ME007YS Waterproof Ultrasonic Sensor Wiki - DFRobot

SEN0312 ME007YS Waterproof Ultrasonic Sensor

Introduction

Ultrasonic distance sensor determines the distance to a target by measuring time lapses between the sending and receiving of the ultrasonic pulse. ME007YS is an waterproof ultrasoinic sensor module with 4.5m effective ranging distance. It is compatible with 5V device like Arduino, Raspberry Pi, etc. The average current of ME007YS is only 8mA so it can be powered by most controllers' IO port.

The ultrasonic sensor adopts closed probe of transmitter & receiver, waterproof and dustproof, which could be well suitable for harsh and moist measuring environment. It reserves 2.54-4P interface and adopts UART communication. ME007YS has experienced long-term test and constant optimization so it can offer a pretty fast response time, high stability and sensitivity, and low power consumption.

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

Specification

SEN0312 ME007YS Waterproof Ultrasonic Sensor SEN0312 ME007YS Waterproof Ultrasonic Sensor SEN0312 ME007YS Waterproof Ultrasonic Sensor

Features

Installation Dimension

SEN0312 ME007YS Waterproof Ultrasonic Sensor Installation Dimension

Pinout

SEN0312 ME007YS Waterproof Ultrasonic Sensor Pinout
Label Name Description
1 VCC Power Input
2 GND Ground
3 RX Function Pin
4 TX UART Output

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;

Distance= Data_H*256+ Data_L=0X07A1;

Equal to 1953 when converted into decimal;

Represent the current measured distance is 1953mm.

Arduino Platform

Preparation

Connection

SEN0312 ME007YS Waterproof Ultrasonic Sensor Connection

Sample Code

/*
  *@File  : DFRobot_Distance_ME007YS.ino 
  *@Brief : This example use ME007YS ultrasonic sensor to measure distance
  *         With initialization completed, We can get distance value 
  *@Copyright [DFRobot](https://www.dfrobot.com),2016         
  *           GUN Lesser General Pulic License
  *@version V1.0           
  *@data  2019-8-28
*/

#include <SoftwareSerial.h>

SoftwareSerial mySerial(11,10); // RX, TX
unsigned char data[4]={};
float distance;

void setup()
{
 Serial.begin(57600);
 mySerial.begin(9600); 
}

void loop()
{
    do{
     for(int i=0;i<4;i++)
     {
       data[i]=mySerial.read();
     }
  }while(mySerial.read()==0xff);

  mySerial.flush();

  if(data[0]==0xff)
    {
      int sum;
      sum=(data[0]+data[1]+data[2])&0x00FF;
      if(sum==data[3])
      {
        distance=(data[1]<<8)+data[2];
        if(distance>280)
          {
           Serial.print("distance=");
           Serial.print(distance/10);
           Serial.println("cm");
          }else 
              {
                Serial.println("Below the lower limit");        
              }
      }else Serial.println("ERROR");
     }
     delay(500);
}

Raspberry Pi Platform

Preparation

Raspberry Pi Connection

SEN0312 ME007YS Waterproof Ultrasonic Sensor Raspberry Pi Connection

Sample Code

Download the Ultrasonic Sensor Library

# -*- coding:utf-8 -*-

'''
  # demo_get_distance.py
  #
  # Connect board with raspberryPi.
  # Run this demo.
  #
  # Connect ME007YS to UART
  # get the distance value
  #
  # Copyright   [DFRobot](https://www.dfrobot.com), 2016
  # Copyright   GNU Lesser General Public License
  #
  # version  V1.0
  # date  2019-8-31
'''

import time

from DFRobot_RaspberryPi_A02YYUW import DFRobot_A02_Distance as Board

board = Board()

def print_distance(dis):
  if board.last_operate_status == board.STA_OK:
    print("Distance %d mm" %dis)
  elif board.last_operate_status == board.STA_ERR_CHECKSUM:
    print("ERROR")
  elif board.last_operate_status == board.STA_ERR_SERIAL:
    print("Serial open failed!")
  elif board.last_operate_status == board.STA_ERR_CHECK_OUT_LIMIT:
    print("Above the upper limit: %d" %dis)
  elif board.last_operate_status == board.STA_ERR_CHECK_LOW_LIMIT:
    print("Below the lower limit: %d" %dis)
  elif board.last_operate_status == board.STA_ERR_DATA:
    print("No data!")

if __name__ == "__main__":
  dis_min = 0   #Minimum ranging threshold: 0mm
  dis_max = 4500 #Highest ranging threshold: 4500mm
  board.set_dis_range(dis_min, dis_max)
  while True:
    distance = board.getDistance()
    print_distance(distance)
    time.sleep(0.3) #Delay time < 0.6s

FAQ

For any questions, advice or cool ideas to share, please visit the DFRobot Forum

More Documents

DFshopping_car1.png Get ME007YS Waterproof Ultrasonic Sensor from DFRobot Store or DFRobot Distributor.

Turn to the Top