MCP Board Draft 2 & 3

Date: Aug 20, 2019

Made a couple versions of my MCP board. One holds 2 MCP23017, the other holds 4. The 4 chip version will make it so I only need 2 of them, but the extra wiring involved might make the 2 chip version more appealing. Easier to wire up, test and might make it easier to find where to put the circuit boards on the chess board.

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