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Sensor

Description

The RB URF02 Ultrasonic Sensor is used exclusively for 5V power input. With the power supply, sensors keep transmitting at default transmit condition. Two modes of selection function are available: single-line mode only needs a signal line, greatly reduce the IO port resources; wire mode only needs a line of input and output signals. Detection distance can be accurate from 1cm to 500cm.RB URF02 Ultrasonic sensors can generate high frequency sound waves.

Specifications

Working voltage: +5v
Working current :< 20mA
Work frequency: 40 KHz
Temperature range: -10°C-+70°C
Detecting distance: 1cm-500cm
Resolution: 0.5cm
Accuracy: ±0.5%
Sensitivity: detect objects 2cm in diameter over 1.8m
Interface: TTL
Detecting range: directional (horizontal/vertical) 65 degrees
Weight: 9g
Size: 120mm x 115mm

Test Code

int duration;         
int distance;         
int srfPin = 2;        
 
void setup() 
{ 
Serial.begin(9600); 
} 
void loop() 
{ 
  pinMode(srfPin, OUTPUT); 
  digitalWrite(srfPin, LOW);            
  delayMicroseconds(2); 
  digitalWrite(srfPin, HIGH);           
  delayMicroseconds(10); 
  digitalWrite(srfPin, LOW);            
  pinMode(srfPin, INPUT); 
  duration = pulseIn(srfPin, HIGH);   
  distance = duration/58;  
  Serial.println(distance); 
  delay(50);             
}

File:Nextredirectltr.png购买 RB URF02 Ultrasonic Sensor)

LED/LCD

Motor

Controller

Communication Module

Mechanics