Go to advanced search

by gkaiseril
Sun Oct 13, 2019 3:28 pm
Forum: General discussion
Topic: removing old kernel modules
Replies: 2
Views: 157

Re: removing old kernel modules

Before removing them I would make a system backup and verify that it boots your system and then delete the kernels and see what happens.
by gkaiseril
Sat Oct 12, 2019 4:37 pm
Forum: Beginners
Topic: Haven't updated Raspberry Pi for 2 years
Replies: 5
Views: 199

Re: Haven't updated Raspberry Pi for 2 years

You might want to consider stretch if you want Mathmatica which has not updated its product for buster.
by gkaiseril
Sat Oct 12, 2019 3:20 pm
Forum: General discussion
Topic: Raspi 4 file server disappointing transfer speed, degradation and segfaults
Replies: 6
Views: 298

Re: Raspi 4 file server disappointing transfer speed, degradation and segfaults

You have to find the bottle neck in the long string of connections and eliminate that route. If you want to measure the transfer rate, you need to perform it over a network where you have control over each type of connection and know that the proper cable, wireless link, switch, router, etc. is as f...
by gkaiseril
Wed Oct 09, 2019 7:31 pm
Forum: Python
Topic: WiFi Scanner
Replies: 6
Views: 245

Re: WiFi Scanner

by gkaiseril
Wed Oct 09, 2019 7:23 pm
Forum: Beginners
Topic: Pre installed NOOBS for rasp pi 4 ?
Replies: 3
Views: 131

Re: Pre installed NOOBS for rasp pi 4 ?

Glad to hear that. Now you should run the update and upgrade commands.

sudo apt-get update
sudo apt-get upgrade

Always updates that need to be applied. I would then make a backup of the SD card.
by gkaiseril
Wed Oct 09, 2019 2:38 pm
Forum: Troubleshooting
Topic: Update freeze up errors
Replies: 4
Views: 92

Re: Update freeze up errors

Which version of raspbian are you running?

It looks like you are running jessie. The most current OS is buster. This means not only has jessie been archived but so has stretch.

I would not run the "dist-upgrade" option without making a backup the the SD card.
by gkaiseril
Wed Oct 09, 2019 2:27 pm
Forum: Troubleshooting
Topic: Rasbian is not starting up after update
Replies: 5
Views: 156

Re: Rasbian is not starting up after update

Which version of Raspbian were you using? The "dist-upgrade" may be upgrading the major OS version from stretch to buster. If you have tried to upgrade to buster without adjusting the boot partition, your upgrade will fail. Also there are a number of other steps that are necessary to attempt an OS u...
by gkaiseril
Mon Oct 07, 2019 3:52 pm
Forum: Beginners
Topic: Pre installed NOOBS for rasp pi 4 ?
Replies: 3
Views: 131

Re: Pre installed NOOBS for rasp pi 4 ?

Which version of NOOBs do you have?

Only the 2 most recent versions will work with the Pi4.

It might be easier to get the most recent version of Raspbian up and running.
by gkaiseril
Wed Oct 02, 2019 1:23 pm
Forum: General discussion
Topic: My PiTop’s SD card got rebooted, I have the data saved how do I get al my programs back?
Replies: 8
Views: 212

Re: My PiTop’s SD card got rebooted, I have the data saved how do I get al my programs back?

If you had started with a new SD card, then you could have copied you user files from the damaged SD card. In the future, backup your user directory on a removable device like a USB memory stick.
by gkaiseril
Tue Sep 24, 2019 12:17 am
Forum: General discussion
Topic: Best OS
Replies: 18
Views: 683

Re: Best OS

Raspbian has the best support of the many OSs that can be installed on a Pi. The Pi does not have Google Chrome but instead uses Google Chromium which support use of your Google ID and your Google settings and bookmarks.


What’s the Difference Between Chromium and Chrome?
by gkaiseril
Tue Sep 24, 2019 12:05 am
Forum: General discussion
Topic: Increase /boot Partiton?
Replies: 34
Views: 1016

Re: Increase /boot Partiton?

