Pot controlled PWM generator

[Back2Volts]

Changing the rules...  The above price considerations go away...  I could save the cost of the pot by using  CapSense.   Small potentiometers are not cheap.

[Zero999]

Changing the rules...  The above price considerations go away...  I could save the cost of the pot by using  CapSense.   Small potentiometers are not cheap.

Yes, capacitive sensing would be cheaper, at the expense of usability. Not everyone likes capacitive controls. A potentiometer gives a visual indication of the setting, in my opinion, is easier to use.

[Back2Volts]

Changing the rules...  The above price considerations go away...  I could save the cost of the pot by using  CapSense.   Small potentiometers are not cheap.

Yes, capacitive sensing would be cheaper, at the expense of usability. Not everyone likes capacitive controls. A potentiometer gives a visual indication of the setting, in my opinion, is easier to use.

That is a valid point.

[james_s]

Pots are cheap if you only need a few, under a buck for something passable.

I *hate* capacitive touch controls, uhg! They never work well for me, one of the products I worked on used them and I always find myself mashing the panel repeatedly trying to get it to sense my touch.

[Back2Volts]

Pots are cheap if you only need a few, under a buck for something passable.

Unfortunately more like $5 between pot and know in the size I need it

http://www.digikey.com/scripts/DkSearch/dksus.dll?Detail&itemSeq=220496725

http://www.digikey.com/scripts/DkSearch/dksus.dll?Detail&itemSeq=220496325

But still may be worth it for usability