ITEM NAME:1PCS Wemos D1 R2 V2.1 nodeMCU meets meets ESP8266 WiFi - ArduinoSEAU Features: DC 5V-12V 1 analog input(3.2V max input) a Micro USB connection Compatible with For Arduino D1 R32=WiFi+Bluetooth+UNO Package included: 1 x ESP32 WiFi + Bluetooth Board 4MB Flash UNO D1 R32.D1 R32=WiFi+Bluetooth+UNO. 1 x ESP32 WiFi + Bluetooth Board 4MB Flash UNO D1 R32. a Micro USB connection. 1 analog input(3.2V max input).