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Uno+WiFi R3 ATmega328P NodeMCU ESP8266 4MB Memory

₹439.00 (Inclusive of all taxes)
Out of Stock

This Uno+WiFi R3 board integrates an ATmega328P microcontroller with an ESP8266 Wi-Fi module featuring 4MB flash memory, providing a versatile platform for both Arduino-compatible projects and IoT applications. It offers seamless dual-mode operation or independent use of each processor, facilitated by an on-board USB-TTL CH340G converter for easy programming.

Features

  • Dual ATmega328P (Uno R3) and ESP8266 (NodeMCU) integration.
  • On-board 4MB flash memory for ESP8266 applications.
  • Integrated USB-TTL CH340G for simplified programming of both chips.
  • Supports independent or combined operation of both microcontrollers via DIP switches.
  • Standard Arduino UNO R3 form factor for broad shield compatibility.

Out of stock

Description

The Uno+WiFi R3 development board offers a powerful and flexible platform by combining the robust ATmega328P microcontroller, widely known from the Arduino Uno R3, with the popular ESP8266 Wi-Fi module. This integration empowers developers to create projects that leverage the extensive Arduino ecosystem while simultaneously incorporating advanced wireless connectivity for Internet of Things (IoT) applications. The ESP8266 comes with 4MB of flash memory, providing ample space for complex Wi-Fi applications and custom firmware.

Designed for convenience, the board includes an on-board CH340G USB-to-TTL converter, streamlining the programming process for both the ATmega328P and ESP8266 through a single USB connection. A set of DIP switches allows for flexible configuration, enabling the microcontrollers to operate independently or communicate with each other, adapting to various project requirements. This unified design minimizes complexity and component count, making it an ideal choice for rapid prototyping and embedded system development requiring both local control and remote connectivity.

Key Features

  • Integrated USB-TTL CH340G converter for seamless programming
  • USB 5V (500mA max.) power input
  • 5V Logic Level for broad compatibility
  • Operating Supply Voltage: 5V
  • 14 Digital I/O Pins
  • 6 Analog I/O Pins
  • Serial interface type for communication
  • Wide operating temperature range: -40°C to +125°C

Applications

  • IoT sensor nodes and gateways
  • Home automation projects with Wi-Fi connectivity
  • Rapid prototyping of web-connected devices
  • Embedded control systems requiring wireless communication
  • Educational platforms for learning Arduino and ESP8266 programming

Technical Specifications

Chip TypeATmega328P & ESP8266
USB-to-Serial ConverterCH340G
VIN/DC Jack Voltage9V ~ 24V
WiFi Standard802.11 b/g/n 2.4 GHz
USB InterfaceMicro USB
Clock Frequency16 MHz (ATmega328P)
ESP8266 Flash Memory4 MB
Current Consumption800 mA (max)
Length70 mm
Width53.5 mm
Weight25 g

Frequently Asked Questions

What are the main microcontrollers on this Uno+WiFi R3 board?

The board integrates an ATmega328P, compatible with Arduino Uno R3, and an ESP8266 Wi-Fi module with 4MB flash memory. This dual architecture allows for versatile project development, combining traditional microcontroller tasks with modern wireless connectivity for IoT applications.

How is programming handled for both the ATmega328P and ESP8266?

The board features an on-board CH340G USB-to-TTL converter. This allows you to upload sketches and firmware to both the ATmega328P using the Arduino IDE and the ESP8266 using either the Arduino IDE or ESP-IDF, via a single USB connection.

Can the ATmega328P and ESP8266 operate independently or together?

Yes, a set of DIP switches enables configuring the connection between the two microcontrollers. They can operate fully independently, or be configured to communicate with each other, sharing data or controlling peripherals as required by your application's logic.

What are the power requirements for the Uno+WiFi R3 board?

The board can be powered via its Micro USB port (5V DC, max 500mA) or through the VIN/DC Jack, which accepts an input voltage range of 9V to 24V. Ensure a stable power supply for reliable operation of both integrated chips.

Package Includes

  • 1 x Uno+WiFi R3 ATmega328P+NodeMCU ESP8266 4MB Memory Development Board

Additional Information

Weight 0.025 kg
Dimensions 7 × 5.35 cm