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Lolin S2 Mini - edited features & added flashing instructions

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Durapensa 2021-09-04 18:49:43 -04:00
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_board/lolin_s2_mini.md
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@ -13,16 +13,43 @@ features:
### Features
- based ESP32-S2FN4R2 WIFI IC
- Type-C USB
- ESP32-S2FN4R2 WiFi SoC
- USB Type-C connector, for built-in ROM USB bootloader & serial port debugging
- 4MB Flash
- 2MB PSRAM
- 27x IO
- ADC, DAC, I2C, SPI, UART, USB OTG
- Compatible with LOLIN D1 mini shields
- Compatible with MicroPython, Arduino and ESP-IDF
- Compatible with CircuitPython, MicroPython, Arduino and ESP-IDF
- Default firmware: MicroPython
### Flashing UF2 Bootloader
***Important***: *this will erase previously flashed firmware & sketches from the board.*
- Download the latest `tinyuf2-lolin_s2_mini-......zip` from [TinyUF2 releases](https://github.com/adafruit/tinyuf2/releases),
- Unzip to find `combined.bin`.
- Place board in bootloader mode:
- Plug board into a USB port on your computer using a data/sync cable. Make sure it is the only board plugged in, and that a charge-only cable is not being used.
- Press and hold the `0` button down. Don't let go of it yet!
- Press and release the `RST` button. You should have the `0` button pressed while you do this.
- Release the `0` button.
- Use the Adafruit WebSerial ESPTool to upload `combined.bin` (Google Chrome 89 or newer):
- Open a new web browser window or tab to the [Adafruit WebSerial ESPTool](https://adafruit.github.io/Adafruit_WebSerial_ESPTool/)
- Select *460800 Baud* from the pull-down menu at the top-right of the page.
- Click the *Connect* button at the top-right of the page.
- Select the COM or Serial port from the pop-up window.
- After successful connection, click the `Erase` button.
- After successful erase, click the first `Choose a file...` button, locate the `combined.bin` file unzipped earlier, click `Ok`.
- After successfully choosing the `combined.bin` file, click the `Program` button.
- After the TinyUF2 firmware update is complete, press the `RST` button. A new drive `S2MINIBOOT` should be visible in your file browser.
### Flashing CircuitPython
- Flash the UF2 bootloader using the instruction above.
- Download the `.UF2` file from this page.
- Drag & Drop the `.UF2` file to the `S2MINIBOOT` drive.
## Purchase
* [AliExpress](https://www.aliexpress.com/item/1005003145192016.html)