Originally posted by lc516
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felezjoo PI(the best pulse induction metal detector that I made until now)
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Originally posted by jladre View PostBe sure that your wiring connection is not loose especially the connection to coil.
I just haven't coil can be used,have here only 0.2 mm of enameled wire. I made a simple coil, 10 cm diameter and 40 turns(1.8 ohm).
The detector to restart again and again using the inferior coil.
I'm a bit lost !!!
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Originally posted by cvele View PostAt first, I must say that my usual replacement of LF357-NE5534 does not work at all: 6" basket coil= little scissors at 10-12cm, coin = nothing! Now, I replace it with TL081 (the only close one that I can find in My shoe-box) and: "Its a kind of magic!" - with 7" spider coil, 400uH-(regular CHANCE-PI coil) and sens 19: 25mm coin go up to 30cm!! UNBELIEVABLE! But theres "catch 21" - poor or none iron-mask (or iron reject). Probably because of no used lf357, so please, if someone use originally op-amp, does it work propperly? Regard
PS- Thank You Ivconic for advice about Atmels EEPROM.
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Originally posted by sabios View PostI've programmed the ATMEGA328P but when programming the fuses stop me read the chip in the program I'm using the desert icprog.
if I do not equiboco are L-fuce: F7, H-fuce: D1 and Extended fuce: FC ...
What would be the error ...
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Originally posted by sabios View Postthen I have to put a 20Mhz xtal when programming with USBASP ...
I could teach you how to do it.
have another question first have to program the fuses and then record the truth Hex.
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Originally posted by jladre View Post[ATTACH]34469[/ATTACH]
I been go hunting last few hours in a known high mineral soil area and found out that felezjoo pi is useless in such area..setbthe detector to the lowest sensitivity, integ., speed, and highest ground and iron rejection but still the detector screaming when lay down few inches to surface.
Maybe it's just a toy, and wasn't quite that good as theory!!!
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