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by gkaiseril
Mon Jul 15, 2019 1:00 pm
Forum: Troubleshooting
Topic: Problem connecting the 7" display to rp4
Replies: 4
Views: 140

Re: Problem connecting the 7" display to rp4

I have no problem running the Official 7" display on a Pi 4 with Buster. Red jumper wire 5vDC and Green jumper wire ground. One can even not use the wires by using 2 power warts, one for the Pi and one for the screen. I do rotate the lcd screen in the config.txt file. pi@raspberrypi:~ $ cat /boot/co...
by gkaiseril
Mon Jul 15, 2019 12:26 pm
Forum: Troubleshooting
Topic: CUPS denies access after user logon
Replies: 4
Views: 82

Re: CUPS denies access after user logon

Install system-config-printer program.

Have you looked into using the printer-driver-escpr package?
by gkaiseril
Mon Jul 15, 2019 10:54 am
Forum: Troubleshooting
Topic: CUPS denies access after user logon
Replies: 4
Views: 82

Re: CUPS denies access after user logon

Is your user part of the lpadmin group?
by gkaiseril
Sun Jul 14, 2019 5:55 pm
Forum: Troubleshooting
Topic: Stop Screen Dimming when Idle?
Replies: 2
Views: 49

Re: Stop Screen Dimming when Idle?

You want to turnoff screen blanking and the screensaver.

Setting the screen saver/screen blanking
by gkaiseril
Sun Jul 14, 2019 4:57 pm
Forum: Beginners
Topic: Moving an image file...
Replies: 6
Views: 157

Re: Moving an image file...

Use the following command to see the permissions, link count, owner name, size, modified date, file/directory name: ls -acgh /usr/share/rpd-wallpaper You should see that all the files are owned by "root" and non-root users only have "read" permission. You might want to study how linux uses users, gr...
by gkaiseril
Sun Jul 14, 2019 3:06 pm
Forum: General discussion
Topic: Where can I get a Pi Replacement?
Replies: 6
Views: 291

Re: Where can I get a Pi Replacement?

You can go to any authorised Raspberry Pi dealer and search for the Raspberry Pi 3 and you should see the Model A, Model B and Model B+. I would expect the various Pi 3s will continue to be built since not everyone will want to use a Pi 4 and the USB C power supply for their projects. Also there are...
by gkaiseril
Sat Jul 13, 2019 6:07 pm
Forum: Raspbian
Topic: RASPI-INFO: complete info from your RaspberryPi (EASY TO INSTALL)
Replies: 12
Views: 657

Re: RASPI-INFO: complete info from your RaspberryPi (EASY TO INSTALL)

The issue is we only have your word for the quality of the program. The other examples linked to both provide the full source code for their application. The utility provided by the Raspberry Pi documentation is a bash script and in plain text.
by gkaiseril
Sat Jul 13, 2019 5:48 pm
Forum: Raspbian
Topic: No audio after deleting Chromium browser
Replies: 6
Views: 180

Re: No audio after deleting Chromium browser

Tor is part of the official repositories but Opera is not.
by gkaiseril
Sat Jul 13, 2019 5:32 pm
Forum: Beginners
Topic: What wireless controller can I use?
Replies: 14
Views: 187

Re: What wireless controller can I use?

The Pi you use to login using either ssh or VNC is the console for the Pi on the robot. You performing a remote login to the Pi on the robot and appear to be the console to that robot.
by gkaiseril
Sat Jul 13, 2019 5:06 pm
Forum: Beginners
Topic: What wireless controller can I use?
Replies: 14
Views: 187

Re: What wireless controller can I use?

You pick your controller like your cell phone or a laptop and use either ssh or VNC to log into the robot's Pi then you control the robot via your controller.
by gkaiseril
Wed Jul 10, 2019 10:12 pm
Forum: Troubleshooting
Topic: Not being able to update properly
Replies: 8
Views: 471

Re: Not being able to update properly

The date command will set both date and time. It is best to supply both when issuing the command.

For more information see the man page for date.

One can also use the timedatectl command to set the date and time.
by gkaiseril
Wed Jul 10, 2019 2:48 am
Forum: Networking and servers
Topic: How to block a domain name?
Replies: 4
Views: 192

Re: How to block a domain name?

You can add a rule to the iptable to block the ip address or the range of ip addresses for the domain.

