Well, there are really tiny converters like these, but you have to steal the Vcc from one of the signals; note that the 3232 etc. have two of each RX & TX, so you could hack a pair of control lines e.g RTS/CTS or DTR/DSR:
http://www.ebay.ca/itm/5Pcs-Mini-RS232-To-TTL-MAX3232-Converter-Adaptor-Module-Serial-Port-Board-/282131187736?hash=item41b0544818:g:GBEAAOSwHoFXqZit ----- Original Message ----- From: Brian White To: Model 100 Discussion Sent: Thursday, September 08, 2016 5:07 PM Subject: Re: [M100] Getting started with mComm Ooh I wonder if that level shifter would work as a new replacement for a TPDD cable? Or really the same module without the db9, so you could stick it in a db25 shell instead. Instead of making the cable the somewhat hacky way the original cables were made. -- bkw On Thu, Sep 8, 2016 at 1:09 PM, Ron Lauzon <[email protected]> wrote: I purchased a couple of these: https://www.sparkfun.com/products/449 It's an RS-232 to TTL converter. I've successfully used this to hook my T102 to my Raspberry PI. On Thu, Sep 8, 2016 at 1:02 PM, 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=0&order=&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 > > > > -- Ron Lauzon - rlauzon at acm dot org Homepage: http://webpages.charter.net/rlauzon/ Weblog: http://ronsapartment.blogspot.com/ DNRC: Lord of All Things That Are Fattening "To be sure, conservative radio talk show hosts have a built-in audience unavailable to liberals: People driving cars to some sort of job." - Ann Coulter Microsoft Free since July 06, 2001 Running Ubuntu 16.04
