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Wednesday, May 28, 2025

Micropython esp32 urequests and TFT

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I installed micropython on my esp32 for easier coding - no more waiting for the arduino code to recompile, and easy testing of new code. All...
Friday, October 11, 2024

Wifi settings

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 Beacon interval - set to maximum to save bandwith and increase battery life. If you have more Acces Points in the location and need to swit...
Friday, October 27, 2023

LibreOffice starts very slow on linux

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 Uninstall the package xdg-desktop-portal sudo apt autoremove xdg-desktop-portal then it will start in second. Ubuntu / Debian - mirage - im...
Saturday, July 22, 2023

Linux kernel drivers, initrd vs initramfs

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The bootloader will load the kernel. This could be GRUB or BCD for windows   Initrd - meant initial ram disk. Initramfs - initial ram file ...
Thursday, June 1, 2023

Install grub boot loader + Fix Windows instalation

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GRUB (GRand Unified Bootloader) BIOS will read the first sector of a storage device for a boot partition table. MBR( master boot record) - 4...

Connect to Wifi internet linux

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echo 127.0.0.1    laptop > /etc/hosts echo pcname > /etc/hostname Connect to WIFI sudo systemctl enable iwd Enable dhcp client /etc/iw...

Manual install debian or arch linux from scratch

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Boot  Arch linux image from USB. Use rufus to burn it windows, balenaetcher or dd in linux. dd if=~/Download/arch.iso of=/dev/sdb bs=1M stat...
Saturday, April 1, 2023

Storage partitions under linux - swap - ramdisk

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Partitions gparted, cfdisk, lsblk, df -h mkfs.ext4 /dev/sda2 , mkfs.ntfs etc --- format the partition   sudo fdisk -l      --- view disks ls...
Tuesday, March 28, 2023

Android on linux

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 ADB - Android Debug Bridge - sudo apt install adb To enable go to Settings - About phone - scroll to bottom - tap many times - Build number...
Monday, January 30, 2023

Convert scanned document images to pdf

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Rename the images with numbers 1, 2 ,3 etc 12.jpeg - the image view/print app from windows doesnt use the same order as you see it in explor...
Monday, December 12, 2022

Linux autologin + Sudo with yubikey

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Authentification is done by PAM - Pluggable Authentication Modules Passwords are stored in /etc/shadow passwordless login with yubikey on li...
Tuesday, November 8, 2022

Mouse latency response time in linux

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 lsusb Find your mouse.  Bus 001 Device 003: ID 1a7c:0191 Evoluent VerticalMouse 4 sudo usbhid-dump -s 1:3 -f -e stream From the manual we g...
Tuesday, November 1, 2022

Nofap - block porn

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 Change the dns on your router in the DHCP section, with the dns from cisco OpenDNS  FamilyShield https://www.opendns.com/setupguide/#family...
Sunday, October 23, 2022

Hacker movies

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 Takedown 2000 - computer hacker Kevin Mitnick Antitrust 2001 The net 1995 Hackers 1995

Disable notification pop-ups in chrome

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  Click on    for menu list and choose the   Settings   option. Switch to the  Privacy and Security  section and click on the  Site Settings...