The Beginner’s Guide to iptables, the Linux Firewall
by gkaiseril
Tue Jul 09, 2019 1:54 pm
Forum: Troubleshooting
Topic: delete files without permission
Replies: 3
Views: 106

Re: delete files without permission

You should research the permissions in Unix/linux. You have the user level, the group level,and the world level. A user is a group. A user can be assigned to more than one group. Everyone is is the world level. The permissions that can be assigned are read, write, and execute. Understanding Linux Fi...
by gkaiseril
Mon Jul 08, 2019 9:35 pm
Forum: Troubleshooting
Topic: RPi 4 cannot connect to WiFi
Replies: 11
Views: 261

Re: RPi 4 cannot connect to WiFi

If all these networks are in close proximity you might want add a priority key to each network. This could prevent humping from one network to another.
by gkaiseril
Mon Jul 08, 2019 2:25 pm
Forum: Troubleshooting
Topic: RPi 4 cannot connect to WiFi
Replies: 11
Views: 261

Re: RPi 4 cannot connect to WiFi

What is in your /etc/wpa_supplicant/wpa_supplicant.conf file? At least the first 3 lines. and if you post any networks mask out the passwords and optionally the network name. Is it possible for you to connect to another network? How far away from the network access point are you? Part of my wpa-supp...
by gkaiseril
Mon Jul 08, 2019 1:42 pm
Forum: General discussion
Topic: Looking for a case for rb pi 3 + pir motion sensor
Replies: 19
Views: 307

Re: Looking for a case for rb pi 3 + pir motion sensor

Airplane mode is more about the cellular network and tall he phones on the plane searching madly for a cellular network to connect to. Both WiFi and blue tooth are available once in flight and have a far shorter range then the cellular service. I have used the WiFi on a recent flight to connect to t...
by gkaiseril
Mon Jul 08, 2019 1:29 pm
Forum: General discussion
Topic: Is starting with a 3B+ a bad idea now that the 4b is out?
Replies: 20
Views: 732

Re: Is starting with a 3B+ a bad idea now that the 4b is out?

The Pi 3Bs and stretch have been around for a long time and there is only maintenance being done on the contents of the repositories. With the 4B many programs have not been updated or even ready for buster. Also there is a lack of cases and cooling options. I would go with the any of the 3B models ...
by gkaiseril
Sun Jul 07, 2019 5:56 pm
Forum: Troubleshooting
Topic: RPi 4 . USB-C power supply to use..
Replies: 2
Views: 169

Re: RPi 4 . USB-C power supply to use..

I can run a Pi 4b 1 GB with 5.25 vDC 2500mA power supply and driving the 7" lcd monitor. But I expect under a load it would be under powered.
by gkaiseril
Sun Jul 07, 2019 5:36 pm
Forum: Raspbian
Topic: RASPI-INFO: complete info from your RaspberryPi (EASY TO INSTALL)
Replies: 12
Views: 657

Re: RASPI-INFO: complete info from your RaspberryPi

The issue is the lack of transparency of the code and is there any malicious code within the program. The two links provided have the source code available for all to see.
by gkaiseril
Sun Jul 07, 2019 2:31 pm
Forum: Raspbian
Topic: RASPI-INFO: complete info from your RaspberryPi (EASY TO INSTALL)
Replies: 12
Views: 657

Re: RASPI-INFO: complete info from your RaspberryPi

Much of this is available with either bash script or c++ source with the make instructions.
by gkaiseril
Fri Jul 05, 2019 1:58 pm
Forum: Troubleshooting
Topic: "Timetraveling" Raspi - Time Bug
Replies: 3
Views: 92

Re: "Timetraveling" Raspi - Time Bug

You can set the date and time using either the "date" or "timedatectl" commands in the terminal window. You can learn more by using the :man date" or "mat timedatectl" commands in the terminal window or searching gooble for post about setting the date and time. Where does the Raspberry Pi get the ti...
by gkaiseril
Thu Jul 04, 2019 2:07 pm
Forum: Troubleshooting
Topic: Lighting bolt icon problems [solved]
Replies: 10
Views: 211

Re: Lighting bolt icon problems

My mistake it is 5.25 volts DC.
by gkaiseril
Thu Jul 04, 2019 1:42 pm
Forum: Troubleshooting
Topic: Lighting bolt icon problems [solved]
Replies: 10
Views: 211

Re: Lighting bolt icon problems

This is a power supply not cell phone charger.

Output 5.5 volts DC 2400 mA

This is currently powering a Pi 3B +, Official 7" LCD display, and wireless keyboard and mouse with no problem, unless there is a brownout form the power company.

My other suppy is 5.5 volts DC 2.5 A (2500mA).
by gkaiseril
Wed Jul 03, 2019 1:07 pm
Forum: The MagPi
Topic: Getting individual pages from magazines - remix?
Replies: 21
Views: 2875

Re: Getting individual pages from magazines - remix?

Using a Raspberry Pi, I would install Off to to extract the pages an recombine them as needed from the freely downloadable PDF of the issue in question. One could also use A PC or Mac and a PDF of the magazine and any of the PDF editors/creators to edit it.

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