Laser Pointer Remote Control Circuit, Part 3 of 3 - Robot Room

Part 3: A simple on/off remote-control circuit triggered by a laser pointer aimed at cadmium-sulfide (CdS) light sensor photocells. Uses a Texas Instruments TLV3702 comparator and 74AC74 D-type flip-flop chip.

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Laser Pointer Remote Control Circuit, Part 2 of 3 - Robot Room