int sensor = 23; //Pin that the sensor is attached to int state = HIGH; // by default, no motion detected int val = 0; // variable to sensor status (value) ...

Here, you’ll learn how to interface the ultrasonic sensor with Arduino and how to write code that responds to nearby obstacles instantly with zero latency. This is crucial for the navigation of people ...

Use the ESP32 as a software motion detector for whole house based on multipath interference in RSSI. Will detect human intruders when they cross the path between the ESP32 and other access points or ...