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by topguy
Thu Jul 18, 2019 12:55 am
Forum: Networking and servers
Topic: GSM-gateway on raspberri pi
Replies: 2
Views: 88

Re: GSM-gateway on raspberri pi

Do you want to share the 3G/4g internet with Wifi or Ethernet ? ( or both ) Are you after fastest solution or cheapest solution ? First you need a 3G/4G module, I always prefer a USB model, and then a Pi with Wifi if you want to use that ? Are you experienced with Linux and networking ? Because it c...
by topguy
Wed Jul 17, 2019 8:15 pm
Forum: Raspbian
Topic: RPI 4 4gb Cant start games compiled for the raspi x11 error
Replies: 2
Views: 66

Re: Cant start games compiled for the raspi x11 error

Probably worth mentioning which Pi and which version of Raspbian you are using..
Also where you downloaded the games from..
by topguy
Wed Jul 17, 2019 6:44 pm
Forum: General discussion
Topic: Raspberry Pi 4 (Kodi+Serviio) as an alternative to HTPC
Replies: 2
Views: 162

Re: Raspberry Pi 4 (Kodi+Serviio) as an alternative to HTPC

- OS has normally minimal practical impact on performance. - Would still recommend using Raspbian. - Might have to wait a little bit until Kodi has iron all wrinkles with Raspbian Buster and new Pi4. - Unless you need to transcode videos for the other TV, I dont see much CPU usage happening either. ...
by topguy
Tue Jul 16, 2019 12:26 am
Forum: Troubleshooting
Topic: how to hear (from speaker) to fetch word from the live video
Replies: 1
Views: 50

Re: how to hear (from speaker) to fetch word from the live video

Kindly help Not sure how to be honest. We know nothing about the part 1 or part 2 programs? Do they exist, or only in theory ? What programming language are they written in ? Can they be modified ? Can they be merged in one program ? To be VERY generic, Linux allows piping the output from one progr...
by topguy
Tue Jul 16, 2019 12:16 am
Forum: General discussion
Topic: AES library
Replies: 1
Views: 101

Re: AES library

What does "some parts" mean ? The start, the middle, the end ? Some examples would probably be very enlightening..
by topguy
Tue Jul 16, 2019 12:12 am
Forum: Troubleshooting
Topic: Pi4 - force HDMI to specific framebuffer?
Replies: 2
Views: 116

Re: Pi4 - force HDMI to specific framebuffer?

Is there a way to force HDMI to use fb1 instead of fb0?
Probably easier to force the OLED driver to always choose fb1.
by topguy
Mon Jul 15, 2019 2:20 pm
Forum: Windows 10 for IoT
Topic: Raspberry PI 4 and accelerated graphics?
Replies: 6
Views: 419

Re: Raspberry PI 4 and accelerated graphics?

This question is too generic to be sure what you are really asking about. - The Pi4 has a GPU. - its a newer GPU core than the ones used in earlier Pi models. - Some graphics API support has been upgraded to newer versions and some has been removed. - Same for Video Codecs supported in GPU, we now h...
by topguy
Sun Jul 14, 2019 10:28 pm
Forum: Automation, sensing and robotics
Topic: Dbus doesn't initialize properly at boot in python script
Replies: 7
Views: 333

Re: Dbus doesn't initialize properly at boot in python script

Dbus is often started together with the Desktop/X-server. Is the desktop loaded when you run the script manually ? When i run it manually the GUI desktop is launch, and when i put the script in rc.local i make sure that the desktop is start, i put a delay of 60 seconds Two things.. - In rc.local th...
by topguy
Sun Jul 14, 2019 3:02 pm
Forum: Troubleshooting
Topic: Installing drivers for WiFi antenna
Replies: 2
Views: 70

Re: Installing drivers for WiFi antenna

To provide better answers we would need to know exact chip model in that wifi adapter. - Boot Pi without the adapter connected. - then plug in the adapter. - then run the following commands in a terminal and post the result here: lsusb dmesg | tail Also good for us to know which version of Raspbian ...
by topguy
Sun Jul 14, 2019 2:47 pm
Forum: Gaming
Topic: Minecraft on RPI4?
Replies: 2
Views: 250

Re: Minecraft on RPI4?

Server or Client ?
by topguy
Sun Jul 14, 2019 2:45 pm
Forum: Automation, sensing and robotics
Topic: Dbus doesn't initialize properly at boot in python script
Replies: 7
Views: 333

Re: Dbus doesn't initialize properly at boot in python script

Dbus is often started together with the Desktop/X-server. Is the desktop loaded when you run the script manually ?
by topguy
Sat Jul 13, 2019 2:27 pm
Forum: Beginners
Topic: Uninstall opencv whitout build folder
Replies: 3
Views: 79

Re: Uninstall opencv whitout build folder

Have you programmed with OpenCv while it has been installed ? if all the includes in the C code used "include <opencv/something.h>" I think its likely to assume there is a subdirectory under "/usr/local/include" where all of the files was installed. Potentially the same under "/usr/local/lib" either...
by topguy
Sat Jul 13, 2019 2:18 pm
Forum: Advanced users
Topic: Launch Chromium browser on second display?
Replies: 4
Views: 217

Re: Launch Chromium browser on second display?

