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Last post by FatSebastian « Fri Feb 24, 2012 1:12 pm
Posted in News and Announcements
Replies: 1
by gpraceman » Sat Jan 28, 2012 5:56 pm » in News and Announcements

1 Replies

37393 Views

Last post by FatSebastian
Fri Feb 24, 2012 1:12 pm
How to add a YouTube video to a post

Last post by gpraceman « Thu Apr 23, 2009 8:28 am
Posted in News and Announcements

by gpraceman » Thu Apr 23, 2009 8:28 am » in News and Announcements

0 Replies

41357 Views

Last post by gpraceman
Thu Apr 23, 2009 8:28 am
How to add a photo to a post

Last post by Speedster « Wed Nov 14, 2018 9:13 am
Posted in News and Announcements
Replies: 24
by gpraceman » Sat Jul 05, 2003 11:09 am » in News and Announcements
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24 Replies

110981 Views

Last post by Speedster
Wed Nov 14, 2018 9:13 am

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USB to Serial Adapters - macOS

Last post by gpraceman « Fri Mar 08, 2019 4:05 pm

by gpraceman » Fri Mar 08, 2019 4:05 pm

0 Replies

137 Views

Last post by gpraceman
Fri Mar 08, 2019 4:05 pm
USB to Serial Adapters - Windows

Last post by bstockton « Mon Jan 21, 2019 10:23 am
Replies: 28
by gpraceman » Mon Feb 12, 2007 8:50 pm
1

2
28 Replies

911 Views

Last post by bstockton
Mon Jan 21, 2019 10:23 am
Yet another Arduino based track timer...

Last post by Indy « Thu Sep 27, 2018 7:07 pm
Replies: 87
by Indy » Sat Jun 11, 2011 2:13 pm
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87 Replies

63562 Views

Last post by Indy
Thu Sep 27, 2018 7:07 pm
Electronic Interference Prevention

Last post by gpraceman « Thu Feb 16, 2012 6:35 pm
Replies: 13
by gpraceman » Mon Feb 12, 2007 8:58 pm

13 Replies

380 Views

Last post by gpraceman
Thu Feb 16, 2012 6:35 pm
www.BillvsDerbyTimers.weebly.com

Last post by gpraceman « Mon Jul 30, 2018 9:58 pm
Replies: 1
by billv » Mon Jul 30, 2018 3:52 pm

1 Replies

1202 Views

Last post by gpraceman
Mon Jul 30, 2018 9:58 pm
Need help with miscjunk.org timer!

Last post by Vitamin K « Sat Jun 23, 2018 7:48 pm
Replies: 3
by Artanis » Sat Jun 23, 2018 8:09 am

3 Replies

1298 Views

Last post by Vitamin K
Sat Jun 23, 2018 7:48 pm
Cheap (still unpolished) timer

Last post by Vitamin K « Fri Mar 16, 2018 2:01 pm
Replies: 1
by jpswensen » Thu Mar 15, 2018 9:27 am

1 Replies

1227 Views

Last post by Vitamin K
Fri Mar 16, 2018 2:01 pm
Affordable track timer design

Last post by Scoremaker « Tue Apr 04, 2017 10:21 am
Replies: 2
by Scoremaker » Sat Apr 01, 2017 5:57 pm

2 Replies

1916 Views

Last post by Scoremaker
Tue Apr 04, 2017 10:21 am
Lasers as better finish-line emitters?

Last post by MaxV « Sat Mar 18, 2017 2:52 pm
Replies: 3
by Vitamin K » Fri Mar 17, 2017 3:04 pm

3 Replies

2193 Views

Last post by MaxV
Sat Mar 18, 2017 2:52 pm
Arduino upgrade of Microwizard P2XL

Last post by ironband « Thu Mar 02, 2017 12:08 pm
Replies: 15
by ironband » Thu Feb 16, 2017 12:03 am
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2
15 Replies

4920 Views

Last post by ironband
Thu Mar 02, 2017 12:08 pm
Best Timer for a DIY Engineer

Last post by sldwaa « Wed Apr 06, 2016 5:14 am
Replies: 3
by sldwaa » Mon Mar 07, 2016 3:45 pm

3 Replies

2908 Views

Last post by sldwaa
Wed Apr 06, 2016 5:14 am
Wifi enabled timer?

