NodeMCU ESP8266 12E CP2102 Board

Specification of Node-MCUOpen-source, Interactive, Programmable, Low cost, Simple, Smart, WI-FI enabled
Arduino-like hardware IO
Integrated TR switch, balun, LNA, power amplifier and matching network
Integrated PLL, regulators, DCXO and power management units
Onboard USB to serial chip to easily program and upload codes from the Arduino IDE
Embeds logic level converter circuits
Has onboard 3.3V regulator to ensure enough power to function as your go-to WiFi chip!
Easy access to the GPIO pins for easy prototyping
ESP-12E Processor
Easy to use breadboard friendly form factor IoT Module:-

It is based on ESP8266, integrates GPIO, PWM, IIC, 1-Wire and ADC all in one board.

Power your development in the fastest way combination with NodeMCU Firmware!

10 GPIO, every GPIO can be PWM, I2C, 1-wire

Features of Node-MCU IoT Module:-

Open-source IoT Platform

Easily Programmable

Low cost & Simple to Implement

WI-FI enabled