Re: iOS usb/serial access and use

[Monte Goulding via use-livecode]

> On 17 Apr 2018, at 3:27 am, Douglas Ruisaard via use-livecode 
>  wrote:
> 
> Hmmm... I found an interesting and possibly an exploitable approach... 
> possibly in combination with Monte's suggestion that "mergAccessory" may be a 
> component.  In the link:
> https://apple.stackexchange.com/questions/13605/how-to-get-started-with-interfacing-usb-devices-to-ipad
> 
> ... there is discussion about using a MIDI device as an attachment to an iOS 
> device.  I could easily get the arduino to appear to be a MIDI device, since 
> that merely involves using a specific "protocol" for moving data AND there 
> are many arduino project which use the arduino for MIDI processing, input and 
> output.
> 
> Question is.. how would I go about "marrying" the two... a MIDI "device" and 
> Monte's "mergAccessory" external?

Unfortunately you need an official made for iOS device to use mergAccessory. 
It’s a special program that hardware manufacturers have to sign up to. Apple 
being Apple keep control of the ecosystem of hardware. Best bet is to look for 
a made for iphone thing that is designed as an interface to arduino or 
something.

Cheers

Monte
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Re: iOS usb/serial access and use

[Monte Goulding via use-livecode]

> On 17 Apr 2018, at 12:13 am, Douglas Ruisaard via use-livecode 
>  wrote:
> It does somewhat bother me, though, that use of the USB to an iOS device *is* 
> available "within" LC but not exposed as a function... I though the LC IDE 
> was written in LC ... someone had that in a posting I read recently ... so, 
> in principle, it "could" be made available to developers.  It's not as if LC 
> doesn't allow us to access and use serial/USB devices in other OS's!  I'm 
> sure in this age of wireless-ness, hardwire connectivity is a conceptual 
> dinosaur but, for us die-hards, it remains a viable alternative.

I think you are talking about mergDeploy here and that is a very specific use 
case of installing an app onto a device rather than general USB access. Indeed 
mergDeply uses private APIs to do what it does but that’s OK because we aren’t 
trying to release LiveCode via the App Store.

Cheers

Monte
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RE: iOS usb/serial access and use

[Douglas Ruisaard via use-livecode]

Hmmm... I found an interesting and possibly an exploitable approach... possibly 
in combination with Monte's suggestion that "mergAccessory" may be a component. 
 In the link:
https://apple.stackexchange.com/questions/13605/how-to-get-started-with-interfacing-usb-devices-to-ipad

 ... there is discussion about using a MIDI device as an attachment to an iOS 
device.  I could easily get the arduino to appear to be a MIDI device, since 
that merely involves using a specific "protocol" for moving data AND there are 
many arduino project which use the arduino for MIDI processing, input and 
output.

Question is.. how would I go about "marrying" the two... a MIDI "device" and 
Monte's "mergAccessory" external?

Douglas Ruisaard
Trilogy Software
(250) 573-3935


-Original Message-
From: Douglas Ruisaard [mailto:do...@telus.net] 
Sent: Monday, April 16, 2018 7:14 AM
To: 'use-livecode@lists.runrev.com'
Subject: Re: iOS usb/serial access and use

Thanks for the reply, Monte.  Well, that's disappointing but not surprising.  
Kinda like "Dad" not letting you drive his car ... although I'm likely older 
than "Dad" and willing to take the "responsibility".  I guess it's on to XCode, 
then.  It's good to have a definitive answer to this question.  Fosters 
confidence in web searches ... even negative result ones.

It does somewhat bother me, though, that use of the USB to an iOS device *is* 
available "within" LC but not exposed as a function... I though the LC IDE was 
written in LC ... someone had that in a posting I read recently ... so, in 
principle, it "could" be made available to developers.  It's not as if LC 
doesn't allow us to access and use serial/USB devices in other OS's!  I'm sure 
in this age of wireless-ness, hardwire connectivity is a conceptual dinosaur 
but, for us die-hards, it remains a viable alternative.

Douglas Ruisaard
Trilogy Software
(250) 573-3935


Hi Douglas

Unless something has changed recently iOS does not provide a public way to use 
the USB cable. It could be that there is a third party accessory that you can 
plug in to do this though. If so you could use mergAccessory to read and write 
to it.

