Trigger/Echo Protocol SensorsCompatible with ESP32
The list of sensors using Trigger/Echo protocol for your ESP32 projects, complete with wiring guides and code examples.
Trigger and Echo is a signal method used in ultrasonic distance sensors like the HC-SR04. One pin sends an ultrasonic pulse (Trigger), and the other receives the reflected signal (Echo), allowing you to measure distance by calculating the time it takes for the echo to return.
Both ESP32 and Arduino handle this method well using pulseIn() and precise timing functions. Ultrasonic modules are great for robot navigation, level detection, and obstacle avoidance projects.
HC-SR04
The HC-SR04 is a versatile ultrasonic distance sensor capable of measuring distances up to 4 meters with high precision....
JSN-SR04T
The JSN-SR04T is a waterproof ultrasonic distance sensor ideal for outdoor and industrial applications. With a measuring...