Keyestudio ESP32 - 4. Test Code

ESP32 Starter Kit
3. Wiring Diagram
4. Test Code
From the working principle, we can read the level of the sensor pin to judge whether there are people nearby.
/*
keyestudio ESP32 Inventor Learning Kit
Project 17.1 Invasion Alarm
http://www.keyestudio.com
*/
int pir = 5; //Define IO5 as PIR sensor pin
void setup() {
pinMode(pir,INPUT); //Set IO5 pin to input
Serial.begin(9600);
}
void loop() {
int pir_val = digitalRead(pir); //Read the PIR result and assign it to pir_val
Serial.print("pir_val:"); //Print “pir_val”
Serial.println(pir_val);
delay(500);
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106 Chapter 8. Arduino Tutorial