Looking for Wifi R3 Atmega2560? Mega +WiFi R3 Atmega2560+NodeMCU ESP8266 32Mb Memory USB-TTL CH340G Compatible For Arduino Mega is available at Zbotic with fast shipping across India.
Product Description:
This board is a custom version of the classic ARDUINO MEGA R3 board that integrates an Atmel ATmega2560 microcontroller, an ESP8266 Wi-Fi IC with 32 Mb (megabits) of flash memory, and a CH340G USB-TTL converter on one board. All of these modules can work together or separately, and each has its own pinout headers. This board is ideal for developing new projects that require both Uno and WiFi. You can update sketches and firmware for both ATmega328 and ESP8266 via USB.
This board has a DIP-switch that allows you to connect the modules in different ways. For example, you can connect USB and ATmega2560, USB and ESP8266, or ATmega2560 and ESP8266. The board uses the CH340G USB-serial converter for easy communication with your computer.
The operating mode is selected by means of DIP switches on-board:
Switch status and model selection:
| Connection↓/Switch No.→ | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| CH340 connect to ESP8266 (upload sketch) | OFF | OFF | OFF | OFF | ON | ON | ON | NoUSE |
| CH340 connect to ESP8266 (connect) | OFF | OFF | OFF | OFF | ON | ON | OFF | NoUSE |
| CH340 connect to ATmega2560 (upload sketch) | OFF | OFF | ON | ON | OFF | OFF | OFF | NoUSE |
| CH340 connect to Mega2560 COM3 connect to ESP8266 | ON | ON | ON | ON | OFF | OFF | OFF | NoUSE |
| Mega2560 ESP8266 | ON | ON | OFF | OFF | OFF | OFF | OFF | NoUSE |
| All modules work independently | OFF | OFF | OFF | OFF | OFF | OFF | OFF | NoUSE |
Also, have the switch to change of connecting port between ATmega2560 and ESP8266
After choosing the mode of the board can proceed to set up the IDE
It is important that when the ESP8266 module is programming, it is necessary to press the button “Mode”
Download the Attachment for more details.
Specification:
| Length (mm): | 106 |
|---|---|
| Width (mm) | 53.5 |
| Height (mm) | 12 |
| Weight (g): | 40 |
| Shipping Weight | 0.043 kg |
| Shipping Dimensions | 12 × 8 × 5 cm |
Package Includes:
1 x Mega WiFi R3 Atmega2560 NodeMCU ESP8266 Compatible For Arduino Mega.
Mega +WiFi R3 Atmega2560+NodeMCU ESP8266 32Mb Memory Overview
The Mega +WiFi R3 combines the Atmel ATmega2560 microcontroller and an ESP8266 Wi-Fi IC with 32 Mb of flash memory on one board, alongside a CH340G USB-TTL converter. Ideal for projects that need the extensive I/O of an Arduino Mega and built-in Wi-Fi connectivity, this board lets you develop and upload firmware to both modules via a single USB connection.
Key Features of Mega +WiFi R3 Atmega2560+NodeMCU ESP8266 32Mb Memory
- Atmel ATmega2560 MCU with 54 digital I/O pins and 16 analog inputs
- Integrated ESP8266 NodeMCU Wi-Fi module with 32 Mb (megabits) flash memory
- CH340G USB-TTL converter for seamless USB programming of both modules
- DIP-switch routing allows independent or combined operation of ATmega2560 and ESP8266
- Separate pinout headers for easy wiring of sensors, actuators, and shields
- Genuine product, fast shipping from Zbotic across India
Applications and Use Cases
- IoT gateway collecting sensor data and transmitting over Wi-Fi
- Home automation controllers with multiple relays and web interface
- Robotics projects requiring numerous motor drivers and remote control
- Remote data loggers posting environmental readings to cloud servers
- Mesh sensor nodes leveraging separate MCU and Wi-Fi tasks
How to Use Mega +WiFi R3 Atmega2560+NodeMCU ESP8266 32Mb Memory
Connect the board to your PC via a micro-USB cable; use the DIP-switch to select which module (ATmega2560 or ESP8266) is connected to the CH340G USB-TTL interface. In the Arduino IDE, choose “Arduino Mega 2560” or “NodeMCU 1.0 (ESP-12E)” as your board, upload your sketch or firmware, then wire sensors and actuators to the corresponding headers for your application.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
How do I program the ATmega2560 and ESP8266 modules?
Use the DIP-switch to route the USB-TTL lines to either the ATmega2560 or the ESP8266. In the Arduino IDE, select the corresponding board type, connect via USB, and upload your code normally to each module.
What is the actual flash memory capacity on the ESP8266?
The onboard ESP8266 NodeMCU module features 32 Mb (megabits) of SPI flash memory, used for storing firmware, web assets, or data logs.
Can I use both modules simultaneously in a single project?
Yes, by configuring the DIP-switch you can enable UART pass-through between ATmega2560 and ESP8266, allowing the microcontroller to offload Wi-Fi tasks to the ESP module while sharing sensor and control interfaces.
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Read More →Technical Specifications
| Brand | Arduino |
|---|---|
| Interface / Protocol | USB, WiFi, BLE |
| SKU | AI2756 |
| Weight | 0.05 kg |
| Availability | Out of Stock |
Applications & Use Cases
The Mega +WiFi R3 Atmega2560+NodeMCU ESP8266 32Mb Memory USB-TTL CH340G Compatible For Arduino Mega is a versatile boards compatible with arduino used across a wide range of applications including electronics learning, robotics, home automation, sensor interfacing, and motor control.
Common use cases:
- Learning programming and electronics
- Building a line-following robot
- Creating a home automation hub
This product is ideal for students, hobbyists, and electronics beginners.
Technical Tip: Arduino Uno is the standard learning board. Mega offers more pins for complex projects. Nano suits breadboard prototyping.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine Arduino product sourced from authorized channels
