Digital input GND

[Korenktom]

Hello,

I have a question about the wiring diagram of the Kincony KC868 A32 board. The board has 32 digital inputs, where each group of 8 inputs shares one GND pin.

My question is: Does it matter which GND I use for the signal inputs, or do I need to follow a specific mapping - for example, inputs 1-8 only against the GND designated for that group? Or can I use just one GND pin for all 32 inputs?

Thank you for clarification.

[admin]

all GND in PCB is connected together, so GND pin for all 32 inputs.

[Korenktom]

all GND in PCB is connected together, so GND pin for all 32 inputs.

Thanks you for your answer.