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  1. donkey

    Noob needs help building a circuit board

    http://lmgtfy.com/?q=18650+battery+charger+schematic
  2. donkey

    Need some advice my Li ion powered, pwm dimmed led light circuit please!!

    so many things.... where to start... number 1 and foremost. Welcome young adventurer your time here will be most wisely used ok lets move onto your design. I understand you want to make a 12vault LED strip with in built charger. I understand you have an idea.... of sorts but now I need to...
  3. donkey

    Inverter Theory

    so I get the whole solar panel charges battery. battery powers inverter thing. so lets say I have an 8kw system (using a big number for a reason), I get a 6kw inverter. (want extra 2kw to charge batteries, charge controller to suit this model is there for this example) so I KNOW that you can get...
  4. donkey

    What are the components required for a paper circuit for transmitting data to android mobile?

    ok so the best version of a graphene circuit I saw was a mouse pad. so the idea is A) graphene has a defined voltage drop (not defined unless applied evenly though) b) between 2 points you can see where a "jumper" has occurred as the voltage is changed C) using the 4 points will give a...
  5. donkey

    Correct name for push button switch

    momentary double pole double throw? momentary single pole double throw? momentary defines that you have to hold down the button to complete A connection double pole/ single pole is how many circuits you can have double throw means it connects to 1 device then other. triple throw would connect to...
  6. donkey

    Question about push button switch

    you could try a micro switch and a micro controller with MOSFETs. someone will probably have a small circuit that will do the same
  7. donkey

    Question about push button switch

    oh I forgot Rotary switch.... this might be closer to the cut out that you have in mind
  8. donkey

    Question about push button switch

    http://www.ebay.com.au/itm/MARINE-BOAT-THREADED-PUSH-PULL-3-POSITION-OFF-ON-ON-SWITCH-CP-BRASS-NUT-/272510797511?hash=item3f72e8c6c7:g:vsYAAOSwA3dYbc1x this suit your needs? push button switches are usually push on push off or NC NO types as it is hard to push a switch half way...
  9. donkey

    Solar setup question

    ok so rather than trying to understand a diagram you just hammer on one aspect that YOU feel is dangerous without understanding what it is about... nice work. so does anyone have any input on the actual question here?
  10. donkey

    Solar setup question

    Excellent... So where is the mistake????
  11. donkey

    Solar setup question

    this is known and is not the intent. the intent is to have some off the grid equipment that chews a butt load of power but is intermittent in use. power tools, dryer, 3d printer etc.... these are put in a shed that is not connected to the house via physical means including power. also I don't...
  12. donkey

    Just need a few suggestions

    well the batteries aren't that big.. but they do offer little power..... so yeah secondly cell phone towers have this option to triangulate. but the reason cell phone towers are so big is they handle multiple connections and go over a large area. a couple of HAM radios could theoretically do...
  13. donkey

    Solar setup question

    oh and the inverter might need to be piggy backed with others so having a way to monitor each and make sure they are working together would be AWESOME
  14. donkey

    Solar setup question

    So the question is hypothetically I wanted to make something like this with the option of adding more solar, so more regulators etc, can anyone design the setup stages so that I can Piggyback them as needed and make a complete solar grid?
  15. donkey

    Solar setup question

    Hey all hopefully last time I ask about solar for a while. ok so will upload a pic to give an idea of what I want to do
  16. donkey

    Linear Actuator Power Requirement

    Hey Paul the simple answer is YES this battery will work..... maybe just the once but yes it will work the MN21 is smaller than an AAA. the AAA is about 1200 mah and 1.5volts. the MN21 is 8 times greater in volts so 8 times LOWER in mah so about 150mah... then its also smaller and such.. WHAT I...
  17. donkey

    Just need a few suggestions

    a battery at best has about 10years life. that's if no charge/discharge. there are new techs like the 400years battery that is in the works but they are highly expensive and not yet available. having said that I don't think you HAVE to use cell towers or GPS. if you made a triangulation device...
  18. donkey

    Novice needs help!

    how does it plug into 12volts? Yes a transformer is needed and I have seen them cheaper then the Bluetooth device you are using... when I say cheaper, half to 1/4 that price the transformer used can be anything from a battery charger for your car, to an old PC laptop. THE MAIN CONCERN IS THAT IS...
  19. donkey

    power station question

    the reason I am asking is I am trying a solar setup in the back yard. the 12volts stuff is pretty simple. I really DON'T want to touch 240volt if possible. but having said that I don't want to have 100 power chords running from the back yard to the house. so I was RESEARCHING to see if any...
  20. donkey

    How can we Improve EP in 2017?

    actually maybe something for the more advanced users too.... I see a lot of posts about newbies trying to make emp coils (using as an example would prefer no one to ever detail how one works) through to replacing items in mains voltage. I know the common practise is to not allow this topic, and...
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