Is it possible to powerup the ethermega/Eleven via 12V at Vin/Gnd and still output data via the USB to serial monitor - it doesn't look like it as there is no serial port seen when using external power.
I would like to send data out to the PC via serial but powerup usingVin/Gnd.
I don't want to use the PC usb to powerup the board.
Combining the power of the ATmega2560 MCU with onboard Ethernet, a microSD card slot, an efficient switchmode power supply, and a small prototyping area. [Product page]
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Is this a change? Works on my etherMega's...