Epe pic magnetometer

[damiafix]

Hi Chris,
thanks for the explanation, you are my reference point!
I read in this forum and others, that the EPE Mag is much better of the SC007 gradiometer, yes it use the same sensors, but I can make records and I can to analyze the results with a software; with the FMX-1 it's hard. I don't found anyone that use the FXM-1 with a external logger, it's very strange, and again strange that with the "same sensibility" much people prefer undoubtedly this project to the FMX-1 gradiometer!
I've a PIC programmer, that I used for my old midi/audio controllers, I'm not a programmer but I use it without particular difficulties ( I hope ).
I've the 2 FGM03 sensors (from the gradiometer project) and also for to understand as work a data logger (this is my first time) I think that this could to be a low cost experience! What do you think?
About the velocity, yes I read that for good results it's necessary to go very slowly, but when you write

Take your MAG for a walk, but slowly, it yields results.

you refered to my FMX-1 gradiometer, or the next project that I would to build?
For the Gradiometer, for now it's placed in my garage, I must to replace the battery (I used a rechargeable 9 volts battery, becouse to buy every time, a new battery is not convenient).
I am a bit disappointed by the results, all the test, all the checks; yes, it work but for my early experience, it's not suitable for a real field use, with a pulse induction I get better performances, but I'm new in world of the magnetometers, maybe I'm in error.
So I hope to understand something of new, with the EPE project, and then, if this still will be not suitable for a field use, maybe in the future, I'll buy a decent magnetometer.


All the best, D.

[Krzysztof]

Hi Damiafix.
How do I do not know what it is about money!
Best regards Chris.

[damiafix]

Hi Damiafix.
How do I do not know what it is about money!
Best regards Chris.

I'm sorry Chris, I don't understood your reply!
Maybe you want to say that you don't have never bought a magnetometer? Do you have build from yourself your tools, every time?


All the best, D.

[Krzysztof]

Hi Damiafix.

Hi, my IM TRANSLATOR refuses to cooperate in the evenings?
I think the FMX-1 is easier to put back, and therefore may be cheaper for him to learn MAG.
The sensor is the same, but the resolution could be better, it depends on the program. Do not analyzed it yet.
But well, at least if you read the file MAGGY710.asm. There is absolutely everything. Understand it, you have full knowledge of MagEPE.
It is used batteries from the phone komurkowego Nokia, a long time after charging hold 4.0V. The best part is that the inside does not show any magnetic properties, not sticks to the magnet.
Our colleague Fitz wanted to make audiologer FMX1, ask for results.
I'm at the stage of the purchase logger "OpenLog" from Sparkfun for $ 25. It is interesting.

Maybe you want to say that you don't have never bought a magnetometer?

Yes

Do you have build from yourself your tools, every time?

Yes
I do not want and I can not burden the family budget, so any ideas for MAG are DIY.
This is my mental gymnastics, I chose the interesting and difficult way.
Best regards Chris.

[damiafix]

Hi Chris,

I think the FMX-1 is easier to put back, and therefore may be cheaper for him to learn MAG.

Yes, perfectly agree with you, with this project I'm joined in the world of magnetometers, the study of the magnetometry and much other. In every case, not are money lost, not time lost, from my view point.

The sensor is the same, but the resolution could be better, it depends on the program. Do not analyzed it yet.
But well, at least if you read the file MAGGY710.asm. There is absolutely everything. Understand it, you have full knowledge of MagEPE.

I don't know the assembler, I think that I'll start to study it!

It is used batteries from the phone komurkowego Nokia, a long time after charging hold 4.0V. The best part is that the inside does not show any magnetic properties, not sticks to the magnet.

I'll looking for some Nokia phone battery, this is a good idea!

Our colleague Fitz wanted to make audiologer FMX1, ask for results.

Oh yes, I'll ask to him!

I do not want and I can not burden the family budget, so any ideas for MAG are DIY.
This is my mental gymnastics, I chose the interesting and difficult way.
Best regards Chris.

Yes, I understood perfectly, and I agree with you!

