If only I could find ~30 Raspberry Pi4, I'd use them for a digital signage system. (For availability tips or suggestions, I would be very grateful!)
If its just digital signage why not use RPi3s?
Ask HN: How are you using your Raspberry Pi?
61–70 of 76 posts
Re: Ask HN: How are you using your Raspberry Pi?
#62I won mine in a quiz competition, so I didn't have any special project thought out for it beforehand. I ended up using it as a piano synth: running Pianoteq and hooking it up to a digital piano, it gives much better sound than the digital piano's built in sound (and far more flexibility). I was worried about latency, and that I would have to overclock it (the guides I read on the net suggested I would have to). Laten…
Yeah, the RPi is known for having a somewhat crappy built-in audio adapter. I was doing some stuff with speech synthesis using espeak-ng, and using the built in interface it was basically unusable. Now to be fair, the espeak-ng voices aren't that great to begin with... but they're usable on decent hardware! I switched to an external USB sound card and that made a dramatic difference. It's back to where the default English voice sounds kinda like WOPR from War Games, and some of the mbrola voices actually sound reasonable.
Re: Ask HN: How are you using your Raspberry Pi?
#63I have two Pi Zero/W with hard drives connected to them. I scp video files to them. I wrote https://github.com/daltontf/omxserver to allow those files to be played back via a web interface.
Re: Ask HN: How are you using your Raspberry Pi?
#64I've got one of mine collecting weather data https://github.com/bediger4000/station I'm hoping to detect the "tide" in the atmosphere with barometric pressure readings, but I haven't done anything towards that. I'd also like to have an automated way to pick out high/low temperature for the day. I've got 2 thermometers taking temperatures. There's data loss caused by both sensors quitting and operational issues, so I…
I've got mine collecting dust in a drawer along with a few other impulsive purchases (why did a buy a jar of ferromagnetic fluid again?). I'm a few months into 3d printing I'm seeing the value of using an RPi as a print server to monitor long prints. Now that I see how it could make my life a little easier I'm more motivated to get it set up.
Re: Ask HN: How are you using your Raspberry Pi?
#65If only I could find ~30 Raspberry Pi4, I'd use them for a digital signage system. (For availability tips or suggestions, I would be very grateful!)
If its just digital signage why not use RPi3s?
Mostly because software was designed as a burnable ISO image tailored to Pi4 specs. I could also make a Pi3 version, but availability looks quite the same if not worse.
Re: Ask HN: How are you using your Raspberry Pi?
#66Not particularly creative, but I have two in use (both rPi 4s):
- running Carbide Motion to control a CNC - running a backup of a wiki and forum which was taken off-line so that I can refer to it
I really should set up a media/file server and work up a suitable backup strategy.
Re: Ask HN: How are you using your Raspberry Pi?
#67I use mine mostly for educational pursuits. For example, I have a clusterHAT with a bunch of Zeros on it, which I used to learn MPI. I also use a pi as a home central server, and other pis for related things around that. I actually love using the Pi4 with 8G RAM as a desktop with two monitors. I'm not a gamer, so I don't feel any lag. Lately I've been re-learning a lot of my old electronics project material with the…
Does it actually work as a desktop? I heard it can't even play youtube vids witout lag
Re: Ask HN: How are you using your Raspberry Pi?
#68- Pi 4 to relay data from 433/915MHz weather station/temp/humidity sensors to MQTT using three SDRs and RTL_433 (consumed by Home Assistant, but could be read my anything subscribed to MQTT topic). One SDR for each 433/915MHz and a third that cycles between scanning 315, 345, and 868MHz every half hour.
- Two Pi 4s used as secondary DNS servers (with RPZ for blocking crap like Pi-Hole but using ISC BIND) for home network (fed from hidden primary).
- Pi 4 as a Linux workstation
- Pi 2 as a proxy between my solar inverter and WAN to intercept/decrypt traffic containing panel optimizer data not available from API
- Pi Zero W as serial console server.
Re: Ask HN: How are you using your Raspberry Pi?
#69I created a little DIY web-based dashboard that displays on my TV. I have a tiny bit of Python that runs on startup that turns on my TV via an API, then launches Chromium in kiosk mode and loads my webpage written in Elm.
I have nicely tiled widgets with CSS grid that displays real-time bus arrivals and current hourly weather forecast. I'm going to add live streams from my IP cameras around my place. Some kind of calendar widget would be nice too, to remind me of important events at a glance.
Re: Ask HN: How are you using your Raspberry Pi?
#70Y'know, I still don't own a Pi. And I feel really guilty about it ...
Sadly now is not the best time to get started, as Pi prices and availability are in a Bad Place due to the Chipageddon[1] situation. [1]: https://www.theguardian.com/books/2021/aug/27/chipageddon-ho...
Sometimes, procrastinating can be a good thing :-)