The HW-416B has two small yellow jumpers and three pins labeled and H .
// Turn off LED after hold time (simulates retrigger management) if (millis() - lastMotionTime > MOTION_HOLD_MS) digitalWrite(LED_PIN, LOW); hw416b pir sensor datasheet better
The HW416B cannot directly power a relay, buzzer, or LED strip (it will drop voltage drastically). The HW-416B has two small yellow jumpers and
Generic search yields questionable PDFs from random electronics forums. For a verified datasheet: hw416b pir sensor datasheet better
RTC_DATA_ATTR int bootCount = 0;