| Parameter | Typical Value | |-----------|----------------| | Operating Voltage | 5V – 20V (but 5V works fine) | | Standby Current | < 50 µA | | Output High | 3.3V (not 5V – be careful) | | Output Low | 0V | | Delay Time | 5 – 300 seconds (adjustable) | | Sensitivity | 3 – 7 meters | | Trigger Modes | Single (non-repeatable) or Repeatable |
In other words: It’s a clone of the famous HC-SR501, just laid out slightly differently. hw416b pir sensor datasheet better
| Pin | Label | Function | |-----|-------|----------| | 1 | Vcc (or +) | Power input – 5 V or 3.3 V (see power notes) | | 2 | OUT | Signal output – HIGH when motion is detected | | 3 | GND | Ground (0 V) | | 4 | (Unlabelled) | Configuration pin – used for 3.3 V bypass power | | 5 | (Unlabelled) | Second configuration pin – typically left unconnected | hw416b pir sensor datasheet better
Features enhanced sensitivity adjustment compared to earlier or cheaper knockoffs. hw416b pir sensor datasheet better