Wifi Networking Based Board:

Features:
100% Original and Good Quality with Free After-sale Warranty.
ESP8266 Module: 1 pcs CCL & 1 pcs Metal
ESP8266 is a highly integrated chip designed for the needs of a new connected world.
NodeMCU, is an open source networking platform.
It uses Lua scripting language programming
ESP8266 has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors and other application.
Specific devices through its GPIOs with minimal development up-front and minimal loading during runtime.
Specifications:
Color:black
Material:CCL
Size:6*6cm
Metal ESP8266 Module:
Type:ESP8266.
Wireless standards: 802.11 b / g / n.
Frequency range: 2.4GHz-2.5GHz (2400M-2483.5M).
Data interface: UART / HSPI / I2C / I2S / Ir Remote Contorl GPIO / PWM.
Operating voltage: 3.0 ~ 3.6V (recommendation 3.3V).
Working Current: Average: 80mA.
Operating temperature: -40 Celsius ~ 125 Celsius
Storage temperature: Nomal temperature.
Material: Metal
Size: 11.4 x 6.8 x 0.4cm
Package Included:2 * ESP8266 ModuleNote:
Light shooting 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.

WARRANTY

We'll refund your money if the item hasn't been delivered within 40 days after purchase. You have 2 weeks to request a refund — until day 60.
Product doesn't match the description? Contact us within 30 days after you receive it!
In case of cancellation, money will be refunded to your account within 3 days.