);
attachInterrupt(digitalPinToInterrupt(PIR_PIN), motionISR, RISING);
However, when the goal is truly a "better" sensor, it's important to recognize the HW416B's limitations. For applications demanding higher reliability, lower power consumption, or a smaller physical footprint, exploring alternatives like the Panasonic NaPiOn or the RCWL-0516 microwave sensor is the logical next step.
