Visit http://www.crazy-logic.co.uk for more interesting stuff.
The code,
http://www.crazy-logic.co.uk/projects/lighting/ws2801-leds-on-arduino-uno-shiftout
Multiple strings
http://www.crazy-logic.co.uk/projects/lighting/driving-multiple-led-strings-using-shiftout
other interesting ref's
http://arduino.cc/en/Reference/shiftOut
http://www.adafruit.com/datasheets/WS2801.pdf
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https://www.youtube.com/watch?v=PNQ8R1Ptvs4
Here i show how to expand a virtual machine's disk from the Host without any instruction needed with the guest machine - assuming linux guest with an ext filesystem.
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https://www.youtube.com/watch?v=HPUaYVLes-4
Simple fix for enabling better window snapping and tiling within Ubuntu 20.04/20.10/21.04 by installing a Gnome extension.
from a terminal:
sudo apt install chrome-gnome-shell gnome-shell-extension-prefs
then from a browser:
https://extensions.gnome.org/extension/1723/wintile-windows-10-window-tiling-for-gnome
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https://www.youtube.com/watch?v=U8vf2wBFcg0
A trick to multiply by 6, 7 or 8 on your fingers explained with algebraic PROOF.
This makes it look a bit less impressive once you know the proof.
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https://www.youtube.com/watch?v=7e5OVDOGhoQ
Here I revisit and show how to change your PI to have a static IP under Raspbian Buster - also works on other debian based systems/distro’s that use dhcpcd like the previous version Raspbian Stretch.
The video showing SSH is here;
and here are the commands
ifconfig
sudo nano /etc/dhcpcd.conf
sudo ip link set eth0 down
sudo ip link set eth0 up
ifconfig (maybe wait a few seconds)
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Amazon affiliate links
► Raspberry Pi kit - https://amzn.to/3ebdtQJ
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https://www.youtube.com/watch?v=UPP_upgSmjM
Here's how to quickly enable this;
You can also turn on/off from command line;
gsettings set org.gnome.desktop.interface locate-pointer true
gsettings set org.gnome.desktop.interface locate-pointer false
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https://www.youtube.com/watch?v=x3XBiWaYoag
Here I show how to get upto 42% more speed from the motor by increasing the voltage to 6.3v and also why 6.3v?!
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https://www.youtube.com/watch?v=vuiy-7N9aWE
In this video i show how to install Kdenlive 21.04 from the PPA (not snap) along with python to enable automatic speech recognition for subtitles, and how to upload them into YouTube.
sudo add-apt-repository ppa:kdenlive/kdenlive-stable
sudo apt-get update
sudo apt install kdenlive python3 python-is-python3 pip (you need these bits too)
sudo snap remove kdenlive (if you want to remove the snap - it’s possible to have both installed)
00:00 - intro
00:44 - installing python3, python is python3, pip
01:20 - installing Kdenlive from PPA
02:30 - into Kdenlive 21.04
02:42 - where is the subtitle feature?
02:50 - configuring the extra modules for the first time
04:35 - example showing how to generate subtitles from a video
05:24 - where is the subtitle file?
05:40 - how to get subtitles into YouTube
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https://www.youtube.com/watch?v=x2RDlnd22nc