Description: A Micro USB connection. D1 R32=WiFi+Bluetooth+UNO. -DC 5 V-12 V 1 analog input (3.2V max input). Compatible with Arduino High performance-price ratio. Small volume, easily embeded to other products. Specification: Material: electronic components Size: 6.5x5.5 cm / 2.55x2.16 inch Package Includes: 1 piece module
