Yes.. I already posted an issue

For ecample, it does not explain hot to get the Device Properties.

I'm glad you got it working. And what about the Wolfram guide is too confusing (and I'm assuming by the Wolfram guide you are referring to the documentation page I linked to)?

Ian

I think there might have been a problem with the sketch I uploaded. I have modified the sketch, can you try reuploading the sketch?

Additionally, if you have 10.1, you can just use the builtin Arduino functionality (which evolved from this), documented at http://reference.wolfram.com/language/ref/device/Arduino.html

And you know that your serial port is "COM3"?

Hi again Jose,

So what exactly is not working for you? Have you uploaded the sketch to your Arduino with the Arduino software?

Ian

This is a great subject. But a bit advance for new users. May you explain what is the "Arduino firmware" and ho w it differs from a "sketch"?

Also , explain what is a Wolfram package and how it is different from running a standard notebook?

Thank you!

Hello Ian, unfortunately my ideas are way beyond the skill I reacht up to now. I will try to hook up an arduino micro or nano first, 32u4 / 328P. Then the due...

The temptation is that DUE is not so limited in pin count as are the small arduinos. And the limitation of 10bit DAC, beiing noisy as it is, diminishes together with 4kHz usable sample rate the use as aquisition device. Due would probably stand out there, so I will try.

For you I found a link that mentiones M3 simulation model as open source, so you could swallow it in Mathematica, and it has morphing technology...

Yours

Andi

Hi Andi,

You can most certainly use this software with an Arduino Due, but as you said you will need to install the package inside the Arduino software to support the SAM chip on the Due. And you would interact with the Arduino Due via the serial port you mentioned, going through the 32u4 to the computer. You might be able to figure out some way to use the hardware serial ports on the chip itself with something like an FTDI chip on it, but I'm not entirely sure why you'd want to when there's already a dedicated UART/USB chip on the board itself.

Lastly, I am not familiar with the OpenOCD project enough to say whether or not you can inject features to the code "live", but a cursory glance at the project tells me probably not. It is certainly a doable task to rewrite some section of the flash memory to add code, but the problem is that it would get pretty complicated, and to my knowledge almost all of said code would need to be written in assembly, as the code you would load into the flash would have to be from a .hex file. You might look at the optiboot loader code on github, as the bootloader for Arduinos does basically what you are describing, "live" loading of code on the device. Note that the specific project I linked to doesn't support the Due, so you would have to write your own code for the SAM chip. While live loading of code onto a running arduino without resetting is complicated, I can say that the Arduino driver that is currently in Mathematica 10.1.0 (which only supports the Uno at the moment) does support changing a sketch and re-uploading the new sketch completely from within Mathematica. Take a look at the DeviceConfigure section of the documentation. It's not exactly what you were describing, but it is a lot more convenient than reopening the Arduino software every time you need to change the sketch. We do plan on expanding the builtin functionality to other Arduino boards in the future, but for now it is just the Uno.

Ian

I reattached the file as an attachment to the post. The file had a limited amount of time it was hosted on the server, and I had thought that the official driver would be in the software by the time it had expired, but unfortunately not. It will be a little bit longer before the official driver (which was derived from this work) will be integrated into the product.

Ian

Hi Ian,

I am not sure where you are currently sitting but Arnoud has such a counter. Anyway, your post is brilliant and I will try to put your code to use in some of my projects as well.

In one of your earlier replies you said that you could go up to 1kHz. Did you actually get there? If you manage a bidirectional communication at that speed that would be quite good.

Cheers, Marco

PS: By the way

arduinoObject = DeviceOpen["Serial", {Quiet[FileNames["tty.usb*", {"/dev"}, Infinity]][[1]], "BaudRate" -> 9600}]

seems to work fine on a Mac and you don't have to actually look anything up in the /dev directory. I found that useful.

Very nice! I'd like to be able to create a GUI with mathematica to control our microscope lasers via the Arduino. This seems like a very good start. Just tested and it works on my system (Windows). However, any thoughts on how fast this can pulse the LED? I tried setting the time delay to 1 ms and it seemed a bit off. How fast can we pulse?

Thanks for the suggestion, I attached a notebook, which is just basically the original post in notebook form.

Ian, when using your wonderful Arduino Driver with an Arduino Micro I find that serialBufferRead, at odd times, does not contain the full data array upon which or also unrelated to this occurrence the notebook looses connection to arduinoObject. Is it advisable to include a second If statement in ArduinoRead[pin_] which checks for the Length of serialBufferRead ? I am using OS X 10.9.5 . I include a notebook with results. Thank you in advance, Hanspeter

Attachments:

Thank you Ian for looking into my problem. With a pause the error rate is significantly lower (almost perfect). I find that the error which I reported appears ALWAYS, when the Arduino Serial Monitor pop-up window is open at the time the Mathematica program is running, but this is not surprising.

I have a second question though: Why do commands like
DeviceConfigure[arduinoObject,<|"A5"->"analogInput"|>] or DeviceConfigure[arduinoObject,<|6->"digitalInput"|>] trigger a continuously repeated transmission of the serial buffer from the Arduino Micro, rather than enable a single transmission once a DeviceRead statement is sent ?

Thanking in advance,

Hanspeter

Ian, this is an excellent post - thanks so much for sharing! Wolfram Community allows file uploads. I think you should attach whatever complimentary to your project files you have - to the actual post. Just click edit on your post and than attach the files. Again, thank you for great material and detailed project description.