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FelezJoo PI metal detector

FelezJoo Discrimination Fix

After a few months of research for the problems of discrimination and “Coil Error” in the Felezjoo PI, I finally find a temporary solution that can make the device more useful. this problem is often encountered when the components used do not match the detailed description given by the developer of FelezJoo. Since the source code is not available, it …

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FelezJoo PI Download files

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FelezJoo PI Programming

In this article, we will go over how to program an AVR chip for FelezJoo metal detector using a USBASP with a 10-pin cable. A USBASP is a cheap device that allows for writing programs to AVR chips, such as an ATmega128 or ATmega328. Therefore, we can write the Detector program to ATmega328p and have this program written into the …

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FelezJoo PI System settings

For enter in Felezjoo menu, press OK to enter in the System settings. Using the up and down keys, you can switch between options. And using the left and right keys, you can change the desired options. Frequency : Range= 35 to 999Hz: This setting determines the frequency pulse is the pulse detector. Those who have worked with a variety …

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FelezJoo PI assembly

If you have done the exact PCB and prepared the necessary parts, you can  start building your FelezJoo PI by putting parts from  smallest  to biggest

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FelezJoo Partlist

Capacitors ——————————————————————————————– C1……………………….  10uF-16v electrolytic C2,  C3 ……………………….18pF ceramic C4, C5, C7, C8, C9, C14 ……………………..….100nF (or Code 104) ceramic C18,  C20,  C21,  C23,  C26 ……………………….100nF (or Code 104) ceramic C6,  C12 ……………………….100uF-16v (or Code 107) Tantalum C10 ……………………….5pF (or 4.7 pF) ceramic-high quality C11……………………….  2.2uF-16v (or Code 225) Tantalum C13,  C17,  C25 ……………………….470uF-16v electrolytic C15,  C16 ……………………….4700uF-16v electrolytic C19, …

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