Raspberry Pi - Who's gonna have a dabble?
Discussion
LordGrover said:
Retro 
Can we have a tiddly little printer that prints on silver paper too, please?
https://www.ers-online.co.uk/o22384/c31ch51012-eps...Can we have a tiddly little printer that prints on silver paper too, please?
OK, maybe not silver but it is a thermal printer so your listings will fade to nothing over time...
https://www.reddit.com/r/homelab/comments/jm3oja/m...
Four Raspberry Pi4s with custom heatsinks in a POE enclosure and running a Kubernetes cluster, it looks really cool but other than media and POSTGRES SQL server I no idea what I'd build it for. That's assuming I had the skills!
Four Raspberry Pi4s with custom heatsinks in a POE enclosure and running a Kubernetes cluster, it looks really cool but other than media and POSTGRES SQL server I no idea what I'd build it for. That's assuming I had the skills!
ATG said:
For that full Sinclair experience, I wonder if they could make one with a membrane keyboard that requires a 1000psi shove to register a keystroke?
It also needs a port to connect a mono portable tape recorder in order to save the programme that you spend many hours writing. But it absolutely must ensure that it corrupts the data as it goes....Comacchio said:
Thinking about throwing together a Pi CCTV system when we move to our new house. Probably talking 6 or 7 cameras, not sure if it would just be cheaper and easier long term to buy a system in instead. Haven't fully planned it as yet.
Most of the cctv cameras run Linux. You can redirect the stream to another address which means you can store or forward as required. In case you hadn't spotted it, the latest release of RPi OS now includes a temperature-controlled fan setting in the Configuration utility.
I guess it's primarily intended for the foundation's new case fan, though I had a small fan fitted to my "4" anyway. That ran constantly, but with just one transistor and one resistor it now runs only when needed.
(Same circuit as turning on a LED via GPIO; lots of examples on the web).
I guess it's primarily intended for the foundation's new case fan, though I had a small fan fitted to my "4" anyway. That ran constantly, but with just one transistor and one resistor it now runs only when needed.
(Same circuit as turning on a LED via GPIO; lots of examples on the web).
Did anyone already had a go at using a UPS for the raspberry pi?
I would mainly get one to cover power outages, as these tend to affect the SD cards in some cases. (so wouldn't need very large battery capacity)
I've seen a couple of possibilities, such as PiJuice etc, but have no idea which one actually works.
For my case, I'd be added to a Pi Zero W with a heat sink (about 48mm high).
I would mainly get one to cover power outages, as these tend to affect the SD cards in some cases. (so wouldn't need very large battery capacity)
I've seen a couple of possibilities, such as PiJuice etc, but have no idea which one actually works.
For my case, I'd be added to a Pi Zero W with a heat sink (about 48mm high).
I have had 2 different brands based on a hat design and neither worked well. There's a lot of rubbish out there. I'm still looking for a reliable one that will provide a safe shutdown signal and then auto restart. I have a homebrew house automation and security monitoring system. Not that I've had to use it much this year...
Would a normal phone 'powerbank' not work? Just leave it in line, would surely power a Pi for a few hours until the power came back on?
Obviously any power bank needs to be able to charge and output power at the same time
ETA found some detail, https://raspi-ups.appspot.com/en/index.jsp
Obviously any power bank needs to be able to charge and output power at the same time
ETA found some detail, https://raspi-ups.appspot.com/en/index.jsp
Edited by megaphone on Friday 18th December 17:44
I did look at the possibility in the link you provided a long time ago. Problem for me is the location. I have concrete floors and ceiling and have to use wifi for comms to all the units, so that solution is not going to work. Plus it's a bit of a hash up. I looked at powerbanks as well. Two issues there. They have to be capable of simultaneously charging and discharging as well as being able to handle the max load. I haven't found one yet that can meet my specs. I am now searching a standard SLA unit which can provide some kind of signal to the Raspi, but the issue there is that they tend to be gigantic in comparison or to build some hardware to my spec which I really don't want to do given my history of releasing the magic smoke.
Any other suggestions or info products that I might have missed are welcome.
Any other suggestions or info products that I might have missed are welcome.
After some reading, I found that the ZMI PowerPack 10000 can simultaneously charge and discharge and should work with the Pi Zero based on some info I found online. I've ordered one and will report back. Although it cannot shot down gracefully, I think it should be sufficient to cover temporary power outages (especially as I run only Pi-Hole on the Pi Zero, combined with a USB to Ethernet dongle).
Will report back if anyone's interested in my findings.
Will report back if anyone's interested in my findings.
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