Photonicsguy.ca https://www.photonicsguy.ca/ 2026-04-07T00:22:19+00:00 Photonicsguy.ca 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) Tire Pressure Sensor Code 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) 405nm Laser Diode 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 2016-12-11T20:47:18+00:00 Anonymous (anonymous@undisclosed.example.com) C.H.I.P Computer 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) Ferrofluid 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) Camera Flash Control 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) Radio Communication https://www.photonicsguy.ca/projects/uav?rev=1415904614&do=diff UAV Radio Communication We require two things: * Certification of the Transmitter (This is first) * Assignment of freq. [Technical Requirements for the Operation of Mobile Stations in the Aeronautical Service] RSS-Gen - General Requirements and Information for the Certification of Radiocommunication Equipment RSS-119 - Land Mobile and Fixed Radio Transmitters and Receivers Operating in the Frequency Range 27.41- 960 MHz Requirements for the Certification of Radio Apparatus to Industry… text/html 2014-11-13T22:37:16+00:00 Anonymous (anonymous@undisclosed.example.com) 7-segment display module 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) DGPS-11 Beacon Receiver 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 2014-11-13T22:06:11+00:00 Anonymous (anonymous@undisclosed.example.com) PicGPS Display https://www.photonicsguy.ca/projects/electronics/picgps?rev=1415916371&do=diff PicGPS Display One of my first PCB boards text/html 2016-03-09T00:46:23+00:00 Anonymous (anonymous@undisclosed.example.com) Sump pump Monitor 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) Tire Pressure Sensor https://www.photonicsguy.ca/projects/electronics/tirepressuresensor?rev=1415904614&do=diff Tire Pressure Sensor The pressure is determined by the formula, <m>P=0.145* Parts Part# Description Source Cost MPX5700DP-ND0-101.5PSI Pressure sensorDigikey$16 2 Ft 1/4ID hoseHome Hardware$1.50 2 crimp style hose clampsHome Hardware$1.60