The NodeMCU controller is an open-source development board based on the ESP8266 Wi-Fi module, designed for building IoT applications using the Lua scripting language. It offers features like integrated Wi-Fi connectivity, GPIO pins for peripherals, and compatibility with popular platforms, making it a cost-effective and compact solution for various applications such as home automation and industrial monitoring. However, it has limitations including voltage tolerance and current draw specifications for GPIO pins.

1. NODE MCU CONTROLLER
BY:
MUTHU SELVAM

2. What is Node MCU controller?
 Previous presentation we learnt about Arduino UNO’s
applications and its advantages.
 Basically we use Ardiuno and microcontroller because it
can works automatically.
 An open source development board based on the
ESP8266 Wifi module. Featuring the micro controller
 It provides the feature of developing IOT applications
using Lua scripting language.
 With compact size, low power consumption and
extensive community support.It is a versatile solution for
building advanced IOT systems.

3. Components:

4. Key feartures:
 IntegratedWifi connectivity for seamless IOT
communications.
 Lua scripting language for rapid prototyping
and development.
 GPIO pins for connecting sensors,acutators
and other peripherals.
 Compatibility with popular IOT platforms like
Arduino and Raspberry Pi.
 OTA firmware updates for remote device
management.

5. Benefits and Advantages:
 Cost-effective solutions compared to
traditional microcontrollers.
 Easy to program and Lua scripting language.
 Integration with popular IOT platforms and
frameworks.It is breadboard friendly and
compact.
 Compact size and low power consumption.
 Flexible and coustamizable for a wide range
of IOT applications.

6. Applications:
The node MCU controller finds applications in
various industries including
• Home automation and smart devices.
• Industrial monitoring and control systems.
• Environmental sensing and data logging.
• Agriculture and farming automation.
• Smart cities and infrastructure management.

7. Comparing Arduino Nano and node
MCU
Arduino Nano:
a)32kb flash memory ,16MHz clock ,8kb
SRAM
b)mini-B USB connector.
c)No wireless pheripherals and it has 8 bit
microcontroller.
Node MCU:
a)4mb of flash memory,80MHz clock,50kb
RAM
b)micro-B USB connector,On boardWifi
connectivity 32 bit microcontroller.

8. Limitations:
 The pins are not 5V tolerant ,applying more
than 3.6Von any pin will kill the chip.
 The maximum current drawn from the single
GPIO pin is 12mA.