Two MAX7219 with common Iset resistor

[Paul_B]

@sorcky1

When I disconnect 7-segment display from one IC, another one doesn't change brightness visually.

Whether the display itself is connected or not is entirely irrelevant. It is a matter of whether the resistor is connected.

@sorcky1

I would agree that Rset value probably should be lower in my case to get same result as if I had two Rset resistors.

But not lower than the minimum specified 10k value.