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Offline xavier
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« Reply #50 on: December 30, 2012, 01:38:56 pm »
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Quote:Posted by GoldDigger1950
Ah, that's my boy!

 Grin Grin Grin Grin That Colpitts oscillator did the job GD works better than an inductance meter (In a way)

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Offline GoldDigger1950
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« Reply #51 on: December 30, 2012, 01:45:29 pm »
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I know that you can visualize a lot more of functioning circuits in your head with all the work you have done. That's real learning, mate. Good on ya!

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It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
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Offline xavier
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« Reply #52 on: December 30, 2012, 01:52:22 pm »
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It's like I always say ...... had a good teacher  Wink

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Offline GoldDigger1950
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« Reply #53 on: December 30, 2012, 03:07:59 pm »
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Bring your teacher an apple.

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It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
Let's Talk Treasure!
Offline TeemoTopic starter
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« Reply #54 on: January 09, 2013, 08:34:58 pm »
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Hello!

I have made the new special firmware for testing the circuit. It is for connecting to the PC.
More details on this page:

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http://digiwood.ee/en/metal-detector/computer-connection

I also post the circuit and the firmware assembler source code and hex file directly to here as attachment.
Use on your own risk, of cource.

Teemo

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« Last Edit: January 09, 2013, 08:37:46 pm by Teemo » 		Logged
Offline xavier
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« Reply #55 on: January 10, 2013, 04:07:03 am »
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Hi Teemo

Don't quite know why I'm having problems posting today. These are the files on how I build my PI Pin-pointer 

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PI-Code.txt
Pin-Pointer-1.1.5 - PCB.pdf
Pin-Pointer-1.1.5 - PCB2.pdf
Pin-Pointer-1.1.5 - Schematic.pdf

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« Reply #56 on: January 10, 2013, 07:28:27 am »
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Thanks Xavier! I will take a look at it.

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« Reply #57 on: January 10, 2013, 02:01:43 pm »
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No problem, perhaps you can use a few bits and pieces for yours.

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« Reply #58 on: January 26, 2013, 04:45:27 pm »
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Hi
I have once more update to the firmware. Cool
Now I added automatic comparator reference calculation. This is for the internal PIC circuitry. This improvement is based on the feedback from the builders and makes it even more easier to get the circuit running with different coils.
However I never had much feedback about computer connection firmware. At the moment the connection possibility is included in the default firmware (activated by pressing button two times fast. Should I keep it there or should I do "regular" firmware without this function, to keep it simple? Because of that RS232 code the firmware gets unnecessarily complicated. I guess the firmware code is already enough complex, even without RS232 for anyone to understand but me. But who cares, just use it, its free Smiley.
I add new ver assembler source code, and hex ver1.26 here as attachment too.

And I got PCBs. Also available from my

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shop
, for those who prefer.


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Offline GoldDigger1950
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« Reply #59 on: January 26, 2013, 06:13:36 pm »
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Quote:Posted by Teemo
Because of that RS232 code the firmware gets unnecessarily complicated. I guess the firmware code is already enough complex, even without RS232 for anyone to understand but me.

Isn't the external programming just a bit select to turn it on? Using the external programming cable via the Microchip interface is a snap. You could use that instead of full RS-232.

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It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
Let's Talk Treasure!
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