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SMonte Carlo's not counting laps.

Dr_C

271 posts

Very puzzling that the gap between the guide blade assembly and the DPR hatch is so large... I can see that the front axle would coincide with the hatch if it was further forward... but a betterdesign solution for compatibiity with the ARC PRO would, in my opinion, have been a split axle approach as used in the BMC minis.

 

To confirm this diagnosis, you could run the car by hand across the start line (and remember you need to cross the exit sensor too).

 

Then, temporarily extend the length of the blade using black pvc tape... and try again. The test here is bringing the rear edge of the blade closer to the IR LED... thereby improving the dual triggering of the lap sensor configuration.

 

C

Andy P.

1536 posts


Community Moderator

Just a minute gents... Where the IR LED is is immaterial in analog mode.

Could we please get an answer if it is an issue in analog as well as digital ?

Thanks

Dr_C

271 posts

yes... good point...

 

1/ Is the lap counting problem digital only or both digital and analog.

2/ elsewhere (sf) I saw reference to pacer cars... is the counting problem occuring for driver controlled cars (as opposed to pacer cars)?

 

Many thanks and looking forward to your response,

 

C

Ok.

1: I just gave the cars a try in Analog mode and the cars count laps correctly.

2: The counting problem is with both Pace cars and human controlled cars in Digital mode. 

Andy P.

1536 posts


Community Moderator

OK...

Final question(s): Have you tried the chips in other cars to rule out there isn't a problem with the chips?

Have you tested the mods that Dr_C mentioned? (lengthening the guide blade with black tape)

Also, can you visually inspect if the LED is seated low in in the car? Compare it to the Protoypes that work.

It could be you got a bad batch where the LEDs are not seated properly...

Dr_C

271 posts

Hi all, yes, Andy Ps suggestion is the sensible next step... try adding the black pvc tape to extend the back of the blade so that it finshes 10mm in front of the IR LED... this should then enable digital lap counting! if this sorts the problem, as I expect it will, next step will be to permanently reposition the IR LED... I or others can then talk you through what would be required... but first it makes sense to carry out the test with black tape which would confirm we are on the right track with our diagnostic...

 

C

Andy P.

1536 posts


Community Moderator

Could you provide us with more information please?

What is the revision number of your hardware (it is viewable in the APP)?

What version of the software are you using?

What revision are the digital chips you are using (likely G or H)?

Rev G chips have a large capacitor mounted to the PCB (yellow/blue packaging), Rev H have all nice small surface mounted components (grey packaging).

Could you also upload a picture of where the powerbase is located on the track?

There could be a combination of issues that have created a "perfect storm" here...

Thanks

@Andy P.

OK...

Final question(s): Have you tried the chips in other cars to rule out there isn't a problem with the chips?

Have you tested the mods that Dr_C mentioned? (lengthening the guide blade with black tape)

Also, can you visually inspect if the LED is seated low in in the car? Compare it to the Protoypes that work.

It could be you got a bad batch where the LEDs are not seated properly...

1: The chips were actually the first thing I tried. Made no difference.

2: haven't tried the tape thing yet. Will try tommorow.

3: LED's are seated the same as the Protoypes.

@Andy P.

Could you provide us with more information please?

What is the revision number of your hardware (it is viewable in the APP)?

What version of the software are you using?

What revision are the digital chips you are using (likely G or H)?

Rev G chips have a large capacitor mounted to the PCB (yellow/blue packaging), Rev H have all nice small surface mounted components (grey packaging).

Could you also upload a picture of where the powerbase is located on the track?

There could be a combination of issues that have created a "perfect storm" here...

Thanks

I'll take some pictures tommorow. 

Dr_C

271 posts

photos will be useful... but I personally believe the black pvc tape test will nail it.

 

Might you give this a try too?

 

C

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