[Swlug] Morse code project

Colin Law clanlaw at gmail.com
Sat Mar 26 21:45:56 UTC 2022


On Sat, 26 Mar 2022 at 01:23, Rhys Sage via Swlug
<swlug at mailman.lug.org.uk> wrote:

I am missing something here...

>
> At the moment I'm building a QRP Pixie shortwave transceiver. It'll produce likely an analogue audio output.

So the transceiver will produce an analogue audio output.

> I'll need to feed that into a Raspberry Pi.

which you need to feed to a Pi

> Do I need to use a digital to analogue converter

If the transceiver will produce an analogue output what do you want a DAC for?

Colin

>  and has anybody any pointers? I realise I'm jumping around on various projects. It's how I do things.
>
> Transmission is blindingly simple - I'd just put an optically-isolated DC relay on the GPIO and use that to close the key on the transmitter. Even the Python code for that is straightforward. Reception and turning the input signal into something recognisable as Morse is a lot harder.
>
>
>
> Rhys Sage
>
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