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  1. CDRIVE

    Help with sensing a stopped sprocket

    Thanks. I assume that's what Craig is using also? Chris
  2. CDRIVE

    Help with sensing a stopped sprocket

    I know I asked this before and it may have been posted. If so I missed it. Anyway, what's the PN of the prox sensor? Chris
  3. CDRIVE

    Help with sensing a stopped sprocket

    Craig, after viewing that (WOW!) video I can safely say that my old Lee "hand press" vs that Dillon is like comparing an old Spring Pole Lathe with a modern CNC Lathe. Two totally different animals. You should send that video to Washington so they can see that you're doing your part in bringing...
  4. CDRIVE

    Help with sensing a stopped sprocket

    Reloading is the only affordable way to go for serious shooters. No need to mask reloading here. It's been many years but I reloaded handgun ammo when I was a competition shooter. I made it up to Expert Master (NRA .45 ACP Match) when the area became too populated for outdoor gun ranges. It...
  5. CDRIVE

    Help with sensing a stopped sprocket

    It would appear that you have all you need for a representative simulation. I like this thread because it fills a specific realistic control application. It beats the hell out of pie in the sky topics by Greenies wanting to go off grid by harvesting radio waves! :p Good luck. Chris
  6. CDRIVE

    Help with sensing a stopped sprocket

    You're talking to one of those Qtips! Quite frankly, the texting while driving (Smart Phone Zombie Apocalypse) generation has kicked Qtips out of first place in the "WTF!?" category. Chris BTW, if you think you got what it takes to take this Qtip's license, I'll send you my address. I'll...
  7. CDRIVE

    Help with sensing a stopped sprocket

    No need for the relay. That input is labeled Digital Input (DI1), so no reason to expect HV or high current. See page9. The PDF indicates a shielded cable for all digital inputs. This in itself would tend to indicate that they're sensitive and likely very low current...
  8. CDRIVE

    Help with sensing a stopped sprocket

    While reading this exchange I couldn't help but ponder why not have Minder burn the chip for you since he's writing the program anyway? .... I love volunteering ... others! :D After further consideration I realized that that's not a good idea at all, since Minder can't make live tests at his...
  9. CDRIVE

    GPS NMEA, Failover Circuit upgrade attempt.

    I forgot to mention this but before abandoning the MAX chips make sure you have all unused inputs tied low or high as per manufacturer's spec. Or have you already done that and I've simply forgotten? ... It is a very long thread. Chris
  10. CDRIVE

    GPS NMEA, Failover Circuit upgrade attempt.

    You don't need one when only receiving data to a Picaxe. However if you need to transmit RS232 level data you may want to check these Intersil chips.. Chris
  11. CDRIVE

    Help with sensing a stopped sprocket

    I thought I remembered another thread that was similar to yours, counting pulses. So I opened my Picaxe files and found a little project that has an EP link commented in the code. Here's the topic. https://www.electronicspoint.com/threads/pic-12f675-pulse-counting.278504/ Scroll down until you...
  12. CDRIVE

    Help with sensing a stopped sprocket

    Craig, just for the record I want to make it clear that I'm not pissing in Minder's pool. He's put time and knowledge into this topic. I gave you that link because I get the impression that this is not your first electronics control project and it won't be your last. You need this project done...
  13. CDRIVE

    Help with sensing a stopped sprocket

    Craig, you mentioned that you've played with Arduinos. Have you ever been here? http://www.picaxe.com/ I love them! Picaxe Basic is absolutely painless to learn. Programming the chips is not much more than clicking a button. They also don't need a programmer to burn the chip. It can be done...
  14. CDRIVE

    Help with sensing a stopped sprocket

    Yes, that's the final programming step. Consider yourself blessed that you won't have to deal with writing the code. "C" or ASM ain't fun and neither is the learning the MAPLAB programming editor. Especially since your bottom line is to machine parts and earn money. ;) Chris
  15. CDRIVE

    Help with sensing a stopped sprocket

    Because we often have to deal with people that refuse to answer our questions or are incapable of following instructions; or both. We also get quite a few young nubes that think they have plans for a new invention. They come here with next to no skills at all seeking help but are evasive with...
  16. CDRIVE

    GPS NMEA, Failover Circuit upgrade attempt.

    BTW, you're not alone. I Googled "Max232 Overheating" and you have lots of company out there! Chris
  17. CDRIVE

    Help with sensing a stopped sprocket

    Craig, when it comes to the new (recipient) member category you may win the "Most receptive" award. ... That is if we had one. ;) I'm sure Minder will agree that you're a rare pleasure here! Chris
  18. CDRIVE

    Capacitor charging

    I don't think anyone is arguing with your results but it can't be wired as your schematic shows. Chris
  19. CDRIVE

    GPS NMEA, Failover Circuit upgrade attempt.

    Scenario: Instructor assigns a class project to design a circuit with topography that would represent unsuitability for the following: (1 ) High Frequency (2) Fast Rise and Fall Times (3) High Input Impedance Amplifier I would simply hand in a just about any circuit of that description on a...
  20. CDRIVE

    Capacitor charging

    I don't understand how that circuit could work as drawn. There's no DC (Collector / Emitter) current path. There isn't a current path for the transformer primary coil either. Chris
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