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NODEMCU
An Open Source IOT Platform

NODEMCU | Overview
? The NodeMcu is an open-source firmware and development kit that helps you to Prototype your IOT product within
a few Lua script lines.
? Power:
? Input Voltage : 3.3V
? DC Current : 250mA
? Memory:
? RAM 32Kb
? DRAM 80Kb
? Flash 200Kb

NODEMCU | What is it?
? An Arduino-like device
? Main component: ESP8266
? With programmable pins
? And built-in wifi
? Power via USB
? Low cost
The NodeMCU (Node MicroController Unit) is an open source software and hardware development environment
that is built around a very inexpensive System-on-a-Chip (SoC) called the ESP8266.

NODEMCU | What you can do with it?
? Program it via C or LUA
? Access it via wifi (ex. HTTP)
? Connect pins to any device (in or out)

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NODEMCU | MAIN COMPONENT

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NODEMCU | PIN DESCRIPTION

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NODEMCU | ESP8266
? ESP8266 is a highly integrated chip designed for the needs of a new connected world.
? It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to
offload all Wi-Fi networking functions from another application processor.
? ESP8266 has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors
specific devices through its GPIOs with minimal development up-front and minimal loading during runtime.

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NODEMCU | ESP8266 PINOUT

NODEMCU | Features
? Open-source
? Interactive
? Programmable
? Low cost
? Simple
? Smart
? WI-FI enabled

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NODEMCU | Features
? I/O Pins:
? Digital Pins: Pin D0 �C Pin D10 Digital Pins
? PWM Pins : 12 PWM Pins
? Analog Pins : Pin A0
? Power PINS
? Ground : 5 Pins
? 3.3V : 3
? Vin Pin : 1 Adding external supply of +5V (is not connected to USB)

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NODEMCU | Specifications
The Development Kit based on ESP8266, integrates GPIO, PWM, IIC, 1-Wire and ADC all in one board. USB-TTL included, plug&play
? 10 GPIO, every GPIO can be PWM, I2C, 1-wire
? USB-TTL included, plug & play
? PCB antenna

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NODEMCU | Getting started
? Install the Arduino IDE: https://www.Arduino.cc/en/Main/Software
? Install the ESP8266 Addon
? Go!

Sample code led blink
void setup()
{
pin Mode(13, OUTPUT); // initialize digital pin 13 as an output.
}
void loop() // the loop function runs over and over again forever.
{
digital Write(13, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(13, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}

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