Recent content by lbenson

  1. lbenson

    Serin Serout issue on 18M2

    I would always try to make communications between chips work with wires before trying RF--make sure you connect 0V between the two chips.
  2. lbenson

    Servo Control using PS2 style joysticks

    I think you'd do best to start your own thread for this project.
  3. lbenson

    Servo Control using PS2 style joysticks

    Looks good. Onward and upward.
  4. lbenson

    Servo Control using PS2 style joysticks

    Gramps--if you want to control 2 (or more) servos using pots, I'd recommend that you go through Erco's code line by line. In the DO ... LOOP block of code, there are only 6 non-PAUSE statements. Write down a narrative of what each line does. The only non-self-explanatory (with the help of...
  5. lbenson

    Servo Control using PS2 style joysticks

    There might be more to the program, but because erco doesn't use symbols for variables, pin numbers, or magic numbers (constants), that code passes syntax and I suspect there is every reason to believe that it will do what he says it will do--read 2 pots and drive 2 servos. But note that the...
  6. lbenson

    Servo Control using PS2 style joysticks

    It's right beneath his text that you quoted.
  7. lbenson

    Servo Control using PS2 style joysticks

    Exactly what is it you are asking for?
  8. lbenson

    Test circuit for MD20A with feedback pot

    If both pots are dithering by one, then I would expect that you would need a deadzone of 2, since a diff of 0 could become a diff of 2 if one pot dithered in on direction and the other in the opposite direction. Agree with Alan that you should determine by testing the smallest pwm value which...
  9. lbenson

    Off Topic (Sort of): 12V Battery backup for house systems

    What would you recommend? I expect about 15 feet between relays (in basement) and picaxe (floor above). Was going to use 6-core 24AWG telephone wire but could use CAT-6. The motors themselves will be 6-20 feet from the relays.
  10. lbenson

    Off Topic (Sort of): 12V Battery backup for house systems

    Papaof2--I won't be running any mains-powered saws (or other tools) off of the inverter, LOL (if I had to cut a board for some reason, I have a battery powered circular saw which could cut (gently) maybe a dozen 2x6s before I needed to swap in the second battery (proven yesterday (and also...
  11. lbenson

    Off Topic (Sort of): 12V Battery backup for house systems

    Thanks for letting me know of your experience, but the ones I tested round-robin fashion worked fine for switching a 300W work light and an 800W electric heater ( ok, resistive loads ). I'll test further with my river water pump, now pulled for the winter.
  12. lbenson

    Off Topic (Sort of): 12V Battery backup for house systems

    Just my name for the two devices to which all my monitoring devices sent duplicate TCP messages. Both run the Openwrt linux operating system for small devices. One is a Seagate Dockstar (very powerful, long out of production--I have 6 of them) and the other an ancient ASUS wl-500gPv2 router...
  13. lbenson

    Picaxe 08m2 in "low power-mode" ;-)

    Those 16 LED "48 watt" units are good, bright lights, but I'm finding that I like these 20W -- https://www.aliexpress.com/item/33016513117.html -- or 10W -- https://www.aliexpress.com/item/32804493755.html -- ones even better, especially in conjunction with this dimmer...
  14. lbenson

    Off Topic (Sort of): 12V Battery backup for house systems

    Eng460--Thanks very much for the thoughts and explanations. I had not previously considered that in the round-robin scheme I'm proposing, once something has gotten through its start-up surge and is running normally, I can allow something else to start up, assuming sufficient capacity (which I...
  15. lbenson

    Off Topic (Sort of): 12V Battery backup for house systems

    Flenser--thanks for the link. I've seen a number of references to "Battery University", but have never followed the links. Looks very interesting. And you're right about the trade-offs--availability of sufficient capacity when needed is more important than life of the batteries (within reason)...
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