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  1. donkey

    broke my chair again

    so can anyone explain to me why office chairs allow you to recline but by doing so you break them? 3 chair in 2 years. and it hurts so badly when I fall. I am not that big of a person but yeah this is starting to hurt
  2. donkey

    hbridge help

    hey guys. am hoping someone is willing to help me out on something that I think is very easy but for some reason I just can't figure out. I am trying to make an 18volt out hbridge that hooks up to arduino. I see a few that are for lower end motors (9v being the highest) what I want to do is be...
  3. donkey

    Will MS Ever Get Things Right?

    when they figure out how to code right I assume lol
  4. donkey

    Two garage doors from one switch

    how big is the device you want to make? someone here could show a schematic that would do as stated before and trigger one then wait a second then trigger the second but if you want try an arduino. If the frequencies are the same then tell us what frequency it is? there will be a module for...
  5. donkey

    New to the forums and looking for some advice

    hi Rhett nice work so far. anyway I like what you are doing. I found arduino to be a very simple design with a huge support base. anyway if you want to measure the rotation speed of a motor try using one out of a scanner. on one end it usually has a wheel and a sensor so that the motor turns...
  6. donkey

    3phase breaker to single phase breaker

    hey John. am guessing au means your aussie. being aussie means you are limited to what you can do as per our legal system requires a qualified electrician to do work on all mains. I can't think of any way to do this project without the use of items like this http://www.phasechanger.com/ best of...
  7. donkey

    Two garage doors from one switch

    you could technically do this however there will be a momentary delay depending on how good you are. the idea is simple press the button which triggers device 1 then after that code is sent (usually micro seconds in length) send the second code. so the second door will open a few microseconds(or...
  8. donkey

    Solar->Battery->Timer->Water pump

    if you are using a mains powered pump then you can find a mains powered timer and inverter or you can use the 12volt timer before the inverter. just check what load it carries. as for alternatives look for a 12volt pump. depends on how much solution you need...
  9. donkey

    Solar->Battery->Timer->Water pump

    ok cos everyone has answered all my solar questions I will pass on the knowledge. 1 the size of panels you need is totally dependant on your setup.. if you are using a 12volt battery than 12volt is what you need. as for how many watts then you have to figure out how much load the battery is...
  10. donkey

    Is anyone using DesignSpark PCB?

    they have mechanic version too. love rs for this. have a few projects to do before checking out how good the program is
  11. donkey

    heating alternatives

    fish4fun I have been a way for a while and its good to see some new blood on here. especially one with new insights. great help so far. I have considered a myriad of alternatives but they mostly rely on a manufacturer making it for me. I think for home brewing Nichrome will be the best bet for...
  12. donkey

    heating alternatives

    they have a heated bed, and its only 12volt but its a 10 amp draw. I know that is only to warm it up and once it reaches temp that will cut down significantly. The problem is upsizing. I want to make one bigger than the standard 200mm square and finding a way to evenly distribute heat is what...
  13. donkey

    heating alternatives

    hey all. As you know I am currently in a project with another member who has been kind enough to offer his time to get a 3d printer going. The only thing I want to know is if anyone can offer a good option on heatbeds. Nichrome wire is where we are leading but thought I would at least ask...
  14. donkey

    basic needs for a home made wind turbine?

    I had to google rtfm... now I will use it a lot lol
  15. donkey

    Wireless trigger for LEDs and buzzers

    hey guys and girls if you want to see something that I liked about the nrf http://arduino-for-beginners.blogspot.com.au/2013/02/setup-nordic-nrf24l01-rf-modules-to.html here they hook it up to the pi as well. I would love to see where you guys go with this so will keep posted
  16. donkey

    Wireless trigger for LEDs and buzzers

    26 posts and name of teen gives me the assumption you are new to electronics. having said that you may have already built something awesome. anyway the simplest way to get into micro's is as steve said use a micro and a tranciever kit. Arduino is the most widely used for beginners but there...
  17. donkey

    Where can we get Peltier tiles?

    chuck4301 noob means newbie or new to this topic
  18. donkey

    Where can we get Peltier tiles?

    this is farr from a noob question. the most common form of peltiers are used for cooling computer chips which are generically a square shape. finding a very specific peltier mean googling the right thing. so if you want a curved one type in "curved peltier" if a circle shape type in circular...
  19. donkey

    How to address a moderator

    so a simple "sup" with a head nod isn't sufficient anymore?
  20. donkey

    Arduino uno board crystal

    http://arduino.cc/en/uploads/Main/Arduino_Uno_Rev3-schematic.pdf this shows the schematic if that helps. check arduino forums for more info
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