====== LamaPLC: VL53Lnn STMicroelectronics time-of-flight (ToF) laser-ranging sensors with I²C communication ======
{{ :sensor:vl53l0x.png?150|VL53L0X}}
The STMicroelectronics VL53L1X is the successor to the STMicroelectronics VL53L0X, offering significant enhancements in range, speed, and functionality, while maintaining pin-to-pin compatibility. The most notable difference is the maximum distance measurement: the VL53L1X supports up to 4 meters, compared with 2 meters for its predecessor.

**Feature Comparison:** \\

^Feature^STMicroelectronics VL53L0X^STMicroelectronics VL53L1X|
^Max Range (Optimal)|Up to 2 meters|Up to 4 meters|
^Max Ranging Frequency|Typically around 20 Hz (50 ms per measurement)|Up to 50 Hz|
^Field of View (FoV)|25° fixed|27° typical full FoV, but programmable (15° to 27°)|
^Multi-zone Capability|No|Yes, via programmable Region of Interest (ROI)|
^Ambient Light Immunity|Good (uses 940nm VCSEL and physical IR filters)|Improved (better performance in high ambient light)|
^Pin-to-Pin Compatibility|N/A|Pin-to-pin compatible with the VL53L0X sensor|
^Responsive time|50ms|50ms|
^Package Size|4.4 x 2.4 x 1.0 mm|4.9 x 2.5 x 1.56 mm (slightly larger)|
^Interface|I²C, default addr.: 0x29|I²C, default addr.: 0x29|

In summary, while the VL53L0X is a cost-effective choice for short-range applications, the VL53L1X offers enhanced performance and versatility for more demanding tasks, such as drone navigation, industrial automation, and gesture recognition, that require longer range and spatial awareness.

{{page>:tarhal}}

==== Arduino & VL53L1X ====
  * **VIN:** Power input (**2.8V - 5V**)
  * **GND:** Ground
  * **SCL:** I²C clock line
  * **SDA:** I²C data line
  * **XSHUT:** Shutdown pin, low-level shutdown, high-level normal operation
  * **GPIO1:** Programmable interrupt output

The VL53L1X typically operates at 3.3V. Ensure your module includes a voltage regulator and level shifters when connecting to a 5V board, such as an Arduino Uno.
==== Arduino code ====
To interface the VL53L1X Time-of-Flight (ToF) sensor with an Arduino, the **Pololu VL53L1X** library is widely recommended for its simplicity and small memory footprint.

<code c>
#include <Wire.h>
#include <VL53L1X.h>

VL53L1X sensor;

void setup() {
  Serial.begin(115200);
  Wire.begin();
  Wire.setClock(400000); // Use 400 kHz I2C for faster readings

  sensor.setTimeout(500);
  if (!sensor.init()) {
    Serial.println("Failed to detect and initialize sensor!");
    while (1);
  }

  // Set distance mode: Long (up to 4m) or Short (up to 1.3m)
  sensor.setDistanceMode(VL53L1X::Long);
  
  // Timing budget is the time spent taking one measurement (min 20ms short, 33ms long)
  sensor.setMeasurementTimingBudget(50000); // 50ms

  // Start continuous readings every 50ms
  sensor.startContinuous(50);
}

void loop() {
  // Read distance in millimeters
  uint16_t distance = sensor.read();
  
  Serial.print("Distance (mm): ");
  Serial.println(distance);

  if (sensor.timeoutOccurred()) {
    Serial.print(" TIMEOUT");
  }
}
</code>

===== I²C topics on lamaPLC =====
{{topic>i2c}}

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{{tag>VL53L0X VL53L1X VL53L0/1XV2 GY-530 time-of-flight ToF laser-ranging i2c communication sensor arduino code}}

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