Why not use an Internet file sharing service like drop box, or google drive?
by gkaiseril
Sun Sep 22, 2019 8:44 pm
Forum: General discussion
Topic: config.txt corrupt
Replies: 3
Views: 82

Re: ran rpi-update config.txt corrupt

Remember this is a Linux system and the text files do not follow the MS rules. Not all Linux partitions are recognized by Windows do not follow Widows advice about reformatting the partition. You could use a USB card reader to read an other bootable SD card and copy the config.txt file from the boot...
by gkaiseril
Sun Sep 22, 2019 8:03 pm
Forum: Official Foundation Display
Topic: Choosing a case with correct screen orientation
Replies: 6
Views: 613

Re: Choosing a case with correct screen orientation

Edit the config.txt file to rotate the LCD screen 180 degrees. Documentation - Configuration - Config.txt - Video Scroll down to the section "LCD display/touchscreen options" for the lcd-rotate for values to rotate the image 0, 90, 180, or 270 degrees. Note this setting does not affect the HDMI or c...
by gkaiseril
Sat Sep 21, 2019 5:11 pm
Forum: Other projects
Topic: Healt System
Replies: 2
Views: 179

Re: Healt System

For the Arduino:

How to Use the MAX30100 as Arduino Heart Rate Sensor

For the Raspberry PI:

Raspberry Pi Heartbeat / Pulse measuring

The above were found with a google search.
by gkaiseril
Sun Sep 15, 2019 9:26 pm
Forum: Beginners
Topic: Updating time on my rpi 3b
Replies: 3
Views: 123

Re: Updating time on my rpi 3b

If you do not want to use the ntp service, it is possible to use the following command line script to set the date and time:

Code: Select all

sudo date -s "$(wget -qSO- --max-redirect=0 google.com 2>&1 | grep Date: | cut -d' ' -f5-8)Z"
by gkaiseril
Wed Sep 11, 2019 5:32 pm
Forum: Troubleshooting
Topic: Toolbar disappeared
Replies: 4
Views: 124

Re: Toolbar disappeared

Remove the lxPanel directories and then restart the Pi.

If the lxPanel directories are missing, the boot process will reestablish the default panel.

Raspberry Pi: Raspbian Missing Menu Bar
by gkaiseril
Wed Sep 11, 2019 3:51 pm
Forum: Beginners
Topic: Format a pre-rigged NOOBS card
Replies: 3
Views: 89

Re: Format a pre-rigged NOOBS card

One can also use a digital camera that uses the micro sd card to reformat the micro sd card.
by gkaiseril
Mon Sep 09, 2019 11:54 pm
Forum: Advanced users
Topic: Boolean logic in config.txt conditional filters
Replies: 3
Views: 164

Re: Boolean logic in config.txt conditional filters

The last section shows how to combine conditional filters. Filters of different types can be combined simply by listing them one after the other, for example: # settings here are applied to all hardware [EDID=VSC-TD2220] # settings here are applied only if monitor VSC-TD2220 is connected [pi2] # set...
by gkaiseril
Sun Sep 08, 2019 4:09 pm
Forum: Troubleshooting
Topic: FTP images to pi gets corrupted.
Replies: 1
Views: 70

Re: FTP images to pi gets corrupted.

Are you transferring using ascii or binary modes?

FTP Binary and ASCII Transfer Types And The Case of Corrupt Files

Another approach would be to use SSH and scp.
by gkaiseril
Sat Sep 07, 2019 8:33 pm
Forum: General discussion
Topic: How to make money with a Raspberry Pi?
Replies: 40
Views: 2023

Re: How to make money with a Raspberry Pi?

Tutor others in how to use RPi.
by gkaiseril
Thu Aug 29, 2019 8:55 pm
Forum: General discussion
Topic: cables and casing
Replies: 5
Views: 523

Re: cables and casing

There are times when one needs to start the Pi with minimum drivers so there is no wifi or bluetooth. Under these conditions a wired keyboard and mouse are necessary. The most common need is for resetting a user password when all passwords are not known.
by gkaiseril
Thu Aug 29, 2019 8:41 pm
Forum: Troubleshooting
Topic: date and time
Replies: 4
Views: 340

Re: date and time

Unlike a Windows PC or Mac, the Raspberry Pi does not have a real hardware clock. The Raspbian OS records the date and time when shut down and uses this value if there is no hardware clock or internet connection. If there is an enabled hardware clock, the OS will query the hardware clock and set the...
by gkaiseril
Sun Aug 25, 2019 2:28 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: GPIO UART voltages
Replies: 9
Views: 561

Re: GPIO UART voltages

From ADA Fruit the 5 vdc power connection is optional. It is important that only one side of the serial connection power the serial connection. Since you cannot control the power to the USB plug, assume it is providing the power and do not connect the 5 vdc connection. Only if the connection does no...
by gkaiseril
Sat Aug 17, 2019 5:14 pm
Forum: Beginners
Topic: Powering up/down a Pi
Replies: 13
Views: 1034

Re: Powering up/down a Pi

To power on or off mains power, one can use a power strip or single inline power switch. Just look for them in a local hardware store or online.
by gkaiseril
Sat Aug 17, 2019 4:20 pm
Forum: General discussion
Topic: Mounting The Pi PCB
Replies: 7
Views: 753

Re: Mounting The Pi PCB

After mounting Pi circuit board into the case, then one can insert any cords or SD cards as needed.

Go to advanced search