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by dustnbone
Sun Nov 10, 2019 1:47 am
Forum: Beginners
Topic: Choose: video on USB-C with PoE **OR** video on eth with official power supply
Replies: 33
Views: 1092

Re: Choose: video on USB-C with PoE **OR** video on eth with official power supply

It's really much simpler than that. The dongles aren't actively encoding and decoding the video signal in the digital sense, they merely alter the electrical characteristics to better suit the physical medium they're being transmitted across. Most of the ones that I've come across adhere to a standa...
by dustnbone
Sat Nov 09, 2019 9:19 pm
Forum: General discussion
Topic: Using Raspberry Pi 3B+ with UPS - need 15 hour autonomy
Replies: 8
Views: 601

Re: Using Raspberry Pi 3B+ with UPS - need 15 hour autonomy

The problem here isn't the actual capacity of the UPS, it stores orders of magnitude more power than you actually need to run the Pi for that amount of time. The problem here is massive overkill. The UPS itself is using almost all of the power, between it's control systems, battery monitoring, commu...
by dustnbone
Sat Nov 09, 2019 6:49 pm
Forum: Beginners
Topic: Choose: video on USB-C with PoE **OR** video on eth with official power supply
Replies: 33
Views: 1092

Re: Choose: video on USB-C with PoE **OR** video on eth with official power supply

Thing is, they're not really "Ethernet" devices at all. They're not compliant with any Ethernet standard, they merely use a cable specification that is also commonly used to carry Ethernet. It would be more accurate to call them "HDMI to Cat6", but since most people would have no idea what that mean...
by dustnbone
Sat Nov 09, 2019 6:39 pm
Forum: Beginners
Topic: Rpi4 questions about power supplies and performance for a media server and home automation hub
Replies: 3
Views: 264

Re: Rpi4 questions about power supplies and performance for a media server and home automation hub

If what you're after is lots of reliable 5V I'd recommend something like this https://www.sparkfun.com/products/14098 That ones got some voltage adjustment so you could boost it to 5.1 or 5.2V to keep the Pi happy. You could probably get by with a much smaller one for your application, look for an i...
by dustnbone
Thu Nov 07, 2019 3:26 pm
Forum: Troubleshooting
Topic: Can access via \\Raspberrypi, also can see (and use) my shared Samba folder. Can't access via internal IP (wlan0)
Replies: 5
Views: 197

Re: Can access via \\Raspberrypi, also can see (and use) my shared Samba folder. Can't access via internal IP (wlan0)

Can you verify IP connectivity by pinging the Pi from the Windows box? Have you configured Samba on the Pi to share folders? I don't think it does this by default in Raspbian. How are you connecting through Windows Explorer? Are you manually entering a //SERVER/share address or trying to browse to i...
by dustnbone
Wed Nov 06, 2019 11:19 pm
Forum: Beginners
Topic: Compact Power Supply for Pi and Hat
Replies: 3
Views: 561

Re: Compact Power Supply for Pi and Hat

Connecting to the 5V and GND on the expansion header should be fine for your application, if you run into issues with low voltage on the Pi you could do the splice instead. Either one will work fine, just make sure you pay attention to polarity when making your connections.
by dustnbone
Wed Nov 06, 2019 6:22 pm
Forum: Troubleshooting
Topic: sabnzbdplus disappears after starting
Replies: 9
Views: 1153

Re: sabnzbdplus disappears after starting

Yeah it looks like just a config issue on the sabnzbd side. Keep in mind that localhost address will only work from the Pi itself, if you're trying to access it from another PC on the local network you'll need to replace localhost with the IP address of the Pi. The default configuration might not al...
by dustnbone
Wed Nov 06, 2019 5:49 pm
Forum: Troubleshooting
Topic: sabnzbdplus disappears after starting
Replies: 9
Views: 1153

Re: sabnzbdplus disappears after starting

It appears the daemon is running now, you should be able to see the Sabnzbd WebUI at https://localhost:8080 assuming you haven't changed it's default configuration. At this point it's more a Sabnzbdplus issue rather than a Pi one, you'll probably get better support there. I haven't used Sab in years...
by dustnbone
Wed Nov 06, 2019 3:51 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 562
Views: 243945

Re: Raspberry Pi 4 temperature

If there's really no clearance then you could try using a thermal paste compound instead of the pad.
by dustnbone
Wed Nov 06, 2019 12:49 am
Forum: Troubleshooting
Topic: sabnzbdplus disappears after starting
Replies: 9
Views: 1153

Re: sabnzbdplus disappears after starting

Check the sabnzbdplus logs. I'm pretty sure they're in ~/.sabnzbd/logs by default, ~ being the home folder of the user sabnzbd is running as.
by dustnbone
Tue Nov 05, 2019 11:35 pm
Forum: Troubleshooting
Topic: Sudden drop in network speed
Replies: 17
Views: 1962

Re: Sudden drop in network speed

Could it possibly be related to the dhcpcd issues discussed here? https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=255887 I was having similar slowdowns the other day, noticed dhcpcd pulling 100% of a CPU core. Disabling dhcpcd fixed it for me, I didn't troubleshoot it any further because I d...
by dustnbone
Tue Nov 05, 2019 10:50 pm
Forum: Beginners
Topic: USB Display for Raspbian Lite
Replies: 6
Views: 871

Re: USB Display for Raspbian Lite

You are correct, they are unrelated.

After reading this

https://support.displaylink.com/knowled ... spberry-pi

it does indeed appear that best case it only provides an X screen and not a virtual tty, and has several other limitations.
by dustnbone
Tue Nov 05, 2019 10:32 pm
Forum: Beginners
Topic: Compact Power Supply for Pi and Hat
Replies: 3
Views: 561

Re: Compact Power Supply for Pi and Hat

You could just use a single large 5V supply, as that's the operating voltage of both the Pi and the servo controller. The page you linked to for the servo board shows a 5V 4A supply on the right as a suggested item, that is probably sufficient but if you're planning to run many/large servos and/or o...
by dustnbone
Tue Nov 05, 2019 9:44 pm
Forum: Beginners
Topic: USB Display for Raspbian Lite
Replies: 6
Views: 871

Re: USB Display for Raspbian Lite

If you're unable to get the USB adapter working, and you're not using the HDMI port, there are HDMI to DisplayPort adapters available. They're generally active converters (require a power source), but should present themselves as an HDMI display to the Pi. I'm guessing the performance and system loa...
by dustnbone
Tue Nov 05, 2019 8:30 pm
Forum: Beginners
Topic: My RP2 shows the video extremely slow while my RP4 shows it perfectly
Replies: 4
Views: 814

Re: My RP2 shows the video extremely slow while my RP4 shows it perfectly

If you run omxplayer -i <filename> it will give you a readout of information on the file.

Particularly the section labelled "Stream #0:0" will tell us the specific codec, bit depth, frame rate, bitrate, resolution, etc.
by dustnbone
Tue Nov 05, 2019 2:56 am
Forum: Beginners
Topic: Internet through phone hotspot
Replies: 1
Views: 371

Re: Internet through phone hotspot

No, the phones wifi hotspot doesn't interact with the phone's internal filesystem at all. It simply passes network traffic between the 2 interfaces, performing some address translation along the way. Android and iOS are both very good at isolating tasks like this from other parts of the system, by o...

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