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42 lines
1.5 KiB
Markdown
42 lines
1.5 KiB
Markdown
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| Supported Targets | ESP32-S2 | ESP32-S3 |
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| ----------------- | -------- | -------- |
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# USB CDC-ACM Virtual Com Port 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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This example shows how to extend CDC-ACM driver for Virtual Communication Port devices,
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such as CP210x or FTDI FT23x devices.
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## How to use example
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1. Pick your USB-to-UART device by executing `idf.py menuconfig` and navigating to `Example Configuration -> USB-to-UART device type`
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2. Change baudrate and other line coding parameters in `cdc_acm_vcp.cpp` to match your needs
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3. Now you can use the CDC-ACM to API to control the device and send data. Data are received in `handle_rx` callback
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4. Try disconnecting and then reconnecting of the USB device to experiment with USB hotplugging
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### Hardware Required
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* ESP board with USB-OTG supported
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* Silicon Labs CP210x or FTDI FT23x USB to UART converter
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Connect USB_D+, USB_D-, GND and +5V signals of your ESP chip to matching signals on USB to UART converter.
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#### Pin Assignment
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See common pin assignments for USB Device examples from [upper level](../../../README.md#common-pin-assignments).
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### Build and Flash
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Build this project and flash it to the USB host board, then run monitor tool to view serial output:
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```bash
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idf.py -p PORT flash monitor
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```
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(Replace PORT with the name of the serial port to use.)
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(To exit the serial monitor, type ``Ctrl-]``.)
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See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
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