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  1. kellys_eye

    Bosch GLI18V VariLED

    Looks like it's a switching regulator device to me.
  2. kellys_eye

    Multi power supplies housing

    Get a +/- 15V supply rated at around 2A Use the 78** and 79** series regulators to drop (sequentially) the 15V to 12, 9, 6, 5 whatever..... i.e. the output of the 15V rail feeds the 12V regulator that feed the 9V regulator that feed the 5V regulator. The 78-series are for the positive rail...
  3. kellys_eye

    RF Transmitter/Receiver Without Arduino?

    Here's an advert for FIVE Arduino (mini's) that work out at $3 each..... If you want simple RF on/off, buy a wireless doorbell system.
  4. kellys_eye

    LCD for mp4 player module ?

    You want an LCD monitor that accepts a video signal of the format delivered by that connection. I can only guess that its a 'basic video' (i.e. composite) given the two-wire connection. Any video display with a YELLOW RCA socket input will probably work - or get a SCART connector with a yellow...
  5. kellys_eye

    Calculating gyroscope turn regardless of angle

    Isn't the 'cage' of the gyroscope fixed to the turntable? i.e. the turntable itself is one of the axis? In standard gyroscopes (navigational) this is (I think) the case.....
  6. kellys_eye

    Multi power supplies housing

    Not for the +/- 15V.
  7. kellys_eye

    Output voltage is higher than it should be

    The IC contains the main switching device (MOSFET) too and given the fault condition seems to be overloaded hence the darkening (I reckon). May be useful to change all the electrolytic capacitors too.
  8. kellys_eye

    Transformer for Camera

    A 'cam' is an irregularly shaped disk usually used to operate movement. This ridiculous shortening of CAMERA to cam is misleading hence my request for further information. As it stands you will need a 5V 2A power pack. Anything other than 5V will likely damage that camERA. Why would you...
  9. kellys_eye

    Output voltage is higher than it should be

    The regulating IC has a reference (feedback) voltage on pin 4 and this will be derived from ONE of the stabilised outputs. You will have to trace the circuitry back from pin4 to establish which supply line is being used as the feedback signal. It feeds the opto-coupler. Check ALL the supply...
  10. kellys_eye

    Where to find the right led counter?

    No, and I don't think you'll find one off-the-shelf that does. You'll either have to modify the module or design one from scratch.
  11. kellys_eye

    Transformer for Camera

    Make/model/link to item? The 5V seems 'suspicious' - does it have any controlling electronics inside?
  12. kellys_eye

    Solar Drone

    The keep the solar cell on the ground too......
  13. kellys_eye

    Where to find the right led counter?

    https://www.ebay.co.uk/itm/4-Digit-LED-Digital-Display-Counter-Panel-Meter-0-9999-Up-Down-Totalizer/231787885009?hash=item35f7a271d1:g:RGUAAOSwZ1lWcPFQ Blank off or remove two digits...
  14. kellys_eye

    Electricity Consumption for Ceiling Fan?

    Find the one you want online and the specification will state such. As a guide ISTR they are around 30-100W depending on the blade size. Some have light fittings and/or heaters.
  15. kellys_eye

    How can I test a xlr charging port

    The green wire DOES communicate the charging requirement but it does so simply by being tied to ground (I'm assuming 'ground' i.e negative but it could equally tie the wire to 'positive'). Tying to ground is the usual method though. Your charger plug will/should have the corresponding 'pin 3'...
  16. kellys_eye

    Solar Drone

    You'll be lucky to find a converter that will take a 0.5V input and convert it to a charging voltage - you'll need at least a eight(?) in series to get a decent voltage that'll work. @(*steve*) still fantasy (for everyone else). and they add this classic line... I think not.
  17. kellys_eye

    RV power converter...?

    It's an inverter. Use it as an inverter.
  18. kellys_eye

    How can I test a xlr charging port

    Dunno??? I did say the schematic 'may' be correct..... however if you measure at the back of the XLR and measure where the green/yellow goes (positive or negative?) you should then trace it back to the main board connector and try to show a picture of that area of the circuit board..... I'm...
  19. kellys_eye

    Solar Drone

    To get a solar panel with sufficient output to charge the battery/run the drone would make it so heavy it would never leave the ground!
  20. kellys_eye

    How can I test a xlr charging port

    That information would have been useful a few pages ago..... Despite the scooter being and S3 version I suspect they use the same controller throughout the range therefore the schematic for the SE is likely to be the same: assuming this IS the case......... You can see that the charger...
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