Adding LED feedback per program

[eonz]

So I just finished building the Arachnid and been thinking of ways to show what program I'm on with the rotary switch.
I've seen several ideas but landed on individual LED's per program change.

Has anyone got info on where to connect the LED's ?


Thanks in advance!

 

[phi1]

You mean have 8 LEDs (one for each program)? I *think* you could do that by tacking wires on to each of the 8 perimeter pins of the rotary switch, each wire leading to an LED anode. All the LED cathodes could be tied together and have a resistor to ground. Or they could each have their own resistor for independent brightness control. 3.3v isn’t a lot of voltage to work with, so blue led might not work, but red should be fine, you can experiment with other colors. Resistor value will set the brightness, maybe start at 1kohm. Test with alligator clips before committing to anything.

I attached a very rough sketch of what I described above.

i’m struggling to see the practical benefit. You can label the positions around the knob and the knob pointer would show which one it’s pointing to, unless you need to adjust it in the dark. But, if it’s just about a unique aesthetic, I love seeing that too!

 

[eonz]

Thanks for the response!
Yea this is what i was thinking as well but wanted to see if anyone had attempted this with success.

And don't struggle to much on understanding the practicality of why I want to add LED per program, I have what some call, studio OCD...