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10cm wire length
Pin Setup:
56MHz RFID IC Key Tag
Security and Instrumentation
when the token passes by the reader
HC-SR04 Ultrasonic Distance Sensor Arduino Nano 10cm wire lengthThis is the HC SR04 ultrasonic distance sensor. This economical sensor provides 2cm to 400cm of non contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC SR04 module includes an ultrasonic transmitter, a receiver and a control circuit. There are only four pins that you need to worry about on the HC SR04: VCC (Power), Trig (Trigger), Echo (Receive), and GND (Ground). You will find this sensor very easy to set up
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