Search found 294 matches
- Mon Mar 19, 2018 2:28 pm
- Forum: Automation, sensing and robotics
- Topic: Linux Development Board which supports two cameras
- Replies: 3
- Views: 890
Re: Linux Development Board which supports two cameras
I was looking for similar board, and probably the cmio3 + cm3 is best bet (approx $114 + $54 for cm3 ... approx $114 + $28 for cm3 lite). I think the cm3 lite has both camera slots (one 4 lane, one 2 lane), so might be cheaper option (mods can correct me on this). Only other alternative in range tha...
- Sun Mar 18, 2018 11:01 pm
- Forum: Networking and servers
- Topic: Raspberry pi 3 as AP using strictly wifi
- Replies: 4
- Views: 1157
Re: Raspberry pi 3 as AP using strictly wifi
Are you saying you have no ISP-provided WiFi-to-internet router to make a connection from your Pi AP device? Are you needing public internet access for users of the AP, or is your local webpage all you need?
- Sun Mar 18, 2018 5:03 pm
- Forum: Other projects
- Topic: rtl_fm SDR dongle Scanner
- Replies: 3
- Views: 2056
Re: rtl_fm SDR dongle Scanner
I've noticed that other people using utility voice narrow band FM are also using these in their command line:
12k sample rate for narrow band
70 squelch level
Have you played with the squelch level?
Code: Select all
-s 12k
-l 70
70 squelch level
Have you played with the squelch level?
- Sun Mar 18, 2018 4:21 pm
- Forum: General discussion
- Topic: Choosing a Monitor
- Replies: 11
- Views: 1348
Re: Choosing a Monitor
Regardless of the adapter you're using, the Pi can probably be made to work with it (and your monitor). You might need to use a custom configuration in your config.txt file. I used something like this when I had an hdmi-to-vga adapter: hdmi_drive=1 hdmi_ignore_edid=0xa5000080 hdmi_group=2 hdmi_mode=...
- Sun Mar 18, 2018 3:57 pm
- Forum: Networking and servers
- Topic: Server monitor
- Replies: 8
- Views: 3185
Re: Server monitor
Have you done anything more with this? I've been looking for such a thing as what you describe for quite a while. The usual intrusion detection tools are very verbose and can deep-packet mine, but they're not very good at pattern matching or more intelligent observation of machine state. I even thou...
- Mon Mar 12, 2018 8:18 pm
- Forum: General discussion
- Topic: High range WiFi dongle
- Replies: 8
- Views: 6377
Re: High range WiFi dongle
@jeanleflambeur thank you very much for detailed answer :) I also planned that maybe just for start and first tests I will grab some Access Point with bigger antennas and power it from my car, so it should work for higher range. @elmo180 Having said these, you might be better of with something like...
- Tue Feb 06, 2018 3:45 pm
- Forum: General discussion
- Topic: Accessing a Pi via Wi-Fi
- Replies: 5
- Views: 889
Re: Accessing a Pi via Wi-Fi
Hi @balanga (freebsd)! You won't need any routing, and you could do what you want to do without using HostAP (the airport connection), but it'd be very insecure in my non-expert opinion. It's better to use the access point method, IMO, and do it pretty much the way it's described in the referenced d...
- Thu Jan 25, 2018 8:42 pm
- Forum: Networking and servers
- Topic: Server monitor
- Replies: 8
- Views: 3185
Re: Server monitor
Would this be using AI, or some other means of pattern analysis?
- Thu Jan 25, 2018 8:39 pm
- Forum: Automation, sensing and robotics
- Topic: RSSI signal strength
- Replies: 7
- Views: 5371
Re: RSSI signal strength
This thread is a little bit dated, and probably the author has already figured out how to do his setup. But, FWIW, when I've played with RSSI it's been my impression that the values are not always consistent for the same distance. It probably has to do with reflections and absorption, etc. I wonder ...
- Tue Jan 23, 2018 3:40 pm
- Forum: General discussion
- Topic: Vivaldi Web Browser - Raspberry Pi
- Replies: 22
- Views: 9085
Re: Vivaldi Web Browser - Raspberry Pi
One thing that can never be said about old Opera or new Vivaldi users: and that's that they're not really big fans. For me, the new browser is "OK" - and I've noticed no significant problems in about two weeks of usage. Another nice thing is that the same Vivaldi build works just as well o...
- Tue Jan 23, 2018 3:29 pm
- Forum: Off topic discussion
- Topic: Something new
- Replies: 10
- Views: 3899
Re: Something new
It would be great to have some semi-permanent memory on board RasPi. A note of disagreement here. Having no non-volatile memory (modulo a small handful of OTP bits) is ideal for support and troubleshooting. It means that every machine is, prior to power-on, always in the same factory-fresh conditio...
- Tue Jan 23, 2018 3:23 pm
- Forum: General discussion
- Topic: Any way to turn the Pi Zero off except for an MCU + MOSFET?
- Replies: 62
- Views: 7486
Re: Any way to turn the Pi Zero off except for an MCU + MOSFET?
Is this a real problem, in the sense that it HAPPENED? Or is it just theoretical speculation? Because there are many other usage scenarios for SD cards when power goes off after a write. For example a camera shutting down from a low battery condition, the user removing it from the computer, and so ...
- Mon Jan 22, 2018 10:51 pm
- Forum: General discussion
- Topic: Any way to turn the Pi Zero off except for an MCU + MOSFET?
- Replies: 62
- Views: 7486
Re: Any way to turn the Pi Zero off except for an MCU + MOSFET?
