Need guide in building Mobile Robot

Discussion in 'The Projects Forum' started by SueLooi, Aug 4, 2011.

  1. SueLooi

    Thread Starter New Member

    Aug 4, 2011
    2
    0
    Hi there,

    I am currently building a Mobile Robot which can connect to the computer through wireless.

    I am using 2 stepper motors with 2 independent L297D ICs and L298 ICs connecting it to PIC16F877F. I have found quite a number of different circuits online and also looked through the datasheets for both the ICs but I am still stuck in designing the circuit to control the motors with batteries for power supply.

    Anyone can help me with it?
     
  2. praondevou

    AAC Fanatic!

    Jul 9, 2011
    2,936
    488
    Did you read THIS application note?

    Also, what voltages are you working with? What's the motor model?
     
  3. SueLooi

    Thread Starter New Member

    Aug 4, 2011
    2
    0
    Yes I have read that and did some research. I am still struggling on what kind of stepper motor to use. I have search the Malaysia market and found only 2 kinds of stepper motors. One is this :
    HIGH TORQUE STEP MOTORS
    TECO STEP MOTOR SPECIALISTS
    MODEL:DSH40EX24A2K51001
    5.1V 1.0A 38mm x38mm x25mm
    MADE IN TAIWAN

    Another one is just a normal one which I couldn't get the specs but all having 4 outputs. I am looking for something with only 3 outputs. Any recommendation?

    And I have this connections from my lecturer. I need to build exactly the same thing and need to figure out all myself without him explaining to me. I don't really understand some of the circuits. Can anyone help analyze it for me?

    [​IMG][​IMG][​IMG]
     
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