Christoph Tack LieBtrau

Get the ID of your local device

$ hcitool dev
Devices:
hci0	00:1A:7D:DA:71:13

Scan for BLE devices

$ sudo hcitool -i hci0 lescan
LE Scan ...
54:60:09:4A:6D:D9 (unknown)

^C

Intro

OpenStreetMap can be used to create free maps for your Garmin. You could download those maps from services like OpenStreetMap.nl. Those maps contain a lot of unnecessary features (houses, woods) that make it hard to follow your route (see the screenshots). So if you want a map that makes it easy for you to keep on track, follow this guide.

Guide

Step 1. Download the map-data

You could use XAPI Query Builder to draw a bounding box and download your maps, but that frequently fails because servers are overloaded. It's better to download a recent map from Geofabrik.

	#!/usr/bin/env python3
	# Songka game solver
	# [Game Rules](https://www.wikihow.com/Play-Congkak)
	# [Songka_Plus on Android](https://play.google.com/store/apps/details?id=net.azurewebsites.sungka.twa&hl=en_US)

	# This is pretty much a solved game. The player that goes first will always win if he plays optimally.
	# There are several sequences to achieve this. The following is one of them:
	# Solution found: 41 turns, 93 seeds in the storehouse
	# 0 1 4 1 0 4
	# 1 1 2 3 2 0

	#!/usr/bin/env python3
	#
	# This program is a solver for the [SmartGames IQ-Stars](https://www.smartgames.eu/nl/1-speler-spellen/iq-stars) puzzle game.
	# 381 unique solutions can be found. My Thinkpad L580 takes 536s to find them.

	import math, sys
	from timeit import default_timer as timer

	def place_block(block, color, x, y):
	# Check if the block can be placed on the board at the given coordinates

	#!/usr/bin/env python3
	#
	# This program prints out three colums of exercises, each time with the result next to it.
	# Each column exists of 66 exercises.
	#
	# 1. Run the program
	# 2. Print out the created text file to a DINA4-paper
	# 3. Fold back the results of the first column
	# 4. Fill in the results for the first column.
	# 5. Unfold and check the results

	#!/bin/bash

	function current_session_time() {
	# Get the duration of the current logon session in seconds

	username="$1"
	info=$(last -Fn1 $username)
	# Get the current time and the session time in seconds
	current_time=$(date +%s)
	session_time=$(date -d "$(echo $info \| awk '{print $5, $6, $7, $8}')" +%s)

	#!/bin/bash
	# Cronjobs for each user can be edited with "crontab -e"

	battery_level=$(cat /sys/class/power_supply/BAT0/capacity)

	battery_level_threshold=35

	if (( $battery_level > $battery_level_threshold )); then
	echo $(date -u) ": Battery level ok:" $battery_level"%"
	exit 0