Unit Ultrasonic is an ultrasonic distance measurement sensor unit with a separate transmitter and receiver design. The ultrasonic probe operates at a frequency of 40kHz, with a directional angle of ±20° and an accuracy up to 1mm. It is powered by the RCWL-9600 ultrasonic ranging chip, which calculates the measurements internally, and the results can be directly obtained via the I2C interface (0x57). The effective measuring distance is 30 ~ 150cm.