Last post by Vitamin K « Mon Dec 01, 2014 10:57 pm
Replies: 4
by Vitamin K » Mon Dec 01, 2014 9:14 am

4 Replies

3077 Views

Last post by Vitamin K
Mon Dec 01, 2014 10:57 pm
A Different Approach to Multi-Point Lane Timings

Last post by Stan Pope « Sun Sep 28, 2014 8:44 pm
Replies: 5
by Stan Pope » Thu Sep 18, 2014 9:45 pm

5 Replies

3352 Views

Last post by Stan Pope
Sun Sep 28, 2014 8:44 pm
Finish Line LEDS

Last post by resullivan « Tue Mar 04, 2014 7:35 am
Replies: 6
by Pack200SC » Thu Feb 27, 2014 7:11 pm

6 Replies

3955 Views

Last post by resullivan
Tue Mar 04, 2014 7:35 am
State of the art in timers?

Last post by SlartyBartFast « Wed Feb 12, 2014 2:53 pm
Replies: 6
by SlartyBartFast » Tue Feb 04, 2014 4:09 pm

6 Replies

3416 Views

Last post by SlartyBartFast
Wed Feb 12, 2014 2:53 pm
Phototransistor sensitivity question

Last post by sirma « Fri Jun 21, 2013 2:35 pm
Replies: 12
by steve547 » Tue Feb 17, 2009 1:13 pm

12 Replies

7231 Views

Last post by sirma
Fri Jun 21, 2013 2:35 pm
Calculate car speed.

Last post by gpraceman « Fri Feb 08, 2013 2:21 pm
Replies: 29
by SlartyBartFast » Fri Nov 28, 2008 10:03 pm
1

2
29 Replies

15233 Views

Last post by gpraceman
Fri Feb 08, 2013 2:21 pm
10 Ways to Destroy an Arduino

Last post by gpraceman « Mon Dec 10, 2012 6:22 pm

by gpraceman » Mon Dec 10, 2012 6:22 pm

0 Replies

2311 Views

Last post by gpraceman
Mon Dec 10, 2012 6:22 pm
RaceMaster 4 DIY from Bosworth??? Anyone have success build

Last post by jgedmin81 « Sat Feb 18, 2012 6:57 pm
Replies: 10
by jgedmin81 » Wed Oct 12, 2011 3:52 pm

10 Replies

4000 Views

Last post by jgedmin81
Sat Feb 18, 2012 6:57 pm
Cheap/Inexpensive timing circuit?

Last post by FatSebastian « Fri Feb 17, 2012 9:54 pm
Replies: 9
by AJMD » Mon Feb 14, 2011 10:38 am

9 Replies

5797 Views

Last post by FatSebastian
Fri Feb 17, 2012 9:54 pm
Phototransistor location

Last post by msurebel « Sat Jan 21, 2012 11:27 pm

by msurebel » Sat Jan 21, 2012 11:27 pm

0 Replies

2444 Views

Last post by msurebel
Sat Jan 21, 2012 11:27 pm
Swan-tech?

Last post by Scubersteve « Thu Nov 10, 2011 4:14 pm
Replies: 11
by littleZracer » Sat Feb 19, 2011 2:51 pm

11 Replies

4373 Views

Last post by Scubersteve
Thu Nov 10, 2011 4:14 pm
Possible Finish Line Controller?

