VL53L1X is an advanced time-of-flight (ToF) laser ranging sensor. It is a miniature ToF sensor with an accurate measurement range of up to 4m and a fast measurement frequency of up to 50Hz. It adopts a miniature reflowable package, integrates a SPAD receiving array, and is invisible at 940nm. Class1 laser emitters, physical IR filters and optics for optimal ranging performance in a wide range of ambient lighting conditions, and a variety of cover window options. Unlike traditional infrared sensors, the VL53L1X uses STTOF technology, which enables absolute distance measurement regardless of target color and reflectivity. The size of the ROI can also be programmed at the receive array, allowing for reduced sensor FoV.

Features:
Fully integrated micro module
Size: 4.9*2.5*1.56mm
Emitter: 940nm Stealth Laser (Class 1)
SPAD (Single Photon Avalanche Diode) receive array with integrated lens
Low-Power Microcontroller Running Advanced Digital Firmware
Pin compatible with VL53L0X FlightSense ranging sensor
Fast and accurate distance measurement over long distances
Distance measurement up to 400 cm
Ranging frequency up to 50Hz
Typical full field of view (FoV): 27°
Programmable region of interest (ROI) size on the receiver array, allowing sensor FoV to reduce programmable ROI position on the receiver array, providing multi-region operational control of the host
I2C interface (up to 400kHz)
Shutdown and Interrupt Pins

The main parameters:
Voltage: 3.3-5V
Communication interface: I2C
Size: 12*17*3.2mm
Distance: 4cm-4m

The VL53L0 uses ST's Flightsense technology to precisely measure the time it takes for an emitted infrared laser pulse to reach the nearest object and reflect it back to the detector, so it can be recognized as a tiny, self-contained lidar system. This time-of-flight (TOF) measurement makes it possible to accurately determine the absolute distance to the target without the object's reflectivity having a large effect on the measurement. The sensor can report distances up to 2 meters (6.6 feet) with a resolution of 1 mm, but its effective range and accuracy (noise) are highly dependent on environmental conditions and target characteristics, such as reflectivity and size, as well as sensor configuration. (Under less than ideal conditions, the accuracy of the sensor is specified from ±3% to over ±10%) Measurements can be made through the sensor's 2C (TWI) interface, which is also used to configure the sensor settings. The sensor provides two Additional pins: shutdown input and interrupt output. The VL53L0X is an excellent IC, but its small leadless LGA package makes it difficult for the typical student or hobbyist to use. It can also operate at the recommended 2.8V, which may allow the microcontroller to operate at 3.3V or 5V.

The main parameters:
Voltage: 3.3V-5V
Ruler time: 16.5×12.5X3mm
Ranging distance: default mode (30mm-1.2m) remote mode (1.5-2m)
Communication interface: I2C

The VL6180 is a time-of-flight ranging sensor. The sensor contains a very small laser source and a matching sensor. The VL6180X can detect the "time of flight" or the time it takes for the laser to recover the sensor to calculate the distance. Unlike most distance sensors that rely on the intensity or angle of reflected light to determine distance, the VL6180 uses a clock to measure the time it takes for light to bounce off a surface, because it uses a very narrow light source, unlike ultrasonic sonar, which Unlike traditional infrared distance sensors, you cannot tell how close an object is because there are no linearity issues or "dual imaging". Therefore, the accuracy of VL6180X is high. The VL6180 module is recommended to handle distances from 5mm to 100mm. Due to the small size of the sensor module, it is easy to use in any robotics or interactive project. You can use it with any 3-5V power supply or logic microcontroller.

Features:
1. The integrated intelligent optical module can be used for proximity sensing, ranging and other functions.
2. Fast and accurate distance measurement. Measure the absolute range from 0 to over 100mm. Based on object-independent spontaneous beam reflection measurements, measurements over a 100 mm range can be used under some extremely ideal target reflectivity and environments, but are not guaranteed.
3. I2C interface for device control and data, two programmable GPIOs.

The VL53L0X time-of-flight ranging sensor is a new generation of laser ranging modules, and the VL530X is a fully integrated sensor with embedded infrared, eye-safe laser, advanced filters and high-speed photon detection arrays for longer measurement distances, speed and accuracy higher sensing capability. The sensing capabilities of the VL53L0X can support a variety of functions, including gesture sensing or proximity detection for various innovative user interfaces, obstacle detection and collision avoidance systems for sweeping robots, service robots, home appliance sensing panels, and user presence on laptops. Detection or power switch monitors, as well as drones and Internet of Things (IOT) products, etc.

The main parameters:
Working voltage: 3-5V
Communication method: IIC
Measuring distance: 2m
XSHUTDOWN (reset)/GPIO (interrupt)