[PD] Pduino&Ping ultrasonic sensor&arduino

Hans-Christoph Steiner hans at eds.org
Tue Dec 25 03:17:27 CET 2007

You can do up to 6 or even 8 analog inputs, so you can handle that  
many solar panels with Pduino/Firmata.  For the ping sensors, the EZ1  
and friends would be the best bet, then you can use 6/8 of those,  
since they are just analog signals.

As for the PING sensors, you can know use the alpha Firmata library  
in Arduino, and write an arduino firmware which handles the PING  
sensors, and communicates using the Firmata protocol.


On Dec 24, 2007, at 4:47 AM, Marko Timlin wrote:

> Hi Marius,
> you are absolutely right! After writing code for the arduino I can  
> use the Ping sensor without any problems within PD (using the  
> PD_inputs_to_PD patch).
> But that is not my problem. My problem is that if I work like that,  
> I have to change the arduino code all the time I change my sensor  
> setup. Like for instance: First I write arduino code for 3 Ping  
> sensors and 3 solar panles...but then I want to use 4 Ping sensors  
> with let's say 3 LEds.
> It would be great if I could do all that using only the arduino  
> patch in PD, without writing new code for arduino all the time. Of  
> course after uploading the Pd_firmware onto the arduino-board.
> Any idea how? And at the moment I would like to work with 8 Ping  
> sensors :-) and 5 solar panels at the same time.
> Best,
> Marko
> hmm, I think arduino can handle the ping range finder. but you need to
> write your specific code.
> use a code that you find online (the routine is something like:  
> turn pin
> to outlet, set pin high, wait some milliseconds, set pin low, turn pin
> to inlet, measure the time until you receive the echo...)
> and then send the value to pd via serial port (115200).
> then measure next value.
> I think, you should be able to send at least 20 values per second, but
> that is a guess.
> do you need more info for the arduino code? how many sensors do you  
> have?
> marius.
> it is
> Marko Timlin wrote:
>> Moi,
>> does anybody know, if it is possible to control the Ping 
>> (ultrasonic range
> finder)sensor using only Pduino (first uploading Pd-firmware to the  
> arduino,
> and then using the "arduino" pure data patch?). It doesn't work for  
> me at the
> moment.
>> If I write my own ping-sensor-patch for arduino and then use the
> PD_inputs_to_PD patch it works fine.
>> But I'd like to use several different sensors and it would  
>> therefore be much
> easier to just control all of them with Pduino and not writing new  
> code for
> arduino all the time. Well, guess this was the original idea of  
> Pduino anyways
> :-)
>> MArko
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