Hello all,
I am an engineering student working on a project for a class. The basis of the project is an optical sorter which seperates white ping pong balls from black ones. I have a photocell which needs to trigger a small 6V dc motor that moves a flipper. I can't figure out how to use the photocell to trigger the motor. The minimal resistance of the PC in bright light is 2.5K Ohms and the max is somewhere around 50K Ohms. My project needs to be very basic and not use any kind of a programmer, just simple circuitry and parts. I thought maybe i could use the photocell to excite a relay that switches the motor, but i don't know if this is foolish. Any help would be a great help. Thanks.
I am an engineering student working on a project for a class. The basis of the project is an optical sorter which seperates white ping pong balls from black ones. I have a photocell which needs to trigger a small 6V dc motor that moves a flipper. I can't figure out how to use the photocell to trigger the motor. The minimal resistance of the PC in bright light is 2.5K Ohms and the max is somewhere around 50K Ohms. My project needs to be very basic and not use any kind of a programmer, just simple circuitry and parts. I thought maybe i could use the photocell to excite a relay that switches the motor, but i don't know if this is foolish. Any help would be a great help. Thanks.