AJ Esler ajesler

Apps

Android Bluetooth Debugging

In developer options, turn on "Enable Bluetooth HCI snoop log". Will create a log at "/sdcard/btsnoop_hci.log"
To download the file, "adb pull /sdcard/btsnoop_hci.log"
To delete the file, "adb shell rm /sdcard/btsnoop_hci.log"

Open the file in Wireshark to see bluetooth packets wireshark -r btsnoop_hci.log

Wa-Tor is a population dynamics simulation devised by Alexander Keewatin Dewdney

gem install curses

This project was conceived with the idea of getting some real world language practice.

gem install google-translate

	# Caculate the BSCCO checksum for a file
	# Usage: `$ ruby bscco.rb your_file.txt`
	# Based on the algorithm description in https://www.elexon.co.uk/wp-content/uploads/2013/11/bscp533_appx_a_v17.0.pdf
	def bscco(file)
	lines_except_last = File.read(file).lines[0..-2]

	lines_as_bytes = lines_except_last
	.map(&:chomp)
	.map(&:bytes)
	.map do \|line_bytes\|

	module CucumberStepDebugging
	def print_step_definitions
	step_definitions.each do \|sdl\|
	puts "#{sdl.regexp_source} in #{sdl.file_colon_line}"
	end
	end

	def step_definitions
	language_map = @__cucumber_runtime.instance_variable_get("@support_code").instance_variable_get("@language_map")
	step_definitions = language_map["rb"].instance_variable_get("@available_step_definition_hash").keys

	#define D3 3
	#define SECONDS_PER_HOUR = 3600

	const int photoresistorPin = D3;
	const int impressionsPerkWh = 1000;

	volatile long readingStart = 0;
	volatile long readingEnd = 0;
	volatile boolean readingAvailable = 0;

	require 'sqlite3'

	# https://github.com/mapbox/mbtiles-spec/blob/master/1.1/spec.md
	class Mbtiles
	attr_reader :tile_format, :db_file_name

	def initialize(db_file_name, format=:png)
	@db_file_name = db_file_name
	load_database(db_file_name)

	// IRLib from https://github.com/cyborg5/IRLib
	#include <IRLib.h>
	// RGBEffects from https://github.com/ajesler/Arduino-RGBEffects
	#include <RGBEffects.h>

	// if isPaused is true, update will stop being called until the lamp is unpaused.
	int isPaused = 0;
	// the time between effect updates.
	int effect_delay = 2100;

	require 'nokogiri' # swap to using REXML - may be slower but its built in to the ruby standard lib.
	require 'optparse'

	######################################
	# called like 'ruby junit-test-times.rb /home/user/project/target/surefire-reports'
	######################################

	class JUnitTestTimes

	@options = {}