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84 lines
3.5 KiB
84 lines
3.5 KiB
5 months ago
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| Supported Targets | ESP32-S2 | ESP32-S3 |
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| ----------------- | -------- | -------- |
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# TinyUSB MIDI Device 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 set up ESP chip to work as a USB MIDI Device.
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It outputs a MIDI note sequence via the native USB port.
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As a USB stack, a TinyUSB component is used.
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## How to use example
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### Hardware Required
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Any ESP board that have USB-OTG supported.
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#### Pin Assignment
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_Note:_ In case your board doesn't have micro-USB connector connected to USB-OTG peripheral, you may have to DIY a cable and connect **D+** and **D-** to the pins listed below.
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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 the project and flash it to the 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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## MIDI output
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You can use several programs on your computer to listen to the ESP's MIDI output depending on your operating system, e.g.:
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* Windows: `MIDI-OX`
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* Linux: `qsynth` with `qjackctl`
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* macOS: `SimpleSynth`
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## Example Output
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After the flashing you should see the output at idf monitor:
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```
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I (285) example: USB initialization
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I (285) tusb_desc:
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┌─────────────────────────────────┐
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│ USB Device Descriptor Summary │
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├───────────────────┬─────────────┤
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│bDeviceClass │ 0 │
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├───────────────────┼─────────────┤
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│bDeviceSubClass │ 0 │
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├───────────────────┼─────────────┤
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│bDeviceProtocol │ 0 │
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├───────────────────┼─────────────┤
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│bMaxPacketSize0 │ 64 │
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├───────────────────┼─────────────┤
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│idVendor │ 0x303a │
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├───────────────────┼─────────────┤
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│idProduct │ 0x4008 │
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├───────────────────┼─────────────┤
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│bcdDevice │ 0x100 │
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├───────────────────┼─────────────┤
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│iManufacturer │ 0x1 │
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├───────────────────┼─────────────┤
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│iProduct │ 0x2 │
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├───────────────────┼─────────────┤
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│iSerialNumber │ 0x3 │
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├───────────────────┼─────────────┤
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│bNumConfigurations │ 0x1 │
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└───────────────────┴─────────────┘
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I (455) TinyUSB: TinyUSB Driver installed
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I (465) example: USB initialization DONE
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```
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Disconnect UART-to-USB port and connect the native USB port to a computer then the device should show up as a USB MIDI Device while outputting notes.
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