Last post by Duane « Mon Jan 31, 2011 11:43 am
Replies: 15
by SlartyBartFast » Wed Oct 03, 2007 9:40 am
1

2
15 Replies

9959 Views

Last post by Duane
Mon Jan 31, 2011 11:43 am
Wireless Timer to Computer Connection

Last post by SlartyBartFast « Thu Oct 14, 2010 2:14 pm

by SlartyBartFast » Thu Oct 14, 2010 2:14 pm

0 Replies

2762 Views

Last post by SlartyBartFast
Thu Oct 14, 2010 2:14 pm
Help need with a Derbytimer.com timer

Last post by PeteA « Fri Mar 12, 2010 8:15 am
Replies: 17
by PeteA » Thu Feb 11, 2010 1:11 pm
1

2
17 Replies

4996 Views

Last post by PeteA
Fri Mar 12, 2010 8:15 am
DerbyTimer.com

Last post by M Webb « Wed Jul 01, 2009 4:52 pm
Replies: 2
by M Webb » Wed Jul 01, 2009 2:27 am

2 Replies

1332 Views

Last post by M Webb
Wed Jul 01, 2009 4:52 pm
Simple finish line circuit help

Last post by MT Pockets « Fri Mar 27, 2009 10:24 am
Replies: 14
by MT Pockets » Wed Feb 04, 2009 8:28 am

14 Replies

6005 Views

Last post by MT Pockets
Fri Mar 27, 2009 10:24 am
How *should* timers respond to ties?

Last post by SlartyBartFast « Thu Feb 19, 2009 9:16 am
Replies: 5
by steve547 » Sat Feb 14, 2009 1:36 pm

5 Replies

2368 Views

Last post by SlartyBartFast
Thu Feb 19, 2009 9:16 am
Help... DerbyTimer GPRM interface any one using it ?

Last post by Andy_Potvin « Wed Feb 04, 2009 5:45 am
Replies: 13
by Andy_Potvin » Sat Jan 19, 2008 5:38 pm

13 Replies

6866 Views

Last post by Andy_Potvin
Wed Feb 04, 2009 5:45 am
Building a timer...

Last post by Pinewood Daddy « Thu Jan 29, 2009 8:11 am
Replies: 5
by SlartyBartFast » Thu Jan 22, 2009 11:42 pm

5 Replies

3659 Views

Last post by Pinewood Daddy
Thu Jan 29, 2009 8:11 am
Another crazy find... Lane indicators too small?

Last post by gpraceman « Tue Jan 27, 2009 9:59 am
Replies: 1
by SlartyBartFast » Tue Jan 27, 2009 9:01 am

1 Replies

1586 Views

Last post by gpraceman
Tue Jan 27, 2009 9:59 am
Serial Port Systems

Last post by quadad « Thu Nov 06, 2008 4:50 pm
Replies: 2
by Kurt Wylde » Thu Nov 06, 2008 4:01 pm

2 Replies

2198 Views

Last post by quadad
Thu Nov 06, 2008 4:50 pm
New Electronics Idea...

Last post by altontoth « Tue Jul 01, 2008 11:34 pm
Replies: 3
by SlartyBartFast » Tue Apr 15, 2008 10:35 am

3 Replies

3062 Views

Last post by altontoth
Tue Jul 01, 2008 11:34 pm
Attached Sensors

Last post by volzjr « Thu Feb 07, 2008 12:59 pm
Replies: 1
by dna1990 » Wed Feb 06, 2008 1:55 pm

1 Replies

2209 Views

Last post by volzjr
Thu Feb 07, 2008 12:59 pm
Homemade Timer - Debounce

Last post by knavekid « Mon Feb 04, 2008 3:52 pm
Replies: 2
by dna1990 » Sun Feb 03, 2008 12:09 pm

2 Replies

3433 Views

Last post by knavekid
Mon Feb 04, 2008 3:52 pm
Timer project

Last post by rangercmdr « Sun Feb 03, 2008 10:13 pm
Replies: 3
by reddriver » Sun Feb 03, 2008 5:58 pm

3 Replies

2765 Views

Last post by rangercmdr
Sun Feb 03, 2008 10:13 pm
New to electronic timers

Last post by Pinewood Daddy « Tue Jan 08, 2008 2:04 pm
Replies: 9
by fidoracing » Thu Dec 06, 2007 10:07 am

9 Replies

7021 Views

Last post by Pinewood Daddy
Tue Jan 08, 2008 2:04 pm
GPRM v7 No More Parallel Port

