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  1. Ed Sowell

    Rain gauge resetter

    Did get the pins in. The contacts are actually formed of spring wire. Hope they don't loosen as the springs relax when the batteries are removed. http://efsowell.us/Photos/Projects/RainGauge/WithJumperPins.jpg
  2. Ed Sowell

    Rain gauge resetter

    This is the part that looks tricky to me. Where exactly do you poke the pins? Between the metal and the plastic? Looks like a tight fit. Might give it a try.
  3. Ed Sowell

    Rain gauge resetter

    Here's the wanted photo: http://www.efsowell.us/Photos/Projects/RainGauge/OregonSciRainGuage.jpg Looks like it wouldn't be easy to attach a jumper battery. I'm now thinking it shouldn't be too hard to us the existing RF transmitter in the collector. Just use a timer IC or something to emulate...
  4. Ed Sowell

    Rain gauge resetter

    I have an Oregon Scientific wireless rain gauge. An irritating "feature" is battery replacement causes the history to be cleared. If that happens during the rainy season I have to write down the current total and manually add it to all future readings. It would be nice to have a little box with...
  5. Ed Sowell

    Extending output cable of auto battery charger/maintainer

    The Schumacher literature says it is microprocessor controlled to optimize charging rate. Doesn't use the term "smart charger."
  6. Ed Sowell

    Extending output cable of auto battery charger/maintainer

    Thanks! Martin, I'd rather add to or replace the output cables than relocate the charger and drag an extension cord. Blujets, I think it could be a smart charger but not sure. Bertus, most usage would not be recharging a dead battery so it wouldn't often be at 50 amps. And I expect under that...
  7. Ed Sowell

    Extending output cable of auto battery charger/maintainer

    I have a Schumacher SE-5212A-CA battery charger/maintainer with 14AWG DC output cable. To reach the battery while in the car from the charger on a shelf on the adjacent wall, I need to extend the cable about 3 feet. I'd either splice or replace with a longer cable. I'm concerned that this might...
  8. Ed Sowell

    Proximity sensor for parking

    This appeals to me. I have a lot of programming experience, including 30 years of teaching Engineering & CS. Also, I happen to have an Arduino kit that was given to me several years ago. However, I already spend about 10-20 hours a week programming, mostly in Java. Don't think I have time to...
  9. Ed Sowell

    Proximity sensor for parking

    I've had one tennis ball set to touch the windscreen (British term!) for a long time. I agree that if that ball were also properly positioned transversally, and a second ball hung the same distance from the right garage wall but closer to the garage entrance, it would work. However, there's no...
  10. Ed Sowell

    Proximity sensor for parking

    But they should also work looking at the side of the car, right? Yes. The door frame is about 3 feet narrower than the garage, so it juts out about 18" on each side. I keep the inevitable clutter (that lines everyone's garage) less than that. Only my tool chest up at the front, but the tennis...
  11. Ed Sowell

    Proximity sensor for parking

    perhaps 4" I'll look into that In some sense that's true. However, there's a difference in this situation. E.g., some of the devices on the market project a beam tha the driver watches to see when it reaches a spot on the dash or something. I've used that for decades for the front. If on...
  12. Ed Sowell

    Proximity sensor for parking

    I should have done so first, but I just searched YouTube and found several nice Videos. Seems very simple. Might give it a go. Any tips would be appreciated.
  13. Ed Sowell

    Proximity sensor for parking

    I have to park my treasured 1976 Jaguar XJ-S as close as possible to the right side of the garage without risk of scraping the car while passing through the door. There are a lot of garage parking sensors, but it seems like they are conceived to keep the car from hitting the wall in front of the...
  14. Ed Sowell

    DVR power supply testing

    Oops. This fan photo in in my thread "lorex-dvr-what-is-this", where this not is also posted.
  15. Ed Sowell

    DVR power supply testing

    I want to report success! Here's a summary, based on what my volunteer circuit guru told me: The original problems were identified as a visibly blown 0.56 Ohm resistor at R355. Continuing though the circuit, the MOSFET Transistor at Q351 (W9NK90Z) was bad. These tested bad from the beginning...
  16. Ed Sowell

    Lorex DVR: What is this?

    I want to report success! Here's a summary, based on what my volunteer circuit guru told me: The original problems were identified as a visibly blown 0.56 Ohm resistor at R355. Continuing though the circuit, the MOSFET Transistor at Q351 (W9NK90Z) was bad. These tested bad from the beginning...
  17. Ed Sowell

    DVR power supply testing

    here it is
  18. Ed Sowell

    DVR power supply testing

    A friend with more experience in this stuff has offered to take a look at the PS for me. I've asked him to send me a photo of the burned out resistor when he gets it off the board.
  19. Ed Sowell

    DVR power supply testing

    I've done a few board component replacements over the years so I'm pretty sure I can do the resistor at least. Oh, and I've watched some YouTubes on capacitor replacement so I close to being certified, right?:) No lightning. However, this all began with a failed heatsink fan on the DVR...
  20. Ed Sowell

    DVR power supply testing

    It appears to connect to the black rectangular transistor mounted on the adjacent aluminum heatsink. I'll do that, assuming I can identify it. It looks like the markings are partially obliterated. I have a good electronics store nearby that might be able to help.
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