https://www.photonicsguy.ca/ 2026-04-06T20:37:49+00:00 https://www.photonicsguy.ca/ https://www.photonicsguy.ca/_media/wiki/dokuwiki.svg text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/405nmlaser?rev=1415904614&do=diff 405nm Laser Diode Blue, Violet, almost Ultraviolet really. I made a driver board and just need to finish the heatsink and mount it in a case. I bought a translucent blue project box from Hammond that I'll be mounting the laser in. * 405nm (Blue) Laser 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 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 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 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 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 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 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. 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 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/taurus?rev=1415904614&do=diff Vehicle If I only had a single wrench, I hope it's 13mm. 10mm for thermostat bracket bolts. Remote Starter Does not engage A/C, rear defroster. Horn is not connected either (for programming). Rear Defroster relay [Relay] ContactNote85Coil - Switched by ECM, ground to activate text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/ebay/voltammeter?rev=1415904614&do=diff Volt/Ammeter from eBay Search string: DC 4.5-30V 0-10A LED Digital Volt meter Ammeter Specifications: * Supply voltage: 4.5 30V (wide range) * Test voltage: 0 ~ 100V * The minimum resolution below 10V: 0.01V * The minimum resolution above 10V: 0.1V text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/playground/google?rev=1415904614&do=diff <HTML> <script type=“text/javascript”> var gaJsHost = ; </script> <script type=“text/javascript”> var pageTracker = _gat._getTracker(“UA-4236527-4”); pageTracker._initData(); </script></body> </HTML> <HTML> <A href=“<http://www.google.ca/>” target=“_new text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/flash?rev=1415904614&do=diff Camera Flash Control CableShoeFunction?VoltageWireShieldGGnd 0RedF1Fire1.66Vdc3WhiteF2flash ready signal / data2 Hz signal 1-5V (0V when charging)2BlackF3TTL OK signal / clock1.06V (0V when charging)1 Measurements Flash Duration0.1ms delay27 to 28ms text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/logger?rev=1415904614&do=diff Data Logging Software Perl program is on it's way, writing it now. LiveGraph - Excellent graphing software written in Java, I use it as a frontend. Perl Script Install sudo cpan -i Device::SerialPort sudo cpan -i DBI sudo cpan -i LWP::Simple sudo cpan -i Time::HiRes text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/wet610n?rev=1415904614&do=diff WET610N telnet <ip_address> 1111 system telnetd telnet <ip_address> root password: wlan Serial boot log 38400,8N1 3.3V logic U-Boot 1.1.4 (Jun 19 2008 - 14:02:55) U-Boot code: 00000000 -> 0001C1F0 BSS: -> 00021498 CPU Clock: 200 MHz 1.8V Vdd Output: 1.793 … text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/reference/apcups?rev=1415904614&do=diff APC Smart-UPS 2200 RM with AP9606 management card Upgraded to latest firmware by uploading aos325.bin and sumx326.bin via FTP. <ftp://ftp.apc.com/apc/public/hardware/webcard/firmware/sumx/v326/> APCUPSD crashing, aborted (core dumped) I used the following patch to fix apcupsd: <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=655741> ===== --- a/src/drivers/snmplite/apc-mib.cpp +++ b/src/drivers/snmplite/apc-mib.cpp @@ -307,6 +307,8 @@ break; case CI_Overload: + if (data… 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/50a5vpowersupply?rev=1415904614&do=diff 50 Amp 5 Volt Power Supply Need a 208.76 ohm, 1% resistor to set the 5V output. Right now I'm using a 500 ohm potentiometer. 200 ohms would output 5.02V. text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/electronics/barcodescanner?rev=1415904614&do=diff Motorola IR-200E Barcode Scanner [AAA Battery UPC] text/html 2014-11-13T22:12:24+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/electronics/dualpressuresensor?rev=1415916744&do=diff Barometric Pressure sensor Dual pressure sensor board [PIC18F1320 Datasheet] RX on pin 3 TX on pin 2 Power ON 98.97 kPa, 742.3 Torr ; 0814,0521 98.97 kPa, 742.3 Torr ; 0814,0521 98.97 kPa, 742.3 Torr ; 0814,0521 Reference Barometer - MPXAZ4115A text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/electronics/gps?rev=1415904614&do=diff GPS Haicom HI-406BT 19200bps, 8N1 Serial Data PinWireDescription Blue3Vpk-pk serial data Orange3.3V Green3.3V Red0V Referenced to Ground Haicom website * [HI-406BT Manual] GPS Receiver Modules * Lowrance LGC-12S - [Owner's manual] * Earthmate Hyperformance GPS Receiver - Rockwell binary output only text/html 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/electronics/radiomodems?rev=1415904614&do=diff Radio Modems <http://lairdtech.stage.thomasnet.com/item/2-4-ghz-modules/ac-4424-transceivers/ac4424-200?&seo=110>