Last post by cleverpig « Thu Dec 13, 2007 6:30 pm
Replies: 2
by Kurt Wylde » Fri Sep 07, 2007 3:42 pm

2 Replies

3351 Views

Last post by cleverpig
Thu Dec 13, 2007 6:30 pm
Need to build a cheap finish line

Last post by SlartyBartFast « Wed Oct 03, 2007 7:48 am
Replies: 5
by CubScoutsDad » Mon Sep 24, 2007 12:57 pm

5 Replies

4027 Views

Last post by SlartyBartFast
Wed Oct 03, 2007 7:48 am
IR leds vers Halogen light bulbs

Last post by Pinewood Daddy « Wed Aug 22, 2007 10:23 am
Replies: 12
by Doug-in-the-woods » Fri Jun 22, 2007 10:31 pm

12 Replies

7453 Views

Last post by Pinewood Daddy
Wed Aug 22, 2007 10:23 am
Digital timer for $35 per lane

Last post by gpraceman « Mon Apr 09, 2007 7:39 am
Replies: 3
by Doug-in-the-woods » Mon Apr 09, 2007 6:53 am

3 Replies

3659 Views

Last post by gpraceman
Mon Apr 09, 2007 7:39 am
Parallel Port Connector Numbering

Last post by SuperDave « Tue Jan 23, 2007 7:03 pm
Replies: 2
by Kurt Wylde » Thu Jan 04, 2007 10:27 pm

2 Replies

2891 Views

Last post by SuperDave
Tue Jan 23, 2007 7:03 pm
How Do I test the Start Sensor Circuit

Last post by gpraceman « Sun Dec 17, 2006 8:45 pm
Replies: 7
by Kurt Wylde » Sat Dec 16, 2006 6:31 pm

7 Replies

4440 Views

Last post by gpraceman
Sun Dec 17, 2006 8:45 pm
Quad Comparator Pins

Last post by rangercmdr « Mon Nov 27, 2006 5:37 am
Replies: 7
by Kurt Wylde » Mon Nov 20, 2006 10:49 am

7 Replies

4497 Views

Last post by rangercmdr
Mon Nov 27, 2006 5:37 am
Which sensor schematic to build

Last post by John Shreffler « Thu May 11, 2006 7:53 pm
Replies: 10
by Wing Nut » Wed Apr 19, 2006 3:55 pm

10 Replies

7237 Views

Last post by John Shreffler
Thu May 11, 2006 7:53 pm
Pack 471 timer with limited sensor range

Last post by Don Kern « Tue Apr 11, 2006 8:22 pm
Replies: 2
by Don Kern » Wed Mar 29, 2006 9:14 pm

2 Replies

3402 Views

Last post by Don Kern
Tue Apr 11, 2006 8:22 pm
Simplified Least Expensive Timer(with images)

Last post by Cory « Mon Feb 13, 2006 2:30 pm
Replies: 1
by Pack11SanDiego » Mon Feb 13, 2006 2:04 pm

1 Replies

3485 Views

Last post by Cory
Mon Feb 13, 2006 2:30 pm
Timer Schematic

Last post by John Shreffler « Wed Feb 01, 2006 8:04 pm
Replies: 4
by daveppeters » Sat Nov 27, 2004 3:10 pm

4 Replies

5434 Views

Last post by John Shreffler
Wed Feb 01, 2006 8:04 pm
Parallell Port Sensor to USB? GPRM software

Last post by ericbecky « Thu Jan 26, 2006 11:08 am
Replies: 2
by ericbecky » Thu Jan 26, 2006 10:35 am

2 Replies

2890 Views

Last post by ericbecky
Thu Jan 26, 2006 11:08 am
Photo diodes vs Photo transistors

Last post by terryep « Sat Mar 26, 2005 4:22 pm
Replies: 3
by terryep » Tue Mar 22, 2005 8:28 pm

3 Replies

4164 Views

Last post by terryep
Sat Mar 26, 2005 4:22 pm

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