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This modernized UNO R3 board integrates the classic ATmega328 microcontroller with an ESP8266 Wi-Fi chip featuring 8MB flash memory, combining powerful processing with wireless connectivity. Both microcontrollers include onboard LEDs for easy monitoring and support connecting various sensors and modules, making it ideal for IoT and embedded projects. The board provides a seamless development experience with USB programming and firmware updates for both the ATmega328 and ESP8266 via the onboard CH340G USB-serial converter. This versatile solution simplifies the creation of smart, connected devices requiring Arduino UNO compatibility and Wi-Fi in a single compact board.

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