Hw416b Pir Sensor Datasheet Better - ((top))

#include <esp_sleep.h>

#define PIR_PIN GPIO_NUM_4

Most datasheets show a grainy black-and-white image. Here is the clear pinout: hw416b pir sensor datasheet better

The two extra pins (sometimes referred to as “configuration pins”) can be used to change the module’s operating mode. Connecting a jumper between them alters the trigger behaviour (repeat/non‑repeat). When powered at 3.3 V, the correct pin to use is the one shown in Figure 3 of many HW‑416 tutorials—not the other unlabelled pins. #include &lt;esp_sleep

Controls how long the output remains High after motion stops. Operating Modes When powered at 3

Maximizing Performance with the HW-416B PIR Sensor: A Deep Dive into the Datasheet

// PIR Motion Sensor with Arduino (HW416B / HC-SR501) int pirPin = 2; // OUT pin connected to digital pin 2 int ledPin = 13; // Built-in LED