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

• SONIC I2C TEST - with M5CORE