BIP: How do the comparators work?

[c0nnex]

For the BIP SPAD.neXt supports several comparators to evaluate how to act.
Those are:

• Equals ( offset-value matches value exactly)
• Less ( offset-value is smaller than the value )
• LessOrEqual ( offset-value is smaller than or equal to the value )
• Greater ( offset-value is greater than the value )
• GreaterOrEqual ( offset-value is greater than or equal to the value )
• Ignore ( the value will be ignored and not checked )
• Mask ( offset-value is bitwise ANDed with the value, and the result must be equal to the value)
• AnyBitSet ( offset-value is bitwise ANDed with the value, and the result must greater then zero)

For further information about the bitwise AND , please see http://en.wikipedia.org/wiki/Bitwise_operation#AND

When SPAD.neXt recognizes a change in a watched offset it will determine the color to set on the panel in the following order:

1. It will check if any of the configured values matches the offset-value exactly. The comparator has to be set to "Equals", to be included in this check.
1. It will then check all other comparators

Values are always processed in the order OFF->GREEN->YELLOW->RED (Blinking)->RED and stops at the first matching one.
So it might be a bit tricky to get the right result, but it's possible!

Example: (Checking Left Fuel capacity in %)

flleft.PNG (9.81 KiB) Viewed 4689 times

When adding a BIP-Watch to a BitOffset (e.g. Lights) you will not be able to choose a comparator, but have to choose which color the plate shall get when the light is on.

bip_offset_cfg.PNG (6 KiB) Viewed 4689 times