ESP32-S2 Thing Plus Hookup Guide
Contributors:
QCPete, santaimpersonator
QCPete, santaimpersonator 
Software Overview
Installing the CP2104 USB Driver
Note: Make sure to manually install the driver for the CP210X with the following instructions. The driver that Windows auto-installs will not work with the auto-reset circuit on the board and cause serial uploads to fail.
Users will need to install the SiLabs CP2104 Driver, which can be found here: USB to UART Bridge VCP Driver
Note: If applicable, make sure you are using the proper driver files for your CPU architecture. This is usually indicated by a folder or file name with "x86" for 32-bit processors or "x64" for 64-bit processors.
Arduino IDE
Note: For first-time users, who have never programmed before and are looking to use the Arduino IDE, we recommend beginning with the SparkFun Inventor's Kit (SIK), which includes a simpler board like the Arduino Uno or SparkFun RedBoard and is designed to help users get started programming with the Arduino IDE.
Most users may already be familiar with the Arduino IDE and it's use. However, for those of you who have never heard the name Arduino before, feel free to check out the Arduino website. To get started with using the Arduino IDE, check out our tutorials below:
Installing an Arduino Library
How do I install a custom Arduino library? It's easy! This tutorial will go over how to install an Arduino library using the Arduino Library Manager. For libraries not linked with the Arduino IDE, we will also go over manually installing an Arduino library.
What is an Arduino?
What is this 'Arduino' thing anyway? This tutorials dives into what an Arduino is and along with Arduino projects and widgets.
Installing Arduino IDE
A step-by-step guide to installing and testing the Arduino software on Windows, Mac, and Linux.
Installing Board Definitions in the Arduino IDE
How do I install a custom Arduino board/core? It's easy! This tutorial will go over how to install an Arduino board definition using the Arduino Board Manager. We will also go over manually installing third-party cores, such as the board definitions required for many of the SparkFun development boards.
Install Board Definition
Update: Espressif has released a new Arduino core supporting the ESP32-S2. Users who previously installed the ESP32 development Arduino core, will need to Remove the Arduino core through the Board Manager and then, manually delete the Arduino core files; before re-installing the latest board definitions.
Install the latest ESP32 board definitions in the Arduino IDE.
Installing Board Definitions in the Arduino IDE
September 9, 2020
How do I install a custom Arduino board/core? It's easy! This tutorial will go over how to install an Arduino board definition using the Arduino Board Manager. We will also go over manually installing third-party cores, such as the board definitions required for many of the SparkFun development boards.
Note: For more instructions, users can follow this tutorial on Installing Additional Cores provided by Arduino. Users will also need the .json file for the Espressif Arduino Core:
https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json