Here's one I prepared earlier

[Tec]

Assembled and put in a box.

[WM6]

Very pro PCB look, Tec.

According seen parts used, I'm interested in what is its power consumption?

[Tec]

power consumption

Very pro PCB look, Tec.

According seen parts used, I'm interested in what is its power consumption?

Thanks.

It draws a total of 152mA:

~ 80mA goes into the coil pulses (100uSec pulses at 580Hz)

~70mA for everything else, mainly the pic32 which is running at 20MHz.

[oadamo]

specs/info/cost because i haven't a clue what i am looking at lol.
adam

[Tec]

It's PI metal detector. It detects metal and also the conductivity of the metal. It is expensive.

But if anyone wants a circuit board designed, or built, I am expensive but good.

[rev0lt]

Hi Tec,

Any updates on this? I am interested in this board and your $59 coil..

[Tec]

Hi Tec,

Any updates on this? I am interested in this board and your $59 coil..

Hi,

Yes I have coils (Shielded 350uH, waterproof, acrylic ring).

There has not been any more development on the SPI-MX,
If you need any info on any part of the circuit I can give it to you.

Cheers,
Tec

[moscadondres]

Hi Tec,
Do you sell one programmed pic for SPI,best regards.

[Tec]

Arduino Footprint

Hi,

No. I am working on a new design and using Arduino style board. These are so cheap (< 35), but they are powerful super-computers compared to what we had 10 years ago, and can be programmed from a USB port without special tool.
There are a number of different micros that are available in this 'Arduino Style' footprint. I believe they make an excellent platform for a metal detector: Have a look at the Freescale 'Freedom Board', The PSOC 'Explorer' board, and the Arduino boards (Atmel) . Because the next design will be based on one of these it will be simple to just buy on and download the code.

[moscadondres]

Hi,
Thank you,i'm waitting news.