Here is the pinout that works with mComm, both the PC and Android version.
PC------Model-TDB9-----DB25
===============
2------>2
3<------3
4<------6
5--GND--7
6<------20
7------>5
8<------4
When buying off the shelf adapters, I have noticed that sometimes pins 1 and 6 
on the DB9 side are tied to pin 20 on the DB20 side. This works for the NEC and 
102 but not the 200 (and I suspect 100). Pin 1 has to be removed on such 
adapters.
Kurt 

    On Thursday, September 8, 2016 10:02 AM, Jonathan Yuen 
<[email protected]> wrote:
 

 Hello,

I have a general idea how to make a null modem cable but I was wondering if 
anyone has the actual pinouts that work.  Or are they specific to the actual 
adapter?  The last null modem I made didn't have hardware handshaking.  The pi 
didn't have handware handshaking so it was only 3 wires a level shifter.  Now I 
want to run to a RS-232 to USB connector and I figured I could put in hardware 
handshaking.  I thought if I made it DB25 to DB9 on the USB-RS232 thing I 
wouldn't have so many pieces lying around.  Thought I'd try it both on the pi 
and on a phone/other android device.

Poked around a bit on the web pages but didn't find anything specific....

Jonathan

[email protected]
________________________________________
Från: M100 [[email protected]] för James Zeun 
[[email protected]]
Skickat: den 8 september 2016 17:18
Till: Model 100 Discussion
Ämne: Re: [M100] Getting started with mComm

Kurt

I plan on putting one together with some photos, maybe we could join forces?

I'd like to make up a list of devices mComm works fine with. In theory, it 
should be fine with most Android phones, in theory ;-)

On 8 Sep 2016 4:11 p.m., "Kurt McCullum" 
<[email protected]<mailto:[email protected]>> wrote:
Earl,

I'll have to do a write up on the basics. But here it is in a nutshell.

Hardware needed
1) USB OTG cable
2) USB to serial adapter (FTDI is the best)
3) db9 to db25 full NULL cable (Or equivalent adapters)

Installing mComm for Android.
1) From the Android Settings app, go to Security. Set "Unknown sources" to true.
3) Download the APK file from the members file area 
Link<http://www.club100.org/memfiles/index.php?&direction=0ℴ=&directory=Kurt%20McCullum/mComm%20Android>
4) Click on the APK file and it will install.

Once it's installed, attach the OTG/USB/Serial cable to the phone/tablet and 
your Model-T. Click the "Start TPDD Service" on your phone/table and then go to 
your Model-T and use TS-DOS, TEENY or Floppy to transfer files back and forth. 
It supports the desklink directory extensions as well as the Sardine dictionary.

Hope that helps. I do need to make a detailed install guide.

Kurt


On Thursday, September 8, 2016 7:55 AM, Earl Evans 
<[email protected]<mailto:[email protected]>> wrote:


Hi folks,

I'm just jumping on the mComm train for the first time. I discovered that my 
Samsung Galaxy S3 supports USB OTG. I have an FTDI RS232 adapter. Is there a 
website that can tell me how to get started? I did some Googling but couldn't 
find a basic HOWTO.

Thanks!

- Earl





   

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