Take a Pi B of some sort, issue the shutdown and then *watch* the lights to see what is happening and how long it takes. That's your delay time. Yeah - I've unmounted external (extra) SD based file systems on Pi boards, instinctively grabbed for the SD to pull it, and glimpsed that it still had tho...
- Mon Jan 22, 2018 10:10 pm
- Forum: General discussion
- Topic: Any way to turn the Pi Zero off except for an MCU + MOSFET?
- Replies: 62
- Views: 7486
Re: Any way to turn the Pi Zero off except for an MCU + MOSFET?
I've seen a few numbers on the current consumption of uSD cards - and it seems to range from 5 - 40 mA. That isn't much power. So, it seems that one could put a pretty low capacity power source on the SD itself, and just leave it run after a power cut. Maybe it could be a rechargable bat, supercap, ...
- Wed Jan 17, 2018 6:28 pm
- Forum: General discussion
- Topic: looking for a simple and lightweight music player for PI ZERO
- Replies: 15
- Views: 14225
Re: looking for a simple and lightweight music player for PI ZERO
May I suggest the free and open ogg123? It's very lightweight, and can be run easily against plain old ALSA with no extra layers, and best of all - it's built to use the free ogg vorbis format. apt-get install vorbis-tools Example run: nice -n4 ogg123 -d alsa -o dev:"hw:0" --audio-buffer 1...
- Mon Jan 08, 2018 2:58 pm
- Forum: Advanced users
- Topic: Tracking Raspberry Pi via GPS
- Replies: 19
- Views: 12327
Re: Tracking Raspberry Pi via GPS
Do you have a Pi 1,2, or 3? On the Pi3, you may need to make some config changes and/or compile gpsd from sources: https://www.raspberrypi.org/forums/viewtopic.php?t=138711 On the Pi2, I just install gpsd via apt-get. Works fine. Then you can use open street maps or one of several other programs to ...
- Mon Jan 08, 2018 2:52 pm
- Forum: General discussion
- Topic: Horrible experience trying to get into pi BUYER BEWARE
- Replies: 21
- Views: 3829
Re: Horrible experience trying to get into pi BUYER BEWARE
It's a poor attempt at trolling. When the competition can't even troll properly you have to wonder how good they are at electronic design and engineering. I can't help but thinking the same thing, albeit the post could still be genuine, and somebody (perhaps not very tech oriented) - who is simply ...
- Sat Jan 06, 2018 5:10 pm
- Forum: General discussion
- Topic: Chip architecture - is the Pi vulnerable?
- Replies: 54
- Views: 11210
Re: Chip architecture - is the Pi vulnerable?
One of my SBCs has both A15 and A7 cores. I'm confused by statements made about the A15 (the arm post implies they're not very worried about that core, even though it's on the list mentioned at the top of this thread), but I've turned those cores off just as a precaution. Seems to make negligible di...
- Wed Dec 27, 2017 3:21 pm
- Forum: General discussion
- Topic: What is StrongED
- Replies: 15
- Views: 1998
Re: What is StrongED
So you were just generally searching for an editor, and found StrongEd. Maybe a fortuitous fork in the fence row for you! If you're looking to kill off the boredom bug, RiscOS could keep you entertained for awhile, and it's available for the Pi!
- Wed Dec 27, 2017 3:11 pm
- Forum: General programming discussion
- Topic: Real time audio processing
- Replies: 1
- Views: 800
Re: Real time audio processing
Welcome to the Forums! This sounds like an interesting project. I've done nothing like it myself. So long as what you are "moving" does not create a safety hazard, it seems like a unique, challenging little project. Do you want a robot arm to move based on voice commands? You probably shou...
- Mon Dec 25, 2017 4:03 pm
- Forum: Beginners
- Topic: security camera
- Replies: 2
- Views: 631
Re: security camera
I would be inclined to use the official Pi camera (even tho I don't have one yet) - because USB/UVC cameras are going to be slow on the Pi due to the USB bottleneck. I've tried using a USB webcam camera on a Pi2, without very exellent results. Maybe a low-res model could work better, but I'd think t...
- Mon Dec 25, 2017 3:56 pm
- Forum: General discussion
- Topic: no-click micro SD
- Replies: 4
- Views: 826
Re: no-click micro SD
Really?
I would consider that a plus, cuz I have some of the auto-eject sockets that only eject now.
I would consider that a plus, cuz I have some of the auto-eject sockets that only eject now.
- Mon Dec 18, 2017 2:48 pm
- Forum: Off topic discussion
- Topic: Net neutrality discussion
- Replies: 12
- Views: 5582
Re: Net neutrality discussion
This is what it means when net neutrality is not required. Your ISP can determine what sites and services you can access, and at what speed. Companies like Amazon can pay to ensure that they alone offer a decent user experience, effectively destroying all their competition at a stroke. And in areas...
- Mon Dec 18, 2017 2:29 pm
- Forum: General discussion
- Topic: WiFi dongle with monitor mode?
- Replies: 12
- Views: 32768
Re: WiFi dongle with monitor mode?
Newer versions of the TP Link TL-WN722N (namely v2 and v2.1) do not support monitor mode out of the box. Right. I think that is because they switched from the Atheros chipset to something else (maybe RAlink or Realtek). But v1 has the Atheros AFAIK. The WN822N v1 had the AR9170 chipset, but it's th...
- Wed Nov 29, 2017 12:31 am
- Forum: Advanced users
- Topic: What happens to the Pi if I connect a 4.2V voltage source to its power input?
- Replies: 5
- Views: 1099
Re: What happens to the Pi if I connect a 4.2V voltage source to its power input?
Probably the lower voltage on the 5V rail is more likely to cause issues with HDMI, if that's being used, than with some or even most USB stuff. Just guessing.