converting string data to a numeric value

Dgswaner

I'm trying to receive a value from 0-255, convert it to a number between 500-2300 and then use that value to drive the servos.
I know the communication is working, but what I believe to be happening is that it's reading X as a string and not a numeric value, I can't find anything in the manual to convert this to the value. I've used something like VAL(X) in other languages.

the 0-255 is being generated by a HTML page (pink) and needs to be a integer. Here is my code.

PUB Main
    repeat
      x := XB.RX   ' receives a byte of data
      comm.dec(x)   'sends byte to pc 
           
      SERVO.Set(TiltServo,(X * 7) + 500) '500 - 2300
      SERVO.Set(PanServo,(X * 7) + 500) '  500 - 2300
      waitcnt (cnt+140_000)

Is there a way around this? any help would be appreciated.

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"A complex design is the sign of an inferior designer." - Jamie Hyneman, Myth Buster

DGSwaner

stevenmess2004

Yep, you can use the Numbers object to do this. I think that there is a demo. It probably looks a bit daunting but most of that it just a whole heap of constants to make things easy.

Dgswaner

thanks I'll check it out.

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"A complex design is the sign of an inferior designer." - Jamie Hyneman, Myth Buster

DGSwaner

Dgswaner

I've tried for a few days to make since of the Numbers object. Does anyone have example code or some insite into using this object. I would appreciate any help. it looks like it will do what I need it to but I can't get the syntax right.

Thanks

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"A complex design is the sign of an inferior designer." - Jamie Hyneman, Myth Buster

DGSwaner

jazzed

Peter Verkaik's Format.spin object has itoa and atoi functions.
http://obex.parallax.com/objects/230/

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