felezjoo PI(the best pulse induction metal detector that I made until now)

[ivconic]

..... Why not give him respect ?

I am doing that now and was done earlier. I am impressed with his code.
And i need source code for to improve my own learning.
I started playing with Arduinos just month and few days ago.
I am very enthusiastic and am spending 16-18 hours inf front of my pc with arduino.
Great joy, great hobby and great education for me.
I wasted years doing other things, purposely ignoring mcu-s at the time.
Now i realize it was huge mistake that i made.
Now knowing all the pros and contras upon Atmega328P; i am even more impressed with Hammid's work and code.
Those are my reasons; to learn and to discover new things.

[Funfinder]

The whole thing is super simple and clear:

If I buy a house the formerly owner must not keep the keys to the cellar and attic
because there he has access to all the controls for electricity, gas, water and so on.

While I should became locked out from this essential area ...

No single house-buyer ever would accept such foul deals!

[greylourie]

You are not buying ANYTHING from Mr Hammid. Your argument is invalid. Trying to find an excuse to remove copy/clone protection from a free gift, can only lead to motives being questioned.

[Davor]

@Funfinder, sure, but what you described is perfectly fine if you rent a house. Equally it is OK when you rent a software. In EULAs you'll find it almost clearly that the software you paid for is a property of whoever sold it to you, and he may sue you and win if you spoil it in any way. So in effect you are renting that software, and in no circumstance you own it.
As for hardware, it may also be rented. Many modems we have in our houses are also "rented" in order for the operator to lock many functions from you, and to be able to load new firmware on his whim. You want Internet? Those are the conditions.

As Ivica says, this project may have a big educational impact, simply because it works on its own without any extra S/H, integrators, and whatnot.
But frankly, what is the dynamic range or S/N quality of a device that clings to a single 8-bit ADC? It may may be improved in so many ways, but at this point not without a source.

The author may have his own ideas for a commercial product, and we may never see the source.

[smity]

Ivconic, please draw a connection to the Arduino Nano 3.x

P.S. You can not draw, I understand.

[ivconic]

Ivconic, please draw a connection to the Arduino Nano 3.x

P.S. You can not draw, I understand.

You can use draw for Mini Pro. No difference.

[ivconic]

Ivconic, please draw a connection to the Arduino Nano 3.x

P.S. You can not draw, I understand.

My drawings and playing with Arduino was pure "academic" and sort of detailed bench checking the schematic and code.
For final device i can't recommend use of any Arduino with 16Mhz clock.
Mini Pro, Nano, Uno, Mega... all those are clocked by 16Mhz while original design is using 20Mhz clock.
I am not 100% sure if this is relevant; but it's kinda logical to expect it is.
Because after i tested it on Arduino; i got whole "picture" and am sure that author simply must used timers&interrupts to achieve all those functionalities in one "package" (which indeed impress's me).
Knowing that; we can freely assume (and be right about) that timings are critical. Also timings are calculated with main clock reference.
Difference between 16Mhz and 20Mhz is HUGE and is logical to expect complete misbehave of almost all timing functions in the code.
So, it works on the bench, on any Arduino... but only in testing purposes. And to prove concept.
Do not expect it to work acceptable in real conditions with proposed coil. Atmega 328p clocked with 20Mhz is MUST in this particular case.
Arduino served only to check the code, prove the concept... and screw the counter!!!

[lc516]

Iama novice and want achieve this project.
Who can upload .PCB file to share?
Thanks for your help!

[Toros]

Iama novice and want achieve this project.
Who can upload .PCB file to share?
Thanks for your help!

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[md4my]

I found a solution to this problem it is necessary, to connect the power supply - standby power to atmega ,bypassing switch off.

[WM6]

Nice solution especially if you charge your battery pack at the same time.

[touati]

My drawings and playing with Arduino was pure "academic" and sort of detailed bench checking the schematic and code.
For final device i can't recommend use of any Arduino with 16Mhz clock.
Mini Pro, Nano, Uno, Mega... all those are clocked by 16Mhz while original design is using 20Mhz clock.
I am not 100% sure if this is relevant; but it's kinda logical to expect it is.
Because after i tested it on Arduino; i got whole "picture" and am sure that author simply must used timers&interrupts to achieve all those functionalities in one "package" (which indeed impress's me).
Knowing that; we can freely assume (and be right about) that timings are critical. Also timings are calculated with main clock reference.
Difference between 16Mhz and 20Mhz is HUGE and is logical to expect complete misbehave of almost all timing functions in the code.
So, it works on the bench, on any Arduino... but only in testing purposes. And to prove concept.
Do not expect it to work acceptable in real conditions with proposed coil. Atmega 328p clocked with 20Mhz is MUST in this particular case.
Arduino served only to check the code, prove the concept... and screw the counter!!!

Do i understand you to Arduino or minipro is inadequate?


What is the programator that should be used?
Thank you

[ivconic]

Do i understand you to Arduino or minipro is inadequate?


What is the programator that should be used?
Thank you

Arduino or minipro or nano are inadequate to be used in FelezJoo PI metal detector in the way i presented it in my version of schematic, because of 16Mhz clock.
Atmega328P with 20Mhz clock is used in original design. So you can't expect proper performances if you use Arduino/16Mhz instead Atmega328P/20Mhz as in original schematic.
But you can use Arduino as programmer, to program hex code in another Atmega328P, no problem with that.

[lc516]

I want make a coil (

diameter greater than 1M

) to connected the PI, BUT that's I've never done before.

Please recommend some practical solutions about loop or coil. I want to know how they are made.

[lc516]

Thanks for your info!

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