I've seen projects where a couple of analog meters are used to display the time. The meter markings are redone and its a cool looking workshop clock.
I have searched and searched here and generally on the internet and can't seem to find anything about how to control the voltage to a panel meter with a microcontroller.
One idea I came up with was to use a digital potentiometer as part of a voltage divider - control the pot and you control the voltage the meter sees.
The other idea I had was using PWM, but I'm not sure how an analog meter would react to, say, a 1Khz pulse slamming it - or whether it would react at all!
Anyone have any ideas on how this is generally done?
Thanks,
Andy
I have searched and searched here and generally on the internet and can't seem to find anything about how to control the voltage to a panel meter with a microcontroller.
One idea I came up with was to use a digital potentiometer as part of a voltage divider - control the pot and you control the voltage the meter sees.
The other idea I had was using PWM, but I'm not sure how an analog meter would react to, say, a 1Khz pulse slamming it - or whether it would react at all!
Anyone have any ideas on how this is generally done?
Thanks,
Andy