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  1. donkey

    Arduino question

    ok people just very simply if I used an arduino mega and used every pin (54 in total from memory) how would it read all the sensors at once without drawing too many amps? am trying to make a gamepad with a few buttons and axes and they will be getting pressed or toggled in unison some times so...
  2. donkey

    Does Your Wiring-Soldering Look Like This?

    that was awesome. I am thinking he applied the solder by cutting of a length, rolling it into a ball then jamming the components into the solder. so now I know how to solder without the iron makes my soldering look like I am a seasoned veteran at it.
  3. donkey

    telephone circuits

    http://www.electroschematics.com/6658/telephone-ringtone-generator-circuit/ I was looking at this circuit in each phone, seems easy enough to make even with my ability... just have to figure out how to make my resistors bent like that(that is a really bad joke I know)
  4. donkey

    Raspberry Pi

    imagine if you will an over powered arduino with less pins for to communicate with hardware, but the ability to hook up several arduinos. the major differences ar arduino is made for robtics, pi is made as a computer(old school one) arduino has up to 52 pins to connect motors and servo's pi has...
  5. donkey

    telephone circuits

    ok let me show you a few things, this way I can run through the idea in full ok so the row of buttons to the right of 1-6 are the WIP's. I want to pick up the receiver one end and call the receiver on the other. that receiver will ring until picked up then talking is established. when the...
  6. donkey

    telephone circuits

    hey people, I know there is an easier way to do this than I can think of so tell me, how can I make an intercom system with ringing phones? I am using it to replicate an EWIS setup for training purposes and am currently going with a 2 amplifiers to make life easy (but not cheap) I want to do a...
  7. donkey

    Beginnings.

    scavenging rights to the local dump and dad brought home stuff for me to look at. always had a way of figuring things out easily. making one from scratch always eluded me though right now I am using electronics to make a doll house for my 8 week old. yup its gonna be massive and I reckon 2 year...
  8. donkey

    Return of The Old Youtube Comment System

    hey I've heard of youtube. thumbs up to OP
  9. donkey

    How to strip the insulation off 3 core main cables?

    I cut the side of the insulation length ways fold back the plastic and cut with side cutters... there are times where I disconnect it from mains first too. those are the days I want to live
  10. donkey

    Barcode reader IC

    http://www.taltech.com/barcodesoftware/articles/how_barcode_reader_works worth a read if you get bored. its pretty much a laser that emits a beam then a detector detects (as they usually do) the dark and light spots giving different reads of high or low to your micro. bout the best you will find...
  11. donkey

    Help with speed control

    ok a pot would work to slow it down. PWM controller would be better and knowing some of the guys on this forum they probably have a schematic for you. the issue with a pot is the same with all resistors... they over heat. having said that your AA won't be an issue. the other issue is that you...
  12. donkey

    Best basic electronics course

    seaspray, electronics is electronics... or are... anyway the issue is the course. does it cover what you want to know? does it also relate to you in your country? I have found a few books that are much cheaper that might give you a good start. Make electronics has a heap of fun things to do in...
  13. donkey

    something is different

    ..... I can't put my finger on it but something has changed here........ I log in and found the site weird oh I know I got a new keyboard..... that's the difference lol
  14. donkey

    Classic game systems

    ok so what you want to do is EXACTLY what you are doing on the pi? except you want to load the games via an sd card heard of a USB sd card reader? this would fulfil all your base needs. I have seen some projects that do this however. having said that roms are illegal if you don't have the...
  15. donkey

    AC finder

    cool ty
  16. donkey

    AC finder

    http://www.joblottools.co.uk/acatalog/Electronic-Tester-287.html something like that. a non contact device to detect whether power is connected or not. am after a circuit diagram for just the AC finder part
  17. donkey

    AC finder

    hey guys anyone got a circuit for an AC finder?
  18. donkey

    peltier air con

    yeah got an idea for a drip tray already but thanks for the input
  19. donkey

    Peltier Tile

    you can indeed use it for this. the question is why would you? between the myriad of solar charger, backup batteries, hand turned items, car chargers... its just another item that isn't that effective when shown the others.
  20. donkey

    where to connect pressure sensor to the bed?

    ok this is one of those questions that will need a lot more explaining. how big is the sensor? did it come with instructions? does it show a picture of best position? have you tried their website? this sounds like a premade item. we can have a guess or 3 but seriously the best bet is to...
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