ITEM NAME:Node Mcu ESP8266 V3 Lua CH340 WIFI Internet Development Board Mod Z.ESP8266 has IO Pin. A great set of tools to develop ESP8266. WiFi at 2.4GHz, support WPA / WPA2 security mode. Antenna type: Built-in PCB antenna is available. Remote firmware upgrade (OTA). Power input: 4.5V ~ 9V (10VMAX), USB-powered.
