LOLIN ESP32-S2 Mini Wi-Fi IoT Board | 4MB Flash 2MB PSRAM

The LOLIN ESP32-S2 Mini V1 Wi-Fi IoT Development Board is a compact, powerful microcontroller board built on the ESP32-S2FN4R2 chip. With 4MB Flash and 2MB PSRAM onboard, it delivers impressive performance in a tiny footprint — making it the go-to choice for hobbyists, makers, and engineers building smart, connected projects.

Whether you're prototyping a home automation system, building a sensor network, or experimenting with MicroPython and Arduino, this board gives you everything you need to get started fast.

Key Features

• Chip: ESP32-S2FN4R2 single-core Xtensa LX7 processor up to 240 MHz
• Memory: 4MB Flash + 2MB PSRAM for robust data handling
• Connectivity: 2.4GHz Wi-Fi (802.11 b/g/n) for seamless IoT integration
• Programming: Fully compatible with MicroPython and Arduino IDE
• Form Factor: Ultra-compact Mini design — perfect for space-constrained builds
• USB: USB-C connector for easy programming and power
• GPIO: Multiple I/O pins supporting UART, SPI, I2C, ADC, DAC, PWM, and more
• Security: Hardware-accelerated encryption for secure IoT deployments
• Low Power: Multiple power modes ideal for battery-powered applications

Who Is It For?

This board is ideal for:

• DIY smart home and home automation projects
• IoT sensor nodes and data loggers
• Wearable electronics and compact embedded systems
• Students and educators learning embedded programming
• Prototyping Wi-Fi-enabled devices with MicroPython or Arduino

Specifications

Learn More About IoT Development

For best practices in building connected IoT devices and embedded systems, visit the NIST Cybersecurity for IoT Program for guidance on secure IoT development.

Frequently Asked Questions

Q: What is the LOLIN ESP32-S2 Mini V1 IoT development board?

A: The LOLIN ESP32-S2 Mini V1 is a compact Wi-Fi-enabled microcontroller development board based on the ESP32-S2FN4R2 chip. It features 4MB Flash and 2MB PSRAM, and is compatible with both MicroPython and Arduino, making it perfect for IoT, home automation, and embedded electronics projects.

Q: Is the ESP32-S2 Mini compatible with Arduino IDE and MicroPython?

A: Yes! The LOLIN ESP32-S2 Mini V1 is fully compatible with the Arduino IDE and MicroPython, allowing beginners and experienced developers alike to write and upload code quickly and easily. It also supports Espressif's native ESP-IDF framework for advanced users.

Q: What can I build with the ESP32-S2 Mini board?

A: You can build a wide range of projects including Wi-Fi IoT sensor nodes, smart home controllers, data loggers, wearable devices, and wireless communication modules. The onboard 2MB PSRAM and 4MB Flash give you ample memory for complex applications.

Q: Does the ESP32-S2 Mini board support low-power operation?

A: Yes. The ESP32-S2 chip supports multiple power-saving modes including deep sleep, light sleep, and modem sleep — making it well-suited for battery-powered IoT devices that need to conserve energy between tasks.