From Newsgroup: comp.sys.raspberry-pi

I am completely clueless software wise, these days, but 40 years ago I
could manage to get by....

A few years ago, with a lot of help, I somehow managed to muddle through
set up a Rpi, to log my weather stations data, which it still continues
to do, to this day. It appears as neat values, and graphs, as a series
of webpages, in cumulusmx. That, from vague memory, is a Rpi 3 B.

I now want to tap into the ebus data, of my Vaillant heating system, and control system. Towards this end, I have ordered a ebus, to wifi
adaptor. One of these - https://www.elecrow.com/ebus-to-wifi-adapter-module-v5-2.html

I'm fine with setting that up, configuring it to my LAN etc., just
struggling with the next steps...

It's been suggested I need a second Rpi, dedicated to the data
collection from the ebus, something about installing ebusd on it, to
translate the data, plus some higher level system, to display and
collate the data? Home Assistant, or similar, but I don't need anything
fancy, or difficult to set up, and many experts seem to struggle.

Which of the many Rpi models do I need for this, what memory, and what
sdcard please?

Anyone able to explain to an idiot, and in simple terms, how to set it
all up?

A usefull extra, would be what I think might be called a mini-NAS. Just
a USB stick plugged into one of the Rpi's, able to store files,
accessible to any PC on my network..
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From Newsgroup: comp.sys.raspberry-pi

On 26/01/2025 15:24, Harry Bloomfield Esq wrote:

Which of the many Rpi models do I need for this, what memory, and what sdcard please.

Anyone able to explain to an idiot, and in simple terms, how to set it
all up?

A usefull extra, would be what I think might be called a mini-NAS. Just
a USB stick plugged into one of the Rpi's, able to store files,
accessible to any PC on my network..

I spotted a bunch of used Pi 5's complete with PSU, and so bought one. I
set that up with Bookworm, on a SD card, then hit another snag. I lacked
any way to connect it to a display. I needed a micro HDMI to HDMI cable...

Ordered one up, got delivered, tested it with an old TV, and blank
screen. Tthen tested it on a more modern TV, still blank, using the port
near the power port on the Pi, but using the port further away from the
power port, I got a display. Is that normal?

USB bluetooth dongle, keyboard and mouse - worked fine.

I am going to retry the old TV, later, using the port I now know works,
though I thought I had tried both ports with the old TV..
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From Newsgroup: comp.sys.raspberry-pi

On 01/02/2025 18:31, Harry Bloomfield Esq wrote:

I spotted a bunch of used Pi 5's complete with PSU, and so bought one. I
set that up with Bookworm, on a SD card, then hit another snag. I lacked
any way to connect it to a display. I needed a micro HDMI to HDMI cable...

Ordered one up, got delivered, tested it with an old TV, and blank
screen. Tthen tested it on a more modern TV, still blank, using the port near the power port on the Pi, but using the port further away from the power port, I got a display. Is that normal?

No, but the micro HDMI sockets are fragile, especially if a heavy
adapter is used to connect a full sized cable, instead of using a
specific micro HDMI cable.

It's probably why the machines were being sold off, but if you only
intend to use one display, it shouldn't be a problem.

---druck
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From Newsgroup: comp.sys.raspberry-pi

On 03/02/2025 21:24, druck wrote:

No, but the micro HDMI sockets are fragile, especially if a heavy
adapter is used to connect a full sized cable, instead of using a
specific micro HDMI cable.

It's probably why the machines were being sold off, but if you only
intend to use one display, it shouldn't be a problem.

Both are working. What I didn't understand, about HDMI, was that the
display need to be on before the Rpi. Rpi 'talks' to the display, whilst setting up, to enquire what the display resolutions it supports. If it
doesn't get the replay, the Rpi doesn't activate the HDMI output - or at
least that seems the way it is..
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From Newsgroup: comp.sys.raspberry-pi

On 2025-02-12, Harry Bloomfield Esq <harry.m1byt@outlook.com> wrote:

Both are working. What I didn't understand, about HDMI, was that the
display need to be on before the Rpi. Rpi 'talks' to the display, whilst setting up, to enquire what the display resolutions it supports. If it doesn't get the replay, the Rpi doesn't activate the HDMI output - or at least that seems the way it is..

The DDC EEPROM in the monitor *should* be powered by the pi via the HDMI
cable, so having the monitor plugged in should be enough - it does not
have to be powered on.

cu
Michael
--
Some people have no respect of age unless it is bottled.
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From Newsgroup: comp.sys.raspberry-pi

On 12/02/2025 20:48, Michael Schwingen wrote:

The DDC EEPROM in the monitor*should* be powered by the pi via the HDMI cable, so having the monitor plugged in should be enough - it does not
have to be powered on.

This was an older TV set, with an HDMI input..
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From Newsgroup: comp.sys.raspberry-pi

On 2025-02-14, Harry Bloomfield Esq <harry.m1byt@outlook.com> wrote:

The DDC EEPROM in the monitor*should* be powered by the pi via the HDMI
cable, so having the monitor plugged in should be enough - it does not
have to be powered on.

This was an older TV set, with an HDMI input..

IIRC, that was in the HDMI standard from the beginning (like on analog VGA
when DDC was introduced), but of course there are devices that ignore parts
of the standard.

cu
Michael
--
Some people have no respect of age unless it is bottled.
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