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

[freso]

Hi my friend its not the battery what cause the problem try to use 10 ohm 4 watts and higher resistor in series with the coil

[basellafe]

I want to ask

There is continuous uninterrupted sound
When I branch coil
What is the problem
Is coil or fuse
Unmodified, but when pressed ok.coil 25 cm .360uh
1.2 r
fil 0.7 mm

[basellafe]

thanks jladre for reply My coil is unshield. but i have programmed atmega with high fuse with D1 could this what cuese the problem or there any capacters have to change or low pattery my battery is15v

[jladre]

Do not use a shielded coil and do not attach to the ground the cable shield.

[basellafe]

Its work freso but i have another problem so the device is work with error coil as u know if iconnect acoil with 380 uf no thing happen if i get device to off and oppen the device will not open if i dissconnect acoil the device open normaly so how can i slove this problem

[freso]

Thanks freso i will give a try

Dont forget to tell me when you succed ... Good luck

[basellafe]

Thanks freso i will give a try

[freso]

what is the best program can change efuse and work with arduino

If you are skilled with electronics you can turn an arduino into usbasp and burn fuses its easy so take a look here: http://roboticshelper.blogspot.com/2...ammer.html?m=1

[freso]

http://roboticshelper.blogspot.com/2012/09/arduino-as-usb-asp-programmer.html?m=1

[ripsdevala]

But still.... In common ground it cant be use, you rather choose with lower deep but silent or noisy with good deep, and this 2 option is bad. Maybe this md is good on the beach , will try it when have a time

[jladre]

Seems like yo fiber glass your coil which will kill it.

[ripsdevala]

Good day all,
I try this md on clay ground terain today, its very stable no ringing like on common soil, above common soil you should set it to adapt the ground and swing the coil up and down from the ground to make it silent. The disc is working ok, but need to close enough to get working. Its love hot rocks and wet brick to.
Result: nails, nails, nails, iron string, nut, bolt, snack wrapper, door knob.

[basellafe]

thanks samii for reply do u mean that if leave fuses to orgnal atmega328 and load hex file it will work with narmal setting or slow but it will work??

[samii]

Hello
you can upload hex by this program by arduino but can not write fuse. felezjoo working without fuse.But some people wrote it is slow etc.

http://rlangoy.github.io/Arduino-Uno-Uploader-Tool/

[basellafe]

what is the best program can change efuse and work with arduino