Chapter 1. Get Started
Fig. 3: ESP32-S2-Saola-1 - front
Key Component Description
ESP32-S2-WROVER ESP32-S2-WROVER is a powerful, generic Wi-Fi MCU module that inte-
grates ESP32-S2. It has a PCB antenna, a 4 MB external SPI flash and an
additional 2 MB PSRAM.
Pin Headers All available GPIO pins (except for the SPI bus for flash and PSRAM) are
broken out to the pin headers on the board. Users can program ESP32-S2
chip to enable multiple functions such as SPI, I2S, UART, I2C, touch sensors,
PWM etc.
3.3 V Power On LED Turns on when the USB power is connected to the board.
USB-to-UART Bridge Single USB-UART bridge chip provides transfer rates up to 3 Mbps.
Reset Button Reset button.
Micro-USB Port USB interface. Power supply for the board as well as the communication in-
terface between a computer and the ESP32-S2 chip.
Boot Button Download button. Holding down Boot and then pressing Reset initiates
Firmware Download mode for downloading firmware through the serial port.
RGB LED Addressable RGB LED (WS2812), driven by GPIO18.
Start Application Development Before powering up your ESP32-S2-Saola-1, please make sure that it is in good
condition with no obvious signs of damage.
Required Hardware
• ESP32-S2-Saola-1
• USB 2.0 cable (Standard-A to Micro-B)
• Computer running Windows, Linux, or macOS
Note: Be sure to use an appropriate USB cable. Some cables are for charging only and do not provide the needed
data lines nor work for programming the boards.
Software Setup Please proceed to Get Started, where Section Installation Step by Step will quickly help you set up
the development environment and then flash an application example into your ESP32-S2-Saola-1.
Espressif Systems 6
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