Build connected projects with the WeMos D1 R2 WiFi Uno-style Development Board, based on the ESP8266EX and designed for Arduino IDE and NodeMCU-compatible applications. With 11 digital I/O pins, 1 analog input, built-in WiFi, and OTA wireless programming support, this board provides a flexible platform for IoT devices, smart home projects, sensors, automation, and DIY electronics. The V2.1.0 design also features an optimized circuit and BRT bias resistor transistor for easier flash-mode access and improved system stability. Its Uno-style format makes it a convenient choice for makers familiar with Arduino development.
