— You might mean HC-SR501 (most common PIR module) or HW-416 (some Arduino motion sensor boards). HW-416 itself usually refers to a PIR module similar to HC-SR501.
attachInterrupt(digitalPinToInterrupt(PIR_PIN), motionISR, RISING); hw416b pir sensor datasheet better
< 50uA (Excellent for battery-powered IoT devices). Output Level: High 3.3V / Low 0V. — You might mean HC-SR501 (most common PIR
void motionISR() motionDetected = true;