Leon wrote:Hi Dmitri
I just want to check something with you on my optical hi hat foot controller. I build my own pedal, and when I block the light of from the photo transistor, the more I block it of the more the LED that shines is fading, is that correct??
The problem this caused is that when all the light is blocked of, it takes a while for the bright LED to come on again, with result in a delay in opening the hi hat.
Forget that and go for the hall effect sensor solution. Much simpler to accomplish and it works great as it emulates all positions between fully pressed and fully unpressed.