2 IN 1 USB-TTL CH340G 32Mb Memory Mega WiFi R3 ATmega2560 ESP8266

The 2-in-1 USB-TTL CH340G 32Mb Memory Mega + WiFi R3 ATmega2560 + ESP8266 Development Board is a hybrid IoT development platform that integrates a full Arduino-Mega-class ATmega2560 microcontroller with an ESP8266 Wi-Fi module, plus 32 Mb of flash memory. It also features a CH340G USB-to-TTL converter for straightforward programming and serial communication via Micro-USB.

 Key Features

• Main MCU: ATmega2560 – compatible with Arduino Mega code and shields.

• Wi-Fi Module: ESP8266 (802.11 b/g/n) for wireless connectivity and IoT applications.

• USB Connection: CH340G USB-to-TTL converter allows easy PC connection for programming and debugging.

• Flash Memory: 32 Mb for ESP8266 storage – ideal for larger Wi-Fi scripts, pages, or OTA updates.

• Selectable Connectivity: DIP switches let you route the USB to either the ATmega2560 or the ESP8266 (for uploading code or serial comms) or both.

• Power: 5 V logic for the ATmega2560 and compatible peripherals; 3.3 V logic for the ESP8266.

• High I/O Count: 54 digital + 16 analog inputs/outputs perfect for extensive sensor nets and actuators.

Typical Uses:
✔ IoT and smart home systems – wireless control of appliances and remote sensors.
✔ Embedded web servers & dashboards – control and monitor via Wi-Fi.
✔ Educational platforms for electronics and networked device learning.
✔ Automation and robotics, requiring lots of I/O and networking.

Note: Because the board mixes 5 V logic (Mega) and 3.3 V logic (ESP8266), make sure any external peripherals match the correct voltage levels.