Re: Voltage regulation circuit 12V to 5V in 5A range
Originally Posted by richard
that seems a strange way to control the contrast. ...
Sorry, contrast is hardwired to prevent the user from burning out the LCD. It's the backlight that's PWMed.
Backlight is controlled by PWM from a 2N2907A because it controls the 4 physical LCDs simultaneously as well as the radio in-game via USB:
My Creality Ender 3 S1 Plus is a giant paperweight that can't even be used as a boat anchor, cause I'd be fined for polluting our waterways with electronic devices.
Not as dumb as yesterday, but stupider than tomorrow!
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