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Pay in 4 interest-free payments of $17.50 Learn more
Ships within 48 hours · Estimated delivery Sep 2 - Sep 7
when the token passes by the reader
10cm wire length
Security and Instrumentation
Pin Setup:
HC-SR04 Ultrasonic Distance Sensor Arduino Nano when the token passes byThis 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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