25 lines
970 B
Markdown
25 lines
970 B
Markdown
# RMT Transmit Example
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This example shows how to configure and operate the remote control (RMT) peripheral to transmit a sample message in the [Morse code](https://en.wikipedia.org/wiki/Morse_code).
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Configuration (pin number, etc.) can be modified in the top of the `main/rmt_tx_main.c` file.
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To be able to see and hear the message output by the RMT, connect a LED and a speaker or an earphone (be careful - it may be loud) to the GPIO configured under `RMT_TX_GPIO` define (default is GPIO 18).
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Example connections:
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```
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330R LED
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GPIO18 +----/\/\/\----+------|>|-----+ GND
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+-+ | Speaker
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+-+ | earphone
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+--------------+ GND
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```
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See the README.md file in the upper level 'examples' directory for more information about examples.
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