IDX-PRO+VDI

[Sean_Goddard]

You COULD easily write a version ins PICBASIC it has an ArcTAN function!

Also you guys need to pay attention to checksums. Thing is finding out which bytes are used. The PIC Programmer should tell you the # checksum at the end of programming, next, go through the code to find a word that is equivalent, change the ACHTUNG MINEN to whatever you want, program, observe NEW checksum, go back and change the checksum word in the code.

BE AWARE that changing the checksum in the code, changes the checksum at the end! So you may have to tweak things a little. I suspect the protection is nothing more complex than that but of course I COULD be wrong!

ALL this system is doing is measuring the RATIO of X to Y, you will see that one input goes to the Vref input. This is how a simple ArcTAN is done so you can simply enable the appropriate input as Vref and NOT an analogue input, then read the ADC value DIRECTLY to get the VDI

ALSO, can anyone tell me what the trimmers do in the IDX project and how to set them to optimum please?

HOLYUSER, why not just change the message to "HOLYUSER VDI"? That would be very cool!

[eduardo1979]

IDX-PRO FINAL.

Hello everyone. I finally tried the IDX-PRO with the DD coil 27cm and is really incredible. 1€ coin to 60cm in the air. I'll post here the connections of potenciomeros because there are people on this forum I wonder how they connect private message potentiometers and everything else. Here everything is correct and guaranteed. Enjoy!

[Miata]

Hello Eduardo, nice work, thanks. Where can I plug the VDI-Board in your schematic?

Regards
Jürgen

[Orbit]

I do not understand this whole story ,What we see new and has already been seen long ago and ridicule I do not see anything there of some modifications idx for idx and others who I see no reason for such a noise .

[Orbit]

http://www.youtube.com/watch?v=hnI1j...eature=related .Asto concerning a second display that works great.

[Orbit]

idx pcb made with SMD components

[eduardo1979]

Orbit Hello! No change in particular. What I did was draw a new PCB. What I want has been to make the IDX-PRO DD coil and see how it works and nothing else. If you are bothered that I have here in the forum my results, I'm sorry, but I understand that this forum is for everyone and I love sharing my projects with everyone. If you have done in the past, this project seems very good, but I quieria take a chance on this project to see how it works. What you are doing now, is that despise my job. In this thread I will not publish anything else. Sorry. Greetings to all.

[satdaveuk]

Orbit Hello! No change in particular. What I did was draw a new PCB. What I want has been to make the IDX-PRO DD coil and see how it works and nothing else. If you are bothered that I have here in the forum my results, I'm sorry, but I understand that this forum is for everyone and I love sharing my projects with everyone. If you have done in the past, this project seems very good, but I quieria take a chance on this project to see how it works. What you are doing now, is that despise my job. In this thread I will not publish anything else. Sorry. Greetings to all.

Hi Eduardo
I and most others on here are very greatful for you input to the Tech forums, you and I and almost everyone on here at some point has been criticised for something thats been posted here, sometimes as a leg pull other times a little more serious but I never seen any malice here, so just forget about it and move on, and keep doing here as you always have.
kind regards
Dave

[Orbit]

Hi Eduardo I did not think anything wrong, nor have I thought to encourage you to ,to be angry far from it all are welcome here I am no one special in this forum certainly serves as a forum to what you wrote I had no intention of you in any way offend I am all for it first of all be friends Best regards .

[Orbit]

Be sure that you provide something new pcb is excellent from my heart I want you to remain here with us on the forum I am sure that this is a misunderstanding greeting again.

[eduardo1979]

Ok mates, then as friends. Maybe I misinterpreted the opinion of Orbit and I did not realize what he wrote in the previous post. Web translators do no good work and so things are misunderstood. We move on. Greetings to all!

[holyuser]

I suspect the protection is nothing more complex than that but of course I COULD be wrong!

Yes, You are wrong.

ALL this system is doing is measuring the RATIO of X to Y, you will see that one input goes to the Vref input. This is how a simple ArcTAN is done so you can simply enable the appropriate input as Vref and NOT an analogue input, then read the ADC value DIRECTLY to get the VDI

Nothing close.
Your supposition is very far away from the truth. Take a look at the datasheet carefuly, and You will see that noone input not goes to the Vref input.




The system is measuring VDI by calculating arctangent of y/x using math method in 16-bit precision. The precision of A/D conversion is 13-bit using oversampling.
So, the final precision is better than 0,3% of degree.

HOLYUSER, why not just change the message to "HOLYUSER VDI"? That would be very cool!

I will think over.

[strujas]

Hello everyone. I finally tried the IDX-PRO with the DD coil 27cm and is really incredible. 1€ coin to 60cm in the air. I'll post here the connections of potenciomeros because there are people on this forum I wonder how they connect private message potentiometers and everything else. Here everything is correct and guaranteed. Enjoy!

Eduardo did you used this data for 27 cm DD coil:
TX wire from 0.70 to 35 laps - 0.587 mH - within 1 mF capacitor
RX wire from 0.15 to 270 laps - 35.6 mH - 0033 mF condenser inside?

And have you tested that outdoor?
Regards!

[eduardo1979]

Yes. Air test.

[eduardo1979]

saw a curious thing in the behavior of IC LF347. I have a dozen LF347 and seen that there is one that has less gain than the other and testing in the air I noticed the difference. The secret of the scope of this detector is also is the IC. I recommend putting an IC socket and go for this by checking with several to get the maximum profit. The SMW was the same. Greetings.