Hw416b Pir Sensor Datasheet Better 2021
The HW416B has two orange trimmer potentiometers (variable resistors). Most datasheets label them simply as "Time" and "Sensitivity." That is not enough. Here is the better explanation.
Crucial Tip: Do not reverse VCC and GND. The HW416B has no reverse polarity protection on many clones. One wrong connection = a dead sensor. hw416b pir sensor datasheet better
| Feature | HW-416B | HC-SR501 | |---------|---------|----------| | Configuration pins | Yes, extra set for 3.3V power | Standard 3-pin only | | Lens type | Imported pyroelectric lens | Varies by manufacturer | | Adjustment pots | Two (sensitivity, time delay) | Two (sensitivity, time delay) | | Availability | Common (often labeled HW-416-B) | Extremely common | | Output | 0–3.3V with 1kΩ internal resistor | 0–3.3V similar | The HW416B has two orange trimmer potentiometers (variable
| Parameter | Value | | :--- | :--- | | | Passive Infrared (PIR) | | Operating Voltage | 5V - 20V (Typical 5V) | | Output Voltage | 3.3V HIGH / 0V LOW | | Current Draw | < 65 mA (Active) / ~50 μA (Standby) | | Detection Range | 3 to 7 meters (Adjustable) | | Detection Angle | ~110° cone | | Time Delay (Ton) | 3 seconds to 5 minutes (Adjustable) | | Blocking Time (Toff) | ~2.5 seconds (Fixed) | | Trigger Modes | H (Repeatable) / L (Non-repeatable) | | Warm-up Time | 30 to 60 seconds | | Operating Temp. | -15°C to +70°C | | Dimensions | ~32mm x 24mm x 24mm | | Mounting | Flange with two mounting holes | Crucial Tip: Do not reverse VCC and GND