Etem Hyusnev etem

Thinkfan setup

Note: I configured this thinkfan setup for my old Thinkpad w520 on Ubuntu 17.10.

1. Install necessary programs

Install lm-sensors and thinkfan.

sudo apt-get install lm-sensors thinkfan

When using the JBL Flip 3 (or JBL Flip 2 or JBL Flip 4) as a permanent speaker for music or Text-to-speach announcements, connected through the AUX input and powered consantly it still goes into an automatic standby after some time of silence and it's a major problem in this use case. Depending on how long the silence was and how loud the new input audio is, it may take between 3 to 30 seconds in my experience before it resumes playing. For lack of a better place I'm posting here the information I have on solving this.

Obviously emitting the audio signal at maximum volume from the computer and lowering the volume at the speaker reduces the time for it to wake up. Downsides: less volume control for the computer (especially problematic if it's remotely controlled), still won't work if the audio played is relatively quiet or short (such as a home-automation announcement) so not a definitive solution.
Mixing unaudible waveforms into the audio output, either low frequency (< 20Hz) or high (> 15kHz). Downs

Install and configure WSL2 on windows 10

Install WSL2

Using the following link here install the WSL 2 on your windows 10.

Install X-Server

VcXsrv seems to the best choice for X-Server in Windows

#GNU Screen Cheat Sheet

##Basics

ctrl a c -> create new window
ctrl a A -> set window name
ctrl a w -> show all window
ctrl a 1|2|3|… -> switch to window n
ctrl a " -> choose window
ctrl a ctrl a -> switch between window
ctrl a d -> detach window

I recently came across the need to spawn multiple threads, each of which needs to write to the same file. Since the file will experience contention from multiple resources, we need to guarantee thread-safety.

NOTE: The following examples work with Python 3.x. To execute the following programs using Python 2.7, please replace threading.get_ident() with thread.get_ident(). As a result, you would need to import thread and not threading.

(The following example will take a very long time). It will create 200 threads, each of which will wait until a global lock is available for acquisition.

# threading_lock.py
import threading

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Categories:

• Routing Encapsulation
• GRE
• IPIP
• Choosing a Protocol
• Setting up
• Troubleshooting

	#!/usr/bin/env python2

	# a simple script for one of my articles - https://cryptolok.blogspot.com/2017/08/practical-wifi-hosts-triangulation-with.html

	from math import log10

	MHz=raw_input('MHz FREQUENCY (2417, 5200, ...) : ')
	MHz=int(MHz)

	dBm=raw_input('dBm TRANSMITTER POWER (23, 63, ...) : ')

	###############################################################################
	# The MIT License
	#
	# Copyright 2012-2014 Jakub Jirutka <jakub@jirutka.cz>.
	#
	# Permission is hereby granted, free of charge, to any person obtaining a copy
	# of this software and associated documentation files (the "Software"), to deal
	# in the Software without restriction, including without limitation the rights
	# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	# copies of the Software, and to permit persons to whom the Software is