EtanSivad wrote:I'm looking for an add on part that I'm not even sure what to call it. Which makes it really hard to google for it.
Basically, I want a knob that can be turned to about 5 or 6 different values. Like a volume knob, but with a finite number of steps not an analog scale.
So, the knob could be set at values 1 through 6, and then I'd read the value with a shell script to control another script I'm running
(The ultimate goal is to make a timelapse box where I can specify the frame rate. So, setting 1 would be 1 frame per second, setting 2 would be 1 frame per minute, etc, etc.). I'm looking for a solution that I can set the exposure time, power up the box, it'll get read by the automation scripts and run from there.
You should simply have 6 separate toggle switches - and for real geek charm, arrange the Pi to read them as a binary number - 64 different speeds - or just 3 toggle switches will give you 8 settings...
Old fashioned rotary switches going out of fashion, I suspect. There's a 6-way one on this page though - http://www.maplin.co.uk/rotary-switches-2417
will give you an idea what to look for.
You'll probably need another separate switch to "enter" the value you set on the rotary switch though... Big Red Button type of thing!