Re: Smart Analog/Digital I/O Expansion and LCD Display for the uBITX. #ubitx #nano #radiuno #firmware

John (vk2eta)

Great idea Tom, as this frees up IO pins on the main Nano for more controls.

I also used a 2nd Arduino as I2C slave for other purposes (SWR and supply voltage measures) but didn't think of connecting the 2nd unit as a display back-pack.

Excellent and very cost effective.

73, John (VK2ETA)

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