Add TTGO T8 ESP32-S2

Author: fabaff

_board/lilygo_ttgo_t8_s2.md

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+---
+layout: download
+board_id: "lilygo_ttgo_t8_s2"
+title: "TTGO T8 ESP32-S2 Download"
+name: "TTGO T8 ESP32-S2"
+manufacturer: "LILYGO"
+board_url: "http://www.lilygo.cn/prod_view.aspx?TypeId=50033&Id=1321"
+board_image: "lilygo_ttgo_t8_s2.jpg"
+date_added:
+family: esp32s2
+features:
+  - Wi-Fi
+  - Battery Charging
+  - USB-C
+  - Breadboard-Friendly
+---
+
+The TTGO T8 ESP32-S2 development board has useful features like the microSD card slot or the option to run the board with battery power. This board is very similar to the TTGO T8 ESP32-S2 ST7789 just without the display.
+
+## Technical details
+
+- ESP32-S2 240 MHz Tensilica processor
+- Wi-Fi 802.11 b/g/n 2.4 GHz
+- 4 MB FLASH
+- 8 MB PSRAM
+- microSD card slot
+- built in battery charging, 2-pin 1.25 mm JST connector
+- on/off power switch
+- reset and boot button
+- onboard 32.768 kHz crystal oscillator
+- USB-C connector
+
+## Schematic
+
+- [LILYGO Github repository](https://github.com/Xinyuan-LilyGO/ESP32_S2)
+
+## Setup
+
+To flash this image use this command:
+
+```sh
+esptool.py  --chip esp32s2 --port (COMPORT) \
+  --baud 115200 write_flash 0x000 \
+  adafruit-circuitpython-lilygo_ttgo_t8_s2-xx_XX-X.Y.Z.bin
+```
+
+After flashing change the DIP switches (the ones closer to the USB-C connector) to OTG mode, when reconnected you should see the `CIRCUITPY` drive.
+
+```text
+USB        OTG
+
+On         On
+o   o        o   o
+  o   o    o   o
+1 2 3 4    1 2 3 4
+```
+
+## Purchase
+
+* [Aliexpress](https://www.aliexpress.com/item/4001080714038.html?spm=a2g0o.store_pc_groupList.8148356.43.2de336fcINy4O7)