[PD] Retrieving data directly into PD from HC-SR04 sensors connected to Arduino

Tue Apr 24 17:10:12 CEST 2012

I think I also gotta change the ratebit at PD to the same number of
serial.print code at Arduino code! Right? How?

And the data gathered should appear here right:?

[image: Inline image 1]

On Tue, Apr 24, 2012 at 5:00 PM, Emin Durak <e10durak at gmail.com> wrote:

> Nop! Another sensor - HC-SR04 which uses 2 pins: *Echo and Trigger - *input
> and output. I use this code at Arduino to get it working. For each pin, I
> rewrite the same code only changing the (10, 11) at the third line. It
> gives me inch as distance:
>
>   #include <Ultrasonic.h>
>     {
>   Ultrasonic ultrasonic(10, 11 );
>   float inMsec;
>   long microsec = ultrasonic.timing();
>   inMsec = ultrasonic.convert(microsec, Ultrasonic::IN);
>   Serial.println(inMsec);
>   delay(400);
>     }
>
> What do you think? Maybe we just try with one sensor and try to change the
> frequency of a song played at PD with it??
>
>
>
>
>
> On Tue, Apr 24, 2012 at 4:49 PM, Pierre Massat <pimassat at gmail.com> wrote:
>
>> Are you using this code :
>> http://www.arduino.cc/en/Tutorial/UltrasoundSensor
>> ?
>>
>> Apparently Ultrasound sensors need to use a single pin as both input and
>> output (to send a pulse and to receive the echo). Unfortunately i don't
>> think Firmata can do that (it should be possible but I suspect there would
>> be some latency when switching from input to ouput back and forth -
>> somebody confirm this??).
>>
>> If you only need these 4 sensors, you can adapt the example code for
>> ultrasound sensors to output the data, and read it using [comport] in Pd.
>> This object is at the core of Pduino.
>>
>> (You shouldn't see anything in Pd console when using Pduino, except
>> information about the current connection and the device.)
>>
>>
>> 2012/4/24 Emin Durak <e10durak at gmail.com>
>>
>>> Hej Pierre, thanks again.
>>>
>>> It works perfectly at Arduino Serial Monitor; all 4 sensors that are
>>> connected to.
>>>
>>> Should I only upload the firmata library and not write any code besides
>>> for the sensors you mean? I have uploaded the whole StandardFirmata.ino
>>> example file. But you mean only *firmata library* +* sensors library*(there is one) +
>>> *sensors code* will be sufficient?
>>>
>>> I would say let's simplify it. Let's have 4 different channels of music
>>> (sound files) w're playing. We wanna change the frequency of them *by
>>> the data gathered from 4 sensors. *Will need to put +5000 to the number
>>> we get for us to actually hear the frequency, but let's say. Or I'm fine to
>>> just "see" the analog data on PD as well. How would we do that? I send you
>>> the screenshots of how I adjusted PD... Ah, should I be seeing the numbers
>>> from sensors at the main PD window?? I get here this:
>>>
>>>  [image: Inline image 1]
>>>
>>>
>>>
>>>
>>> On Tue, Apr 24, 2012 at 4:12 PM, Pierre Massat <pimassat at gmail.com>wrote:
>>>
>>>> First you need to make sure the electronic part is working fine (using
>>>> Arduino IDE's serial monitor).
>>>> Then upload Firmata. If your sensors need no special library you should
>>>> upload Firmata only.
>>>> Then open arduino-test.pd with your board plugged in. The first thing
>>>> you want to check in Pd is whether the right port is open. Choose a port,
>>>> and click on the "Version" or "Firmware" messages to see if Pd recognizes
>>>> the Arduino. If it does you should see a "Firmata something" below [pd
>>>> device info]. If nothing appears, change the port and try again.
>>>> Once you've made sure that the right port is open, use the pink matrix
>>>> in the upper right corner to open the pins your sensors are connected to.
>>>> The digital pins are from 2 to 13 if i'm not mistaken, the rest is analog.
>>>> Check "input" to open a digital pin for input, and "analog" to open an
>>>> analog pin for input.
>>>>
>>>> Pierre
>>>>
>>>>
>>>> 2012/4/24 Emin Durak <e10durak at gmail.com>
>>>>
>>>>> Hi Pierre,
>>>>>
>>>>> Thank you very much for your tips. Yes I have been trying but how
>>>>> would I configure the analog pins as analog inputs at Pduino? I'm trying
>>>>> with ultrasonic sensors to read data (which is not on/off). And have
>>>>> uploaded the StandardFirmata code besides my sensors reading code to
>>>>> Arduino. And testing on the arduino-test.pd sketch on PD. Ain't working :(
>>>>>
>>>>> Cheers...
>>>>>
>>>>>
>>>>>
>>>>> On Tue, Apr 24, 2012 at 9:22 AM, Pierre Massat <pimassat at gmail.com>wrote:
>>>>>
>>>>>> Do you use a special library in Arduino to get data from your
>>>>>> sensors? If not Firmata + Pduino should work just fine. Are you sure you
>>>>>> opened the right port in Pduino? Did you configure the analog pins your
>>>>>> sensors are connected to as analog inputs in Pduino?
>>>>>> If you're not familiar at all with Pduino I suggest you try it with
>>>>>> more simple stuff (like push buttons and pots).
>>>>>>
>>>>>> Cheers,
>>>>>>
>>>>>> Pierre.
>>>>>>
>>>>>> 2012/4/24 Emin Durak <e10durak at gmail.com>
>>>>>>
>>>>>>> Hello!
>>>>>>>
>>>>>>> I'm sorry this email will be probably too amateur but I just
>>>>>>> couldn't figure out for days how to retrieve data into PD from the sensors
>>>>>>> I connect to Arduino (HC-SR04 ultrasonic sensors). I have no problem
>>>>>>> viewing them on Serial Monitor of Arduino software by some libraries I
>>>>>>> found online, though processing them at PD seems a bit tricky. I have tried
>>>>>>> SimpleMessageSystem, Firmata and Pduino but couldn't really have managed in
>>>>>>> neither of them.
>>>>>>>
>>>>>>> All I want to do is changing different parameters (frequency,
>>>>>>> loop-time, volume etc.) of playing sounds from an existing library (just a
>>>>>>> folder with songs/sounds), thus play them *accordingly *to the data
>>>>>>> I gather from sensors (10 of them). Plus making relevant changes throughout
>>>>>>> *time*. Idea is that people dancing on a dance floor can affect the
>>>>>>> sequence of electronic music played, in a collective and sensual way. Me
>>>>>>> being only a starter at PD, also, doesn't help much either; but gotta do it
>>>>>>> for my graduation. Technically I can't really "create" music like that in
>>>>>>> this short time and it's not my interest; BUT I feel like *modifying
>>>>>>> * existing music shouldn't be a big deal. No?
>>>>>>>
>>>>>>> Any suggestions? Highly appreciated! Thank you all!!
>>>>>>> Emin
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Pd-list at iem.at mailing list
>>>>>>> UNSUBSCRIBE and account-management ->
>>>>>>> http://lists.puredata.info/listinfo/pd-list
>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
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