Derby Talk

Note for those using GrandPrix Race Manager version 11:

For proper operation please download the latest version of GPRM and the latest version of the Arduino sketch (http://www.miscjunk.org/mj/pg_pdt.html)

To wrap this thread up: Randy released a new version of GPRM (11.0.906.16) that resolves the issues discussed. The ready response message can be left in or removed (it should work either way) and the delays are no longer present. I released a new version of the Arduino sketch (1.10) that sends an ac...

Read delay is set to 0.25 seconds. The timer does not respond to the unmask all message (U) or check gate message (unless the gate is open) - is there some type of general acknowledge message the timer should be sending? I will email the log to you. Here is the config: http://www.miscjunk.org/forum/...

Thank you for the reply. I removed the "Ready Response" entry in the serial config and now the software can successfully communicate with the timer. One issue remains - it takes 10 seconds after hitting the "Ready Timer" button (on the race window) until "Ready" is disp...

Hello, A user of the Arduino timer ( http://www.derbytalk.com/viewtopic.php?t=6216 ) let me know that it failed to work with the latest version (11.x) of GPRM. Its been used successfully with version 10.x so I installed the latest 11.x version and verified that it no longer works. On the Hardware se...

Not the best quality:

The complete loop time is probably on the order of 100 or so microseconds (I should do some testing) and the instruction cycle time should be much, much smaller. Since I am only using the millis() function to get elapsed milliseconds these small (microsecond) deltas shouldn't be an issue. I was cur...

Scubersteve wrote:well that wasn't any fun

Sorry - I've never seen the show but something about the shape struck me as "batmobilish" so I just did a google image search on batmobile and there it (eventually) was...

Looks like a fun build!

Batmobile from the animated series?

Very cool, and nice web layout! Thanks! How accurate is the arduino and its code for millisecond resolution? For example (not knowing arduino code, but just glancing at the program), it seems like lane 1 could have some sort of advantage over lane 4 - in that it checks them in order. Is the instruc...

Hello all, Long timer lurker - thanks to everyone for the great information available on this board. Now that my son's council race is completed I thought I would clean-up and share the Arduino based track timer I built and a software utility I created for us to track his car's progress. Here's a we...