ESP32-WROOM Live Mini Kit – Dual-Core Wi-Fi & Bluetooth Development Board with CH9102 USB Interface (Micro-USB Powered)

SKU: FA1053-6-2
Microcontroller

ESP32-WROOM-32 (Dual-core Xtensa LX6)
Clock Speed

Up to 240 MHz
Wireless

2.4 GHz Wi-Fi (802.11 b/g/n), Bluetooth 4.2
Memory

4MB Flash, 520KB SRAM
Operating Voltage

3.3V (Logic Level)
Input Voltage

5V DC via Micro-USB or VIN pin
USB-Serial Chip

CH9102
USB Connector

Micro-USB
Interface Access

30+ GPIO pins (ADC, DAC, I2C, SPI, UART)
The ESP32-WROOM Live Mini Kit (CH9102 Version) is a compact, reliable development board centered around the powerful ESP32-WROOM-32 module. This “mini” form factor board provides full access to the ESP32’s dual-core processing power, integrated Wi-Fi, and Bluetooth capabilities, utilizing the widely compatible CH9102 USB-to-Serial converter and a traditional Micro-USB port.
Long Description
This board is an excellent choice for developers seeking an economical yet robust solution for IoT prototyping. The use of the efficient CH9102 USB bridge ensures stable programming and debugging across most operating systems. With 4MB of Flash memory, the board supports diverse projects ranging from localized web servers and data logging to secure cloud-based data acquisition and Over-The-Air (OTA) firmware updates. Its small, breadboard-friendly design maximizes prototyping space.
For individual makers, the Mini Kit is an accessible starting point for learning advanced IoT connectivity using the Arduino IDE or MicroPython. For business purchasers, its low cost, reliable components, and compact footprint make it a viable option for integrating into cost-sensitive commercial products, such as smart sensor nodes, industrial controls, or embedded systems.
Key Features
  • Compact & Breadboard-Friendly: Small form factor designed to fit easily onto a standard breadboard without obstructing adjacent pin headers.
  • Cost-Effective & Compatible: Uses the reliable CH9102 USB-to-Serial bridge chip.
  • Dual-Core Performance: Integrated Wi-Fi (2.4GHz) and Bluetooth 4.2 (BLE and Classic) capabilities.
  • Generous Memory: 4MB QSPI Flash memory provides ample space for substantial firmware and data storage.
  • Flexible Power Input: Can be powered via Micro-USB 5V, the 5V (VIN) pin, or directly into the 3.3V pin.
Usage Instructions
  1. Hardware Connection: Connect the board to your development machine using a high-quality Micro-USB data cable.
  2. Driver Installation: Install the CH9102 driver for your operating system.
  3. Software Configuration (Arduino IDE):
    • Add the ESP32 board package via the Boards Manager in the Arduino IDE.
    • Select “ESP32 Dev Module” as your target board under the Tools menu.
    • Ensure the correct COM/Serial Port is selected.
  4. Flashing Code: The board typically handles automatic boot mode selection. Simply click ‘Upload’ in the IDE. If needed, manually hold the BOOT (Flash) button while pressing and releasing the EN (Reset) button to force upload mode.
  5. Prototyping: Plug the board into a breadboard to access all available GPIO pins for connecting sensors and actuators.
Q: Is this board 5V tolerant?

No. The ESP32 chip operates on 3.3V logic levels. Applying 5V directly to any GPIO pin will likely destroy the chip. Use a logic level converter if you need to interface with 5V components.

Q: Why choose the CH9102 version over the CP2104 version?

The CH9102 version is often a more cost-effective option while still offering reliable performance and driver availability across common operating systems.

Q: Can I power this board with a battery?

This board does not include an onboard battery charging circuit or holder. You can power it by supplying a regulated 3.3V to the 3.3V pin or 5V to the VIN pin using an external battery management system.

Q: My upload consistently fails. What should I do?

Ensure you have the correct CH9102 driver installed and are using a data-enabled USB cable. Try manually engaging the BOOT mode (hold BOOT, tap EN/Reset, release BOOT upon upload start) if automatic upload fails.

Q: Does it support MicroPython or NodeMCU Lua?

Yes, the underlying ESP32-WROOM-32 module is compatible with MicroPython, ESP-IDF, and Lua environments. You can flash the corresponding firmware onto the board using standard tools.

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