Unit Ultrasonic is an ultrasonic distance measurement sensor unit with a split-type transceiver design. The ultrasonic probe has a sound wave frequency of 40Khz, a direction angle of ±20°, and an accuracy of up to 1mm. It is internally processed by the RCWL-9600 ultrasonic distance measurement chip, and the measurement results can be directly obtained through the I2C interface (0x57). The effective measurement range is 30 ~ 150cm.
