Re: Protoneer Nano-Arm #ubitx



perhaps use an I2C I/O expander chip and maybe an optional voltage level converter chip on the board with the Si5351a, this way only an I2C interface is needed from the microcontroller chip. so long as we're making boards might as well have solder pads for more I2C chips or SMT proto board pads. 

-Justin N2TOH 

P.S. where can I find a known good copy of the uBITX firmware? everything I'm tried so far has compile time errors that prevent me from proceeding. 

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