Hi Paul
Your clock is lovely. Glad that I able to help in some way.
I used (9 years ago!) DXF format for my graphics and now reading about
SVG it looks to be a superb format for scope clock fonts and graphics. I
look forward to seeing the evolution of your clock!
Grahame
On 26/02/2024 09:12, paulvr wrote:
This is my first post in this forum and I would like to introduce you
to my version of the scope clock. Mainly inspired by the work of David
Forbes and Grahame Marsh.
The work is not finished yet, but I have reached a milestone for
myself in that all components are on one PCB and only one voltage
source is required, nm. 12 volts DC.
The high voltage is made using a standard Würth WE-flex transformer,
plus and minus 250 Volt. The filament voltage is provided by a buck
and forward converter and a standard Würth push-pull transformer (6.3
Volt to 600mA).
The MCU is an STM32G491, mainly chosen because of the integrated
12-bit DACs. The image composition is completely DMA controlled and
works independently of the CPU, which therefore has a lot of time for
other tasks.
The characters and graphic shapes are encoded as SVG path.
An ESP32 has been added to achieve the correct time according to the
NTP. Operation is entirely via a web server running on the ESP32. The
software is not finished, and not all functions work (work in progress).
The next step is to try out other CRT tubes and make a housing.
Regards,
Paul
--
You received this message because you are subscribed to the Google
Groups "neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send
an email to neonixie-l+unsubscr...@googlegroups.com.
To view this discussion on the web, visit
https://groups.google.com/d/msgid/neonixie-l/4e60fa43-a9b5-40b5-8381-5a968b45d480n%40googlegroups.com
<https://groups.google.com/d/msgid/neonixie-l/4e60fa43-a9b5-40b5-8381-5a968b45d480n%40googlegroups.com?utm_medium=email&utm_source=footer>.
--
You received this message because you are subscribed to the Google Groups
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to neonixie-l+unsubscr...@googlegroups.com.
To view this discussion on the web, visit
https://groups.google.com/d/msgid/neonixie-l/e53f3a09-8b8c-4ee3-b775-22d07563a21b%40googlemail.com.
