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06-27-2005, 05:41 PM
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#121
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MySQL Error
Join Date: May 2003
Location: Miami, FL
Posts: 4,353
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yeah I would use a small relay to do that switching, to make sure you keep the 12v away from that input
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06-28-2005, 11:54 AM
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#122
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Maximum Bitrate
Join Date: Feb 2004
Location: NYC
Posts: 597
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what's the benefit of wiring the reverse anyway? Seems like more work for something that current software doesn't support???
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06-28-2005, 12:20 PM
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#123
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MySQL Error
Join Date: Mar 2004
Location: Bristol
Posts: 13,521
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Quote: Originally Posted by nl4jy
what's the benefit of wiring the reverse anyway? Seems like more work for something that current software doesn't support???
well if you start going backwards you still get the VSS speedo pulse but the car is going the wrong way and without a compass the DR does not know you are going backwards as there is no rotational change to detect. It would need a fore/aft accelerometer or compass to detect without the reverse input - hence a $1 solution (bit of wire and a connector) or a $50 solution.
__________________
If you want more answers on anything I have posted you can find me at digital-car.co.uk
or skiing or diving or doing somthing else fun!
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06-28-2005, 02:52 PM
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#124
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Raw Wave
Join Date: Oct 2003
Location: Madrid
Posts: 1,983
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Quote: Originally Posted by nl4jy
what's the benefit of wiring the reverse anyway? Seems like more work for something that current software doesn't support???
What do you mean "something that current software doesn't support???" ?
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06-28-2005, 05:41 PM
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#125
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Constant Bitrate
Join Date: Dec 2004
Location: Where its windy
Posts: 175
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WoW! I was just going to order a GPS mouse and call it good 
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06-29-2005, 11:04 AM
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#126
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Maximum Bitrate
Join Date: Feb 2004
Location: NYC
Posts: 597
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Quote: Originally Posted by Laidback
What do you mean "something that current software doesn't support???" ?
nevermind, I thought the software will determine that I'm going backward or not. I understand what's the reverse do now. It's to ensure my map doesn't go forward while I'm going backward right?
hmmm... so If I put a relay on my backlights line to kick the reverse line to ground when it detects that I'm going backward. That would solve it right?
Laidback, in the meantime, what is your reverse line connected to? nothing?
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07-09-2005, 08:40 AM
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#127
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Maximum Bitrate
Join Date: Feb 2004
Location: NYC
Posts: 597
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Grrrrrrr.... I finally sodder everything and wire it up to the car. And guess what??? It doesn't work!!!! Grrrrr.... I think it's my lack in soddering skill. I may have to rewire the whole thing again. Grrrrr...... Any tips on how to start?
Maybe I had the connectors all wrong. How is the numbering sequence go on the max chip and the ublox pins?
I though on the max it's 1-10 on one side and 11-20. And the ublox is odds on outter row and even on the inner row.
I guess I should have start this thing one at a time, and test it in house b4 trying it the first time in the car.
any update on the pcb board? It's looks extremely tempting after this first attempt.
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07-11-2005, 07:11 AM
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#128
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Raw Wave
Join Date: Oct 2003
Location: Madrid
Posts: 1,983
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Yeah, I think your pin numbering is correct, I tested mine indoors as I built it.
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07-11-2005, 10:18 AM
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#129
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Variable Bitrate
Join Date: Apr 2004
Location: The land of polar bears and nekkid blonds
Posts: 446
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Quote: Originally Posted by jcdillin
Well if you give me a few days I can design a PCB
Is this still the plan ?
Cheers,
/M
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07-11-2005, 11:14 AM
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#130
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Maximum Bitrate
Join Date: Feb 2004
Location: NYC
Posts: 597
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Quote: Originally Posted by Laidback
Yeah, I think your pin numbering is correct, I tested mine indoors as I built it.
darn, that means I screwed up somewhere. Maybe I should just try without the gyro first. Is that how you started out?
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07-11-2005, 11:44 AM
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#131
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Raw Wave
Join Date: Oct 2003
Location: Madrid
Posts: 1,983
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I did, do you get anything at all from it? You know the default speed is set to 9600? or something like that...
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07-11-2005, 11:49 AM
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#132
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Raw Wave
Join Date: Oct 2003
Location: Madrid
Posts: 1,983
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See..
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07-11-2005, 11:53 AM
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#133
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MySQL Error
Join Date: May 2003
Location: Miami, FL
Posts: 4,353
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Quote: Originally Posted by Maximus
Is this still the plan ?
Cheers,
/M
yes, i'm just waiting to save up some money to get the unit and get some money together to pay for the prototype boards
just been trying to get somewhere on the backlight project
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07-11-2005, 12:11 PM
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#134
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Variable Bitrate
Join Date: Apr 2004
Location: The land of polar bears and nekkid blonds
Posts: 446
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Quote: Originally Posted by jcdillin
yes, i'm just waiting to save up some money to get the unit and get some money together to pay for the prototype boards
just been trying to get somewhere on the backlight project
No worries, I'm in no rush what so ever... just curious if that was still the plan.
Seems unnecessary that everyone keeps re-inventing the wheel if "we" will have a PCB and component list in a few weeks / months time.
Let me know if you need any help with anything.
/M
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07-11-2005, 12:28 PM
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#135
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Raw Wave
Join Date: Oct 2003
Location: Madrid
Posts: 1,983
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Quote: Originally Posted by Maximus
No worries, I'm in no rush what so ever... just curious if that was still the plan.
Seems unnecessary that everyone keeps re-inventing the wheel if "we" will have a PCB and component list in a few weeks / months time.
Let me know if you need any help with anything.
/M
Well, he needs help with getting some money! 
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