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receiver and control circuit
long service life and reliable stability
Only three wires are required to communicate with the clock/RAM: CE
The flip-flops are also called as latching devices meaning it can remember one single bit of data and latch the output based on it
Ultrasonic Sensor ( Distance Measuring Module ) Recorder Module receiver and control circuitIntroduction: HC SR04 ultrasonic module can offer non contact distance sensing function, the range from 2cm to 400cm. and the range accuracy is up to 3mm; the module includes ultrasonic transmitter, receiver and control circuit. The sensor measures distance using sonar; an ultrasonic (well above human hearing) pulse is transmitted from the unit and distance to target is determined by measuring the time required for the echo return. The module is based