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@@ -1,4 +1,4 @@
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-# _RMT Transmit Example_
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+# _RMT Transmit Example_
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(See the README.md file in the upper level 'examples' directory for more information about examples.)
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@@ -8,7 +8,24 @@ This example will shows how to configure and operate the remote control (RMT) pe
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### Hardware Required
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-To run this example, you need to prepare a development board with esp32 SoC(e.g., ESP32_Core_board, ESP-WORVER_KIT etc), a LED, a speaker or an earphone and a USB cable for power supply and programming.
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+* A development board with ESP32 SoC (e.g., ESP32-DevKitC, ESP-WORVER-KIT, etc.)
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+* A USB cable for Power supply and programming
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+* A LED, a speaker or an earphone
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+
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+Connection :
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+
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+```
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+ 330R LED
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+GPIO18 +----/\/\/\----+------|>|-----+ GND
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+ |
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+ | /|
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+ +-+ | Speaker
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+ | | | or
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+ +-+ | earphone
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+ | \|
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+ |
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+ +--------------+ GND
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+```
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### Configure the Project
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@@ -34,20 +51,6 @@ See the [Getting Started Guide](https://docs.espressif.com/projects/esp-idf/en/l
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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 GPIO18(the pin can be changed by modify the definition of `RMT_TX_GPIO` in `main/rmt_tx_main.c`).
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-
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-```
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- 330R LED
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-GPIO18 +----/\/\/\----+------|>|-----+ GND
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- |
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- | /|
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- +-+ | Speaker
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- | | | or
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- +-+ | earphone
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- | \|
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- |
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- +--------------+ GND
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-```
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-
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Run this example, you will see the following output log:
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```
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RMT Tx: Transmission complete
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@@ -58,7 +61,7 @@ RMT Tx: Sample transmission complete
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* Programming fail
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- * To check whether the hardware connection is correct, you can run `make monitor` and reboot your board to see if there are any output logs.
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- * Your download baud-rate is too high. please lower your download baud-rate in menuconfig and try again.
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+ * Hardware connection is not correct: run `make monitor`, and reboot your board to see if there is any output logs.
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+ * The baud rate for downloading is too high: lower your baud rate in the `menuconfig` menu, and try again.
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-If any problems that can't be resolved, please open an issue in GitHub(https://github.com/espressif/esp-idf/issues), we will reply to you soon.
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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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Hou Wen Xiang