https://www.photonicsguy.ca/ 2026-04-06T22:34:24+00:00 https://www.photonicsguy.ca/ https://www.photonicsguy.ca/_media/wiki/dokuwiki.svg text/html 2016-03-09T02:48:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/electronics/mysensors?rev=1457491680&do=diff MySensor board After reading about the MySensors project, I decided to design a small circuit board to hold the Arduino and radio module. Status: * Nov 25th: I've assembled two working boards. Imgur photos * Nov 24th: I received the boards, Yay!! * Nov 7th, 2014: I'm waiting on the PCB's from text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/electronics/tirepressuresensor/code?rev=1415904614&do=diff Tire Pressure Sensor Code Return to Tire Pressure Sensor Project. ;############################################################################### ;# TITLE "Pressure Sense" ;# ;# Program : Pressure sensor using an MPX5700DP sensor and LCD display ;# Version :1.0 ;# Revision Date : ;# Author : Jeff Brown ;# ;# ;# ;############################################################################### ; radix hex #define RA0_… text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/dvr?rev=1415904614&do=diff MythTV DVR System Upgrade Hardware * Intel Celeron Dual Core E1200 CPU Allendale * Intel Desktop Board DG35EC * Product Guide * Integrated graphics with DVI out - Not used * Four Sata connectors * Gigabit Ethernet * 2x1024MB PC5400 RAM * Masscool Socket 775 CPU Cooling Fan * Cooler Master computer case * Nvidia 7300GT PCIexpress video card text/html 2024-02-12T12:09:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/wiki/syntax?rev=1707739749&do=diff Formatting Syntax DokuWiki supports some simple markup language, which tries to make the datafiles to be as readable as possible. This page contains all possible syntax you may use when editing the pages. Simply have a look at the source of this page by pressing text/html 2017-03-20T21:45:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/3d/tiko?rev=1490046311&do=diff Tiko I was fortunate enough to receive my Tiko for Christmas from batch #1. Starting on Christmas day I printed a bunch of owls, a benchy, and some other ornaments as well as the Tiko demo print. Video of my first print Things I've designed * Thingiverse * Tiko build volume * Top hat (for a failed owl print) text/html 2021-07-06T14:15:59+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/t530?rev=1625580959&do=diff Lenovo T530 Laptop WiFi upgrade I successfully installed an Intel Dual Band Wireless-AC 7260 wireless card by modifying the whitelist in the BIOS. I've compiled this step-by-step guide with references as I had trouble finding a similar resource online. Living in Toronto, the 2.4GHz WiFi band is over saturated and my best wireless throughput was roughly 16Mbps, now with 5GHz Wireless AC, I get an average of 700Mbps. I decided not to upgrade to the latest BIOS and to attempt the whitelist modifi… text/html 2014-11-17T21:33:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/arduino?rev=1416259994&do=diff Arduino Projects * LCD Display * Code Libraries * - SAA1064 7 Segment display text/html 2017-11-12T18:33:58+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/archive/nslu2?rev=1510511638&do=diff Embedded Linux computer with 1-wire net Linksys NSLU2 running Debian Linux off of flash memory, polls a 1-wire net every 5 minutes and records the data (temperature and humidity) to a remote SQL server. 1-Wire PIC18 Microcontroller PIC18F4523 reading an ADT7410 temperature sensor via I2C. text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/reference/flukemeter?rev=1415904614&do=diff Fluke 189/187/89-IV/87-IV Remote Interface Specification Archive of http://www.cfa.harvard.edu/~thunter/manuals/RemoteSpec89_18X.htm Retrieved October 2009 from Internet Archive, dated September 13th, 2006. Technical Note Fluke is providing this information to those few customers who would like this information. We give this information with the understanding that Fluke will not provide any additional support on this information. This means that our Product Support Service will not be able t… text/html 2021-07-06T13:33:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/eagle?rev=1625578394&do=diff CadSoft EAGLE Libraries <https://github.com/Photonicsguy/Eagle> eBay parts Footprints for components I've bought from eBay * eBay search for Arduino pro mini * eBay search for nrf24l01+ module Arduini mini pro NRF24L01+ module I've included a keepout block to prevent ground planes or traces from being routed under the antenna. I'm using this module for text/html 2016-03-09T00:46:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/sidebar?rev=1457484412&do=diff * Home * Contact * Education * Projects * Electronics * MySensor board * Sump pump Monitor * Barometric Pressure sensor * Tire Pressure Sensor * 7-segment display module * CadSoft EAGLE Libraries * Other * Transmission Holograms * Ferrofluid * Gel Candles * Arduino Projects * MySensor board * 7-segment display module * LCD Display * Vintage equipment * NeXT Computer * Olivetti P602 Delay Line Memory * Core Memory * Gad… text/html 2021-01-19T17:23:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/archive/cetus?rev=1611077023&do=diff Cetus Tracklog Cetus TrackLog (Linux) 1.35 Copyright (c) 2001-2004 Cetus http://www.CetusGPS.dk Usage: TrackLog [options] trackfile... <Enter> Options (* are default values): -fu user defined format * -dt TAB delimited * -fx GPs eXchange format (GPX) -ds semicolon delimited -fi Gliding Commission format (IGC) -dc comma delimited -fr NMEA RMC sentence format -dl linefeed delimited -pd decimal degrees * -sp period as decimal … text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/arduino/lcd?rev=1415904614&do=diff LCD Display MJKDZ I2C board from eBay. Notes: * eBay search for board * * I2C address is actually 0x20, not 0x27 * I'm using the New LiquidCrystal library * Need pull-up resistors on SDA and SCL lines (A4 & A5 pins) Test Code #include <Wire.h> #include <LiquidCrystal_I2C.h> #define lcdAddr 0x20 // set the address of the I2C device the LCD is connected to // create an lcd instance with correct constructor for how the lcd is wired to the I2C chip LiquidCrystal_I2C lcd(lcdAddr, 4, … text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/ulaser?rev=1415904614&do=diff U doped Laser Excited-State Absorption in Fluorescent Uranium, Erbium, and Copper-Tin Glasses PREPARATION AND PROPERTIES OF POTENTIAL GREEN LASER MATERIALS CONTAINING EXAVALENT URANIUM Fluorescence Spectra of Uranyl Ion in Various Environments Heavy-element chemistry at Los Alamos Factors affecting the threshold for laser action in CaF2 crystals doped with uranium and other host lattices - No access Uranium-doped calcium fluoride as a laser material - No access Q-Switching Spectral Bleac… text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/electronics/voip/dvg-1120?rev=1415904614&do=diff DVG-1120 9600 Baud, 8N1 Serial Port Pinout RJ9ColourFunctionPin1BlkGround2RedRX (Data to Computer)3Grn4Yel?ColourFunction-BlkRedTX (from computer)GrnRX (To Computer)YelGround Commands CommandFunctionspy 16 *Show Debug info for SIPnwdbg bridge off text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/htaguide?rev=1415904614&do=diff My quick guide to the Ontario HTA for Bicyclists and Drivers Ontario Highway Traffic Act “highway” includes a common and public highway, street, avenue, parkway, driveway, square, place, bridge, viaduct or trestle, any part of which is intended for or used by the general public for the passage of vehicles and includes the area between the lateral property lines thereof; text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/rideau?rev=1415904614&do=diff Rideau Canal Kingston to Frontenac Provincial park. I thought downstream paddling would be preferred, but the information I found says we should paddle from Kingston up due to the prevailing winds. Guide I think Frontenac would be best, at the very least, they have the most detailed information on their website and they have Kevlar canoes. We pickup the canoes in Frontenac and drive them down to Kingston. Similar to Saugeen, we drive a car back to Frontenac, or leave a car there if we can get… text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/arduino/ethernet?rev=1415904614&do=diff Ethernet ENC28J60 * ArduinoUIP Wiring PinVCC3.3VGNDGNDSCK13SO12SI11CS10 text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/arduino/udev?rev=1415904614&do=diff Making custom udev entries # udevadm info -a -p $(udevadm info -q path -n /dev/ttyUSB0)| grep ATTRS{serial} ATTRS{serial}=="A9KJB1T5" # create a file in /etc/udev/rules.d/ SUBSYSTEMS=="usb", ATTRS{serial}=="A9KJB1T5" , KERNEL=="ttyUSB?", SYMLINK+="sump", GROUP="dialout" text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/electronics/lightsensing?rev=1415904614&do=diff Light Sensing Photodiode LED 100 ohm resistor & an LED <http://www.arduino.cc/playground/Learning/LEDSensor> Phototransistor Intersil Light Sensor See Intersil ISL29001 text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/electronics/meter?rev=1415904614&do=diff TEM-65D <http://www.kuwano.co.jp/D-2.htm> FS=1mA 90Ω Shunt Internal resistance text/html 2017-06-04T17:02:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/electronics/vfd?rev=1496595754&do=diff VFD Display board HP Laserjet control demo [M66004 Datasheet] text/html 2023-12-20T15:30:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/esphome/watermeter?rev=1703086229&do=diff Water meter monitoring Hardware Using a ESP32 with QMC5883L compass module. TBD Accuracy Quite accurate, each interval (max to min to max) from the water meter appears to be 32.5ml, this was confirmed over the course of a few days and about 1.6 m³ of water (about 49 thousand intervals). text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/gps/algonquin?rev=1415904614&do=diff Achray, Algonquin camping trip View my Algonquin pictures. <html> <iframe src=“<http://photonicsguy.ca/gpsmaps/algonquin.htm>” width=“800” height=“800” marginwidth=“0” marginheight=“0” scrolling=“no” frameborder=“0”> <a href="http://photonicsguy.ca/gpsmaps/algonquin.htm">Click here for the map</a> text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/gps/barrie?rev=1415904614&do=diff Barrie Bicycling Trips <html> <iframe src=“<http://photonicsguy.ca/gpsmaps/Barrie.html>” width=“800” height=“800” marginwidth=“0” marginheight=“0” scrolling=“no” frameborder=“0”> <a href="http://photonicsguy.ca/gpsmaps/Barrie.html">Click here for the map</a> </iframe> </html> text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/gps/bicycling?rev=1415904614&do=diff Bicycling Trips * Barrie Bicycling Trips * Niagara Falls to Niagara on the Lake * Welland to Port Colborne <html> <iframe src=“<http://photonicsguy.ca/gpsmaps/bikeride.html>” width=“800” height=“800” marginwidth=“0” marginheight=“0” scrolling=“no” frameborder=“0”> <a href="http://photonicsguy.ca/gpsmaps/bikeride.html">Click here for the map</a> text/html 2021-07-06T13:59:08+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/gps/navyisland?rev=1625579948&do=diff Navy Island View my Navy Island pictures. <html> <a href=“/gpsmaps/navyisland.htm” targen=“_blank”>Open in fullscreen</a><BR /> <iframe src=“/gpsmaps/navyisland.htm” width=“800” height=“800” marginwidth=“0” marginheight=“0” scrolling=“no” text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/gps/nftonotl?rev=1415904614&do=diff Niagara Falls to Niagara on the Lake <html> <iframe src=“<http://photonicsguy.ca/gpsmaps/080622bikeride.htm>” width=“800” height=“800” marginwidth=“0” marginheight=“0” scrolling=“no” frameborder=“0”> <a href="http://photonicsguy.ca/gpsmaps/080622bikeride.htm">Click here for the map</a> text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/gps/oshawakayaking?rev=1415904614&do=diff Oshawa Kayaking <html> <iframe src=“<http://photonicsguy.ca/gpsmaps/oshawakayaking.html>” width=“800” height=“400” marginwidth=“0” marginheight=“0” scrolling=“no” frameborder=“0”> <a href="http://photonicsguy.ca/gpsmaps/oshawakayaking.html">Click here for the map</a> </iframe> </html> text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/gps/rideaucanal?rev=1415904614&do=diff Rideau Canal <html> <iframe src=“<http://photonicsguy.ca/gpsmaps/rideaucanal.htm>” width=“800” height=“800” marginwidth=“0” marginheight=“0” scrolling=“no” frameborder=“0”> <a href="http://photonicsguy.ca/gpsmaps/rideaucanal.htm">Click here for the map</a> </iframe> </html> text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/gps/rideaukayaking?rev=1415904614&do=diff Kayaking on the Rideau Canal View the geotagged pictures here on Picasa or you can download the thumbnails of the geotagged pictures to Google Earth here. Download this track to Google Earth <html> <iframe src=“<http://photonicsguy.ca/gpsmaps/rideaukayaking.htm>” width=“800” height=“800” marginwidth=“0” marginheight= text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/gps/saugeen?rev=1415904614&do=diff Saugeen Canoe Trip View my Saugeen pictures. <html> <iframe src=“<http://photonicsguy.ca/gpsmaps/saugeen.htm>” width=“800” height=“800” marginwidth=“0” marginheight=“0” scrolling=“no” frameborder=“0”> <a href="http://photonicsguy.ca/gpsmaps/saugeen.htm">Click here for the map</a> text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/gps/weltopoco?rev=1415904614&do=diff Welland to Port Colborne <html> <iframe src=“<http://photonicsguy.ca/gpsmaps/080705_welland_toportcolborne.html>” width=“800” height=“800” marginwidth=“0” marginheight=“0” scrolling=“no” frameborder=“0”> <a href="http://photonicsguy.ca/gpsmaps/080705_welland_toportcolborne.html">Click here for the map</a> text/html 2016-03-08T19:51:13+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/carouselpi?rev=1457466673&do=diff CarouselPi - A Kodak Carousel Slide Scanner I'm converting a Carousel slide projector into an automated slide scanner using a Raspberry Pi with a camera module. My main goal is the cataloguing of the slide trays and indexing with the use of barcode stickers