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  1. B

    cake water fountain help

    If you look closely at photo 3 you will see the voltage on the side of the motor as 30VAC 50Hz
  2. B

    Oneshot Timer

    Possible if one uses diodes ..... http://pcbheaven.com/wikipages/555_Theory/?p=1
  3. B

    cake water fountain help

    Photo 1 shows it at 33v/230ma so around 8VA.
  4. B

    Oneshot Timer

    Timer output shown is from an astable not one shot. Changing the charge time versus the discharge time will give you what you need. Take a look at Talking Electronics...plenty of info there. http://www.talkingelectronics.com/te_interactive_index.html
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    wiring up relay with Arduino

    Have no idea what the input output you quoted might be. Your expansion of the first instance has, as far as I can make out expanded into at least 8 applications. These requiring, as far as I can make out , at least 6 Arduino units and several other interface hardware units all from different...
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    12v timed switch query

    Mono stable multivibrator
  7. B

    How to increase amount of Frames per second in a video camera?

    Probably buy a camera which gives 40fps I'd say.
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    wiring up relay with Arduino

    What voltage level AC are you talking about here ?
  9. B

    Winding coils

    No idea what you mean by "holes and similar".
  10. B

    cake water fountain help

    You have answers over in your "double post" ........(help needed please) Chiefs here tend to frown on this.....
  11. B

    Motocycle gear change counter

    All the bikes I've ever had anything to do with have inline gear change up-down. Exception being a 1943 Indian. :) I think your problem will be setting up a switch or sensor mechanism which accurately determines which gear you are in. For one example, if you start the engine/ gear sensor...
  12. B

    Help! Transistor radio converted into amp

    Go and charge up an ignition suppressor cap, one from the old kettering type(one across the points), approx 0.047uF if i remember correctly. See if that livens up your senses.
  13. B

    Motion Detection

    PIR relays will normally give about 10 to 12 metres maximum depending on sensitivity adjustment ( if any available on the unit you select) and on other obstacles which may interfere with the zones. If you need to detect intrusion in a particular path, one could use an IR beam across the path...
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    Diode bridge

    As Minder said, that will give you full speed. Then again, if the motor is a series type with wound field windings, you could just run it off AC. Still the query about where you will get your supply.
  15. B

    12 volt DC lamp flasher.

    All I can say is something's missing from your circuit then.
  16. B

    12 volt DC lamp flasher.

    You show the switch as oil pressure. Oil pressure cannot show level. Well, unless you run out of oil, then it will be assumed the level is low as the switch will activate on loss of pressure. ;)
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    Diode bridge

    Read it again Dave....o_O Rick, That would need a fairly hefty diode bridge. 1.25hp = approx 932watts = load current somewhere around 10 amp so possibly stud type diodes and allowance would have to be made for starting current which can be up to 6 times more, depends on many things...
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    12 volt DC lamp flasher.

    Sorry but I can't see your circuit working at all. Am I to assume correctly that what you have written in#12 is what you want, and the circuit you provided is how you think it would work??? You quote needing 2 states of operation. 1 from oil pressure and 1 from oil level but you only have an...
  19. B

    Microcontroller stops comunicating serially after motor connection

    A circuit of what you have may be helpful.
  20. B

    12 volt DC lamp flasher.

    link does not work. Wondering why you don't just use a flashing LED ? Supply from ignition switch and parallel to your existing oil warning lamp. Basically, oil pressure low switch turns on the LED.
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