I made a device with micro. in this device user can load some coefficient in micro in step size, for example user can load 1 , 10 , 100 , ... for set coefficient a in y=ax. what is your suggest for a good devise for loading this coefficient?
Keypad is very big in my devise.
Added after 7 minutes:
My friend suggest me volume controller in cosset player, these devises work like an encoder, I think it is good ideas but don’t how do they work?
thanks