<?xml version="1.0" encoding="UTF-8"?>
<!-- generator="FeedCreator 1.8" -->
<?xml-stylesheet href="https://www.photonicsguy.ca/lib/exe/css.php?s=feed" type="text/css"?>
<rdf:RDF
    xmlns="http://purl.org/rss/1.0/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
    xmlns:dc="http://purl.org/dc/elements/1.1/">
    <channel rdf:about="https://www.photonicsguy.ca/feed.php">
        <title>Photonicsguy.ca</title>
        <description></description>
        <link>https://www.photonicsguy.ca/</link>
        <image rdf:resource="https://www.photonicsguy.ca/_media/wiki/dokuwiki.svg" />
       <dc:date>2026-04-06T22:36:14+00:00</dc:date>
        <items>
            <rdf:Seq>
                <rdf:li rdf:resource="https://www.photonicsguy.ca/projects/electronics/temperature?rev=1415904614&amp;do=diff"/>
                <rdf:li rdf:resource="https://www.photonicsguy.ca/projects/electronics/7segdisplay?rev=1415918236&amp;do=diff"/>
                <rdf:li rdf:resource="https://www.photonicsguy.ca/projects/electronics/dualpressuresensor?rev=1415916744&amp;do=diff"/>
                <rdf:li rdf:resource="https://www.photonicsguy.ca/projects/electronics/cardreader?rev=1415904614&amp;do=diff"/>
                <rdf:li rdf:resource="https://www.photonicsguy.ca/projects/electronics/lightsensor?rev=1415904614&amp;do=diff"/>
                <rdf:li rdf:resource="https://www.photonicsguy.ca/projects/electronics/optrexdisplay?rev=1415904614&amp;do=diff"/>
                <rdf:li rdf:resource="https://www.photonicsguy.ca/projects/electronics/relayboard?rev=1415904614&amp;do=diff"/>
                <rdf:li rdf:resource="https://www.photonicsguy.ca/projects/electronics/sdgpslogger?rev=1415904614&amp;do=diff"/>
                <rdf:li rdf:resource="https://www.photonicsguy.ca/projects/electronics/tirepressuresensor?rev=1415904614&amp;do=diff"/>
                <rdf:li rdf:resource="https://www.photonicsguy.ca/projects/electronics/usbserial?rev=1415904614&amp;do=diff"/>
            </rdf:Seq>
        </items>
    </channel>
    <image rdf:about="https://www.photonicsguy.ca/_media/wiki/dokuwiki.svg">
        <title>Photonicsguy.ca</title>
        <link>https://www.photonicsguy.ca/</link>
        <url>https://www.photonicsguy.ca/_media/wiki/dokuwiki.svg</url>
    </image>
    <item rdf:about="https://www.photonicsguy.ca/projects/electronics/temperature?rev=1415904614&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2014-11-13T18:50:14+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Temperature sensing devices</title>
        <link>https://www.photonicsguy.ca/projects/electronics/temperature?rev=1415904614&amp;do=diff</link>
        <description>Temperature sensing devices

ADT7410 Digital I2C Temperature Sensor

±0.5°C Accurate, 16-Bit Digital I2C Temperature Sensor
PinWire Colour1SCLYellow2SDABlue3A0Gnd4A1Gnd5INTn/c6CTn/c8VddRed7GndBlack
Need 0.1uF Cap between pins 7 &amp; 8



From Analog Devices, [ADT7410 Datasheet]

Thermopile sensor</description>
    </item>
    <item rdf:about="https://www.photonicsguy.ca/projects/electronics/7segdisplay?rev=1415918236&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2014-11-13T22:37:16+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>7-segment display module</title>
        <link>https://www.photonicsguy.ca/projects/electronics/7segdisplay?rev=1415918236&amp;do=diff</link>
        <description>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.</description>
    </item>
    <item rdf:about="https://www.photonicsguy.ca/projects/electronics/dualpressuresensor?rev=1415916744&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2014-11-13T22:12:24+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Barometric Pressure sensor</title>
        <link>https://www.photonicsguy.ca/projects/electronics/dualpressuresensor?rev=1415916744&amp;do=diff</link>
        <description>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</description>
    </item>
    <item rdf:about="https://www.photonicsguy.ca/projects/electronics/cardreader?rev=1415904614&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2014-11-13T18:50:14+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Magtek Card reader</title>
        <link>https://www.photonicsguy.ca/projects/electronics/cardreader?rev=1415904614&amp;do=diff</link>
        <description>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.</description>
    </item>
    <item rdf:about="https://www.photonicsguy.ca/projects/electronics/lightsensor?rev=1415904614&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2014-11-13T18:50:14+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Light Sensor</title>
        <link>https://www.photonicsguy.ca/projects/electronics/lightsensor?rev=1415904614&amp;do=diff</link>
        <description>Light Sensor

