`On Sat, Jul 21, 2018 at 6:43 PM, Andy Shevchenko<andy.shevchenko@gmail.com> wrote:> On Sat, Jul 21, 2018 at 6:36 PM, Himanshu Jha> <himanshujha199640@gmail.com> wrote:>>>> > +   /* Look up table 1 for the possible gas range values */>>> > +   u32 lookupTable1[16] = {2147483647u, 2147483647u, 2147483647u,>>> > +                           2147483647u, 2147483647u, 2126008810u,>>> > +                           2147483647u, 2130303777u, 2147483647u,>>> > +                           2147483647u, 2143188679u, 2136746228u,>>> > +                           2147483647u, 2126008810u, 2147483647u,>>> > +                           2147483647u};>> This one needs perhaps a bit of though, but...>>>> > +   /* Look up table 2 for the possible gas range values */>>> > +   u32 lookupTable2[16] = {4096000000u, 2048000000u, 1024000000u,>>> > +                           512000000u, 255744255u, 127110228u, 64000000u,>>> > +                           32258064u, 16016016u, 8000000u, 4000000u,>>> > +                           2000000u, 1000000u, 500000u, 250000u, 125000u};>> ...this one obviously just a not needed one. You may replace it with a> one constant and simple calculation to get either value (index from> value, or value from index).Indeed this can be reduce to:125.000 << (15 - idx).The real question here is if we approximate 255.744.255u to 256.00.00u howmuch different is the result. Being a gas sensor I think it is veryhard to appreciate.We can go with this formula + adding a comment with the table with theexact coefficients.thanks,Daniel.`