Ultrasonic Module HC-SR04 Distance Transducer Sensor for Arduino
Product Feature :
HC-SR04 ultrasonic module can offer non-contact distance whose range sensing is up to 2mm function with the range of 2cm - 400cm. And the range accuracy is up to 2mm.
3V-5.5V RCWL-1603 Ultrasonic Module Distance Measuring Transducer Sensor for Arduino UART PWM GPIO Output w/ Temperature Compensation High Precision
The RCWL-1603 is an open ultrasonic ranging module with 3V-5.5V power supply. It contains a variety of working modes including UART, GPIO, PWM and UART AUTO OUT. Its temperature supplement adopts MCP9700 professional tempe...