Arduino Mega +WiFi R3 with ATmega2560 and ESP8266 NodeMCU
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Prices updated: 13 Oct 2026
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About this product
A customized Arduino Mega R3 board that combines an ATmega2560 microcontroller with an ESP8266 Wi-Fi module (NodeMCU), 32 Mb of flash memory and a CH340G USB-to-serial converter on one board. Both processors can work together or independently, which suits Wi-Fi-connected Arduino projects. It is listed as compatible with the Arduino Mega.
Specifications
- Microcontroller
- ATmega2560
- Wi-Fi module
- ESP8266 (NodeMCU)
- Flash memory
- 32 Mb (megabits)
- USB-to-serial converter
- CH340G
- Board standard
- Arduino Mega R3 compatible
Frequently asked questions
Can the ATmega2560 and the ESP8266 be used separately?
Yes. The listing states that all components can be set up to work together or independently. Check the board's documentation for any jumper or serial-routing settings before wiring it to other hardware.
How do I select the target when programming?
Select the appropriate board and port in the Arduino IDE for the ATmega2560 side, and use the ESP8266 board package for the Wi-Fi side. Check the board's documentation for the programming switch or jumper that routes the serial connection.
