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felezjoo PI(the best pulse induction metal detector that I made until now)
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Originally posted by useus View PostI've already posted them, both the original lf357 as you see above and the complete pcb two or three pages back
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Originally posted by LUPENGR29` View PostMice Work!!! The Vinil coil very smart!!! Do you have calculator for this double spider coil? Resistance and Inductance of this?with coil cable 0.5mm ?
coil detailsAttached Files
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Originally posted by LUPENGR29` View PostMice Work!!! The Vinil coil very smart!!! Do you have calculator for this double spider coil? Resistance and Inductance of this?with coil cable 0.5mm ?
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Originally posted by Rodelio View PostHello folks.
Ther's something i found about ATmega328 and the low fuse (full swing cristal oscilator) F7 in the case of felezjoo projet.
Seems to be that after the year 1915 the factory doe's not support any more to ATmega328p-pu this function.
So you can check it out in this link (https://youtu.be/93dSfEczqgk)...
I hope this can be ussefull to all who work in the felezjoo MD.
Regards to all.
what you say is the "rev K" of the atmega328p-pu that has never been released. I flashed two 1922 and they work perfectly.
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I finally received original lf357 from germany(ebay). tested with two coils.
Coil1: spider coil, 0.6mm copper bare wire, no shield, A301 B691 C785 1.6 ohm, 374uH, rg58 c/u
bs170 gate:
Coil2: bundle stranded insulated pvc tined copper, conductive cloth shield, A597 B733 C771 1.6ohm 361uH, rg58 c/u
I was expecting better performance for coil nr1, maybe i did something wrong... In both cases air detection depth for one coin is not bigger than 20cm.
What do you think about this measurements?
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Originally posted by bernte_one View Postpulse width 156?s? not a bit long for coin shooting?
i thing shorter pulse with higher freq give better results
coil inductivity close 300?H
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