[GreenKeys] USB-teletype Report on Win 10

Mon May 9 15:43:53 EDT 2016

On May 9, 2016 12:35:23 PM PDT, COURYHOUSE at aol.com wrote:
>confused....  no giant resistor on the board.  what    board are  we  
>discussing? do you mean  r9?  that little  thing is  really  2  watt?  
> ok.... 
>remember I am  used to stuff  with color bands on them  have no  
>experience  
>with surface mount  stuff <<grin!>>

Yes, that's the one. Close contact with the board surface helps dissipate heat as well. no color bands on smd resistors though, but there are printed values on the larger ones.

> 
> 
>ok  on the baud  rate I mean the  usb  seemed to auto  baud, i one 
>machine 
> set  term program  for  9600  baud and it  worked
> 
>other  system i walked th board over to tem program set   for  2400
>baud 
>and it  worked
> 
>which means the usb auto senses the   terminal program baud   rate>?
> 
> 
> 

Yeah, something like that. You can use whatever baud rate setting you want. You use the config setting commands on the board to set the speed you want it to communicate on the loop.

Eric
> 
> 
>In a message dated 5/9/2016 11:33:56 A.M. US Mountain Standard Time,  
>epvgk at limpoc.com writes:
>
>On Mon,  May 09, 2016 at 04:18:02AM -0400, COURYHOUSE at aol.com wrote:
>> Eric  -  et al...
>>  
>> 1- WIN-10 - Seems  to talk   fine  to  board without  installing the 
>little  
>>  inf  file like I did on  the win 7  system  .... unless  it  just 
>found 
>it 
>> on  the memory  stick...   but I did not manualy install anything
>else...
>> It does seem  to  install to com 4 rather than com 6 as on the XP  
>machine 
>>  but  talks to the board with the flashing lights and also the setup 
> 
>menu.
>>  
>> 2 - I was surprised it seed  the board   autobaud'ed  with  the  
>hyper 
>> term... I  transferred HYPERTERM as an experiment   from my Windows
>XP 
>system  and 
>> seems to run on win 7 and  win 10 fine.
>>   
>> 3 -  explain the  resistor in series  with the loop  in  detail... 
>what 
># 
>> of Ohms and  wattage  20  mil what  size  for 60 mil loop... and what
>
>voltages 
>>   for each?
>>  
>> Still   want to hook  to the  tty!  but all this  pre-testing  is 
>fun too
>
>Ed,  
>
>Whether or not it needs the INF file appears random to me. Sometimes 
>it 
>does, sometimes
>it doesn't. 
>
>The baud rate is configured only via  the setup menu. Windows' idea of
>the 
>baud rate
>is completely ignored  because Windows has no concept of most TTY baud 
>rates. The info
>sheet  shipped with the board goes into this in more detail. 
>
>The resistor in  question is the big rectangular one on the top left
>part 
>of the
>board. It  is in series with the loop and samples the loop current as
>part 
>of a  divider,
>stealing just enough power to turn on the input of an optocoupler.  It
>is a 
>2-watt,
>150 ohm resistor. 
>
>You do not need to change it  unless you are doing something really 
>unusual. It will 
>work for both 20ma  and 60ma loops as is. The voltage across that
>resistor 
>will be, 
>by Ohm's  law, approximately the loop current multiplied by the
>resistance 
>(150  ohms).
>
>eric
>
>
>>  
>>  
>>  Ed#   _www.smecc.org_ (http://www.smecc.org)  
>>   
>>  
>>  
>>  
>> In a message dated  5/2/2016 1:39:27 P.M. Mountain Standard Time,  
>> epvgk at limpoc.com  writes:
>> 
>> Hi Folks  - 
>> 
>> The CL adapter  boards are available and I'm adding them to the 
>Square 
>> online  store 
>> inventory as I get them programmed and QA'd. The   production and QA 
>> departments are 
>> both staffed by lazy,  shiftless  employees, all of which are me, so
>if 
>it 
>> shows as  
>> being out of stock, just  try again later. I'll update if/when  all
>80+ 
>are 
>> really
>> sold  out.
>> 
>> Price is  dropped from $40 to $37 and I'm trying for next business 
>day 
>>  shipping if
>> possible, depending on the line at the post office on  my  way to
>work or 
>if 
>> i get
>> swamped.
>> 
>>  Store URL is:  https://squareup.com/store/epv-greenkeys
>> 
>>  Documentation, source code,  buglist, etc are at: 
>>  http://heepy.net/index.php/USB-teletype
>> 
>> There are  also  a few RTTY demod boards left, if you missed out last
>
>time. 
>> NOTE:  If  you want an item and aren't in the US, email me. Square 
>doesn't  
>> appear to  
>> handle international sales in any useful  way. We'll figure something
>
>out.  
>> 
>> I was hoping to be  able to include a USB cable, but didn't manage to
> 
>find 
>> a  
>> reasonably priced bulk option so you will need to have or get a  USB 
>
>Mini-B 
>> cable  like:
>>  http://www.amazon.com/AmazonBasics-USB-2-0-Cable--Male/dp/B00NH13S44
>>  
>> Thanks,  
>> eric
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