Re: Arduino to octave

[Juan Pablo Carbajal]

On Sun, Oct 9, 2016 at 5:57 PM,  <address@hidden> wrote:
> Hi Gabriel and Andy,
>
>> Hi Gabriel,
>>
>> Am 09.10.2016 um 12:05 schrieb Gabriel Soo:
>>> Isit possible to read data from octave? Since the octave(pc software)
>>> can only analysis digital data, the analog signal that fed into
>>> arduino(ADC) is convert into digital form, now the octave(with
>>> instrument-control package installed) is able to read the serial com
>>> that is connected to the arduino.
>>
>> Yes, this is possible using the "instrument-control" package
>>
>>
>>> Here's the problem, what command
>>> should we use in octave to gain those data? We going to use those data,
>>> to plot a graph.
>>
>> This depends how you send the data from the arduino? Are you using
>> strings (you convert the integers or double to string before sending) or
>> are you using some binary communication?
>>
>> Basically you'll create a serial object, read data into a buffer using
>> srl_read and then convert them. For binary data there is "typecast".
>>
>> -- Andy
>
> I've recently been working on data acquisition from an arduino by the
> serial channel and the Instrument Control  package.
> It was not so easy: it seemed that some data were missed from time to
> time, but I've never understood why. I now perform some error checking and
> sometimes I lower the baud rate. I finally have something that works quite
> good (it is a kind of obstacle-checking sonar for a future small robot).
> I can send you some example code, if you wish.
> Best
> Giorgio
>
>
>
>
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This is rather old but it still might be helpful to you
http://shop.dwengo.org/node/486