In every case, the EPE project is started



this is the PIC programmer that I've built some year ago, the JDM :



It should to be suitable for the PIC16F877-20 (I must still buy this pic) from the home page of the designer, I read that:

This Programmer is powered by the RS-232 and it works with RS-232 levels at only < ±8.6V. It programs PIC12C5XX, 12C67X, 24CXX, 16C55X, 16C61, 16C62X, 16C71, 16C71X, 16C8X, 16F8X and ISO-CARD's with ASF. Other serial programmable chips by adapter.

so should to be all right!


The next step, will be to buy the missing components (the pic, the lcd display and other)!

About your electronic projects, how is the best MAG that you have realized? There is some schematic from to see?

All the best, D.

[Krzysztof]

Hi Damiafix

Each time everything in my head, still new ideas. Always on the go.
Now I fight with the PSoC microcontroller there to push the entire MAG, especially FGM.

Best regards Chris.

[damiafix]

Hi Chris,
Do you use the FGM sensors in your projects?

Sincerely, D.

[Geo]

Hi.
Does anyone can post to me the .Hex file for the EPE magnetometer!!!!

Regards

[ApBerg]

http://www.epemag3.com/index.php?opt...d=24&Itemid=38

Hello Geo,

Think you are good in searching.... you can find the info at the Epe site.

Best regards.

Ap.

If not .. let me know

[damiafix]

Hi Geo,
are you passing to the EPE Mag project?

All the best, D.

[Geo]

http://www.epemag3.com/index.php?opt...d=24&Itemid=38

Hello Geo,

Think you are good in searching.... you can find the info at the Epe site.

Best regards.

Ap.

If not .. let me know

Hi Aq.
Long time!!!
I have all these files but i am sure if one ".hex" file inside to the zip file is the right. Also tonight Epitopios sent me the same file.
Any way Thank you

Regards

[Geo]

Hi Geo,
are you passing to the EPE Mag project?

All the best, D.

Hi Damiafix.
I don't let the Carl's gradiometer. Simple... tommorow i will order a new SCL007 and a AD557, and until to receive i will have time to make and the EPE magnetometer.

Regards

[golden_greek]

which is the best distance betwin the sensors in epe pic magnetometer?

[piramida]

Hello everyone
whether it is worth making this detector for larger items and caves at depths of 3 to 5 metara.teren is very rocky and poor
what are your experiences with this detector please your Kajita me for 3 years trying to find a good detector for the High Seas
thanks everyone

[lazzy]

Hi ivconic,

I am glad to hear that you have constructed EPE mag and works properly!

I also constructed it but, despite the fact that construction plus components and connections are ok and tested "to the book", and the pic is properly programmed, I cannot make the kit function properly.

Please allow me to describe the problem I'm experiencing, asking for advice from someone who actually constructed the kit:

Only the first time I ran the instrument after construction, it went through the whole cycle of functions described in the article (showing for example, the sensor's readings, the intensity bargraph, etc.) - but this only lasted for about 10-15 seconds and only in the first run; after that, I constantly get the following 'unstable' behaviour:

- lcd shows some info, then goes blank; sometimes, lcd remains blank from switching-on (but sampling beeper beeps and diode flashes)
- eeproms are not detected (although present) or detects only one of them (of course, as you mention, it can still work without any eeprom attached)
- after the initial 'welcome' messages, information on the lcd is intermittent: there appear some numbers, sometimes like the ones shown in the magazine article, sometimes unidentifiable rubish
- response to panel switches is also problematic: for example, diode D1 is activated with 'Record' switch and diode D2 with the sampling rate

This behaviour exists with/without the sensors attached, and even with replacing the pic with a pre-programmed one (I use Velleman K8087 for programming, while the pre-programmed pic is supplied by Magenta Electronics).

I have tested all connections, re-programmed the pic many times, but behaviour remains 'unstable'.

Persons who further tested the kit, advised that it is electronically ok and thus the problem should be with the pic program code. But how does this explain the "correct" behaviour in the first run?

Personally, I think the problem is somewhere else, perhaps in some faulty component or the circuit design... I have thought about the eeprom chips, but the unstable behaviour is still there whithout them; I have also thought about improper programming of the pic, and for that reason I tried to use a pre-programmed pic, but the problem still exists!

I was afraid that the overall project shoud be rejected. But, having seen from you that construction can be succesful, I would much appreciate your help with overcoming the above problem and make the 'maggy' kick!!!

Regards
Lazzy

p.s. I have also constructed epe reslogger and works just fine! ;-)