Add LILYGO TTGO T8 ESP32-S2-WROOM

_board/lilygo_ttgo_esp32_s2_wroom.md

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+---
+layout: download
+board_id: "lilygo_ttgo_t8_esp32_s2_wroom"
+title: "TTGO T8 ESP32-S2-WROOM Download"
+name: "TTGO T8 ESP32-S2-WROOM"
+manufacturer: "LILYGO"
+board_url: "http://www.lilygo.cn/prod_view.aspx?TypeId=50063&Id=1320&FId=t3:50063:3"
+board_image: "lilygo_ttgo_t8_esp32_s2_wroom.jpg"
+bootloader_id: "lilygo_ttgo_t8_s2_st7789"
+date_added: 2022-3-1
+downloads_display: true
+family: esp32s2
+features:
+  - Wi-Fi
+  - USB-C
+  - Breadboard-Friendly
+---
+
+The LILYGO TTGO T8 ESP32-S2 ESP32-S2-WROOM is a basic development board.
+
+## Features & Specifications
+
+ - ESP32-S2 240 MHz Tensilica processor
+ - Wi-Fi 802.11 b/g/n 2.4 GHz
+ - 4 MB FLASH
+ - 8 MB PSRAM
+ - 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 instructions
+
+You need to install an UF2 Bootloader.
+
+After flashing the Bootloader change the DIP switches (the ones closer to the
+USB-C connector) to OTG mode, when reconnected you should see the drive and can
+copy over the CircuitPython UF2 file. 
+
+```text
+USB        OTG
+
+On         On
+o   o        o   o
+  o   o    o   o
+1 2 3 4    1 2 3 4
+```
+
+## Purchase
+
+* [AlixExpress](https://www.aliexpress.com/item/4001080875553.html?spm=a2g0o.store_pc_groupList.8148356.17.4c0236fcsFJuWs)