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    Reset button for relay switch

    Try this..... most relays will run 24/7
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    Zener Diode - I feel terrible!

    :rolleyes:That's the schematics number.... Not the component part number. Look on the body of the diode itself.
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    Reset button for relay switch

    While your relay operation works, it is however back-to-front or commonly known as negative logic. Operation in the normal world is.... close (power up) the relay tomake the pump run. Otherwise you'll just get yourself all confused.
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    Reset button for relay switch

    Look up standard stop start circuit on Google. .....easy
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    Reset button for relay switch

    Easy......use a push button as a start with one of your relay contacts(or an aux relay) as a hold-in across the start button. Your float switch then becomes a series stop switch. The latter would of course have to be normally closed during normal operation.
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    EPROMS and transistors

    Tci and eprom rarely go together given the former is old technology. Cdi is another kettle of fish however and only suggestion to your query would be to study the operation of the elements you ask about. When you no longer need to ask about those elements then you might be ready to move onto...
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    Old expired '83 brain needs rework

    What makes you think the original ignition is failing?........oh, and '83 ain't old.....:)
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    Retro-fitting elevator display

    Microcontrollers do not handle 24v. You will have to use resistor dividers to ensure the voltage never exceeds the 5 v or 3.3v or whatever each micro is rated for.
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    Parrot MKi 9200 remote control Help Please

    The A and B signals are quadrature encoder signals spaced 90 degrees apart to determine direction. If you Google that , say on Wikki, you will find more explanation.
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    KJD series switches.

    If M1-8 fail to start and I get a 12vdc signal several things will happen. This can never happen.( as drawn)
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    Uploading.........

    also have correct board selected....
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    LED Ohm Resistor Question

    You will not drive 60 leds in one series circuit. Each LED (depending on type) will have a certain voltage requirement so you will need an amount of series/parallel circuits. Best to use driver modules off Ebay. Cheap and effective.
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    KJD series switches.

    Maybe I read it wrong but wondering how you expect a time delay to operate after the power shuts down to your power supply units.
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    need some help finding something

    Had a peek and it is a 5v supply and not just a socket.......again have to ask why this type of connector if you are concerned with current rating.
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    need some help finding something

    As far as I could make out the sockets are just that.....could be mistaken though ....cannot get into Ebay to look at the moment.
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    Car Dashcam Battery Replacement

    Forget cap....fit new battery
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    Name this connector

    Looks a bit like the old parallel port lpt connector.
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    need some help finding something

    Just wondering why you need high current capability from a USB outlet.? If you don't "trust" the rating then why not go to some other connector type?
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    need some help finding something

    You mean something like this then from China....????? http://www.ebay.com.au/itm/12V-Car-Boat-Accessory-Socket-Panel-4-USB-Charger-Power-Adapter-Outlet-Sarable-/400923880377?hash=item5d58ecebb9:g:S4MAAOSwZd1VXb6J
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    Low voltage output.

    I think you will have to show the board and essentially where you obtained the measurements quoted above. Latest pic is a microprocessor.
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