[sdiy] Rotary Switch -> illuminated PB w/ multicolor LED?

grant musictechnologiesgroup.com grant at musictechnologiesgroup.com
Fri Feb 11 18:52:37 CET 2022

I haven't found one small enough and even the closest competitors seem 
like $10+ (recent prices).  The Grayhill 56 series is pretty tiny as 
rotary switches go.

The other thing that's nice about a rotary switch versus an electronic 
pushbutton/MCU/LEDs is memory. Not only does the switch already tell you 
what bank you are on as you switch it, but it remembers it when the 
power goes off.  :-)  So that needs to be factored into the MCU probably 
(EEPROM or emulation in flash, but endurance could be an issue).

------ Original Message ------
From: "Mike Beauchamp" <list at mikebeauchamp.com>
To: "synth-diy at synth-diy.org" <synth-diy at synth-diy.org>
Sent: 2/10/2022 3:11:24 PM
Subject: Re: [sdiy] Rotary Switch -> illuminated PB w/ multicolor LED?

>On 2/10/22 11:02, grant musictechnologiesgroup.com wrote:
>>  Speaking of supply chain fun, a really nice *small* SP4T rotary Grayhill
>>  switch has gone from a pricey $10 to $16. So that's well beyond nuts for
>>  most of us I'm sure. Alternatives?  This is for digital control, so I
>>  can work with 2 bits or 1 of 4 some other way.  I'm thinking a
>>  pushbutton with internal multicolor LED and a PIC or ATTINY (assuming
>>  you can buy those?!).
>>  I really like that the switch is both selector and indicator, so that
>>  needs to be replicated.
>What about replacing it with another 4T rotary switch? There's a bunch
>available.. the "open frame" ones are pretty common and so are plastic
>enclosed ones branded Alpha and CK. I used to use some from digikey that
>had a very long shaft (3-4") but was very easy to cut down.
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