[PD] Comport issue: two digits problem

[Jack]

[list-compare] in the list-abs.
It returns 0 or 1.
++

Jack



Le vendredi 11 décembre 2009 à 01:09 +0100, Luca Caridà a écrit :
> Thank you very much martin,
> 
> 
> Adding a "print" to [comport] I see the list of 12 ascii values.
> 
> 
> Having a single [0...255] number from Arduino would be easier and
> probably the best way to go. But I also wish to understand if pure
> data can make the job.
> 
> 
> For that I used a [list prepend] [list append] to obtain a list of my
> two-digits numbers.
> Putting a [print] after [list append] allows me to see the inline
> list:
> print: 48 49 48 52 52 53 69 56 66 56
> 
> 
> And that leads me to a more general question: could I compare a list
> to another list and obtain a BANG as they match?. At first I was
> thinking of using [select], but I don't know if it can manage lists
> and how.
> 
> 
> 
> 
> 
> 
> 
> 
> 
> Il giorno 10/dic/09, alle ore 19:36, <martin.peach at sympatico.ca>
> <martin.peach at sympatico.ca> ha scritto:
> 
> > lineacurva wrote:
> > 
> > > Hi guys,
> > > 
> > > I'm working on my first RFID project, involving Arduino and Pure 
> > > Data. I use Innovation Id-20 reader and Arduino 2009. I'm stuck in
> > a 
> > > problem with "comport".
> > > 
> > > As I put a transponder near the reader, in Arduino serial monitor
> > I 
> > > can see a number like: 495211712056
> > > 
> > > But in the little patch I attach here, comport reads: 53
> > > 
> > > This is a problem since more than one transponder give me a "53" 
> > > feedback (but a different 12 digits number in Arduino monitor).
> > > 
> > 
> > 53 is the ASCII value of the character '5'. Probably if you add a
> > [print] to the [comport] output you would get a list of 12 ASCII
> > values for each sample.
> > 
> > In Pd you need to accumulate the list of incoming ASCII codes,
> > subtract 48 (ASCII '0') from each, and route them accordingly. A
> > 12-digit number won't display correctly as a float. Probably it's
> > easier in Arduino to make your numbers ints on [0..255] and send
> > them as BYTE. Then you get one number per sample and don't need to
> > handle lists.
> > 
> > Martin
> > 
> 
> 
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