Announcement

Collapse
No announcement yet.

PICKINI V4 - an easy to build, self adjusting PI detector

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Hi Marty,

    sure you can use it for Inland treasure hunting.

    Comment


    • Thanks Bernte one,,,,,much appreciated. Which is the easiest way to program the pic chip? I have Mplab but not sure how to use it. Thanks. Marty

      Comment


      • Originally posted by MartyJ1963 View Post
        Which is the easiest way to program the pic chip? I have Mplab but not sure how to use it. Thanks. Marty
        Either MPLAB or the PICKit utility.

        With both you load the hex file and go to programming mode.

        Lots of instructions and tutorials on the web to do this.

        Comment


        • Thanks Waltr,,,appreciate it,,,,I found a few tutorials to be going on with,,,great to learn new stuff,,lol. Thanks. Marty

          Comment


          • Which is the easiest way to program the pic chip? I have Mplab but not sure how to use it.
            Its very easy to do if you bought a ICSP for your chip if you didnt then you will have to use something else like solder-less breadboard, only needs 5 wires

            I put all the instructions on a thread here somewhere long time ago, but this is roughly the process
            I use MPLAB 8.76, its old but does all the chips I play with
            plug in chip to ICSP,
            open program
            select chip
            (sometimes the program will talk to pickit to update drivers if you change chips)
            select programer
            open programmer options and click power chip from pickit
            File, import hex
            You may get a bunch of warnings about make sure you have the right chip for 5 volts programming during the process
            burn chip
            Click image for larger version

Name:	Pic_icsp-8pin.jpg
Views:	1
Size:	32.8 KB
ID:	351513

            Comment


            • Hi Bernard...
              What happened if Pulse Width changed from 100 uS to 50 uS ?

              Comment


              • During the time that the Irf740 is conducting, the current through the coil is increasing. If you decrease the pulse width, the max current reached will be less than at the end of a wider pulse. The overall battery supply current will also decrease. So will your detection depth.

                Comment


                • Thanks F117,
                  I am asking this because I want to be able to detect gold that is smaller than the standard capabilities of this tool. Is it possible to make changes to the program for that?
                  Although we know that later detection distance will definitely decrease.

                  Comment


                  • Are you saying that the pulse width will influence detection of small gold ?
                    Or do you ,mean the voltage sample delay that is adjustable in a classic voltage sampling PI.
                    The Pickini detector is a so called temporal sampling detector, it measures the pulse width of the flyback pulse.
                    Did you try it already on small gold?
                    I think the most important thing in that case is to have a really fast coil ( low capacitance)

                    Comment


                    • I do think like that. Because as it says on the Mirage Detector that the small pulse delay and pulse width values will place us in the gold zone. But the small coil conductivity must also be very influential for it.
                      I have not tried it yet, I am very interested to immediately assemble this Pickini. Hope you are willing to help me to reach the gold zone.
                      thank you

                      Comment


                      • @6666,,,,Thanks for the explanation,,,I'm still struggling with it,,lol,,,I got a pickit3 clone that came with a programmer seat but for the life of me, I cant figure out the jumpers,,,it says for 8/14/18 and 20 pin chips the jumpers are J1:2/J2,J3,J4,J5,J6,J7:2-3,,,,,,,,I cant work out whether j2,j3,j4,j5,j6 are open or the same as j7, 2-3,,,,I'm lost. And I've tried the chip in several positions and I'm getting nowhere fast,,lol. HELP!!!! Can anyone explain an easy way (Maybe pictorial/Diagram) to do this please?,,,I had less trouble programming my Felezjoo chip, only took 2 minutes,,,lol. Thanks in advance. Marty

                        Comment


                        • Originally posted by MartyJ1963 View Post
                          @6666,,,,Thanks for the explanation,,,I'm still struggling with it,,lol,,,I got a pickit3 clone that came with a programmer seat but for the life of me, I cant figure out the jumpers,,,it says for 8/14/18 and 20 pin chips the jumpers are J1:2/J2,J3,J4,J5,J6,J7:2-3,,,,,,,,I cant work out whether j2,j3,j4,j5,j6 are open or the same as j7, 2-3,,,,I'm lost. And I've tried the chip in several positions and I'm getting nowhere fast,,lol. HELP!!!! Can anyone explain an easy way (Maybe pictorial/Diagram) to do this please?,,,I had less trouble programming my Felezjoo chip, only took 2 minutes,,,lol. Thanks in advance. Marty
                          Ok this is difficult by remote control
                          not knowing what ICSP (programmer) you have, usually you insert the jumpers for the specified pic
                          you need to supply a lot more info on your setup to even guess whats wrong,
                          I bought a cloned pickit 3 it would not work with my bench top PC, but worked fine with my laptop
                          please explain your setup.
                          From my rough list of instructions where are you up to ?

                          Comment


                          • Hiya 6666, thanks for the reply. I bought a pickit 3 clone kit off ebay. I downloaded mplab 8.92. It took ages for mplab to finally connect to the pickit 3 but then it said it couldn't find the target board,,,when I was setting the voltage to the board it just kept saying not connected to target. When I used the pickit 3 standalone software it kept saying 'Not responding' and sort of crashing after pressing one or 2 buttons, so I had to keep unplugging then starting again. Also I don't know if I've got the chip in the right orientation or in the right slots,,,though I've followed the diagram on the back of the target board I'm still having no success.
                            Attached Files

                            Comment


                            • http://www.geotech1.com/forums/showt...749#post222749
                              + some explanations in the first 5-6 pages of the Pickini4 thread.
                              I also use a Pickit3, but there are no jumpers.
                              To program the PIC16F1824, only the top 8 pins are needed, so I keep using the same 8 pin IC socket that I used for smaller 8 pin devices.

                              Click image for larger version

Name:	PICkit3_MCU_Programmer_debuger_pinout01.jpg
Views:	1
Size:	70.6 KB
ID:	351550

                              When I used the pickit 3 standalone software
                              I always use MPLAB as an interface to the programmer

                              Comment


                              • Thanks F117,,,,I feel really stupid but I don't know what you mean by the top 8 pins? It is the 14 pin pic16f1824 I bought. Is there a pcb/device I could make to place this chip on/in to program it? Or a full diagram that I could follow on how to do it? It's just gone 7.15am here and I've been trying to get this to work for the last 16 hours and have had no luck,,,lol. Sorry for looking stupid,,,thanks again for the help,,,,I'm really looking forward to completing your detector design and think it's great what you've done. Thanks again. Marty

                                Comment

                                Working...
                                X