Would you please do a great favor to me and just give me some clues that HOW I should use DT-Ints for handling this issue? for the reference of this below schematic. So I decide to switch to a better PIC chip such as PIC16F877A or some other equal types as well.įor now, it is difficult for me to adapt the ASM file to a program with PicBasicPro language.
On the hand I have checked local markets for this PIC12F1840 it is not available at the moment at local shops, and on the other hand this project only has HEX & ASM files as sources for this mentioned micro controller.Īlso, I am very interested in to use the DT-Ints (Darrel Taylor Instant Interrupt routines) and use LCD, of course to add a keyboard for the purpose of frequency adjustments, battery level monitoring and other facilities and etc. It has a Metal Detector circuit with 12F1840.I have taken a look shortly at the details of this design. I will see if I have anything saved for this and post it if I do. You have to pay for the pre-programmed pic chip but I think you can find the circuit for free. If you have access to PCB Wizard, attached is the circuit I made for the BFO.Įdit: There is a Pic based metal detector called Gold Pic (search the net). Note:You WILL need an Oscope for setting the coil frequency etc.ĭue to the terrible depth detection, I have not persued this project any further with using a Pic, but with someone else having the same interest, I may have to start it back up again. It works but the feedback control is a pain and the depth detection sucks, best I could get was about 2" with a 5" coil in air. I built the circuit from - had good description. meeting of the German Atomic Forum at ACHEMA 1973 ( Uranium enrichment ). The net has several example circuits for BFO and pulse metal detectors. spectra from semiconductor detectors in a semiautomatic system containing. I had the same idea, so started with a non-pic project to learn how it works.