Perhaps cheaper still, a Raspberry Pico. Those go for $4, which even for the
smaller Arduinos is hard to beat.
paul
> On Nov 11, 2022, at 4:29 PM, Nigel Johnson Ham via cctalk
> <cctalk@classiccmp.org> wrote:
>
> Or even cheaper, and Arduino uno
>
> cheers,
>
> Nigel
>
>
> Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU
> Amateur Radio, the origin of the open-source concept!
> Skype: TILBURY2591
>
>
> On 2022-11-11 16:24, Bill Degnan via cctalk wrote:
>> not that it's easy but a raspberry pi could be set up to watch the serial
>> line.
>>
>> On Fri, Nov 11, 2022 at 4:16 PM W2HX via cctalk<cctalk@classiccmp.org>
>> wrote:
>>
>>> Hello all,
>>>
>>> I am looking for a device that sits transparently in an RS-232 serial line
>>> and upon seeing a particular code go over the serial line ((or sequence of
>>> codes) will actual a relay (or a transistor). Something with two DB25s or
>>> DE9s and is configurable to what code will trigger the output? Some kind of
>>> box?
>>>
>>> Does anyone know of such a thing? I guess it could be cobbled up with a
>>> microcontroller, but hoping to just get something "off the shelf."
>>> Thank you
>>>
>>> 73 Eugene W2HX
>>> Subscribe to my Youtube Channel:https://www.youtube.com/@w2hx
>>>
>>>
>>>
>>>
