SpiMX PINNACLE

[Tec]

Improved design.

1. Quieter Analog supply (lower noise).

2. Separate supply for coil (allows using separate higher voltage supply to coil)

3. Simpler Bi-Polar pulsing circuit.

4. Uses Arduino Due. Mega-powerful 85MHz 'Arduino'. Allows easier understanding and customization of the firmware.

[greylourie]

Hi Tec,

Thanks for the pdf.
Bipolar pulse, interesting ! Do you have any scope shots showing tx in action ?

[Tec]

Scope shots

Attached is scope traces:

1. Pulses train across the coil
2. Close up of single pulse at coil.
3. Pulse at Test Point 5, before the amplifier.

[Tec]

I have made a website for this detector.

www.tctec.net/spimx/

Tec

[WM6]

Congratulation on this project Tec.

Especially on 3D printing parts. Are those 3D printing parts enough robust for everyday loads?

[Tec]

Thanks,

They are ok so far, after about a dozen uses over a few months.
The coil and coil-mount are filled with epoxy.

The other parts are PLA plastic straight off the printer,
I plan to take them underwater soon.

Tec

[Tec]

Arduino code published
Schematic updated

www.tctec.net/spimx

[freds]

Hello TEC.
Great work...I`m impressed
Would love to give this on a go..
Are PCB`s available?. If so please let me know price/postage to Australia
My Emal: [email protected]

Thanks in anticipation

[captainart3000]

What kind of switch is U14? Its not marked.
I would like to give this project a try.
Thank you

[Tec]

Hi, U14 is a 4011 (Cmos NAND gate). Sorry for missing the part number on that.

[captainart3000]

Cool. Thank you. The video is not working. Anywhere to see how this device works?

Thank you

[captainart3000]

Hi Tec,

Is pcb layout available?
I started laying it out in eagle but afraid to screw something up.

Thank you