felezjoo PI(the best pulse induction metal detector that I made until now)

[MartinB]

Did you leave an air gap in the shielding? Did you connect the shielding to ground?

[manos]

Hi i made two of this metal detector felezjoo pi from the #1 post, i have the same problem work ok with metals but when i start with the disk 30cm spider coil 380 mH 1ohm
in the ground filter i put 1 to 3, then i press down, when i start walk it start ring i press again down and stop when i do a few steps start again i keep the disk about in 10 or 30 cm of the ground but allways ring with the 3 numbers of coil 302 700 789 . Any help for this problem ? Thanks.

Any Help for this please.

[manos]

yes i have shield the coil with the N-77 GRAPHITE SPRAY ,but they ring and before with out shield, no i dont have photo and ring with any coil i made

[Emersonpaz]

Did you shield the coil? Do you have any pictures of your plate and coil?

[manos]

Hi i made two of this metal detector felezjoo pi from the #1 post, i have the same problem work ok with metals but when i start with the disk 30cm spider coil 380 mH 1ohm
in the ground filter i put 1 to 3, then i press down, when i start walk it start ring i press again down and stop when i do a few steps start again i keep the disk about in 10 or 30 cm of the ground but allways ring with the 3 numbers of coil 302 700 789 . Any help for this problem ? Thanks.

[manos]

Hi do you have the felezjoo target id list (number and metal )
like this but for felezjo. :

[manos]

Try to reprogram again the atmega 328. Verify connections to display and power supply for display. If i remember correctly first start after programming you need to push ok button when you see letters, if not, will disappear, too much/less contrast.

thanks, i fixit the connections in display one pin have not good contact

[MartinB]

Some nice ideas there.

[ivconic]

[ionut_mtb]

Any help for this ?

Try to reprogram again the atmega 328. Verify connections to display and power supply for display. If i remember correctly first start after programming you need to push ok button when you see letters, if not, will disappear, too much/less contrast.

[manos]

Hi i made felezjoo and i don't have letters on screen, when i power on i have sound and in off, were i should look for it, i post some photos , thanks.

Any help for this ?

[manos]

I check the green spot and the red is ok but still not work the lcd

[Emersonpaz]

It is visible that there may be a short or dot in red or broken track in green check.

[manos]

felezjoo photo thanks if can help me

[manos]

Hi i made felezjoo and i don't have letters on screen, when i power on i have sound and in off, were i should look for it, i post some photos , thanks.