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  1. (*steve*)

    Calculating gyroscope turn regardless of angle

    I expect it would be Zr cos Yr + Xr sin Yr for an axis remaining in the ZX plane, but shifted in the Y axis by Yr.
  2. (*steve*)

    Lead acid battery - how long can it be left discharged?

    Depending on the type of battery, discharge more than 50% may be a bad thing. The best solution to the above problem is the one which leaved the most charge in the battery the longest. In addition, a slower discharge will allow you to get more energy out of the battery.
  3. (*steve*)

    Calculating gyroscope turn regardless of angle

    Your gyros will give you an amount of rotation in the X, Y, and Z axis, If the z axis is vertical (so the axis of rotation is along the Z axis, all you need to do is look at the rotation about the Z axis. If you tilt the axis of rotation (and let's say the tilt is in the 90 degrees in the ZX...
  4. (*steve*)

    Calculating gyroscope turn regardless of angle

    So do what I suggest.
  5. (*steve*)

    Current sensing circuit help

    But also post the circuit diagram.
  6. (*steve*)

    Current sensing circuit help

    Show us the actual circuit you constructed
  7. (*steve*)

    Easiest/cheapest way to prevent a capacitor from over charging??

    How is that relevant to my comment? And why do you start your posts with your name?
  8. (*steve*)

    Calculating gyroscope turn regardless of angle

    Mathematics and coordinate transformation. You need to calculate the initial and final orientation in space, and then determine the amount of rotation about one axis has occurred. If the axis through which you are measuring rotation has shifted (i.e. no longer points in the same direction)...
  9. (*steve*)

    Easiest/cheapest way to prevent a capacitor from over charging??

    If the load demanded from the panel is greater than it can supply, the SMPS will remit to draw more current, making the situation worse. A linear regulator doesn't do that, and a MPPT regulator will only supply the maximum the panel is capable of providing at any one instant. Using an SMPS can...
  10. (*steve*)

    Vintage Schematic Questions

    I've never seen a diode made of silicone.
  11. (*steve*)

    Breadboard Wiring

    Well, all the holes in each row (as you have the breadboard oriented) are connected together. In that case you have wired the battery to the resistor, not the LED and the resistor (both LEDs of the LED and one lead of the resistor are all connected to one lead from the battery. It was hard to...
  12. (*steve*)

    Help

    Yes it has a fault. What happened just before it failed? We're you playing stuff at high volume? Did you just connect some new speakers? Did you have multiple speakers connected in parallel?
  13. (*steve*)

    Breadboard Wiring

    Maybe one LED is the wrong way around. The LED is polarised and must be in the circuit the right way around. One lead is longer than the other, and there will be a side of the LED which is slightly flattened, both of these indicate the anode. The anode needs to be positive. Depending on your...
  14. (*steve*)

    Wiring Batteries?

    If you're very careful you can solder to them. However I prefer to use battery clips and/or battery holders.
  15. (*steve*)

    Current sensing circuit help

    This is an appropriately rated capacitor for 110V mains.
  16. (*steve*)

    Need help with Power Transistor ID.

    Edd has amazing balls (crystal, of course)
  17. (*steve*)

    Disable backlight of LCD monitor

    And you'll still see nothing if you've removed the polarising film(s).
  18. (*steve*)

    Super capacitor phone battery

    Capacitors with liquid electrolytes suffer from drying out, and sometimes just leakage. In some cases a component like this will fail if just left sitting around unused. Elevated temperatures make it worse. The specifications of some capacitors give a lifetime at their rated maximums -- and...
  19. (*steve*)

    Current sensing circuit help

    And I just noticed that you say to using a ceramic capacitor. I'm not sure if any ceramic capacitors are appropriately rated to be connected across the mains (which this one effectively is). You should be using a Y1 or Y2 class metalized film capacitor in this application if you want to be...
  20. (*steve*)

    Current sensing circuit help

    If you are posting while I'm answering, I probably won't see the post until after I reply. No need to remind me, you'll probably be doing that as I reply to the other message.
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