ESP32-S2 Saola 1R Dev Kit featuring ESP32-S2 WROVER

The ESP32-S2 Saola-1 (WROVER) is a compact development board featuring the ESP32-S2 with 8MB Flash and 2MB PSRAM. It breaks out nearly all I/O pins for easy prototyping, includes CP210x USB-to-serial for programming, and offers a second USB port for native connectivity.

ESP32-S2 Saola-1 is a small-sized ESP32-S2 based development board produced by Espressif. Just about all the I/O pins are broken out to the pin headers on both sides for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-S2 Saola-1 on a breadboard - we recommend two breadboards 'side-by-side' since the Saola is a bit wide, and you won't have extra holes on one side for wiring. This particular Saola comes with a WROVER module, which has 8 MB of Flash and 2 MB (16 Mbit) PSRAM mounted for a roomy development environment! One micro USB connector on the Saola is wired through a CP210x USB to serial converter chip for debugging and programming. The native USB is available on a second micro USB connector. We do have CircuitPython support for this board! And Espressif provides Arduino IDE support too. Espressif ESP32-S2 supports ESP-IDF version v4.2 and higher. You’ll find information to get started with ESP32-S2-Saola-1 board and hardware documentation (e.g. schematics) in Espressif’s Documentation website.

Specifications

* ESP32-S2-WROVER modules with 8 MB Flash and 2 MB PSRAM

* USB – 2x Micro USB port for native USB + power and programming / debugging via USB-to-UART bridge

* Expansion – 2x 20-pin I/O headers with SPI, I2S, UART, I2C, touch sensors, PWM, etc…

* Misc – Boot and reset buttons, NeoPixel- compatible RGB LED, 3.3V power on LED

* Power Supply (3 methods)

* 5V via Micro USB port (default)

* 5V and GND header pins

* 3V3 and GND header pins

Package Contents

* 1x ESP32-S2 Saola 1R Dev Kit featuring ESP32-S2 WROVER

Resources

* CircuitPython support for this board

Revision History

* As of Oct 10th, 2025 – The PCB has been updated to have two micro USB's and "N8R2" version of the module.