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ebourlet

I need to change switch point on pancam

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I have the need to switch a glow plug on at anything below about 1/3rd throttle. I thought the Pan Cam code may work but using the AUX output it chages state at a bit too high of throttle setting. What I would like to do is use a PIC to drive something along the lines of an IRFZ42 to turn on a glow plug at low throttle to improve idle. I have built one of these using an MC14013 but was hoping to find a cleaner way to do it. ANy ideas? Thanks.

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After reading my original post I can see where I may have not worded it right. I have no intent to violate any use agreenments of MR. RC-CAMS codes. I have used your code to build a camera switch and would never want to modify any of your code . I apreciate you sharing with all of us and would never want to jepodize that. Thanks for all you work.

Edited by ebourlet

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I don't have anything in my bag of tricks for a user-programmable switch threshold. One of these days I will create a project that supports that (it has been on the to-do list for awhile). Perhaps there is a RC-CAM'er out there that has a compatible project that that they can share?

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ebourlet, I'd be interested in discussing your project, can you please email me and we'll see what we can come up with.

Thanks,

Bill

P.S. Can you point me to a commercial low-throttle glow driver so I can get an idea of what they are capable of?

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I don't have anything in my bag of tricks for a user-programmable switch threshold. One of these days I will create a project that supports that (it has been on the to-do list for awhile). Perhaps there is a RC-CAM'er out there that has a compatible project that that they can share?

Yep....

At least I have some code that I've written to store points into the PIC's EEPROM by the means of a pushswitch. Written in assembly though. I use it to store the end points in my own PanCam-like device, to program the threshold on my electronic ignition switch and many more.

Indeed the ignition switch could be transformed to a glow switch with a few code lines. Even with variable intensity if you'd like to :P

The hardware already includes a 100A MOSFET that can be used to drive anything.

If you'd like the design files just tell. I've made it especially for my new 2.3m Extra :D

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Bill, here is a link to the one I use now. It is not PIC based but just a simple dual flipflop based design . Glow driver switch

Thanks for all the interest in my question. While I have been a communications technician for 20 years+ I am a real novice at PIC stuff. I did make a PC board and built a simple JDM style PIC programmer. I have no idea how to do anything at this point other that burn someone elses HEX code into them. I use IC-PROG. I would love to learn how to take an assembly program and get it into the HEX. I asume I need some kind of compiler program to do that. This may not be the place to ask but ,the programmer I built just has a DIP socket this works fine for a full size DIP but I got some free sample SMD PIC chips and would like to know if there is an adapter to clamp an SMD that I can then plug into my DIP socket .Any help or pointers is apreciated. Thanks.

Edited by ebourlet

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I would love to learn how to take an assembly program and get it into the HEX. I asume I need some kind of compiler program to do that.

You can get a free assembler and complete IDE from Microchip. Here is some PIC r/c asm code I have found.

N9GEZ

Edited by MikeDD

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