On Mon, Dec 02, 2002 at 08:19:12AM -0800, Friedel Bruening wrote:
> Elbert,
> in this case the LM317 is possibly the ideal solution, it�s cheap and you
> can get it where ever I believe.
Switching to different voltages with 3 different resistors and 3 NPN's
(and 3 port pins at you uC) or use a I2C or SPI controlled resistor.
Matthias
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Author: Matthias Weingart
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