megasaturnv’s gists

megasaturnv / watchNewsbeuter.sh

Last active January 8, 2018 11:18

One-liner to check newsbeuter for updates every 30 seconds. If an unread item apears, it will alert the user with an audible bell and open newsbeuter. https://github.com/akrennmair/newsbeuter http://www.newsbeuter.org/

	#!/bin/sh
	#Megasaturnv 2017-06-08
	while true; do sleep 30; newsbeuter -x reload -x print-unread \| grep -q "^0 unread articles" && echo -n . \|\| (echo -e "\a"; newsbeuter) ; done

megasaturnv / digitalReadDebounce.ino

Last active September 1, 2022 10:32

Arduino simple digitalRead with software debounce

	//Megasaturnv 2017-07-05
	//Arduino simple digitalRead with software debounce

	//Digital read an pin with software debounce. Pin should be set as: pinMode(pin, INPUT_PULLUP) in setup().
	//Arduino ATMEGA328P (and some other ATMEL chips) have internal pull-up resistors. Pin is active when connected to GND
	//Projects where pins are active high (with pull down resistors) should modify lines 7 and 11 below, as indicated
	//This function will return true if input is active for at least 50ms and then released. The function will return false if input is not active
	bool digitalReadDebounce(int pin) {
	if (digitalRead(pin) == LOW) { // <- Change to '== HIGH' if pin is active high
	delay(50);

megasaturnv / parseRssFeed.sh

Last active October 16, 2023 07:29

Shell script / one-liner to parse and display an rss feed. May require tweaking for RSS feeds without newlines or where <title> and <description> are on separate lines to their text.

	#!/bin/sh
	#Megasaturnv 2017-07-28
	#Url of the RSS feed
	RSS_URL=""

	##Commented version:
	#Download the rss feed
	curl --silent "$RSS_URL" \| \

	#Only match lines with 'title>' or 'description>'

megasaturnv / daysUntilChristmas.sh

Last active January 8, 2018 11:15

Shell one-liner to echo / print the number of days until christmas (or any other arbitrary date)

	#!/bin/sh
	#Megasaturnv 2017-07-28
	echo $(($(date -d 25-Dec +%-j) - $(date +%-j))) days until christmas!

megasaturnv / tmuxAutoAttach.sh

Last active January 8, 2018 10:45

Automatically attach to a tmux session if one exists

	#!/bin/sh
	#Megasaturnv 2017-11-17
	(tmux ls \| grep -q "attached" && echo "[Info] You are already attached to a tmux session") \|\| tmux attach

megasaturnv / customTmux.sh

Last active January 8, 2018 10:44

Setup a custom tmux session

	#!/bin/sh
	#Megasaturnv 2017-11-17
	#useful examples: /usr/share/doc/tmux/examples

	SESSION="tmux_$USER"

	tmux -2 new-session -d -s $SESSION

	#0 Setup a window for general use
	tmux rename-window -t $SESSION:0 "General"

megasaturnv / checkRcloneVersion.sh

Last active January 8, 2018 11:41

Check Rclone version. Checks version from https://rclone.org/downloads/ and compares it to current version in checkRcloneVersion_current.txt, which needs to be updated after a new version of rclone is installed

	#!/bin/sh
	#Megasaturnv 2018-01-08

	# Uncomment to create checkRcloneVersion_current.txt file:
	# echo v1.38 > checkRcloneVersion_current.txt

	# Add following line to crontab (crontab -e) to check once a week (every Monday at 21:21)
	# 21 21 * * 1 ./checkRcloneVersion.sh

	LOCAL_VERSION="$(cat checkRcloneVersion_current.txt)"

megasaturnv / mjpeg_Snapshot.php

Last active December 13, 2019 10:33

PHP motion jpeg mjpeg snapshot single frame with or without http auth. No temporary file needed

	<?php
	//Megasaturnv 2018-01-12
	$camurl="http://192.168.1.100:8081/"; // Mjpeg URL
	//$camurl="http://username:[email protected]:8081/" // HTTP Auth mjpeg URL (optional)
	$boundary="--BoundaryString"; // $boundary = The boundary string between jpegs in an mjpeg stream
	//NOTE: $boundary changes between mjpeg stream providers. For example, https://github.com/Motion-Project/motion uses '--BoundaryString'. https://github.com/ZoneMinder/ZoneMinder uses '--ZoneMinderFrame'. To find out $boundary for your stream you will need to save 1 or more frames of the mjpeg and open it with a text editor. --<boundary string> should be visible on the first line
	$f = fopen($camurl, "r"); // Open mjpeg url as $f in readonly mode
	$r = ""; // Set $r to blank variable

	if($f) {

megasaturnv / mjpeg_Snapshot_img_tag.php

Last active January 17, 2018 16:24

PHP motion jpeg mjpeg snapshot single frame with or without http auth. Puts image in <img> tag with no temp file

	<?php
	//Megasaturnv 2018-01-16
	$camurl="http://192.168.1.100:8081/"; // Mjpeg URL
	//$camurl="http://username:[email protected]:8081/" // HTTP Auth mjpeg URL (optional)
	$boundary="--BoundaryString"; // $boundary = The boundary string between jpegs in an mjpeg stream
	//NOTE: $boundary changes between mjpeg stream providers. For example, https://github.com/Motion-Project/motion uses '--BoundaryString'. https://github.com/ZoneMinder/ZoneMinder uses '--ZoneMinderFrame'. To find out $boundary for your stream you will need to save 1 or more frames of the mjpeg and open it with a text editor. --<boundary string> should be visible on the first line
	$f = fopen($camurl, "r"); // Open mjpeg url as $f in readonly mode
	$r = ""; // Set $r to blank variable

	if($f) {

megasaturnv / webcam_snapshot.php

Last active January 16, 2018 14:42

Display snapshot from usb webcam camera /dev/video0 on a webpage. No temp file. Uses avconv command

	<?php
	//Megasaturnv 2018-01-16
	header("content-type: image/jpeg");
	// Change this resolution to match your camera \/
	echo passthru("avconv -f video4linux2 -i /dev/video0 -vframes 1 -s 1920x1080 pipe:.jpg 2>/dev/null");
	?>