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Jason Hsu wrote:
> I have used PIC microcontrollers that measure the voltage of a signal
> at a particular instant in time with an A/D converter that converts
> the value into 0-255 (8-bit) or 0-1023 (10-bit).
> 
> What PIC microcontrollers do the opposite - convert a value (0-255 or
> 0-1023) into a 0-5V voltage output?  What examples of completed
> projects that use the D/A are there?
> 

Selecting the "DAC" option in the Microchip "MAPS" tool (which I highly
recommend over the web based chip selection system) lists 6 of the
dsPIC33F devices that have a true hardware DAC.

As Steve suggested, a CCP module with a lowpass filter will work in many
situations. Other options are bit-banged PWM--again with a lowpass
filter--or an external DAC chip.

- --
Brendan Gillatt | GPG Key: 0xBF6A0D94
brendan {a} brendangillatt (dot) co (dot) uk
http://www.brendangillatt.co.uk
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