( Off-topic, just happened to glance upon this line in the forum feed, the below is a generic reminder;
#define DIV_1 1.0 //note it's 1.0, not 1, to get full floating point accuracy
```Instead of define, consider using 'static const' - in this case, 'static const float DIV_1 = 1.0<B>**<COLOR color="#ff0000">;</COLOR>**</B>'. Even if you did type '1' instead of '1.0', the float type would ensure that any operations with it are done in float. The space within these parentheses is not large enough to contain the pro/con arguments, google 'define vs const' for lots more information (some of which may not apply to Arduino - reader beware). )