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 is necessary to find a hardware solution.
The detection of metals in this type of detector is based on the calculation of the delay caused by the metals around the coil. This delay is the origin of these problems of FelezJoo. Resistance R11 (390 Ohm) can be adjusted directly to change this delay in an RL circuit.
See also:
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- IDX Pro PCBs
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- PIM-2 Pulse assembly
- PIM-2 Pulse PCBs
- PIM-2 Pulse Partlist
- PIM-2 Pulse schematic
- PIM-2 Pulse Metal Detector
- KROT2 Menu Settings
- KROT2 Partlist Z80
- KROT2 Partlist Z79
- KROT2 Download files
- KROT2 PI PCB
- KROT2 PI Schematic
- Clone PI-AVR Menu
- Clone PI-AVR assembling
- Clone PI-AVR Programming
- Clone PI-AVR PCBs
- Clone PI-AVR Schematic
- Clone PI-AVR Parts List
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- PI-W Partlist
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- FelezJoo PI Download files
- FelezJoo PI Ground Test
- FelezJoo PI Air Test
- FelezJoo PI Programming
- FelezJoo PI System settings
- FelezJoo PI assembly
- FelezJoo Partlist
- FelezJoo PCB
- FelezJoo Schematic
- IDX Pro PI Metal Detector
- KROT2 PI Metal Detector
- Clone PI-AVR Metal Detector
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- Pulse Induction Metal Detectors
The Pot R11 5K 2W can be tuned to find the optimal value that needed to obtain a good super values (A B C).
This Pot 5K can be replaced by a fix resistor after finding the optimal value.
The next video show the modified detector with the Pot 5K and the Felezjoo discrimination function.