Can you drag the chrome window (or any other window) with the mouse from one screen to the other ? Did you try this ? If its just an extended desktop I wound expect it to be "to the right of" or "below" the main deskop. Since the second screen is showing the desktop-background it should be under co...
by topguy
Sat Jul 13, 2019 1:38 pm
Forum: General discussion
Topic: Clone hdmi display to gpio lcd display
Replies: 2
Views: 113

Re: Clone hdmi display to gpio lcd display

There are tools called "rpi-fbcp" and "raspi2fb" which purpose is to copy image from one screen to another. -- https://www.raspberrypi.org/forums/viewtopic.php?f=67&t=104296&start=25 -- https://github.com/AndrewFromMelbourne/raspi2fb This assumes that the drivers for the display sets it up as a Linu...
by topguy
Sat Jul 13, 2019 1:31 pm
Forum: Beginners
Topic: I want to connect an external antenna to Raspberry Pi Zero.
Replies: 11
Views: 709

Re: What is it in Raspberry Zero ?

I want to connect an external antenna to Raspberry Pi Zero. An antenna for what ? Wifi, Bluetooth, GPS, GSM, Radio, TV ;-) I will be grateful for your honest answer :) Honestly.. I have no idea. Maybe google have... https://www.briandorey.com/post/raspberry-pi-zero-w-external-antenna-mod https://ww...
by topguy
Sat Jul 13, 2019 1:22 pm
Forum: Advanced users
Topic: Launch Chromium browser on second display?
Replies: 4
Views: 217

Re: Launch Chromium browser on second display?

Can you drag the chrome window (or any other window) with the mouse from one screen to the other ? Each X-server ( :0 , :1 etc. ) can have sub displays.. you address those with adding another number. See how these commands work. DISPLAY=:0.0 xeyes DISPLAY=:0.1 xeyes Edit: xeyes are just a small app ...
by topguy
Sat Jul 13, 2019 1:16 pm
Forum: General discussion
Topic: videodownloader where the put the mp4
Replies: 3
Views: 115

Re: videodownloader where the put the mp4

Does anyone knows where videodownloader put the files on the disk. Most of us probably dont know what "videodownloader" is. I'm guessing you are talking about a plugin to Chrome or Firefox, but I might be wrong. Running the command "find . -a -name *.mp4" in a terminal will search for files in your...
by topguy
Sat Jul 13, 2019 1:06 pm
Forum: Beginners
Topic: Uninstall opencv whitout build folder
Replies: 3
Views: 79

Re: Uninstall opencv whitout build folder

Now I should uninstall.. Why do you think that ? Most likely you will find the OpenCV stuff under "/usr/local" that is usually where "make install" will choose to install unless you have specified somewhere else during the "configure" stage. So "/usr/local/lib" "/usr/local/include/" and maybe /usr/...
by topguy
Sat Jul 13, 2019 12:56 pm
Forum: Troubleshooting
Topic: Unmet dependencies
Replies: 4
Views: 150

Re: Unmet dependencies

Problems regarding the installation and running the app are being reported as bugs and suggested fixes are posted. https://github.com/alexa/avs-device-sdk/issues/1405 https://github.com/alexa/avs-device-sdk/issues/1413 I don't have a Pi running Buster yet so I can't test any potential fixes. Alexa i...
by topguy
Fri Jul 12, 2019 12:11 pm
Forum: Troubleshooting
Topic: Unmet dependencies
Replies: 4
Views: 150

Re: Unmet dependencies

More likely, no one has had tested/adjusted the setup.sh script for Buster yet.. I look at this "pi.sh" and it seems to refer to libcurl4-openssl-dev now, so maybe run the "wget" again to update pi.sh. install_dependencies() { sudo apt-get update sudo apt-get -y install git gcc cmake build-essential...
by topguy
Fri Jul 12, 2019 11:11 am
Forum: General discussion
Topic: Raspberry pi question (Adafruit’s servo bonnet, can I combine it with other HAT's?)
Replies: 9
Views: 316

Re: Raspberry pi question

"Raspberry pi question" - what other kind of question would you ask on this site? A lot of very generic Linux or programming questions are being asked ( and answered ) all the time on this forum. While the question is usually asked in the context of a Pi, the answers are not Pi specific because the...
by topguy
Fri Jul 12, 2019 10:53 am
Forum: Troubleshooting
Topic: Java code to android app?
Replies: 1
Views: 50

Re: Java code to android app?

I don't think you can.. while you can program Android with the Java language that does not mean its compatible with the JRE ( Java run-time environemt ) that we use on PC's. Java libraries are quite different from Android libraries.
by topguy
Fri Jul 12, 2019 10:47 am
Forum: Beginners
Topic: Booting into a java app without a full OS
Replies: 1
Views: 80

Re: Booting into a java app without a full OS

If the Java APP has a GUI it needs to render that UI on something. Simplest way is to use X-windows, but you can start your app in "kiosk-mode" so that you dont need to load the "desktop". That saves on memory and resources. You can either use the full Raspbian OS and just disable automatic boot to ...
by topguy
Fri Jul 12, 2019 10:34 am
Forum: Troubleshooting
Topic: BT-Q1000x GPS gives NO FIX with cgps but works with gpsmon
Replies: 4
Views: 97

Re: BT-Q1000x GPS gives NO FIX with cgps but works with gpsmon

Code: Select all

$GPGSA,A,1,,,,,,,,,,,,,,,*1E
gpsd is not producing any location info because you dont have a "lock".

Code: Select all

$GPGSV,1,1,00*79
Also the GPS can not see ANY satellites.. so either connect the antenna or take the GPS out of your bunker.
by topguy
Thu Jul 11, 2019 5:01 pm
Forum: General discussion
Topic: Raspberry pi question (Adafruit’s servo bonnet, can I combine it with other HAT's?)
Replies: 9
Views: 316

Re: Raspberry pi question

So I want to use Adafruit’s servo bonnet, a few other bonnets and a couple of sensors with my raspberry pi zero. But what are you going to use them for ? is there a way to connect multiple raspberry pi’s together to run as one and use all of the GPIO pins? Not really, you can make a distributed app...

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