Button Example

This example shows how to use the espp::Button class to handle input events from a physical button connected to an ESP32 GPIO pin.

How to use example

Hardware Required

This example is designed to be run on an ESP32 board which has a digital button connected to GPIO2 of the ESP32, with the button having a hardware pull-down resistor so that its resting state is logic low and its active / pressed state is logic high.

Build and Flash

Build the project and flash it to the board, then run monitor tool to view serial output:

idf.py -p PORT flash monitor

(Replace PORT with the name of the serial port to use.)

(To exit the serial monitor, type Ctrl-].)

See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.

Example Output