• The need for 7bits comes from the IEC61107 specification. I was trying to port some code to read data from an Ultraheat 2WR5 energy meter into JS. As far as I remember, the standard it uses 2 stop bits. So the hack mentioned in the forum might be possible. I will make some minor modifications to the UARTinfo struct to add support for mode selection. If it work as expected I will do a pull request. Any preferences from you Gordon? char[4] with content like "7e2", "8n1", "8e1" etc? Or should we ignore mode select from mainline?

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