Infrared Proximity Sensor(5 V-36 V) PIR 74HC85 is a 4-bit magnitude

74HC85 is a 4-bit magnitude comparator that can be expanded to almost any length

We can regulate the knob to adjust the sensitivity

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Both CEP and CET must be HIGH to count

Unique 64-bit address enables multiplexing

Infrared Proximity Sensor(5 V-36 V) PIR 74HC85 is a 4-bit magnitudeIntroduction: The Infrared Proximity Sensor (E18 D80NK) is a digital proximity sensor uses an infrared LED and receiver to determine the presence of an object within a specific distance. These make great obstacle detectors and can also be used as an optical gate or in positioning applications where stopping at certain distance is needed. Mounting this sensor is quite easy it has a long threaded body allowing for a considerable adjustment. The sensor