Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
You are not listening! Equal illumination of both sensors does not stop the motor! The circuit is too simplistic and impractical. It needs TWO comparators set up with a dead zone in the middle (where the two sensors have equal illumination) where the motor is stopped. This means that the circuit has THREE states: CW, OFF, CCW.
Your posted circuit only has ONE comparator, which can output only TWO states: CW and CCW. That means the motor is ALWAYS running, back and forth, back and forth,....
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