Cheers

Monte

> On 16 Apr 2018, at 1:42 am, Douglas Ruisaard via use-livecode 
> <use-livecode@lists.runrev.com> wrote:
> 
> Now, for the next "component", I'd like to be able to communicate to and from 
> the arduino to and from an iOS device (iPhone or iPad) via a "hardwire" 
> connection... 




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Re: iOS usb/serial access and use

[Douglas Ruisaard via use-livecode]

Thanks for the reply, Monte.  Well, that's disappointing but not surprising.  
Kinda like "Dad" not letting you drive his car ... although I'm likely older 
than "Dad" and willing to take the "responsibility".  I guess it's on to XCode, 
then.  It's good to have a definitive answer to this question.  Fosters 
confidence in web searches ... even negative result ones.

It does somewhat bother me, though, that use of the USB to an iOS device *is* 
available "within" LC but not exposed as a function... I though the LC IDE was 
written in LC ... someone had that in a posting I read recently ... so, in 
principle, it "could" be made available to developers.  It's not as if LC 
doesn't allow us to access and use serial/USB devices in other OS's!  I'm sure 
in this age of wireless-ness, hardwire connectivity is a conceptual dinosaur 
but, for us die-hards, it remains a viable alternative.

Douglas Ruisaard
Trilogy Software
(250) 573-3935


Hi Douglas

Unless something has changed recently iOS does not provide a public way to use 
the USB cable. It could be that there is a third party accessory that you can 
plug in to do this though. If so you could use mergAccessory to read and write 
to it.

Cheers

Monte

> On 16 Apr 2018, at 1:42 am, Douglas Ruisaard via use-livecode 
>  wrote:
> 
> Now, for the next "component", I'd like to be able to communicate to and from 
> the arduino to and from an iOS device (iPhone or iPad) via a "hardwire" 
> connection... 




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Re: iOS usb/serial access and use

[Monte Goulding via use-livecode]

Hi Douglas

Unless something has changed recently iOS does not provide a public way to use 
the USB cable. It could be that there is a third party accessory that you can 
plug in to do this though. If so you could use mergAccessory to read and write 
to it.

Cheers

Monte

> On 16 Apr 2018, at 1:42 am, Douglas Ruisaard via use-livecode 
>  wrote:
> 
> Now, for the next "component", I'd like to be able to communicate to and from 
> the arduino to and from an iOS device (iPhone or iPad) via a "hardwire" 
> connection... 


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iOS usb/serial access and use

[Douglas Ruisaard via use-livecode]

I've managed, with a lot of help from the community, to get the mergBLE 
commands and messages working very well between my LC iOS app and an arduino.  
Now, for the next "component", I'd like to be able to communicate to and from 
the arduino to and from an iOS device (iPhone or iPad) via a "hardwire" 
connection... just in case BLE is disconnecting or generally unreliable in 
certain environments.

 

I done a fair bit of web searching but cannot find a way to reference the iOS 
USB via LC.  There's info on Linux, Windows and MacOS, but none (that I can 
find) on iOS.  Obviously LC *can* employ the USB on an iOS device it does 
it in its Development / "Test" and "Test Target" functionality to send an app 
to an attached iOS device.

 

I've seen a portion of Apple's USB development doc's and spec's ... since I'm 
not an XCode user, they don't make any sense to me and don't (seem) to indicate 
any "device name".  There are various mentions of "sandboxing" the app and then 
enabling various "entitlements" ... one of which is " Allow USB Access: 
com.apple.security.device.usb".  I'm totally clueless on this sort of reference.

 

(taken from LC forum: Re: Help extracting information from USB port data ... 
Post  by MaxV > Tue Jan 27, 2015 3:52 pm)

and translated from:  http://livecodeitalia.blogspot.it/2014/ ... porta.html

 

Windows:

*open* driver "COM2:" for binary update

 

while on Linux ports are tty (or something similar) into the folder / dev , 
then:

*open* driver "/ dev / tty2" for binary update

 

Mac is a bit more complicated, because the name and position changes with each 
version, however, for the rest it is like on Linux:

# Try one of these: /dev/cu.usbmodem2, /dev.tty.usbmodem2, /dev.cu.usbserial2,

*open* driver "/dev/cu.usbmodem2" for binary update

 

 "missing" iOS ...

 

So ... anyone who can give me a push in the right direction would have my most 
sincere appreciation.  I haven't actually tried the Mac examples but since I'm 
fairly certain of the very significant differences between MacOS and iOS, I'm 
skeptical of even trying I will and report back here... but I'm not likely 
to have any success.

 

Cheers!

Doug

 

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