> How can I pack several pieces of information into one variable?
Binary --> Decimal conversion technique would allow three on/off settings to be
stored in a decimal number valued 0-7. Switch one has a value of 1. Switch
two has a value of 2. Switch three has a value of 4. Add up the three and
send the results as a single digit. Because each successive switch is assigned
a successively higher power of two, the results will be unique (no single value
can represent more than one possible combination of off and on switches.)
Or, combine two three-position switches. With switch one in position A, switch
two values are A=0, B=1, C=2. With switch one in position B, switch two values
are A=3, B=4, C=5. With switch one in position C, switch two values are A=6,
B=7, C=8. Again, each value has only one possible set of positions.
Or combine an on-off switch with a five-position selector.
Any combination of variables with ten or fewer possible unique combinations
would work.
Cheers,
-R.
Robert M. Shearman, Jr.
Transit Operations Supervisor,
University of Maryland Department of Transportation
also known as [EMAIL PROTECTED]
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