Seeeduino Mega 1.23 to 5V power supply

Products & Technology Arduino & Seeeduino
7

You can Solder the 5v to the C8 it just near the USB connector.

5V.jpg
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Easiest way:
Connect your Extern 5V(<2A current) to Highlighted Square Pad, GND to Round Pad.
But note, this application is connect your extern 5V to USB 5V, it may burn your PC USB.

Safe way, but solder needed, do not plug the extern power to the JST connector(6.5~12V DC).

  1. connect extern 5v to the Highlighted pad and LM358 pin 3.
    s5v.jpg
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  2. connect GND to GND.

The LM358 and Si2305 are use to protect the USB while Extern power is plugged.
And need give LM358 pin 3 larger than 3.3v(5v is OK) to isolate USB power to system.

Thanks
Albert