I saw the controller board of an immergas fan coil (hydrofs something) and it has an uart port the manual dosen’t say anything about it. Anybody know what it is used for / can be used? I don't have the gear to connect anything to that port right now. It's a standard 5v, tx, rx, gnd port (at least thay wrote that to the board).
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from hacking: security in practice https://ift.tt/nbX1Cc8
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