Go to advanced search

by topguy
Mon Jul 01, 2019 11:33 am
Forum: Gaming
Topic: Celeste on the Raspberry Pi
Replies: 11
Views: 594

Re: Celeste on the Raspberry Pi

Impressive.. hope more people will make Pi "friendly" versions of their games, not so "GPU memory hungry" versions ;-)
by topguy
Mon Jul 01, 2019 10:22 am
Forum: Troubleshooting
Topic: Running Deep Learning Based Plant Diseases Recognition
Replies: 3
Views: 88

Re: Running Deep Learning Based Plant Diseases Recognition

Well.. no one here wrote that software, and neither are we TensorFlow experts. I'm just saying that maybe some other forum is a better place to get the insight you need.
by topguy
Mon Jul 01, 2019 10:20 am
Forum: Troubleshooting
Topic: Using avconv to generate a video from images fails
Replies: 2
Views: 96

Re: Using avconv to generate a video from images fails

Doesn it mean my Raspberry has not enough RAM ? Its not unlikely, signal 15 is usually what you see when a program is killed externally. If you run "top" in another terminal you might see the memory usage. How large (in resolution) are the images, any reason you dont try to scale them on the new me...
by topguy
Mon Jul 01, 2019 10:11 am
Forum: Troubleshooting
Topic: Running Deep Learning Based Plant Diseases Recognition
Replies: 3
Views: 88

Re: Running Deep Learning Based Plant Diseases Recognition

Follow the instructions maybe.. the Pi is just another Linux computer.
by topguy
Mon Jul 01, 2019 9:04 am
Forum: Troubleshooting
Topic: Fatal, unable to resolve host when using git clone
Replies: 1
Views: 75

Re: Fatal, unable to resolve host when using git clone

Code: Select all

fatal: unable to reach *url* could not resolve host: Github
I'm pretty sure the full domain name is "github.com" and not only "github", has an extra "space" snuck in somewhere ?

SOOO much easier to help if you cut and paste the whole command and response.
by topguy
Mon Jul 01, 2019 8:35 am
Forum: General discussion
Topic: Google software encryption for pi 4 support
Replies: 3
Views: 269

Re: Google software encryption for pi 4 support

googles software based encryption for fill disk encryption
I think you need to be slightly more specific..
by topguy
Fri Jun 28, 2019 10:06 pm
Forum: Troubleshooting
Topic: How to play sounds from web sites on Raspberry Pi 4 ? (Solved)
Replies: 4
Views: 170

Re: How tp play sounds from web sites on Raspberry Pi 4 ?

Using "raspi-config" I think you can set the jack connector to be the preferred output. Maybe that fixes it, I dont know if there are changes in Raspbian Buster regarding this.
by topguy
Fri Jun 28, 2019 10:45 am
Forum: General discussion
Topic: GameController with an Arduino on Retropie
Replies: 2
Views: 140

Re: GameController with an Arduino on Retropie

You haven't even told us how the Arduino is connected to the Pi.
by topguy
Fri Jun 28, 2019 10:39 am
Forum: Troubleshooting
Topic: My GPIO .py script runs from the desktop but not from the command line.
Replies: 3
Views: 217

Re: My GPIO .py script runs from the desktop but not from the command line.

"Idle" is a GUI program it must have a desktop, that is what the "tkInter" exceptions is telling you.

But you dont run python scripts with "idle" you run them with "python".

Try this from the console.

Code: Select all

python /home/pi/gpio-music-box/omas_voice.py
by topguy
Thu Jun 27, 2019 4:01 pm
Forum: Networking and servers
Topic: How to stream RTSP with IP camera in Webserver flask ?
Replies: 4
Views: 308

Re: How to stream RTSP with IP camera in Webserver flask ?

<video id="video" src="http://IP_of_VLC_computer:VLC_Port" autoplay="autoplay" width="videowidth" height="videoheight"></video> The "IP of vlc computer" is the ip of the pc where the vlc program is running right ? Yes.. and that IP must be reachable also from the PC with the browser.. also remember...
by topguy
Thu Jun 27, 2019 3:56 pm
Forum: Troubleshooting
Topic: Updated to Buster, working on 3b+ not on 4.
Replies: 8
Views: 1056

Re: Updated to Buster, working on 3b+ not on 4.

You could in theory copy all the files in "/boot" from the working card to the non-working card. If you want to be really helpful you could also do "ls -laR /boot > bootpart.txt" on both cards and post the output it on some pastebin site and leave the links here. If there is a bug in one of the firm...
by topguy
Thu Jun 27, 2019 2:08 pm
Forum: Beginners
Topic: Webserver & NAS advice
Replies: 3
Views: 301

Re: Webserver & NAS advice

Would a 4B or 3B+ be suitable for this purpose?
Yes (most Pi models could do this), but if you go for a Pi4 you got a lot more headroom if the traffic to the website will increase or you want to use the NAS more.
by topguy
Thu Jun 27, 2019 2:00 pm
Forum: Troubleshooting
Topic: Updated to Buster, working on 3b+ not on 4.
Replies: 8
Views: 1056

Re: Updated to Buster, working on 3b+ not on 4.

Did you do a "sudo apt dist-upgrade" ?

"uname -a" will give you kernel version, probably wont work until that one is up-to-date at least.

