UNIT SONIC IO

SKU:U098-B2

Description

UNIT SONIC IO is a GPIO interface ultrasonic range sensor. This 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%). This sensor determines the distance to a target by measuring time lapses between the transmitting and receiving of the pulse signal, users can directly obtain the distance value through IO control mode. It is ideal to apply in robotics obstacle avoidance, fluid level detection, and other applications that require you to perform measurements.

Note: When the measurement is more than 3.5m, there will be a slight delay in the response of the distance measurement data.

Features

• RCWL-9620
• GPIO communication interface
• Measuring range: 2cm-450cm
• Protective housing
• Built-in temperature compensation, reduce the temperature drift
• Support UIFlow platform

Includes

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

Applications

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

Specification

Resources	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%
Measurement period	50ms
Working current	3mA
Product Size	56 * 24 * 15mm
Package Size	76 * 47 * 29mm
Product Weight	11.5g
Package Weight	26g

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Module Size

Examples

Arduino

• M5Unit-Sonic with M5Atom

• M5Unit-Sonic with M5Core

• M5Unit-Sonic with M5Core2

• M5Unit-Sonic with M5StickC

• M5Unit-Sonic with M5StickCPlus

UIFlow

• UNIT SONIC IO UIFlow Example

UIFlow Blocks

• get distance

FAQ

Question: How to deal with the echo time of the ultrasonic sensor is too long or the ranging fails?

• If the sensor's echo time is too long or cannot be detected, it may be because the ultrasonic sensor is too close to the obstacle, or the ultrasonic waves do not reflect properly on a particular material. You can keep the measurement target at a distance from the sensor by adjusting the operating range of the sensor.

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Question: Can I use multiple ultrasonic sensors at the same time?

• Yes, you can use multiple ultrasonic sensors. Each sensor is assigned a different Trigger and Echo pin, and measured and processed separately in the code.

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Video

• Ultrasonic trolley obstacle avoidance