[chbot] HEX and ANSII ATMEGA and Delphi

[Andrew Starr]

Whoops, forgot to 'reply list'...

How about base64? Less overhead than "direct" ASCII, no issues with sign

On 24/10/20 9:05 am, Marshland Engineering wrote:
> I'm a bit stuck here. I want to send hex data from an Atmega to my PC. I have
> a com port component for Delphi which receives Ansii fine. I can see the
> comport RX signal flicking ie receiving data in hex format, but I don't know
> how to convert it into something I can use/display.
>
> Currently I have been using the c itoa function, but I have sign issues and it
> takes longer to send 65000 than FF so was hoping to go the hex route.
>
> I presume all higher level programs will have similar issues.
>
> Thanks Wallace.
>
>
>
> --
> Thanking you
> Wallace Weideman
> Marshland Engineering
> 704 Marshland Road
> Styx
> Christchurch
> 03 3237449
> www.marshland.co.nz
>
>   
>
> On 24/10/2020 at 12:00 a.m., chchrobotics-request at lists.ourshack.com wrote:
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>>    1. Re: PCBs update (David Closey)
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>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Fri, 23 Oct 2020 19:02:30 +1300
>> From: David Closey <david.closey at gmail.com>
>> To: Christchurch Robotics <chchrobotics at lists.ourshack.com>
>> Subject: Re: [chbot] PCBs update
>> Message-ID: <151DEB16-9F33-4DE0-9C20-A95CFD809FE5 at gmail.com>
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>> Russell
>>
>> What a Fantastic method
>> Sorry I also missed the talks this month
>> I have played with all sorts of methods over the years including dry film of
> late
>> Although commercial PCB’s are quite affordable now
>> It is very satisfying to be able to knock up a prototype from idea to board
> in a weekend
>> I’m definitely going to try the method you describe
>>
>> What is the source of the photo resist ??
>> I had a quick google "PER-20” but nothing popped up
>>
>>
>> David Closey
>>
>>
>>
>>
>>> On 22/10/2020, at 17:43, Volker Kuhlmann <list57 at top.geek.nz> wrote:
>>>
>>> On Thu 22 Oct 2020 08:57:56 NZDT +1300, Russell & Heather Phillips wrote:
>>>
>>> [...]
>>>
>>> That sounds all very interesting. Sorry I missed the talk.
>>>
>>> Would you be able to give some dimensions of details that can be
>>> achieved with this method?
>>>
>>> It looks very similar to what we did in the
>>> 1980s at home, although without machinery like lathes. We dropped
>>> iron(III)chloride for etching in favour of sodiumhydroxide (I think, not
>>> totally sure any more now). It's also possible we added a little
>>> hydrochloric acid. It was less of a mess than ironchloride and perhaps a
>>> little safer.
>>>
>>> Recently I heard some artists warn that etching metal with those kind of
>>> chemicals does eventually erode your teeth. That might be plausible when
>>> breathing the vapours and having a dry mouth, so ventilation and
>>> drinking (not the etching solution) might be wise.
>>>
>>> Volker
>>>
>>> -- 
>>> Volker Kuhlmann
>>> http://volker.top.geek.nz/	Please do not CC list postings to me.
>>>
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