The ESP32 S2 Mini LOLIN WiFi IoT Board is a compact and powerful development board based on the ESP32-S2FN4R2 chip, designed for versatile IoT projects, embedded applications, and electronics prototyping. This new version of the popular Wemos D1 Mini offers approximately twice as many GPIO pins, a small form factor, and compatibility with Arduino, MicroPython, and ESP-IDF programming environments. Its built-in Wi-Fi connectivity and flexible GPIO arrangement make it ideal for smart home projects, sensor integration, robotics, and other wireless IoT applications in Bangladesh.

The ESP32-S2 Mini board provides high-speed processing with a 240MHz single-core processor, 4MB flash memory, 2MB PSRAM, and multiple analog and digital interfaces. Its compact design allows use with most D1 Mini shields, while the 2.54mm pin spacing ensures easy prototyping and soldering. With integrated USB-C power input, easy programming, and support for MicroPython and Arduino, the ESP32 S2 Mini is a reliable, ready-to-use solution for hobbyists, engineers, and IoT developers.

Features:

• ESP32-S2FN4R2 based microcontroller with high-speed 240MHz CPU

• Built-in Wi-Fi for IoT and wireless projects

• Compact form factor compatible with D1 Mini shields

• Supports programming in Arduino, MicroPython, and ESP-IDF

• Approximately 2x more GPIO pins than Wemos D1 Mini

• Multiple PWM, ADC, and DAC pins for flexible applications

• USB-C interface for 5V power supply and programming

• Easy prototyping with 2.54mm pin spacing

• Durable PCB with mounting hole for secure installation

• Ideal for IoT devices, smart home automation, sensor projects, and robotics

Specifications:

• Supply Voltage: 3.3V DC (via 3V3 pin) or 5V DC (via USB-C / VBUS pin)

• GPIO Voltage: 3.3V

• Microcontroller: ESP32-S2FN4R2

• Clock Frequency: 240MHz

• Processor Cores: 1

• ROM: 128kB

• SRAM: 320kB

• PSRAM: 2MB

• Flash Memory: 4MB

• Built-in Wi-Fi: Yes

• Number of GPIO Pins: 27

• Number of PWM Pins: 27 (max 8 simultaneously)

• Number of Analog Input Pins (ADC): 18

• Number of Analog Output Pins (DAC): 2

• USB to Serial Converter: Internal in ESP32-S2

• Pin Distance: 2.54mm

• Mounting Hole Diameter: 2mm

• PCB Dimensions: 34.3 x 25.4mm

Package Contents:

• 1x Wemos S2 Mini ESP32-S2 Board

• 1x Male Header Set

• 1x Pinout Sticker

Applications:

• IoT devices and smart home automation

• Sensor networks and data logging projects

• Robotics and automation control

• Wireless communication projects via Wi-Fi

• MicroPython and Arduino prototyping

• Embedded system experiments and development

• Educational electronics projects and workshops

How to Use:

• Connect power via USB-C (5V) or 3V3 pin (3.3V)

• Install Arduino IDE, MicroPython, or ESP-IDF on your computer

• Configure the board in your IDE according to ESP32-S2 settings

• Program the board with desired firmware or scripts

• Connect sensors, actuators, or other modules to GPIO pins

• Upload code and start testing IoT or electronics projects

• Use provided pinout sticker for easy reference during prototyping

Why Choose ESP32 S2 Mini:

• Compact and versatile for small-scale IoT and electronics projects

• High-performance ESP32-S2 processor with Wi-Fi support

• Wide GPIO availability for multiple simultaneous inputs and outputs

• Easy to program with Arduino, MicroPython, or ESP-IDF

• Compatible with existing D1 Mini shields for extended functionality

• Reliable, high-quality board suitable for hobbyists, students, and professionals

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