on each carousel. I intend to have the images indexed so that I can easilt find a specific slide and scan it in with a professional scanner. text/html 2016-12-11T20:47:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/chip?rev=1481489238&do=diff C.H.I.P Computer Headless Setup * Connect CHIP to your Linux computer via USB * Run minicom -D /dev/ttyACM0 to connect to CHIP via a serial console * Login to chip, username: root, password: chip * Run nmtui, a console based wireless configuration tool text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/ferrofluid?rev=1415904614&do=diff Ferrofluid Followed the directions from here. View some pictures here, <html> <table style=“width:194px;”><tr><td align=“center” style=“height:194px;background:url(<http://picasaweb.google.com/f/img/transparent_album_background.gif>) no-repeat left”><a href=“<http://picasaweb.google.ca/photonicsguy/Ferrofluid#>”><img src=“<http://lh6.ggpht.com/_o8vuO8ku2Bo/R3CmoXghZGE/AAAAAAAADVI/zftZMUTQdNU/s160-c/Ferrofluid.jpg>” width=“160” height=“160 text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/glowcandles?rev=1415904614&do=diff Gel Candles Glow in the Dark Gel Candles This candle was a prototype for the similar looking candles I made for some of my friends as Christmas presents. I plan to make more someday soon, if you have any empty Absolut bottles you would like to give me, please notify me. A glass bottle with printed text (No labels, nothing that can burn) is needed. I also have some text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/vintage/next?rev=1415904614&do=diff NeXt Cube From <http://www.bangmoney.org/nextstep/root_password.html> Lost Root Password If you've forgotten the root password, you'll need to follow the following procedure to reset it so you can login as root. This is most helpful to people who've just purchased a used NeXT but don't know what the root password is. Reboot the system. Immdeiately after the "Testing System" message is replaced with "Loading from disk", hold down the right command key and press the tilde (~) on the numeric k… text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/gps/bicycling/june22?rev=1415904614&do=diff Niagara Falls to Niagara on the Lake <html> <iframe src=“<http://photonicsguy.ca/gps/080622bikeride.htm>” width=“800” height=“800” marginwidth=“0” marginheight=“0” scrolling=“no” frameborder=“0”> <a href="http://photonicsguy.ca/gps/080622bikeride.htm">Click here for the map</a> text/html 2014-11-13T22:37:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/electronics/7segdisplay?rev=1415918236&do=diff 7-segment display module [Working Display] Arduino library available on Github This was one of my first doublesided and surfacemount boards. I made this board using Eagle for layout and then I used BatchPCB to manufacture the board. The board operates correctly, however, if I were to revise it, I would use a larger SMT resistor than the 0402 size. The board will be controlled via I2C from a PIC microcontroller, initially for the pressure sensor and later for other projects. text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/electronics/cardreader?rev=1415904614&do=diff Magtek Card reader MAGTEK 21045002 MagStripe card reader. [Datasheet] Single Track, only reads Track 2 2.7 to 5.5VDC When no card is present all pins are high. When a card is present pin 5 goes low and remains that way for 140ms after the entire card has been read. text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/electronics/panelmeter?rev=1415904614&do=diff Panel Meter Interface Components * Panel Meter * [MCP41050] * [LM321] * [MAX5487 Digital Pot] * [12-bit DAC with SPI Interface] 1mA Full scale meter 94 Ohms coil resistance 5K Ohm resistor @ 5V = 1mA MCP4821 Pin No.SymbolFunction1VddSupply (2.7 to 5.5V)2CSChip Select3SCKSerial Clock Input4SDISerial Data Input text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/electronics/serialconverter?rev=1415904614&do=diff Serial Converter MAX233CPP * Uses no external caps Cable Pinout Pin Wire Colour Description 1 N/C 2 Black RD (Data to PC) 3 Brown TD (Data from PC) 4 N/C 5 Red Ground 6 Orange DSR 7 Yellow RTS 8 Green CTS 9 N/C S Shield text/html 2016-03-09T00:46:23+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/electronics/sumppump?rev=1457484383&do=diff Sump pump Monitor My parents have a cistern and a sump pump which would be useful to have some sort of water level monitoring. In the past, we would check the cistern level with a pressure gauge calibrated in inches of water. There was a rubber squeeze bulb which which would pressurize a plastic line which fed into the cistern, and the resulting level would be shown on the gauge.