Also "dpkg -l | grep raspberry" will give you a list of the most critical packages for hardware compatibility. ( i think )
by topguy
Thu Jun 27, 2019 1:44 pm
Forum: Networking and servers
Topic: How to stream RTSP with IP camera in Webserver flask ?
Replies: 4
Views: 308

Re: How to stream RTSP with IP camera in Webserver flask ?

I think the simple answer is "You can't". I used some time on google the last time you posted this question, and I did not either find any guides I thought would work. This is something I think could work: https://www.quora.com/How-do-I-embed-RTSP-into-HTML5 ( but I havent tried it ) But all falls b...
by topguy
Thu Jun 27, 2019 11:39 am
Forum: Gaming
Topic: Twitch-O-Matic - Streaming from PC
Replies: 1
Views: 466

Re: Twitch-O-Matic - Streaming from PC

1 - I should reduce the CPU load since the PC no longer need to encode the video before streaming to Twitch. There are more threads about "Auvidea" hardware on the forum, you should probably read those too. Can we get the specs of your brothers computer ? 2. Sound is probably going to be a bit trick...
by topguy
Wed Jun 26, 2019 3:11 pm
Forum: Beginners
Topic: DHCP and static IP on ethernet adapter together
Replies: 2
Views: 276

Re: DHCP and static IP on ethernet adapter together

<r><QUOTE><s>[quote]</s>Tell me how to do this in raspberry?<e>[/quote]</e></QUOTE> Tell us first which OS or version of Raspbian you have installed, the solution might depend on that.<br/> <br/> I dont use the Pi desktop much, but if they are using a standard networking management app(let) it shoul...
by topguy
Wed Jun 26, 2019 2:01 pm
Forum: Raspbian
Topic: No Docker for Raspbian Buster
Replies: 24
Views: 7979

Re: No Docker for Raspbian Buster

There is a "docker.io" package in buster: https://packages.debian.org/buster/docker.io
by topguy
Wed Jun 26, 2019 12:53 pm
Forum: HATs and other add-ons
Topic: Accelerating network software, how?
Replies: 3
Views: 419

Re: Accelerating network software, how?

Running it on a Pi4 instead of a Pi3 is a potential hardware level fix.

You will get better CPU and better Ethernet performance, but if your real bottleneck is SD-card write speed because you have bad design of file/database handling then the real effect will not be great.
by topguy
Wed Jun 26, 2019 11:00 am
Forum: HATs and other add-ons
Topic: Accelerating network software, how?
Replies: 3
Views: 419

Re: Accelerating network software, how?

If you havent identified the bottleneck then its going to be hard to do any effective optimization. I like the command line tool "dstat", it prints out every second an overview of network, cpu and disk-usage. If you can figure out what resource is the critical one for your application then its much ...
by topguy
Tue Jun 25, 2019 3:48 pm
Forum: C/C++
Topic: change data type using C/C++
Replies: 3
Views: 539

Re: change data type using C/C++

I find it unlikely that a system like ZigBee would use such an inefficient method for sending data. Sending "7e" instead of one byte of value 0x7e just wastes half the bandwidth,
by topguy
Tue Jun 25, 2019 2:33 pm
Forum: C/C++
Topic: Issue communicating with /dev/ttyUSB1
Replies: 2
Views: 288

Re: Issue communicating with /dev/ttyUSB1

I think the first attempt will just exit the while loop at once because you don't wait for the modem to reply.
Wrap the while in a 20 iterations "for"-loop that sleep for 100ms every loop.
by topguy
Tue Jun 25, 2019 2:22 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: How to make a screen work for an open source large screen RP4 powered laptop
Replies: 2
Views: 444

Re: How to make a screen work for an open source large screen RP4 powered laptop

Monitors use AC power (I'm not sure if they change to DC inside the monitor and at what point) I would say "no", they all use DC power, the only difference is if the AC/DC converter is inside the monitor or not, that is usually just a design/quality decision. 2. That there is a control board in the...
by topguy
Tue Jun 25, 2019 2:10 pm
Forum: General discussion
Topic: Users via ssh can't scan with Raspbian Buster anymore
Replies: 9
Views: 930

Re: Users via ssh can't scan with Raspbian Buster anymore

I'm curious to what result ls -lR /dev/bus/usb/ gives.. Also the contents of : "/etc/scanbd/scanbd.conf" if you have it. But here is what I think is going on.... There is a subsystem of X-Windows called "dbus" which send messages between a lot of different services etc. One part of dbus is the HAL (...
by topguy
Tue Jun 25, 2019 12:06 pm
Forum: General discussion
Topic: Users via ssh can't scan with Raspbian Buster anymore
Replies: 9
Views: 930

Re: Users via ssh can't scan with Raspbian Buster anymore

Are the "local" users and the "ssh" users the same users or two completely separated set of users.?? And with "local" users you mean users that log into the desktop on a monitor physically connected to the Pi ? You have shown what the local users see, what results does ssh users get ? No specific er...
by topguy
Tue Jun 25, 2019 8:48 am
Forum: General discussion
Topic: Users via ssh can't scan with Raspbian Buster anymore
Replies: 9
Views: 930

Re: Users via ssh can't scan with Raspbian Buster anymore

Do you know which device the scanner identifies as ? Or if its visible in the /dev/ filesystem at all ? I believe this thread might help you, but as I have not any copy of Buster or a scanner there are limits to what I can check. https://unix.stackexchange.com/questions/44308/understanding-udev-rule...

Go to advanced search