PBasic Question. Please Help!

koolitude

The following statement was used to display the compass bearing obtained from a digital compass.

DEBUG· 2,0,1, "Compass Bearing (0-359 Degrees ", DEC3 I2cData/10

This does work. But my question is how can·I store the value of (DEC3 I2cData/10)·for further manipulation?

I wanna write a program such that when the bearing = certain degree then do something else.

I tried to declare another variable to store the value:
Bearing VAR·Word
Bearing = DEC3 I2cData/10

Then I got an error message:
Expected a constant, variable, unary operator, or '('

and the code DEC3 was highlighted:
Bearing = DEC3 I2cData/10

Please Help! Thanks you very much!
·

Larry

you'll need to post the rest of your code. It probably has to do with either an if- then or case statement, or how you read the compass.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔

Bruce Bates

koolitude -

Right idea, but the wrong syntax. Try this:

Bearing VAR Word

Then after the bearing is fetched
:
Bearing = I2cData

That's all there is to it. After that, it's just a matter of checking Bearing for whatever value you need to check, like these examples:

IF Bearing > 180 AND Bearing < 270 THEN GOTO SomeLabel 'One line format

or

IF Bearing < 90 OR Bearing > 180 THEN· 'Multi-line format:

· Count = Count + 1
· Flag = 1

ELSE

· Count = Count -1
· Flag = 0

etc.

Regards,

Bruce Bates

koolitude

Thank you, Larry!

Thank you Bruce! I can now compile the program~ so... the problem was adding DEC3 in front of I2cData, right?

DEC3 is only used for formatting in the debug windows? am I right?

Mike Green

DEC3 (and the other formatting prefixes) are used in input/output statements like DEBUG. Look in the PBasic manual under SERIN/SEROUT.

Chris Savage

To elaborate a bit on Mike’s reply, those affect serial data, so they can be used in commands like DEBUG and SERIN/SEROUT to convert the binary value into an ASCII string. Take care.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Chris Savage
Parallax Tech Support