Re: [M100] Android tablet + m100

[John R. Hogerhuis]

On Friday, February 12, 2016, Kurt McCullum  wrote:

> John,
>
> The drivers are built into the library I am using. It supports an Android
> OS as old as 3.1.
>
> Kurt
>
>
Interesting. What library are you using?

-- John.

Re: [M100] Android tablet + m100

[Kurt McCullum]

John,
It's the felHR85 UsbSerial library. That the base library that is then wrapped 
into a B4A library. It supports several different USB devices. Some with more 
support than others.
Link
Kurt
 

On Friday, February 12, 2016 8:54 AM, John R. Hogerhuis  
wrote:
 

 

On Friday, February 12, 2016, Kurt McCullum  wrote:

John,
The drivers are built into the library I am using. It supports an Android OS as 
old as 3.1.
Kurt
 


Interesting. What library are you using?
-- John.  

  

Re: [M100] Android tablet + m100

[Kurt McCullum]

Yeah that was what kept me away from attempting mComm on Android. It was 
finding this library that gave me the nudge. There are some features I hope 
will be added such as DSR sensing which will allow me to do more through 
TELCOM/HTERM but it's been a stable library so far and I don't have to fuss 
with individual drivers. FTDI still seems to have the best support though.
 

On Friday, February 12, 2016 9:11 AM, John R. Hogerhuis  
wrote:
 

 Cool stuff thanks. When I first started looking at Android I saw serial 
support so fragmented that I skipped straight to BT. But this library at least 
makes good serial port across devices and kernels possible.  
-- John. 


  

Re: [M100] Android tablet + m100

[John R. Hogerhuis]

Cool stuff thanks. When I first started looking at Android I saw serial
support so fragmented that I skipped straight to BT. But this library at
least makes good serial port across devices and kernels possible.

-- John.

Re: [M100] Android tablet + m100

[Kurt McCullum]

Willard,
Thanks for the update. I have not tried it with a Galaxy tab. I have used a 
Nexus 7, Motorola Moto-X, Droid Mini and have received reports about a Nexus 5. 
I'll look into the Galaxy. Maybe there is a setting for powering the OTG 
devices. I know with my phone that the FTDI chip draws power and maybe the 
Galaxy is not allowing that in order to conserve as much power as possible.
What version of the Android OS is installed on your tablet?

Kurt
 

On Thursday, February 11, 2016 11:26 PM, Willard Goosey  
wrote:
 

 So I'm getting the gear together to try out Android mcomm and got the FTDI 
rs232 adapter today. Gave it a try
And my tablet (Samsung Galaxy Tab 2 7) flatly refused to power the adapter. 
Hooked it up through a powered hub and it works.
I'm still gonna give mcomm a try but the requirement of wall power for the hub 
will make it, well, a lot less "on the go". :-(
Now I want to be clear here, this is NOT a complaint about mcomm or any other 
m100 goodness, just a warning that android devices can be awfully fussy about 
powering USB gizmos and people planning on using mcomm should just be aware.
Willard



Sent from Samsung tablet

   

Re: [M100] Android tablet + m100

[Kurt McCullum]

Willard,
Did a little digging. Both the Galaxy Tab 2 7.0 I705, and Galaxy Tab 2 7.0 
P3100 support OTG devices. The 7" tab 3 doesn't. From your description it 
sounds like yours does support the OTG serial device but isn't passing power to 
it which is strange. If you have a multi-meter handy, check the outer two 
connection pins where the FTDI would plug in. Is it 5V? If not, it may be the 
cable. Another test would be to plug a USB flash drive into that cable and see 
if it powers up. If not then it's definitely a cable issue.

Kurt

 

On Friday, February 12, 2016 7:40 AM, Kurt McCullum  
wrote:
 

 Willard,
Thanks for the update. I have not tried it with a Galaxy tab. I have used a 
Nexus 7, Motorola Moto-X, Droid Mini and have received reports about a Nexus 5. 
I'll look into the Galaxy. Maybe there is a setting for powering the OTG 
devices. I know with my phone that the FTDI chip draws power and maybe the 
Galaxy is not allowing that in order to conserve as much power as possible.
What version of the Android OS is installed on your tablet?

Kurt
 

On Thursday, February 11, 2016 11:26 PM, Willard Goosey  
wrote:
 

 So I'm getting the gear together to try out Android mcomm and got the FTDI 
rs232 adapter today. Gave it a try
And my tablet (Samsung Galaxy Tab 2 7) flatly refused to power the adapter. 
Hooked it up through a powered hub and it works.
I'm still gonna give mcomm a try but the requirement of wall power for the hub 
will make it, well, a lot less "on the go". :-(
Now I want to be clear here, this is NOT a complaint about mcomm or any other 
m100 goodness, just a warning that android devices can be awfully fussy about 
powering USB gizmos and people planning on using mcomm should just be aware.
Willard



Sent from Samsung tablet

   

   

Re: [M100] Android tablet + m100

[John R. Hogerhuis]

It's possible that some android os's may not ship with the USB serial
driver (compiled as a module and not included).

Something to verify if you can get one of these connected to adb.

-- John.

Re: [M100] Android tablet + m100

[Kurt McCullum]

John,
The drivers are built into the library I am using. It supports an Android OS as 
old as 3.1.
Kurt
 

On Friday, February 12, 2016 8:22 AM, John R. Hogerhuis  
wrote:
 

 It's possible that some android os's may not ship with the USB serial driver 
(compiled as a module and not included). 
Something to verify if you can get one of these connected to adb.
-- John. 

  

Re: [M100] Android tablet + m100

[Willard Goosey]

Yes I have OTG support, the Tab is just picky about how much power it's willing 
to output. It'll power a sdcard reader or a flash drive, for instance, but 
won't power a Dell USB keyboard or an Arduino Uno.
 
Sorry should have said, Samsung OEM Android 4.2.2 is the OS.

Found FTDI's official android terminal program app and talked to TELCOM with 
it, so once powered everything works fine.

Also, a helpful app was "usb device list" it's tiny and just lists all the 
connected usb devices. Because Android thinks it's MacOS and won't tell you 
what its actually doing. 

Willard
Sent from Samsung tablet