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

[jladre]

"...as a frustrating project and a waste of time..."

I not the one who said that words!. I just said i never recommend this to other builder especially newbies in this world because it takes a lotvof patience to make it work impressly.

[ivconic]

"...as a frustrating project and a waste of time..."

I not the one who said that words!. I just said i never recommend this to other builder especially newbies in this world because it takes a lotvof patience to make it work impressly.

Yes; "patience" is the right word!

[jladre]

"...as a frustrating project and a waste of time..."

I not the one who said that words!. I just said i never recommend this to other builder especially newbies in this world because it takes a lotvof patience to make it work impressly.

Only I did not understand a large antenna if anyone is pleased with the work and depth?

Yes you can make large antenna for this.. Just keep the coil requirements. I have made big antennas for this already. Look on the videos. The 2nd video show how i perfectly discriminate. I want to upload sooner how this machine perfectly descriminate between gold, silver, aluminum, and iron in a very first inches he sense.
https://m.youtube.com/watch?v=2mQVF7v1quw
https://m.youtube.com/watch?v=ceU_laS5GB0
Note: you can make a 1x1 or 2x2 antenna for this.. My 50x60 inches can detect a water container at 2.5 meters.

[ivconic]

Yes you can make large antenna for this.. Just keep the coil requirements. I have made big antennas for this already. Look on the videos. The 2nd video show how i perfectly discriminate. I want to upload sooner how this machine perfectly descriminate between gold, silver, aluminum, and iron in a very first inches he sense.
https://m.youtube.com/watch?v=2mQVF7v1quw
https://m.youtube.com/watch?v=ceU_laS5GB0
Note: you can make a 1x1 or 2x2 antenna for this.. My 50x60 inches can detect a water container at 2.5 meters.

Nice done Jladre!
But buzzer sucks big time!
Why don't you use some good speaker?
I discovered miraculously nice speaker for this and other projects!
It is in almost "micro" size and yet extremely powerful with pleasant and "bass"-y audio!
It's the one of two speakers taken out from scraped Huawei 7" tablet!
The very best speaker i saw so far; 16 ohms and 2 watts!!!
Size 1.5cm x 1cm!!!
You can see it in my video on one of two detectors, the one mounted on stem.
You don't need to chase such speaker, any similar will do much better than buzzer.

[jladre]

Thanks ivconic! I will try to salvage some in my junk tablet and phone.

[bernte_one]

thanks Ivica for the info with Arduino Uploader Tool, would be the easiest way to manage this

[Funfinder]

@ jladre
> This project is dead now! No one is still interested to it for the reason of annoing reprogramming the chip

For me such words represents clearly a huge amount of frustration.

But of course you must not see it as a waste of time, if something is personally worth enough
somebody should take its time for a thing, project or person even if its frustrating. No pain no gain!


@ ivconic
You can speak easily and say it's a very lucrative project because compared with jladre you have the counter eliminated.
But maybe you make him more motivated or interested by some private present or whatever, it is not my business.
But now with the new info you have helped him already a good step ahead.

Seen from the technical complexity it might be surely an interesting project.
There is not just only a simple LED that blinks if some metal is near, its merely some little micro-computer-detector.

I just have my doubts about the recovery speed. OK, you might have time enough to sweep slowly and relaxed
the coil but if the whole searching process takes too much time even the little bit gain in highly mineralized soil
(if available at all) compared with IB-detectors might be lost.

btw. thanks for the videos and finally a question:
Are you really sure this thing is deeper than the Pulse Star II, one of the best PI detectors ever made?
Hard to believe. Perhaps only your model because you built everything most perfect and professional -
but I wouldn't make others the same big hopes.

[ivconic]

@ jladre
> This project is dead now! No one is still interested to it for the reason of annoing reprogramming the chip

For me such words represents clearly a huge amount of frustration.

But of course you must not see it as a waste of time, if something is personally worth enough
somebody should take its time for a thing, project or person even if its frustrating. No pain no gain!


@ ivconic
You can speak easily and say it's a very lucrative project because compared with jladre you have the counter eliminated.
But maybe you make him more motivated or interested by some private present or whatever, it is not my business.
But now with the new info you have helped him already a good step ahead.

Seen from the technical complexity it might be surely an interesting project.
There is not just only a simple LED that blinks if some metal is near, its merely some little micro-computer-detector.

I just have my doubts about the recovery speed. OK, you might have time enough to sweep slowly and relaxed
the coil but if the whole searching process takes too much time even the little bit gain in highly mineralized soil
(if available at all) compared with IB-detectors might be lost.

btw. thanks for the videos and finally a question:
Are you really sure this thing is deeper than the Pulse Star II, one of the best PI detectors ever made?
Hard to believe. Perhaps only your model because you built everything most perfect and professional -
but I wouldn't make others the same big hopes.

First comes answer on your last question. If you payed attention; i wrote:

"...So, now, FelezJoo beats up PSIIPro on small and medium sized objects, easily..."

