how to assign voltages using 0-16 hexadecimal numbers

angiey · Mar 29, 2013

Hi all!!
How to assign the voltages[say 7 to 12v] using hexadecimal values,since i'm using pic microcontroller i have already assigned 4 ports as v1,v2,v3 & v4
and initialized different hex values to these port numbers,so when we press any key it should set to the particular voltages.
Kindly give any suggestion regarding this.

Malek Lamari · Mar 29, 2013

Hi,
use an R2R DAC.
http://www.avr-asm-tutorial.net/avr_gra/r2r_buffered.gif

here more clear image:
**broken link removed**
change the values of the resistors to assign the voltages that you wanted

angiey · Apr 1, 2013

Hi,
Thanks for the information,it was really helpful.
Can you give me some hint that how this values can be stored in the program,as i'm using C code,
and for this i'm using if_else statements, it should be programmed in such a way that when we press
some button it should vary[i.e, voltages should vary].
Thanks in advance.

how to assign voltages using 0-16 hexadecimal numbers

angiey

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Malek Lamari

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angiey

angiey

Junior Member level 1

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how to assign voltages using 0-16 hexadecimal numbers

angiey

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Malek Lamari

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angiey

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