NodeMCU is an open source networking platform. It uses Lua scripting language programming. Allows developers to deal with the underlying hardware in a manner similar to For Arduino, so that software developers can easily operate hardware devices.
Small and Handy module.
The spacing between mounting headers is 25.5 mm.
It uses Lua scripting language programming.
Lead-out all the IO ports of the ESP-12E development board
Lead out the pins of 5V and 3.3V power supply
Convenient to connect with peripheral modules
Onboard 5V / 1A DC-DC step-down converter circuit
Onboard power indicator
USB power output only for NodeMCU v3