PIM-2 Digital Metal Detector Project

[wtrk]

Please contact with [email protected]

[bernte_one]

please ask the guys which made the programming
i think it depends also on the shipping procedure

but the Price is fair relating to Performance

contact Uykusuz

[Davis9000]

Hello Bernte!
What was the price for the microcontroller?

i never got answer from user mustafa, but some people who work with him at turkish forum

you can buy pre-programmed µcontroller from them, latest firmware is v10

detector is not bad, desgin ist easy and powerfull if you look the parts
also it are not many parts, pcb is small and easy to build

so the last things i have to to is debugging my version so that i works with lcd, the supply part is ok but i suppose the data lines are changed betwenn my board layout and the latest firmware
maybe i will look at the other concept pcb (the bigger one) and copare how the lcd is connected there

[Jose]

Hello Jose.
Just checked the thread after long time.
I don't know if it helps you, but i checked pim2 in simulator with the "fixed" hex file.
The threshold value can be changed in the main screen with the buttons.
Value goes from 0 to 20.

Hello mrtronik
Thanks for clarifying regard to the "threshold" mode.
We try to resolve the problem.
I will keep you informed.
Regards

[Boadil]

hi Boadil! can you send me the complete files for v5? please send me at [email protected]. i also want to build this.

I'm sorry, but I'm looking for those files as well.

[bernte_one]

right, i missed that i will add the pinout datas for my connection without that it is useless

[Speedy_G]

[QUOTE=bernte_one;212141]most diy projects last years are based on 1602 hd44780 lcd, because the are available in big quantities and its also an industrial standard

Dear bernte_one

As I expected you missed the whole point of my post regarding the various PINOUT possibilities that I referred to which was due mainly to the different manufacturers.
The photos of those LCD models that I posted as examples are ALL HD44780-compatible. The slightly different PINOUTS available on many of the LCD models does NOT always imply that those models are not HD44780-compatible.
All I'm saying is that those people building the Delta Pulse 2 or the PIM-2 pulse-induction metal detectors should be aware of the possible differences in PINOUTS on LCD models that might not be what they expect them to be (e.g. they may not be in the SAME order from #1 to #16). However, I want to make a note here that, in all the LCD HD44780-compatible versions I have come across, they all begin with #1 (as Vss/GND-) and and end with #16 (LED-/cathode).

Regards

Ciao

Speedy_G

[bernte_one]

most diy projects last years are based on 1602 hd44780 lcd, because the are available in big quantities and its also an industrial standard

at moment i am happy with pim2 mustafa but i have to install all for field testing and wait for better weather without snow
i have soem ideas for final setup, could be some nice small enclosure maybe hammond 1455 line with internal li-ion pack and charger

[Speedy_G]

[ATTACH]34809[/ATTACH]


how to connect pim2 mustafa pcb to 1602 lcd

Dear bernte_one


Thanks for 'how to connect pim2 mustafa pcb to 1602 lcd'.
This should help some people to realize that the pin numbering on the 'Header' of the Delta Pulse 2 PCB is somewhat DIFFERENT from that on the 'Header' of the PIM-2 PCB, whether it is the version 05 or 06


of the latter (large or smaller PCB respectively).


However, I see that the main problem is NOT the numbering of the LCD pin connections on the 'Header' on the PCB boards, but rather the MANY different PINOUT sequences on the different LCD models from


different manufacturing companies. I might also add that any competent electronics technician, whether professional OR amateur, can easily determine the most likely pin connections, such as 'ground', 'positive'


rail, etc. on the PCB board 'Header' by carefully examining the schematic drawing for either the Delta Pulse 2 or for the PIM-2.


So, what I have done here, is that I have uploaded some photos that show examples of some of the more common PINOUTS for LCD models from various manufacturers.
The PINOUT sequences (numbers) are shown in yellow on the three representative LCD examples (note that the numbering always begins with #1 which will always be the Vss (GND -) pin on the LCD itself.


I hope this will help some people trying to connect their various LCD models to the 'Header' on the PCB of either their Delta Pulse 2 or their PIM-2 metal detector board.


Regards.


Ciao,


Speedy_G

[bernte_one]

how to connect pim2 mustafa pcb to 1602 lcd

[mrtronik]

"fixed" hex file for those asking for it.

[mrtronik]

Hello Jose.
Just checked the thread after long time.
I don't know if it helps you, but i checked pim2 in simulator with the "fixed" hex file.
The threshold value can be changed in the main screen with the buttons.
Value goes from 0 to 20.

[Jose]

Thanks for answering Speedy_G
I recall your comments in the forum THunting.com concerning Delta Pulse 2 + PI.
I make the discriminator module at the time. A friend managed to block counter 200, but not to continue with this project.
As for the DP, the performance is very good.
Returning to the PIM-2, the yield is low, and noticed that is not available the "threshold" should be set between 0 and 20, as we read in the Turkish forum mode.
On the LCD, "T = 17" is read and is a fixed value that can not be altered, and corresponds to the "threshold".
As I said in my previous post, I do not know what the reason, either because it is a demo, or some error loading the program. Maybe someone made this project (Pim-2, V05), to remove doubts.
I performed some tests and measurements, and say that if I could perform audio module in the same way that the Delta Pulse (complete analog audio), the performance will be similar.
The field tests are still far for me.
I am using the currency in testing, it is bronze with a diameter of 23 mm.
Excuse my bad English.
Regards
Jose

[Speedy_G]

Hello jladre
I'm doing the first tests.
A bronze coin is detected in the air about 27 cm.
My coil has a diameter of 28 cm.
R 20, was replaced by a preset and adjusted to 3.6 K.
The "threshold" is not available, is error loading the program?, or because it is a "Demo". I do not know
Jose

Dear Jose


I had previously posted (THunting.com/Oct 2011) my detection results for the Delta Pulse 2+ PI metal detector (schematic by Elbombaci/Uykuzus) for a 1 Euro coin (as it is generally used as a reference for comparison in these MD forums). The sensitivity to a 1 Euro coin in an air test was 35 cm. At that time I also discovered that there was an improvement in sensitivity by about 10% when I replaced the 16 ohm speaker with a piezobuzzer.
So your obtaining 27 cm on a 'bronze coin' is meaningless unless you are able to specify the diameter (and maybe the thickness). Your coil diameter you said was 28 cm while my coil's diameter was 23 cm; so, in theory, your coil should have been capable of achieving a deeper detection distance (in air) than my coil, yet your results are worse.
I also want to build a 'digital' Delta Pulse PI (generally known now as PIM-2), but it would be stupid of me to embark on such a project if such a detector turns out to be LESS efficient that my existing Delta Pulse 2+ detector which I built some 3 tears ago and is working very very well.
As jladre was asking you in the previous post, we need an 'update how this machine work on real field' (his own words in commas...


Thanks


Ciao


Speedy_G

[Jose]

Hello jladre
I'm doing the first tests.
A bronze coin is detected in the air about 27 cm.
My coil has a diameter of 28 cm.
R 20, was replaced by a preset and adjusted to 3.6 K.
The "threshold" is not available, is error loading the program?, or because it is a "Demo". I do not know
Jose