[GreenKeys] USB to 45 baud adapter

[Paul Heller]

Thanks for the update. I have a bunch of those Chinese knockoffs. I got tired of trying. It’s good to know that you found something that would work.


Paul
W2TTY

> On Mar 11, 2024, at 6:45 PM, Paul Wills (CKT&T) <pdwills at cedarknolltelephone.com> wrote:
> 
> Greetings,
> 
> As Windows 10 is rapidly reaching end of support, I started thinking about how I would replace my desktop.  Unfortunately, nothing comes with a serial port and if anything does, it's probably not the same UART as found in an older PC.
> 
> I knew about the Silicon Laboratories CP2102 and actually bought a couple of their development kits.  The CP2102 allows a user to set an "alias" baud rate that can go as low as 45 baud. Unfortunately, the development kits are a bit costly at more than $40 per unit.
> 
> I did a lot of Google searching and tried a few USB to serial adapters made for the hobby market.  Unfortunately, most of the "CP2102" UARTs appear to be Chinese knock-offs that mostly act like the Silabs units but they don't support 45 baud.
> 
> Eventually, I came across Pololu Robotics who actually carries a USB to TTL adapter with the "real" Silabs* chip.  At $15 each, I bought four of them just to make sure I had a couple spares as the CP2102 is being discontinued and replaced with the CP2102N which does not support 45 baud.  They worked so well, I might buy a few more.
> 
> https://www.pololu.com/product/391
> 
> One needs the CP210xBaudRateAliasConfig.exe program to change the baud rate.  Silabs also has a configuration program that is supposed to change the baud rate but I couldn't get it to work. They don't currently make CP210xBaudRateAliasConfig available but I can provide it for those who need it.
> 
> Right now, there are 119 in stock.  I wouldn't bet that they would make any more.
> 
> I have nothing to with Pololu Robotics other than being a satisfied customer.
> 
> PDW
> 
> *I think they were actually insulted when I mentioned the knock-off chips because they proudly said that their converters are made in the USA with parts sourced from the proper manufacturers.
> 
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
> 
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to paul0926 at comcast.net