LIGHT SEEKING ROBOT


Posted on Feb 6, 2014

The circuit is light seeking; it will follow a flashlight around a darkened room. A pair of photocells determine the direction in which the robot will move. Each photocell is connected to an op amp configured as a comparator. When sufficient light falls on photocell R2, the voltage at the inverting input (pin 6) of ICl-a will fall below the voltag


LIGHT SEEKING ROBOT
Click here to download the full size of the above Circuit.

e at the non-inverting input (pin 5), so the output of the comparator will go high, and transistors Q1 and Q2 will turn on. That will enable relays RY1 and RY2, and thereby provide power for the right motor. The robot will then turn left. Likewise, when light falling on R3 lowers its resistance, Q2 and Q3 will turn on, the left motor will energize, and the robot will turn right.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Metal detector circuit with TDA2822
    Precision calibration standard
    Cell Phone Controlled Home Appliance circuit
    555 How can I make a 15 minute egg timer circuit
    IR Demodulator
    EFHW Tuner
    simple field strength meter
    A pulse booster circuit
    Simple adjustment of high input impedance double wave linear detection circuit RC4558DN



    Top