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Thread: bought something

  1. #1

    Default bought something

    hi
    dHiNaKaRaN (I) bought many things which ithink are useful for constructing a robot .the list goes like this
    1. soldering iron
    2. electronic solder
    3. spdt switches
    4. 6v motor
    5. micro controller
    6. photoresistors
    still to buy
    1. wheels
    2. NiMH batteries
    3. motor driver
    can anyone tell me what all still i should buy
    waiting for ur reply

  2. #2

    Default

    R u beginner. Don't jump directly into microcontroller. get

    ldr
    motors(buy good geared motors than buying cheap motors, so tht u can use it for ur life time, torque abt 2kgcm/s)
    Lm324
    LED+IRLED
    H-bridge(l293D)
    some relays
    photo diode
    some transistors


    Bibin John
    www.booksbybibin.tk

  3. #3
    Super Moderator T-1000 docel's Avatar
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    Default

    A good DMM.
    GOOD solder lead.
    IC bases, 8/14/16 pin.
    IC555
    Lots of resistors...
    ...AND capacitors.
    BreadBoard- soldering/Plug-in
    Charger for NiMh
    12V/2A variable power supply ( or 7805 with 10k pot between Gnd pin to Gnd)
    Lots of patience
    .....Time
    :lol:
    docel
    ^Anything is possible..
    after YOU prove it!!

    http://bangalorerobotics.tripod.com

  4. #4

    Default

    Where do you get 2A power supply from? All the reasonably priced wall adapters I can find are only 500mA. Should I buy a transformer and make my own ?

  5. #5

    Default

    better you go for an SMPS. I think u can get a second hand SMPS from any nearby computer shop. An old 486 SMPS is also good. This is the final and cheap solution to any power probs occur in robots.

    Bibin John
    www.booksbybibin.tk

  6. #6

    Default

    So I can just rip off a SMPS and use the different voltages on the ATX connector ? Thanks for the advice, will it out try soon.

  7. #7

    Default

    Ya tht's wht i had done. My senior had an old 486 PC and I used the SMPS of it. It has around 40W ratings. But the problem will occur when u transform ur robo circuit from SMPS to battery when u are going for some competition. I prefer go for SMPS than other supply. I bought one 1A adapter cost Rs.210 from Delhi, but it is not so good as I meant. By the same cost u can get some old SMPS
    http://booksbybibin.14.forumer.com/viewtopic.php?t=29

    Bibin John
    www.bibinjohn.tk

  8. #8
    Super Moderator T-1000 docel's Avatar
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    Yogi's suggestion is the best. I use these for various purposes, unimagined by the designers!!
    I meant 'Make One". The market 500ma should be read as 100-150ma.
    docel
    ^Anything is possible..
    after YOU prove it!!

    http://bangalorerobotics.tripod.com

  9. #9

    Default

    Quote Originally Posted by docel
    The market 500ma should be read as 100-150ma.
    Yup thats what happened, I was trying to make a 2 hr charger for some 700mAh NiCd cells and could only get 160mA out of a supposedly 500mA apapter.

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