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MB1014 LV-ProxSonar®-EZ1™
Sensor Presentation
Dimensions
How we're using it
We Plan to use it to detect the distance between people and to trigger a piezo buzzer.
Applications and use
Run some code!
The MaxSonar EZ1 outputs analog voltage with a scaling factor of (Vcc/512) per inch. A supply of 5V yields ~9.8mV per inch. On the other hand, the Arduino’s analog-to-digital converter (ADC) has a range of 1024, which means each bit is ~4. 9mV. For that reason, to convert the number returned by the ADC to inches, we have to divide by 2.
// using the maxsonar quick start http://www.adafruit.com
// http://www.adafruit.com/index.php?main_page=product_info&cPath=35&products_id=172
int sonarPin = 0; //pin connected to analog out on maxsonar sensor
int piezoPin = 9; // specifies the pin connected to piezo from Arduino
int inchesAway; // inches away from the maxsonar sensor
void setup() {
pinMode(piezoPin, OUTPUT);
//Serial.begin(9600); // starts serial communication, used for debugging or seeing the values
}
void loop() {
inchesAway = analogRead(sonarPin) /2; // reads the maxsonar sensor and divides the value by 2
// approximate distance in inches
//Serial.print(inchesAway); // prints the sensor information from the maxsonar to the serial monitor
//Serial.println(" inches from sensor");
if (inchesAway < 24) { // if something is 24 inches away then make a 1khz sound
digitalWrite(piezoPin, HIGH);
delayMicroseconds(500);
digitalWrite(piezoPin, LOW);
delayMicroseconds(500);
}
}
• Proximity zone detection
• People detection
• Booths/Kiosks
• Robot navigation sensor
• Autonomous navigation
• Multi-sensor arrays
Product Description
Resolution of 1 inch
~2.5 second target acquire time*
~1.5 second target release time*
Automatic multi-sensor operation
People sensor
Maximum reported range of 254 inches (645 cm)
~5 foot proximity detection zone (60 inches or 152 cm)
Run up to 8+ sensors in the same environment
Choice of 2 digital outputs: Logic Level (High/Low) and RS232 serial
42kHz Ultrasonic sensor measures distance to objects
RoHS Compliant
Read from sensor outputs: Serial and Pulse Width
Virtually no sensor dead zone, objects closer than 6 inches range as 6 inches
Operates from 2.5-5.5V
Low 2.0mA average current requirement
Small, light weight module
Designed for easy integration into your project or product
Good balance between long and short range detection zone
MB1014 LV-ProxSonar®-EZ1™
These ultrasonic proximity sensors detect objects in a calibrated detection zone. The LV‑ProxSonar‑EZ sensors report when an object (such as a person) enters the detection zone. The target is released after leaving the LV‑ProxSonar‑EZ detection zone.