Wemos ESP8266 D1 R2 V2.1.0 WiFi Development Board
The Wemos D1 R2 V2.1.0 is an ESP8266EX-based development board compatible with the Arduino IDE and NodeMCU firmware. It features 11 digital I/O pins, a 3.3V operating voltage, and an onboard switching power supply for flexible 9-12V DC input.
Features
- Powered by the ESP8266EX SoC with integrated Wi-Fi (802.11 b/g/n) and a 32-bit processor for IoT applications.
- Arduino UNO R3 form factor and pinout compatibility, making it easy to use with existing shields and prototyping.
- Onboard 4MB flash memory for storing application code, file systems, and OTA updates.
- Integrated switching voltage regulator accepts 9-12V DC input, providing stable 5V/1A output for powering peripherals.
- 11 digital I/O pins (with interrupt/PWM/I2C/1-Wire support) and 1 analog input pin for sensor integration.
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The Wemos D1 R2 V2.1.0 is a robust Wi-Fi development board built around the Espressif ESP8266EX system-on-chip. It combines the processing power and wireless connectivity of the ESP8266 with the familiar physical layout of the Arduino UNO, offering a seamless transition for makers and developers. The board’s integrated switching power supply enhances its utility in field deployments by allowing direct connection to higher-voltage battery packs or wall adapters.
Designed for rapid IoT prototyping, the board supports programming via the Arduino IDE using the ESP8266 core, as well as NodeMCU’s Lua-based firmware. Its 4MB of flash memory accommodates complex applications and Over-the-Air (OTA) update capabilities. The inclusion of a micro-USB port simplifies both power delivery and serial communication for debugging and firmware flashing.
Additional Information
| Weight | 0.02 kg |
|---|---|
| Dimensions | 6.8 × 5.4 × 1.2 cm |
