Ultrasonic Distance Unit I2C (RCWL-9620)

by M5Stack

UNIT SONIC 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

Includes

  • 1x Unit UNIT SONIC I2C
  • 1x HY2.0-4P cable (20cm)

Application

  • Robot Obstacle Avoidance
  • Fluid Level Detection
  • Sitting Posture Detection

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 x 24 x 15mm
Packing size 76 x 47 x 29mm

Pin mapping

M5CORE - PORT A G21 G22 5V GND
UNIT SONIC I2C SDA SCL VCC GND

Example

Arduino