Wemos D1 Mini Multi-Chip IoT Development Board

Take your IoT and maker projects to the next level with the Wemos D1 Mini Ultimate IoT Development Kit. This compact yet powerful multi-chip board supports ESP32-C2 (ESP8684) and ESP8266 chipsets, making it an incredibly versatile platform for prototyping, home automation, wireless sensor networks, and Arduino-compatible projects.

Designed for hobbyists, engineers, and makers alike, this board packs serious connectivity and processing power into a tiny 31 × 26 mm footprint — perfect for space-constrained builds.

Key Features

Multi-Chip Support: Compatible with ESP32-C2 (ESP8684) and ESP8266 for flexible project options
Dual-Mode Wireless: Integrated Wi-Fi and Bluetooth connectivity for seamless IoT integration
CH340G USB-to-Serial: Reliable USB communication for easy flashing and debugging
Arduino Compatible: Works with the Arduino IDE for fast, straightforward programming
Compact Form Factor: Measures just 31 × 26 mm and weighs approximately 2.6 × 3.1 cm — ideal for embedded projects
SMD Components: Each order includes SMD-equipped board for robust, professional-grade performance
Customizable: Supports custom configurations to suit a wide range of IoT use cases

Specifications

Dimensions: 31 × 26 mm
Chipsets: ESP32-C2 / ESP8684 / ESP8266
Connectivity: Dual-Mode Wi-Fi + Bluetooth
USB Interface: CH340G Serial Chip
IDE Compatibility: Arduino IDE, ESP-IDF
Quantity: 1 piece per order

Perfect For

Home automation and smart device projects
Wireless sensor nodes and data loggers
Arduino-based IoT prototypes
Learning embedded systems and Wi-Fi programming
Low-power IoT edge devices

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Frequently Asked Questions

Q: What chipsets does the Wemos D1 Mini Multi-Chip IoT Dev Board support?

A: This board supports the ESP32-C2 (ESP8684) and ESP8266 chipsets, giving you the flexibility to choose the right wireless microcontroller for your IoT project. Both chipsets offer Wi-Fi connectivity, with the ESP32-C2 also adding Bluetooth support.

Q: Is this board compatible with the Arduino IDE?

A: Yes! The Wemos D1 Mini Multi-Chip IoT Dev Board is fully compatible with the Arduino IDE, making it easy to write, upload, and test your code. Simply install the appropriate board package for ESP8266 or ESP32-C2, and you're ready to start building.

Q: What is the CH340G chip used for on this development board?

A: The CH340G is a USB-to-Serial converter chip that allows your computer to communicate with the board via a standard USB cable. It handles flashing (uploading firmware) and serial monitor debugging, ensuring a smooth and reliable development experience.

Q: How small is this board, and is it suitable for embedded projects?

A: The board measures just 31 × 26 mm, making it one of the more compact development boards available. Its small footprint makes it ideal for space-constrained embedded applications, wearables, and enclosure-based IoT builds.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.