Datasheet</description>
    </item>
    <item rdf:about="https://www.photonicsguy.ca/projects/electronics/optrexdisplay?rev=1415904614&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2014-11-13T18:50:14+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Optrex IM50240 Display</title>
        <link>https://www.photonicsguy.ca/projects/electronics/optrexdisplay?rev=1415904614&amp;do=diff</link>
        <description>Optrex IM50240 Display

Hitachi HD44100H Chipset


PinFunctionNotes1DL12CL13CL24M500KHz @ 50% duty cycle5n/c6VCC7IC GND &amp; VEE8“Clear” Button9“Secure” Button10Ground</description>
    </item>
    <item rdf:about="https://www.photonicsguy.ca/projects/electronics/relayboard?rev=1415904614&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2014-11-13T18:50:14+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Relay board</title>
        <link>https://www.photonicsguy.ca/projects/electronics/relayboard?rev=1415904614&amp;do=diff</link>
        <description>Relay board



SPDT JW1FEN relays from an old UPS.

Matches closest to Digikey Part# 255-1114-ND

[JW Relay datasheet]

[Schematic]

[Board layout]

&lt;HTML&gt;&lt;BR CLEAR=“ALL”&gt;&lt;/HTML&gt;

OptoRelay Board


G4PB16 - G4 16-channel I/O Module Rack

	*  G4 ODC5 - G4 DC Output 5-60 VDC, 5 VDC Logic
	*  G4 OAC5 - G4 AC Output 12-140 VAC, 5 VDC Logic</description>
    </item>
    <item rdf:about="https://www.photonicsguy.ca/projects/electronics/sdgpslogger?rev=1415904614&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2014-11-13T18:50:14+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>SD GPS Track Logger</title>
        <link>https://www.photonicsguy.ca/projects/electronics/sdgpslogger?rev=1415904614&amp;do=diff</link>
        <description>SD GPS Track Logger

Why? This is why:Bicycling Trips

ICSP Connector

Need a PIC18 chip with more memory, I&#039;m using the PIC18F4685 with 96Kbytes of program memory.

Microchip Mass Storage Class Firmware

[Still not working]

Still not working. Might be software or hardware, I&#039;ll need to check it on a digital oscilloscope. 



Correct clock rate (less than 400KHz).</description>
    </item>
    <item rdf:about="https://www.photonicsguy.ca/projects/electronics/tirepressuresensor?rev=1415904614&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2014-11-13T18:50:14+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Tire Pressure Sensor</title>
        <link>https://www.photonicsguy.ca/projects/electronics/tirepressuresensor?rev=1415904614&amp;do=diff</link>
        <description>Tire Pressure Sensor

The pressure is determined by the formula, &lt;m&gt;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</description>
    </item>
    <item rdf:about="https://www.photonicsguy.ca/projects/electronics/usbserial?rev=1415904614&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2014-11-13T18:50:14+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>USB Serial Adapter</title>
        <link>https://www.photonicsguy.ca/projects/electronics/usbserial?rev=1415904614&amp;do=diff</link>
        <description>USB Serial Adapter

FTDI FT232RL

Digikey Part# 604-00043-ND



Prolific USB Serial Adapter

Drivers: &lt;http://www.prolific.com.tw/eng/downloads.asp?ID=31&gt;, [Local copy]

3.3V Logic
WireFunctionYellowDCDBrownGroundOrangeRX (To ComputerPurpleRTSRedTX (From computer)BlueCTSGreenRI??GreyDTR


Reference

	*  [PL-2303 Datasheet]
	*  [PL-2303 Product guide]</description>
    </item>
</rdf:RDF>
