Description
Product Overview
The Wemos UNO D1 R32 is a powerful development board that combines the immense capabilities of the ESP-WROOM-32S module with the familiar form factor of an Arduino UNO. This board serves as a direct drop-in replacement for your existing Arduino projects while unlocking the advanced features of the ESP32 platform—namely built-in Wi-Fi 802.11 b/g/n and Bluetooth 4.2 (BLE and Classic) .
What sets this board apart is its perfect compatibility with most Arduino UNO shields. You can stack your existing sensor modules, motor drivers, and display shields directly onto this board without any modifications, leveraging the ESP32’s superior processing power and wireless capabilities . The board features a traditional USB-B port, commonly found on Arduino UNO boards, providing a stable connection for programming and power delivery .
At its core lies the ESP-WROOM-32S module, based on the ESP32 dual-core Xtensa LX6 processor running at up to 240 MHz, with 4 MB of flash memory and 520 KB of SRAM . This provides ample resources for complex IoT applications, web servers, voice recognition, and advanced sensor fusion projects that would overwhelm a standard Arduino.
Whether you are upgrading an existing automation system, building a Wi-Fi enabled data logger, or prototyping a Bluetooth-controlled robot, the Wemos D1 R32 offers a seamless bridge between the simplicity of the Arduino ecosystem and the power of the ESP32.
Key Features
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Arduino UNO Form Factor: Pin-compatible with standard Arduino UNO shields, allowing you to reuse your existing hardware ecosystem .
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ESP-WROOM-32S Module: Built on the ESP32 dual-core Xtensa 32-bit LX6 processor running at up to 240 MHz .
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Integrated Wireless: Supports 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 4.2 (BR/EDR and BLE) for versatile connectivity .
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Sufficient Memory: Features 4 MB flash and 520 KB SRAM for complex applications and web interfaces .
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USB-B Connector: Traditional USB-B port for programming and power, ensuring a secure connection .
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Comprehensive I/O: Provides 14 digital I/O pins, 6 analog input channels (ADC), 2 DAC channels, and standard communication interfaces (UART, SPI, I2C) .
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Wide Power Input: Accepts 5V–12V DC via the DC jack or Vin pin, making it suitable for various power sources .
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Multi-Platform Support: Compatible with Arduino IDE, ESP-IDF, PlatformIO, and MicroPython for flexible development .
Technical Specifications
| Parameter | Operating Value |
|---|---|
| Microcontroller | ESP32-WROOM-32S (ESP32 Dual Core) |
| Processor | Xtensa 32-bit LX6 @ up to 240 MHz |
| Flash Memory | 4 MB |
| SRAM | 520 KB |
| Operating Voltage | 3.3 V (I/O) / 5 V (Input) |
| Power Input (DC Jack/Vin) | 5 V – 12 V (Limit 6–20 V) |
| Digital I/O Pins | 14 |
| Analog Input Pins | 6 (12-bit ADC) |
| DAC Channels | 2 (8-bit) |
| Wi-Fi | 802.11 b/g/n (2.4 GHz) |
| Bluetooth | v4.2 BR/EDR & BLE |
| USB Connector | USB-B |
| Dimensions | Approx. 68 mm × 53 mm |
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