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59 lines
1.7 KiB
Markdown
59 lines
1.7 KiB
Markdown
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| Supported Targets | ESP32-S2 | ESP32-C3 |
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| ----------------- | -------- | -------- |
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# RMT Transmit Loop Example -- Musical Buzzer
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(See the README.md file in the upper level 'examples' directory for more information about examples.)
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RMT peripheral can send customized RMT items in a loop, which means we can use it to generate a configurable length of periodic signal.
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This example will show how to drive a passive buzzer to play a simple music, based on the RMT loop feature.
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## How to Use Example
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### Hardware Required
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* A development board with ESP32-S2 SoC
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* A USB cable for Power supply and programming
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* A passive buzzer
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Connection :
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```
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VCC +--------------+
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+++ |
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| | | Passive Buzzer
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+++ |
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+ |
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+<----+
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GPIO +--------+
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+-----+
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+ |
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GND +--------------+
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```
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### Build and Flash
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Run `idf.py -p PORT flash monitor` to build, flash and monitor the project.
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(To exit the serial monitor, type ``Ctrl-]``.)
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See the [Getting Started Guide](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/index.html) for full steps to configure and use ESP-IDF to build projects.
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## Example Output
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```
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I (325) example: Playing Beethoven's Ode to joy
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```
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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`.
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## Troubleshooting
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For any technical queries, please open an [issue] (https://github.com/espressif/esp-idf/issues) on GitHub. We will get back to you soon.
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