I was unable to get this to work with a Arduino nano Clone with the CH340 usb serial chip.Ī PC typically communicates with an Arduino such as the Uno via a USB cable that enters the board via a chip that does USB - serial conversion to allow use of the microcontroller's serial interface. This technique works since the Arduino Uno REV3 has a chip called the atmega16U2, which is a serial to USB converter, to talk to the computer we use it here to talk to the router. This method uses the Development board's built in USB to RS232 converter and results in 5V signals. That said, this technique worked well for me during for lots of use (hours), with a Linksys E1000 v1 at 3.3v, and an Arduino Uno REV3. Therefore, using the following technique may cause the router, Arduino, or other things, to malfunction or break. Caution: Do this at your own risk, since the Arduino runs at 5v and the serial sometimes is at a different voltage.
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