ITEM NAME:ESP-12E ESP8266 UART WIFI wireless shield for arduino OZ Using 3.3V power chip (the same as the power chip of the official CC3000 expansion board), make the 3.3V provided in. board more precise, and make ESP8266 work as well as the official cc3000 chip, no gap. A WiFi module power supply/maintenance interface is introduced to facilitate developers to expand power supply and maintenance. On-board ESP8266-12 industrial stable serial WiFi module, using enhanced PCB antenna, the signal is better. The operation mode of ESP8266-12 industrial stable WiFi module (such as operation mode and upgrade mode) can be switched quickly by dial switch, the serial chip can be integrated, and the firmware can be switched quickly. Built-in 5V to 3.3V TTL level converter prevents high voltage. TTL level from harming WiFi module. (General modules are not available) The on-board ESP8266-12 industrial stable WiFi module has a metal shield and strong anti-interference. All interfaces of industrial stable WiFi module ESP8266-12 on board are introduced with standard spacing, which is convenient for developers to develop in depth. This product can be applied to: Remote control electronics/models/four-axis aircraft, etc. Providing networking services for non-smart devices Household Temperature/Humidity/PM2.5 Display, etc..Board more precise, and make ESP8266 work as well as the official cc3000 chip, no gap. On-board ESP8266-12 industrial stable serial WiFi module, using enhanced PCB antenna, the signal is better. The operation mode of ESP8266-12 industrial stable WiFi module (such as operation mode and upgrade mode) can be switched quickly by dial switch, the serial chip can be integrated, and the firmware can be switched quickly.