Wireless WiFi Bluetooth 2 in 1 Dual Core CPU Module MINI KIT ESP32 Module Development Board Module 100% Compatible with Arudino IDE, Lua and Micropython Designed with ultra-low power technology, it provides all the performance and functions of the ESP32 chip. Pinout provides compatibility with modules developed for the ESP8266, while also providing fast WLAN, enhanced GPIO, Bluetooth capabilities Except for pin DO, all I/O pins have interrupt, PWM, I2C and 1-wire functions. It has a similar pinout to the traditional ESP8266-12F and is therefore compatible with most accessories. color:Blue Material:Plastic + Metal Package Contents: 4 x Development Board Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.