So, on small and medium sized objects...
Small like coins, medium sized like metal plate 10cmx10cm.
I still don't have larger coil for FelezJoo PI to know how it would perform with it.
And PSIIPro is mostly good in that area; with larger coils and deeper larger objects.
But in this particular test that i performed; FelezJoo was better.
...
FelezJoo PI is better as slow motion. Not for fast swinging.
...
Counter is not enough good reason to give up from making this nice hobby project.
300 "power on's" is much more than enough for decently long period of use.
And if Atmega is put on socket; than re-flashing is easy task.

[jladre]

"Counter is not enough good reason to give up from making this nice hobby project.
300 "power on's" is much more than enough for decently long period of use.
And if Atmega is put on socket; than re-flashing is easy task."

My problem is I have a very little knowledge in programming. And about the reflashing the chip is a big problem to me because my machine is used for underwater hunting and the enclosure is permanently sealed.

[WM6]

Don't power it OFF after use and put it on power supply at home, when not in use.

Atmega328P has low power consumption Sleep and Standby modes:

• SLEEP_MODE_PWR_SAVE: 1.62 mA
• SLEEP_MODE_EXT_STANDBY: 1.62 mA

Maybe you can rethink solution like this:

http://www.home-automation-community...-cell-battery/

[jladre]

Don't power it OFF after use and put it on power supply at home, when not in use.

Atmega328P has low power consumption Sleep and Standby modes:

• SLEEP_MODE_PWR_SAVE: 1.62 mA
• SLEEP_MODE_EXT_STANDBY: 1.62 mA

Maybe you can rethink solution like this:

http://www.home-automation-community...-cell-battery/

Very good site WM6! i can used it not only for this project. Very power efficient idea..

[Funfinder]

@ WM6
> Don't power it OFF after use and put it on power supply at home, when not in use.

Genious idea but it sounds funny "put it on power supply at home".

The metal detector like a smartphone always on a docking-station to keep it on standby and the batteries full.
No no! And what is jladre doing if the batteries run empty while searching?

What he needs is an internal standby circuit that keeps the chip always on low power consumption running.
Either by LiPo accu or lithium or alkaline battery.


@ ivconic

Thanx for the additional info and that it needs rather slower sweeping for good performance.
When I hear that already I know that it would be far too slow for my search-behaviour.
Do you have some very loamy area around or red brickstones?
If yes you can compare the depth there for medium small stuff with the Deus.

Great depth for larger objects with a big coil:
Of course only if this coil was built good and stable enough for this task and if the detectors EM-field is not too weak!
This could be the criticial point because it seems not to be a detector that can create very strong EM-pulses.
You know it, how high is the power consumption or how long lasts a specific amount of batteries?
Next we can compare this value with the PS2 (= Playstation2 ) or PSII Pro.



@ jladre:
For underwater and "always on standby" you need an internal accu-circuit for the chip only
and an additional waterproofed connector. Or: you could create an external battery-housing.

[ivconic]

...
@ ivconic
...
Do you have some very loamy area around or red brickstones?
If yes you can compare the depth there for medium small stuff with the Deus.

Great depth for larger objects with a big coil:
Of course only if this coil was built good and stable enough for this task and if the detectors EM-field is not too weak!
This could be the criticial point because it seems not to be a detector that can create very strong EM-pulses.
You know it, how high is the power consumption or how long lasts a specific amount of batteries?
Next we can compare this value with the PS2 (= Playstation2 ) or PSII Pro...

I have several sites close to my home which are horribly mineralized. Even Deus there is having a lot of troubles.
But i assume Deus will still be by far better performer on such soil and on small and smaller items, like cash, coins, small jewelry etc...
That's what it is designed for, the Deus. I have never seen so far any detector which will beat the Deus in such terms, therefore i don't expect neither FelezJoo to do that.
...
I still can not say details about FelezJoo PI, because all i did so far is one skim and simple test in my backyard.
Considering the depths, i can say only what i saw and experienced so far with it.
Best depth on that test was 1.1 meters in soil on Fe/Zinc pipe, 1" diamm. 120cm long, completely buried in soil.
So... 1.1 meters on such object, completely buried and covered with medium mineralized soil and with 38cm round coil.
Deus was not able to detect it with small 22.5cm coil. But it detected it with larger 34x28cm coil with mum and weak response.
PSIIPro detected it with 45cm coil too. Response was pretty spurious and undefined, yet it was detection.
FelezJoo detected it with clear and sharp response, with no doubts at all.
...
Consumption... funny thing; i never measured it?! Can't tell.
I am using 12v/1.3Ah gell cell battery, connected to dc/dc (two switches on video ; one to make connection between accu and dc/dc and another to power On the detector), giving finally 17.2V.
It lasts and lasts and lasts... so far i haven't put it on charger yet.
Can't tell details until i measure all and perform more tests.

[jladre]

"Consumption... funny thing; i never measured it?"

My machine only take 70mAh. With some other setting it rise up to 90mAh.

[6666]

Thanks have just ordered a UNO, being posted from here in Australia so hopefully it will be here in a week or so.

Its in the mail, or so the seller tells me.