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  1. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    I am posting this reply to my first inquiry for those in the future who are merely browsing may want to know the results without going down through the many threads in detail. Having said that I...
  2. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    Mark,

    I'll address the second remark in this reply. The first time I discovered the problem (and it did occur consistently) I would have to say there is no acceleration or deceleration possible...
  3. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    Hello Mark,

    I have invested some time in running the long signal leads in shielded cable and grounding it and everything I can think of to the earth ground of my 110vAC power cord. The main...
  4. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    Hi Richard,

    This a very interesting strategy and I have added it to my collection of code snippets.

    On this project my approach is to try the hardware methods first since they (like ground...
  5. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    No offense taken.

    Nobody has ever accused ME of being a genius but my tenacity has lead me to many learning opportunities.

    I will try several of the strategies offered by the contributors and...
  6. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    Voila! Photos as promised.

    I have yet to provide the scenery work but first things first- get it operating. Manual operation works as designed.

    The power (0-17vDC) from the speed control can...
  7. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    Heckler,

    I first discovered this thread by looking at a print ready version of the tree.

    My trolley system is at the beginning stages but all the track and overhead is assembled and in good...
  8. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    Thanks Richard.

    This has great potential in my code because as you commented, once I set close the realys to the trolley power all I have to do is loop through the routine that checks for a low...
  9. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    LinkM,

    I appreciate your idea to inline the inductors and naturally shrink-tube saves the day for so many inline solutions like this.

    I did strike upon the idea of soldering the caps to the...
  10. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    Dave,

    As a novice I don't get exposure to best practices so this advice is very welcome. I will copy the info down and study it carefully. It will certainly be implemented in future designs that...
  11. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    Henrik,

    I over thought the issue and had a "brain-fault" when I got to thinking of the output parameters instead of the pin configured as imput. I appreciate your pointing that out and following...
  12. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    Michel,

    At present I'm not so concerned about reed switch bounce (although that may become a later issue) since the jumping to the next set of operations in the PIC program behavior occurs without...
  13. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    LinkM,

    Thanks for the great circuit sketch! I don't have any inductors on hand but if this works well, I would consider making a module of it for future uses of the reed switch as a sensor.

    I...
  14. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    Heckler,

    The reed switches are different ones but I have rigorously tested the ones under the track including the lead wire to the location of the new controller. This was easily done by rolling...
  15. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    I don't know about static buildup because I never have experienced that. It did get me to thinking that since the trolley takes power from an overhead wire and completes the current path to the...
  16. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    Amoque,

    Thanks for your thoughts and empathy from a fellow "enthusiast."

    I have read some related posts that the forum software provided presumably due to the tags I defined. There were also...
  17. Re: Electrical Issue: PIC input false triggering, Signal Noise suspected.

    Henrik,

    I don't have a spec sheet for the reed switch so I can't verify the current capacity but it is rather small (~5mm l. reeds) in glass tube. The pullups are 47k ohm and on the control...
  18. Electrical Issue: PIC input false triggering, Signal Noise suspected.

    I have just completed and tested a controller system of my design to automate trips between two stations and a yard siding on my model (HO scale) trolley line.

    I have used a PIC 16F722 to take...
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