The ESP32-S2 Mini, commonly known as the LOLIN S2 Mini, is a compact WiFi development board built around the Espressif ESP32-S2 family and designed for students, makers, IoT prototyping and embedded product testing. It brings a fast 240MHz Xtensa single-core processor, 4MB flash memory and 2MB PSRAM into a small 34.3mm × 25.4mm board footprint, making it suitable for space-constrained projects where a full-size ESP32 board is too large. The board uses a modern USB Type-C connector and supports native USB functionality through the ESP32-S2, which is useful for USB HID, serial programming and advanced embedded applications. With 27 digital I/O pins, 3.3V operating logic, WiFi connectivity, ADC-capable pins and common interfaces such as I2C, SPI and UART, the LOLIN S2 Mini is a strong upgrade path for compact WiFi automation, sensor logging, web-server and MicroPython/Arduino-style experiments. Please note that ESP32-S2 is a WiFi-focused chip and does not include Bluetooth or BLE, unlike some other ESP32 variants. Its combination of small size, Type-C USB, PSRAM and rich GPIO makes it especially useful for engineering students building IoT dashboards, wireless sensor nodes, smart switches and USB-connected embedded devices. This board is a practical choice when you need an ESP32-S2 Mini development board in India with reliable prototyping capability at an affordable price.
CPU: Xtensa single-core, up to 240MHz PSRAM: 2MB Wireless: 2.4GHz WiFi Main Chip: ESP32-S2 family, commonly listed as ESP32-S2FN4R2 on S2 Mini boards Board Size: Approx. 34.3mm × 25.4mm Native USB: Supported by ESP32-S2 Board Model: LOLIN S2 Mini / ESP32-S2 Mini Flash Memory: 4MB Bluetooth/BLE: Not supported on ESP32-S2 USB Connector: USB Type-C Digital I/O Pins: 27 Common Interfaces: GPIO, ADC-capable pins, I2C, SPI, UART Development Support: Arduino ESP32 core, MicroPython and ESP-IDF workflows Operating Logic Voltage: 3.3V
ESP32 / ESP8266 WiFi-BLE Boards