This circuit can be implemented with either TTL or CMOS logic. The speed depends on the logic used and the circuit can be used with microcontrollers, functioning as a shield.
This circuit is more sensitive than the previous one, triggering when a laser beam that hits the...
This circuit was obtained in a 1967 Electronics World. The components are still common today, the...
The simple touch of the fingers on a sensor causes this circuit to drive a motor that goes into...