I am now ready to make the next step in the project that will use RS-485 boards. On eBay I found three options: (shield style will not work as Micro, Pro Mini, or Nano may be used) Sparkfun Board [Sparkfun 485.jpg] Basic RS-485 Board [Basic 485.jpg] Enhanced RS-485 Board [Enhanced 485.jpg] …

RS-485 Board Options

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