Dear All,
Thank you all for discussion and hints, but there is a few things that I should say...
- If you can remember old reel to reel or tape decks...counter is going slower or faster if you at the beginning or at the end of tape. It means that counter is NOT connected to capstan, because capstan must ensure constant speed for tape traveling for example 4,75 or 9 cm per second. Capstan works independent, but with constant speed. It means that impulses should go from reel motors. they go slower or faster, if you are playing or going FF or REW.
Now...
- If I do some chemistry on motors and can collect impulses (quadrature encoder) - how connect it to Arduino ? Is there any finalised solution?
- How going back with counting in opposite direction?
- Remember that for example Revox HAS real time counter which is not problem to start (simple timer), but how go opposite or FF or REW?
It seems that I have quadrature encoder on reel motor shaft and collect impulses for both directions.
Thank you, regards.
Boris