1.6 KiB
| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-S2 | ESP32-S3 |
|---|
Example: Blink C++ example
(See the README.md file in the upper level 'examples' directory for more information about examples.)
This example demonstrates usage of the GPIO_Output C++ class in ESP-IDF.
In this example, the sdkconfig.defaults file sets the CONFIG_COMPILER_CXX_EXCEPTIONS option.
This enables both compile time support (-fexceptions compiler flag) and run-time support for C++ exception handling.
This is necessary for the C++ APIs.
How to use example
Hardware Required
Any ESP32 family development board.
Connect an LED to the corresponding pin (default is pin 4). If the board has a normal LED already, you can use the pin number to which that one is connected.
Development boards with an RGB LED that only has one data line like the ESP32-C3-DevKitC-02 and ESP32-C3-DevKitM-1 will not work. In this case, please connect an external normal LED to the chosen pin.
Configure the project
idf.py menuconfig
Build and Flash
idf.py -p PORT flash monitor
(Replace PORT with the name of the serial port.)
(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
...
I (339) cpu_start: Starting scheduler.
I (343) gpio: GPIO[4]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0
LED ON
LED OFF
LED ON
LED OFF
LED ON
LED OFF
LED ON
LED OFF
LED ON
LED OFF