M5Stack Ultrasonic distance sensor RCWL-9620

The Unit Sonic IO is a GPIO interface ultrasonic distance sensor. This module features an RCWL-9620 ultrasonic distance measurement chip with a 16 mm probe, achieving a range accuracy of 2 cm to 450 cm (accuracy up to ±2%). This sensor determines the distance to a target by measuring the time differences between sending and receiving the pulse signal, allowing users to retrieve the distance value directly through the IO control mode. It is ideal for applications in robotics for obstacle avoidance, liquid level detection, and other scenarios that require precise measurements.