Review on 📡 Enhanced Connectivity: WOWOONE 2PCS Wemos D1 Mini Arduino Uno WiFi Shield for ESP8266 ESP-12E by Ricky Pee

The board works fine as an ESP-12 board (similar to NodeMCU), but I haven't had much luck using it with Arduino boards (like Adafruit's Motor Shield) or with SPI devices (using the Arduino /ESP8266 library port). However, I managed to get a simple I2C device to work with it. I'm sure I could get other devices to work on it if I program an ESP8266 at a lower level, but that defeats the purpose of "Arduino compatibility". If I wanted to, I could use better and smaller boards. Well, the $8 risk was worth it.