potentiometer precision

mickael

Member
Hi everyone,

I build a midi controler with potentiometer and I when I turn the potentiometer I notice the value (13bit) not change at the begining of the turn but I need 2mm of travel to see the change in the console.

How to remove this dead zone of the pots (at beginning and end of travel pots) ?

The pots used are Bourns 91R1A-R16-A15L and 2 Tocos RV24YN20S B103. All this pots are 10kohm.

To reduce noise I wire a resitor (1kohm) between pots output and teensy analog input and a 100nf capacitor between teensy analog input and AGND. The + and - of pots are wire to 3.3v and AGND respectively.

Can I resolve this problem or it is due to pots not enougth precise ?

thanks
 
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