It has been a long time since I’ve used that chip But I’m pretty sure you only need 3 pins It is a serial chip. And you may get by with using two of those pins But there will be no updating of the display
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Re: Re-using pins while still connected to MAX7219 ?
It has been a long time since I’ve used that chip But I’m pretty sure you only need 3 pins It is a serial chip. And you may get by with using two of those pins But there will be no updating of the display
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