My New Pi Metal Detector (ATTiny 25)

[jon-ecm]

Hey, Sorry I'm on here just about every day but didn't even notice these posts.

@mickeu, Like 6666 mentioned, probably the best thing to do about that is email me, Since spammers will get my email if I post it here it's probably best to use the contact forum on my website, www.miymd.com

@target ID is very difficult with any PI machine but the techniques used in this design don't leave much room for target ID except ferrous discrimination when used with a double D or O coil

@6666 How is the project coming along? Got the RX board finished?

Hope than answers your questions.

Jon

[6666]

Hi Jon
the rx board is not completed yet but hopefully soon

[mickeu]

Only +12v



Will it work?
Header P3 is only for external pot with power switch.

[jon-ecm]

Wow, interisting concept, the power supply looks good, do you have plans on how your going to hook the FET up yet? Or did I miss that in your design?

[mickeu]

Helo Jon again

TX and RX is on separate boards connected using goldpins. I just need to add connection for capacitor somwhere near coil.

This is TX section:


PCS's:

Collision on TX PCB is by mask of POT ( i don't have slim one footprint)

Board sizes:

TX 15 mm x 40 mm

RX 15cmm x 51 mm

Also i think to add LF357 inverting signal between diodes and signel reciver, then only 12V without power doubler should be enought

[6666]

This looks good
I have not completed my project yet.

Mickeu
make sure you use the correct TX hex
http://www.miymd.com/main.hex

[mickeu]

Jon
Can you tell me what is the sensitivity for object size frag grenade or 0,33 coke can?

[bernte_one]

any News on this Project?
did anyone finished it to build a working detector