The M5Stack Unit I2C is an I2C interface ultrasonic distance sensor. This allows for easy I2C integration and multi-sensor operation using a single BUS, to save I/O resources. The module features an RCWL-9620 ultrasonic distance measurement chip with a 16mm probe, which the ranging accuracy can reach 2cm-450cm (accuracy up to 2%). It is ideal to apply in robotics obstacle avoidance, fluid level detection, and other applications that require you to perform measurements. Features RCWL-9620 Chip I2C communication interface (addr: 0x57) Measuring range: 2cm-450cm Protective housing Built-in temperature compensation, reduce the temperature drift Support UIFlow platform Package Contents 1x Unit UNIT SONIC I2C 1x HY2.0-4P cable (20cm) Specifications Specifications Parameters Ultrasonic Ranging Single Chip RCWL-9620 Range 2cm-450cm Probe Specifications 16mm Receiving/Transmitting Frequency 40KHz Receiving sensitivity -65dB Pointing angle 60 Measurement accuracy 2% Working current 2mA Net weight 10g Gross weight 25g Product size 56 * 24 * 15mm Packing size 76 * 47 * 29mm Resources Main documentation page Video