5V 8 relay module
hello!
i trying connnect 16 buttons 2 5v 8 relay modules on 5v 6a power supply.
i have connected +5 vcc in far left pin/ ground gnd far right pin , use gnd send singal.
the problem have can have active 3 replys, if try close more 3 relays nothing happens.
i have wire running prox 20 metres 5v @ end of line.
* if can have other 5v power supply close relays used power 10 arduino nano.
i trying connnect 16 buttons 2 5v 8 relay modules on 5v 6a power supply.
i have connected +5 vcc in far left pin/ ground gnd far right pin , use gnd send singal.
the problem have can have active 3 replys, if try close more 3 relays nothing happens.
i have wire running prox 20 metres 5v @ end of line.
* if can have other 5v power supply close relays used power 10 arduino nano.
what size of 20m of wire?
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