VL53L0X Time-of-Flight (TOF) Laser distance sensor

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Introduction

The VL53L0X is a state-of-the-art Time-of-Flight (TOF) laser-ranging sensor that provides highly accurate distance measurements. It is capable of measuring absolute distances up to 2 meters, independent of the target reflectance. The sensor integrates an advanced laser-ranging module with a single-photon avalanche diode (SPAD) array, which allows for precise distance measurement in a compact form factor. This makes it suitable for applications such as obstacle detection, presence sensing, and proximity measurements in robotics, drones, and IoT devices.

Features

High Accuracy: Provides precise distance measurements with millimeter accuracy.
Long Range: Capable of measuring distances up to 2 meters.
Fast Measurement Time: Quick response time suitable for dynamic applications.
Compact Size: Small form factor for easy integration into various applications.
Low Power Consumption: Ideal for battery-powered applications.
I2C Interface: Simple communication with microcontrollers and other I2C devices.
Ambient Light Immunity: Operates effectively in various lighting conditions.

Specifications

Operating Voltage: 2.8V to 3.5V
Current Consumption: 10mA typical
Measurement Range: 30mm to 2000mm
Measurement Accuracy: ±3%
Output Data Rate: Up to 50Hz
Interface: I2C (address 0x29)
Field of View (FOV): 25 degrees
Operating Temperature: -20°C to 70°C

Pinout

VIN: Power supply pin (2.8V to 5V)
GND: Ground pin
SDA: I2C data line
SCL: I2C clock line
XSHUT: Shutdown pin (active low)
GPIO1: Interrupt pin (optional, can be used for advanced functionalities)

Dimensions

Size:25.0x10.7mm

How to Use

Power the Sensor: Connect the VIN pin to a power supply (2.6V to 5V) and the GND pin to ground.
Connect I2C Lines: Connect the SDA and SCL pins to the corresponding I2C lines of your microcontroller.
Optional Connections: Connect the XSHUT pin to a GPIO pin for enabling/disabling the sensor, and GPIO1 for interrupt functionalities if required.
Initialize the Sensor: Use a suitable library to initialize and configure the sensor. The following example demonstrates how to use the VL53L0X sensor with an Arduino.

// Example code for Arduino

#include <Wire.h>
#include <VL53L0X.h>

VL53L0X sensor;

void setup() {
  Serial.begin(9600);
  Wire.begin();

  sensor.init();
  sensor.setTimeout(500);

  if (!sensor.init()) {
    Serial.println("Failed to detect and initialize sensor!");
    while (1);
  }
}

void loop() {
  // Read the distance
  uint16_t distance = sensor.readRangeSingleMillimeters();
  
  // Check for out of range errors
  if (sensor.timeoutOccurred()) { 
    Serial.print("Timeout!");
  } else {
    Serial.print("Distance: ");
    Serial.print(distance);
    Serial.println(" mm");
  }

  delay(500); // Wait for half a second before the next reading
}

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// Example code for Arduino #include <Wire.h> #include <VL53L0X.h> VL53L0X sensor; void setup() { Serial.begin(9600); Wire.begin(); sensor.init(); sensor.setTimeout(500); if (!sensor.init()) { Serial.println("Failed to detect and initialize sensor!"); while (1); } } void loop() { // Read the distance uint16_t distance = sensor.readRangeSingleMillimeters(); // Check for out of range errors if (sensor.timeoutOccurred()) { Serial.print("Timeout!"); } else { Serial.print("Distance: "); Serial.print(distance); Serial.println(" mm"); } delay(500); // Wait for half a second before the next reading }