5V/1024=0.0049 (rounded). That means it's worth it to display max 2.50, there is no better resolution. ( 2.500, 2.505 or 2.495 are all in the same ADC resolution error, last digit should be then absent). Perhaps integrating your OLED library with the format library?
On Tue, Aug 2, 2022 at 1:33 PM flyway38 <[email protected]> wrote: > Hello All, > > New question. > Sorry if asked already. > I need to find the quickest way to convert my ADC value (10bits) into > digits format. > Need to show this result in an Oled Display using my digit fonts in this > format; "X.XXX", where max value to show is 5V, so as an example and > assuming my ADC is reading half voltage (0x0200) it would show on display > "2.500". > Have my code (working ok) here, but wanted to know if there is any better > / faster way to do it; > > CODE: > mmVal = (dword(mVal) * 5 * 1000) / 1024 > vShowValU = mmVal / 1000 > vShowValD = (mmVal - vShowValU * 1000) / 100 > vShowValC = (mmVal - vShowValU * 1000 - vShowValD * 100) / 10 > vShowValM = mmVal - vShowValU * 1000 - vShowValD * 100 - vShowValC * 10 > -- > > > OLED_0in95_rgb_DisplayImage(10,20,byte(vShowValU),fColorH,fColorL,fColorMH,fColorML,20) > > OLED_0in95_rgb_DisplayImage(25,20,10,fColorH,fColorL,fColorMH,fColorML,20) > -- Decimal DOT > OLED_0in95_rgb_DisplayImage(40,20,byte(vShowValD),fColorH,fColorL,fColorMH,fColorML,20) > > > OLED_0in95_rgb_DisplayImage(55,20,byte(vShowValC),fColorH,fColorL,fColorMH,fColorML,20) > > > OLED_0in95_rgb_DisplayImage(70,20,byte(vShowValM),fColorH,fColorL,fColorMH,fColorML,20) > > Thank you all. > Cheers. > > Filipe Santos > > -- > You received this message because you are subscribed to the Google Groups > "jallib" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/jallib/faab018f-fd46-488a-82ba-a898d98c5128n%40googlegroups.com > <https://groups.google.com/d/msgid/jallib/faab018f-fd46-488a-82ba-a898d98c5128n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "jallib" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jallib/CAM%2Bj4qtFO%3D-WOxiTiKGcZn_A7L7NJJ%3DaWE8W9Zvv6h6-mec0-A%40mail.gmail.com.
