Hi all
I once read an article on how potentiometers
are replaced in todays electronic, by digatal
ways.... Does this ring a bell for anyone?
WBR
Sonnich
petrus said:
Ever seen a potentiometer in a remote control?
In todays monitors? In a mobile phone?
An MP3 player?
petrus bitbyter
Still very common in amplified speaker sets
to use with computers or MP3 players.
Cheap alarm clock radios still use pots.
Google on "digital potentiometer".
I just got got "About 1,540,000 results".
Most of the chips for that are just over a buck.
Some of those are for rotary controls
but some others are for up/down buttons.
Some of these chips appear to be made
to drop in place of variable resistors,
while some others seem to be integrated
into amplifiers.
If you've already got a uC it can be
done without such a chip using two
input lines w/ buttons.
Expect production levels of carbon
potentiometers to stabilize at a
very low level (specialty item)
because of fewer uses.
One big plus is that lots of these
digital potentiometers work with
remote control input.