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

Emin Durak e10durak at gmail.com
Tue Apr 24 16:29:14 CEST 2012

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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