Hi people, can anyone tell me where to find an up/down numeric selector to use on Arduino 2560?
What is "an up/down numeric selector "? Some kind of a toggle switch?
Anything suitable here?
Why not? You have not described the function in a way telling me what You really need. Go on.
david_2018:
OP's pictureThumbwheel switch
yes, I did not its name 
I need to select functions from this Thumbwheel switch. For example the first digit is the type of function; the 2nd and 3rd is a porcentual value [0..99] to pass a pwm channel and the last two digits represent the channel nr. It's a led lightning application.
Good! Do what You want from the setting of the dials!
Such switches are usually 4 bit BCD output, so each switch will require 4 digital pins. Or shift registers to allow the Arduino to discover the value of the switch.
Paul
As I remember there are digitaly coded versions too.
Sorry, it's getting late here... I don't know the I/O of the 2560 but I suggest the use multiplexers in case there's not enough of I/O.
If the thumbwheel switch is not a requirement you could get the same effect with an encoder knob and LCD and use much less I/O.
thank you for replies. Some were useful.