esp-idf/examples/peripherals/rmt/musical_buzzer

Supported Targets	ESP32-S2	ESP32-C3

RMT Transmit Loop Example -- Musical Buzzer

(See the README.md file in the upper level 'examples' directory for more information about examples.)

RMT peripheral can send customized RMT items in a loop, which means we can use it to generate a configurable length of periodic signal.

This example will show how to drive a passive buzzer to play a simple music, based on the RMT loop feature.

How to Use Example

Hardware Required

• A development board with ESP32-S2 SoC
• A USB cable for Power supply and programming
• A passive buzzer

Connection :

VCC  +--------------+
                    | /+
                   +++ |
                   | | | Passive Buzzer
                   +++ |
                    | \+
                    |
              +     |
              +<----+
GPIO +--------+
              +-----+
              +     |
                    |
GND  +--------------+

Build and Flash

Run idf.py -p PORT flash monitor to build, flash and monitor the project.

(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 (325) example: Playing Beethoven's Ode to joy

After you seeing this log, you should hear the music from your buzzer. You can also play other music by updating the notation array in the musical_buzzer_example_main.c.

Troubleshooting

For any technical queries, please open an issue on GitHub. We will get back to you soon.