[PD] Re: BlueTooth CUI : using [comport] or [hid]

[Hans-Christoph Steiner]

Hey Dan,

How is the [&] object ineffecient?  I think its just a straight pass- 
thru to the C & operator, should it should use little CPU.

It would be easy enough to write something like [bit] for Pd based on  
[&] which would make the patching easier.

.hc

On Jun 16, 2006, at 9:03 PM, Dan Overholt wrote:

> all right, there's an updated version of the PD patch for the  
> Bluetooth
> CUI on the website now, including the digital inputs:
> http://www.create.ucsb.edu/~dano/CUI/CUIBTPDtest.pd
>
> using the AND operator in PD seems to be _very_ inneffecient  
> though, if
> anyone has a better idea, let me know!
>
> -Dan
>
> On Fri, 16 Jun 2006, Hans-Christoph Steiner wrote:
>
>>
>> To get bits, use the standard bitwise operators, just like C or many
>> other languages.  Pd has the whole suite: & | >> <<
>>
>> To get the value of a bit, AND it by that bit's value, i.e. the 4th
>> bit would be [& 16]
>>
>> .hc
>>
>> On Jun 16, 2006, at 2:00 PM, Dan Overholt wrote:
>>
>>> Hi All,
>>>
>>> I've put up an example of using the Bluetooth CUI with PD here:
>>> http://www.create.ucsb.edu/~dano/CUI/CUIBTPDtest.pd
>>>
>>> The only question is how to get at the individual bits within the
>>> last 2
>>> received bytes to decode the digital inputs from the CUI. In Max/ 
>>> MSP,
>>> there is an 3rd party external called [bit] that does this... any
>>> suggestions?
>>>
>>> All the best,
>>> -Dan
>>>
>>> -- 
>>> Dan Overholt -- http://www.create.ucsb.edu/~dano
>>> Center for Research in Electronic Art Technology, UCSB
>>>
>>>
>>> On Fri, 16 Jun 2006, Alexandre Quessy wrote:
>>>
>>>> Hello Pure Data friends,
>>>>
>>>>
>>>> We are currently trying to make the Bluetooth CUI work with PD.
>>>>
>>>>
>>>> The Bluetooth Create Usb Interface is the wireless version of  
>>>> the USB
>>>> CUI, a 13 analog/10 bits and 12 digital I/O interface for sensors.
>>>> The
>>>> BTCUI is perfect for embbeded applications like dance,
>>>> performance, music etc. It's one of the cheapest and smallest
>>>> wireless
>>>> interface on the market, and it is Open Hardware !
>>>>
>>>> The USB CUI works all right with PD, with HID tools. We use the  
>>>> [hid]
>>>> external from PD-Extended 0.39.RC4 (on Mac).
>>>>
>>>> Unfortunately, we didn't succeeded to make the BluetoothCUI working
>>>> with PD. We have tried [comport] and [hid]. The BTCUI works  
>>>> perfectly
>>>> on Max/MSP (demo version), as announced by Dan Overholt, its  
>>>> creator.
>>>> His patch is downloadable at
>>>> http://www.create.ucsb.edu/~dano/CUI/BlueCUItestRev2.zip and  
>>>> uses the
>>>> [serial] object of Max/MSP.
>>>>
>>>> The protocol of the CUI is probably similar to the one used by
>>>> joysticks and such. It consists in a serie of integers with
>>>> delimiters, the several remaining integers beings the values  
>>>> that the
>>>> device sends to the computer. See the attached PD patches. Below  
>>>> are
>>>> out two PD patches. The first one uses [hid] and works with the USB
>>>> CUI, but not over BlueTooth. (Apple does serial port emulation) The
>>>> second uses [comport] and almost work. The CUI LED lights up, so it
>>>> means that it is sending data, but most often, dumping the data  
>>>> from
>>>> [comport]'s outlet give us nothing.
>>>>
>>>>
>>>> Would you have any idea of what is missing to imitate, and make  
>>>> even
>>>> better than the [serial] Max/MSP object ? Otherwise, would it be
>>>> easier on
>>>> Linux ?
>>>>
>>>>
>>>> JN and
>>>>
>>
>>
>> --------------------------------------------------------------------- 
>> ---
>>
>> Man has survived hitherto because he was too ignorant to know how to
>> realize his wishes.  Now that he can realize them, he must either
>> change them, or perish.    -William Carlos Williams
>>
>>
>
> -- 
> Dan Overholt -- http://www.create.ucsb.edu/~dano
> Center for Research in Electronic Art Technology, UCSB


------------------------------------------------------------------------

If you are not part of the solution, you are part of the  
problem.        - Eldridge Cleaver