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  1. donkey

    electronic apps

    So anyway in my search to become the overlord of electronics I figure I would start... you now... learning and stuff. one thing I haven't found yet and hopefully we have a smart guy on here to do it, is a camera app for electronics. something that you can scan a part number and it pulls up a...
  2. donkey

    Would it be difficult to add a standard home thermostat to an electric portable house heater?

    hi Kuurt 1 thing I will say before you even start is NEVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVEREVER EVER EVER EVEREVER EVER EVER EVER play with mains appliances without knowing what you are doing, include in this statement some experience under a qualified electrician. having...
  3. donkey

    Solar Garden LED lights upgrade.

    a) well a car battery is 12volts..... LED's use less than that worry more about the amp hour rating for length of time. also car batteries need to have charge over 50%at all times or they tend to suffer b) the solar panel is 10w, on a full sun day you will get (watts divide volts=current) less...
  4. donkey

    Cool Project Idea

    PRETTY
  5. donkey

    Real Robots Live - multiplayer real life robotics game - call for ideas

    one issue I see is "We want robots to be able to construct structures, destroy them using weapons and interact with the arena (opening doors,etc.)." making a robot that can destroy things means you will have to replace the other robots from time to time latency and all the other items I would...
  6. donkey

    Smartphone with additional peripherals

    well to be honest beside the Ethernet port which I reckon you could work around I see no issue with using a phone for the Ethernet port you could write an app that uses the USB out then make an Ethernet connector board...... or you could try building one from the myriad of mini PC's coming out...
  7. donkey

    Simple 3 Axis Manual Robot (arm) Built With Arduino

    awesome couple of things to note is we do have a projects section also something like this could win you a prize on other sites.... instructables is my favourite at the moment they have robotics contests and coding ones every so often keep up the good work though P.S. sorry bout the reference to...
  8. donkey

    Anyone here in Melbourne?

    am in bris sorry... but if you locked yourself out again,,,, kick the door in
  9. donkey

    I want to build an electronic device but need help

    personally I would get a button battery and a flashing LED....... http://www.ebay.com/itm/100pcs-5mm-White-Self-Flash-Flashing-Blink-Water-Clear-Bright-LED-Light-3644-/301287478191 for the LED...
  10. donkey

    pen holder

    the pen holder in that pic looks like he melted it from another item
  11. donkey

    Peltier Cell Help

    ok so the insulation can be as simple a coat right through to a thermal blanket or a $10 fire blanket(probably cheaper over there) one thing I have seen from this thread is that you are trying to maintain a constant temp of 37... the issue is that the ambient temp is going to be -20 to +20...
  12. donkey

    Peltier cell beer cooler

    Maya a lot of people are using Lipo battery packs, these don't come in the 12volt variety.... oh and this thread is nearly a year old
  13. donkey

    Rest in Peace, Kris

    uhm wow..... he was actually nice enough to add me on google to help out with some silly problems I had. Am looking at his profile on there and still shocked... Children stories as told by Kris......
  14. donkey

    silly idea

    yeah that's what I am not understanding... this whole its 1 or 0 or both........ standard logic gates won't work on that will they? is there a quantum logic gate that I can't find that helps make the computer do what its supposed to do understanding basic logic its like telling a kid he's in...
  15. donkey

    Newbie in great need of help ! ! !

    bob I can send you a link but how will the kids activate it? are you attaching it to the kids? do you have a door way they have to go through? is it inside or outside? how much do you want to spend? the FM transmitter will NOT give a true distance measurement, but depending on where you want it...
  16. donkey

    Newbie in great need of help ! ! !

    http://www.ebay.co.uk/itm/433MHz-RF-Transmitter-Receiver-pair-wireless-kit-for-PIC-Arduino-Pi-UK-SELLER-/400832709617? was the item like this? you need a micro controller for that to best of my knowledge http://www.circuitstoday.com/200m-fm-transmitter is a simple FM transmitter circuit you...
  17. donkey

    Newbie in great need of help ! ! !

    completely agree. but having said that with a simple door bell how will it detect range? the only way I can see that happening is 2 trancievers they constantly poll each other, detect the range and then make sound if under 200 meters. as OP doesn't want anything microcontroller like I think this...
  18. donkey

    Newbie in great need of help ! ! !

    ok for me this is easier than you are making it... if ALL you want is to detect when something comes into range then you need a transmitter and receiver. the transmitter can only transmit the distance you want and receiver only picks up within the distance you want.... then transmit all the...
  19. donkey

    silly idea

    bob while I appreciate your input I don't think you are grasping the concept. when studying chemistry you get those balls that represent an atom, different sizes with different number of holes to show how an atom works. can you use that to make drinkable water? not a chance in hell. the idea...
  20. donkey

    silly idea

    its just an idea to try and figure out the basics of qubits. reading up on it I understand so little so seeing it in action might make it make sense, only thing I can think of that comes close is an h-bridge, but has to be 3 dimensional, so 3 of them. but how to make this tri-bridge manipulate...
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