RS232

Everything about 41C 41CV and 41CX Hardware

RS232

Postby Duncan » Wed Apr 14, 2021 7:39 pm

Hi All
Not sure if this is the correct section but just a heads up on using the PIL-IO box for RS232.
For a lower cost alternative to the HP-IL-RS232 interface, I have found a rather nifty little module by Digilent model PmodRS232 UART-RS232 Converter Module. This module converts UART to RS232, just connect to the UART output of the PIL-IO box and you have RS232 level signals out i.e. a HP-IL to RS232 Interface! Successfully used to control a RS232 plotter.

RS Components 134-6444 £11.66

I do have a document with pictures if anyone wants to see it let me know me your email address and I will send it.

Duncan
Duncan
.......
.......
 
Posts: 36
Joined: Sat Nov 09, 2019 5:40 pm

Re: RS232

Postby Garth » Wed Apr 14, 2021 9:07 pm

That seems like a lot to pay when a $2 SN75C1406 triple line driver and receiver IC (same thing as the MC145406) and a $.50 connector would do, or the 1488 line driver and 1489 line receiver which I've seen as low as $.29 each. However, I spent something like $150 decades ago for the FSI164A HPIL-to-RS232 interface converter which is almost identical to the more-expensive HP82164A, except the FSI unit came with two RS-232 channels standard, and optionally up to eight, and could also optionally run on battery power. I used it a lot in the early years, and continue to use it occasionally, and probably will use it for a work project this month.
Garth
Moderator
Moderator
 
Posts: 267
Joined: Tue Jan 20, 2009 1:31 am

Re: RS232

Postby Duncan » Thu Apr 15, 2021 5:25 am

Hi Garth
Well yes I do agree about the initial price but it comes all packaged and 'plug n play' and is still a lot cheaper than the 82164A and when using discreet components there is the extra cost of moving from the breadboard to a 'practical' implementation. Furthermore, used with the PIL-IO the option for using GPIO is also there providing application flexibility in a practical package.
Duncan
Duncan
.......
.......
 
Posts: 36
Joined: Sat Nov 09, 2019 5:40 pm

Re: RS232

Postby floppy_stuttgart » Mon Apr 26, 2021 1:39 pm

Duncan wrote:Hi Garth
Well yes I do agree about the initial price but it comes all packaged and 'plug n play' and is still a lot cheaper than the 82164A and when using discreet components there is the extra cost of moving from the breadboard to a 'practical' implementation. Furthermore, used with the PIL-IO the option for using GPIO is also there providing application flexibility in a practical package.
Duncan

this one?
https://de.rs-online.com/web/p/entwickl ... s/1346444/
floppy_stuttgart
.........
.........
 
Posts: 88
Joined: Mon Mar 29, 2021 2:36 pm


Return to HP-41 Hardware

Who is online

Users browsing this forum: No registered users and 1 guest

cron