SENS-A02YYUW Ultrasonic Sensor Module A02YYUW, Waterproof, 4.5 meters, 3.3~5V

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US$31.62
SENS-A02YYUW
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A02YYUW is a waterproof ultrasonic sensor module with a 4.5 meter effective ranging distance. 

It supports 3.3~5V wide voltage range and is compatible with 3.3V or 5V devices like Arduino, Raspberry Pi, etc. The average current of A02YYUW is only 8mA so it can be powered by most controllers' IO port. The ultrasonic sensor adopts closed separated probe, waterproof and dustproof, which could be well suitable for harsh and moist measuring environment. All the signal processing units are integrated inside the module, so users can directly obtain the distance value through Asynchronous Serial Interface. With 9600bit/s band rate, the sensor can easily communicate with upper-host or other MCU, which greatly shortens the developing cycle for users.

Use the sensor with Arduino controller to build up your projects, such as backing car annunciator, obstacle avoidance robot, object approaching detection etc.

Specification

  • Operating Voltage: 3.3~5V
  • standby Current: ≤5mA
  • Average Current: ≤8mA
  • Blind Zone Distance: 3cm
  • Ranging Distance for Flat Object: 3-450cm
  • Output: UART
  • Response Time: 100ms
  • Probe Center Frequency: 40K±1.0K
  • Operating Temperature: -15~60℃
  • Storage Temperature: -25~80℃
  • Sensing Angle: 60°
  • Protection Rate: IP67

UART Output

Output Communication

When "RX" floats or input High level, the module outputs processed value, the data is more steady, response time: 100-300ms; when input Low level, the module outputs real-time value, response time: 100ms.

UART

data bit

stop bit

parity

band rate

TTL level

8

1

none

9600bps

UART Output Form

Frame Data

Description

Byte

Header

0xFF

1 byte

DATA_H

Distance Data High 8-bits

1 byte

DATA_L

Distance Data Low 8-bits

1 byte

SUM

Checksum

1 byte

UART Output

Header

DATA_H

DATA_L

SUM

0xFF

0x07

0xA1

0xA7

Note: checksum only reserves the low 8-bits of the accumulated value.

SUM=(Header+Data_H+Data_L)&0x00FF
=(0XFF + 0X07 + 0XA1)&0x00FF
=0XA7;

Copy

Distance= Data_H*256+ Data_L=0X07A1;

Equal to 1953 when converted into decimal;

Represent the current measured distance is 1953mm.

Arduino Platform

Preparation

  • Hardware
    • Arduino UNO
    • UNO IO Sensor Expansion Board
    • A02YYUW Ultrasonic Sensor
    • 4P Connector
  • Software

Connection below

 Arduino connection

 

Sample Code

 Arduino samplae code

Raspberry Pi Platform

Preparation

  • Raspberry Pi 4B
  • Raspberry Pi IO Expansion Board
  • A02YYUW Ultrasonic Sensor
  • 4P Connector

Raspberry Pi Connection

Raspberry PI4B platform

Sample Code

Download the Ultrasonic Sensor Library 

Sensor Ultrasonic

More Documents

 

 

 

 

 

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