Erik Bročko ericek111

APRS with airspyhf_rx, csdr, and direwolf

1200bps 144.660MHz

# Choose 11025Hz for the intermediate IF/audio frequency
airspyhf_rx -f 144.66 -a 768000 -r stdout | \
  csdr fir_decimate_cc 69.65986394557823129252 0.005 HAMMING | \
  csdr fmdemod_quadri_cf | csdr limit_ff 0.5 | csdr deemphasis_nfm_ff 11025 | \
  csdr fastagc_ff | csdr limit_ff 0.5 | csdr convert_f_s16 | \

/usr/local/bin/direwolf -c ~/bin/sdr-1200bps.conf -t 0 -T "%FT%TZ" -r 11025 -D 1 -B 1200 -

Effective Modern CMake

Getting Started

For a brief user-level introduction to CMake, watch C++ Weekly, Episode 78, Intro to CMake by Jason Turner. LLVM’s CMake Primer provides a good high-level introduction to the CMake syntax. Go read it now.

After that, watch Mathieu Ropert’s CppCon 2017 talk Using Modern CMake Patterns to Enforce a Good Modular Design (slides). It provides a thorough explanation of what modern CMake is and why it is so much better than “old school” CMake. The modular design ideas in this talk are based on the book [Large-Scale C++ Software Design](https://www.amazon.de/Large-Scale-Soft

Adding MySQL FULLTEXT Support to WordPress

FULLTEXT support to WordPress is simple if you have access to phpMyAdmin. If not, it can still be done but is a little trickier if you’re not used to command-line. We’ll demonstrate how to modify your WordPress database using phpMyAdmin.

How To Modify Database

Start out by having a set of keywords to test against. You’ll need ‘before’ and ‘after’ test results. Also, I can’t stress this enough but back up your database before proceeding!
Next, log into your phpMyAdmin page and navigate to your {prefix}_posts table.
Click on the “Structure” tab.

Reddit post (Archived)

Table of Content

What to expect?
- Some TLDR about the idea behind
Prerequisites
- Hardware
- System & Software
Update: Attention for MUXless laptop

Streaming your Linux desktop to Youtube and Twitch via Nvidia's NVENC and VAAPI:

Considerations to take when live streaming:

The following best practice observations apply when using a hardware-based encoder for live streaming to any platform:

Set the buffer size (-bufsize:v) equal to the target bitrate (-b:v). You want to ensure that you're encoding in CBR mode.
Set up the encoders as shown:

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

STM32duino GPIO Registers and programming

Sources:

http://embedded-lab.com/blog/stm32-gpio-ports-insights/
http://hertaville.com/stm32f0-gpio-tutorial-part-1.html

The libmaple libraries, on which STM32duino is based, provides access to registers by the syntax:

GPIOA-&gt;regs-&gt;REG

	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
	;;;
	;;; Copyright (C), zznop, [email protected]
	;;;
	;;; This software may be modified and distributed under the terms
	;;; of the MIT license. See the LICENSE file for details.
	;;;
	;;; DESCRIPTION
	;;;
	;;; This PoC shellcode is meant to be compiled as a blob and prepended to a ELF

	.ATmega328
	; Ida avr.cfg (c) THANATOS

	SUBARCH=5

	RAM=2048
	ROM=32768
	EEPROM=1024

	; MEMORY MAP

	#!/usr/bin/bash

	function pacman-last-used {
	trap 'updateTermWidth' WINCH

	storage_dir=${HOME}/.config/pacman-last
	mkdir -p "$storage_dir"

	unsorted=$storage_dir/"packages.1.exec_bins.log"
	sorted=$storage_dir/"packages.2.exec_bins.sorted"