https://www.photonicsguy.ca/ 2026-04-06T17:01:24+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/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/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/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 2017-11-12T18:38:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/archive/eeepc?rev=1510511896&do=diff Eee PC Customizations Some Eee PC customizations via shell script * Disable suspend to ram when AC adapter is plugged in and the lid is closed. * 30 minute timeout, after which the computer is suspended anyways * If the lid is closed and the AC adapter is unplugged, then suspend to ram is run. 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 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 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 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 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/electronics/battery?rev=1415904614&do=diff Tenergy Li-ion 18650 Pack Manufacturer site Capacity6600mAhVoltage3.7VDimensions69mm Length x 54mm Width x 18mm ThciknessWeight9.0 ozMax. charge current1AMax. discharge current3.5ACut off voltage/Over-Charge Protection: 4.35VOver-Discharge Protection:2.4V * High quality 3.7 V Li-Ion rechargeable battery pack 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/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 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 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 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 2014-11-13T18:50:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/projects/electronics/dgpsbeaconrx?rev=1415904614&do=diff DGPS-11 Beacon Receiver Si-tex DGPS-11 Beacon Receiver module mounted in a weatherproof housing. Wire Function Red+3A fused 10.8 to 31.2VDC OrangeRS-232C In WhiteRS-232C Out Black- Negative BlueTTL Out GreenData Ground BrownShield GroundHow can I tell if my WAAS GPS is giving me a corrected fix? Look for a "D" in your Latitude/Longitude readout. 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.