The ESP32-S2-DevKit-Lipo-USB from Olimex is a highly integrated, low-power, single-core Wi-Fi microcontroller based on the ESP32-S2-WROOM, designed this board to be secure and cost-effective, with high performance and a rich set of IO capabilities. Compared to the ESP32, ESP32-S2 is only single-core and loses Ethernet and Bluetooth connectivity, but has more GPIO pins. The typical use for boards like this is for WiFi-enabled devices. The ESP32-S2-WROOM supports low power modes including deep sleep options that go as low as 20uA, making them last a long time even on mobile power sources. This board is pin-to-pin compatible with Espressif ESP32-Saola-1, but adds a LiPo battery charger and the ability to work on LiPo power when the external power supply is disconnected, allowing handheld applications and increasing availability and reliability. It uses the built-in USB interface and can work as a host and device, even when powered by the LiPo battery. Features * ESP32-S2-WROOM module * RGB LED * User button, Reset button * Micro-USB OTG connector * Can work as a USB host or USB device * Built-in LiPo battery charger * LiPo battery connector * PCB dimensions: (1.9 x 1.1)" (4.8 x 2.8) cm * Operating temperature: -40+85C Resources Documents * Arduino IDE installation guide * Resources web page * ESP32-S2-Devkit-Lipo-USB GPIOs map * ESP32-S2-Saola-1 web page * European Declaration of Conformity * UKCA Declaration of Conformity Hardware * Schematic in PDF format * GitHub Software * Arduino demo code - check the documents section above for the installation guide * ESP-IDF has support for ESP32-S2 Package Contents * 1x ESP32-S2-DevKit-Lipo-USB Development Board (WROOM) https://elecena.pl/product/23769038/olimex-esp32-s2-devkit-lipo-usb-development-board 2023-07-11 https://elecena.pl/product/23769038/olimex-esp32-s2-devkit-lipo-usb-development-board 2023-12-27 https://elecena.pl/product/23769038/olimex-esp32-s2-devkit-lipo-usb-development-board 2024-09-18 https://elecena.pl/product/23769038/olimex-esp32-s2-devkit-lipo-usb-development-board 2024-11-29 https://elecena.pl/product/23769038/olimex-esp32-s2-devkit-lipo-usb-development-board 2024-11-30 https://elecena.pl/product/23769038/olimex-esp32-s2-devkit-lipo-usb-development-board 2025-11-28 https://elecena.pl/product/23769038/olimex-esp32-s2-devkit-lipo-usb-development-board 2025-11-29 https://elecena.pl/product/23769038/olimex-esp32-s2-devkit-lipo-usb-development-board 2026-01-08