Vl53L0X Time -Of - Flight ( Tof ) เลเซอร์โมดูลเซนเซอร์ Breakout 940 Nm Gy - Vl 53 L 0X2 I2Cic
Descriptions:
The VL53L0X from ST Microelectronics is a time-of-flight ranging system integrated into a compact module. This board is a carrier for the VL53L0X so we recommend careful reading of the VL53L0X datasheet (1MB pdf) before using this product.
The VL53L0 uses STs FlightSense technology to precisely measure how long it takes for emitted pulses of infrared laser light to reach the nearest object and be reflected back to a detector so it can be considered a tiny self-contained lidar system. This time-of-flight (TOF) measurement enables it to accurately determine the absolute distance to a target without the objects reflectance greatly influencing the measurement. The sensor can report distances of up to 2 m (6.6 ft) with 1 mm resolution but its effective range and accuracy (noise) depend heavily on ambient conditions and target characteristics like reflectance and size as well as the sensor configuration. (The sensors accuracy is specified to range from ±3% at best to over ±10% in less optimal conditions.)
Ranging measurements are available through the sensors I⊃2;C (TWI) interface which is also used to configure sensor settings and the sensor provides two additional pins: a shutdown input and an interrupt output.
The VL53L0X is a great IC but its small leadless LGA package makes it difficult for the typical student or hobbyist to use. It also operates at a recommended voltage of 2.8 V which can make interfacing difficult for microcontrollers operating at 3.3 V or 5 V. Our breakout board addresses these issues making it easier to get started using the sensor while keeping the overall size as small as possible.
PIN Description
VDD Regulated 2.8 V output. Almost 150 mA is available to power external components. (If you want to bypass the internal regulator you can instead use this pin as a 2.8 V input with VIN disconnected.)
VIN This is the main 2.6 V to 5.5 V power supply connection. The SCL and SDA level shifters pull the I⊃2;C lines high to this level.
GND The ground (0 V) connection for your power supply. Your I⊃2;C control source must also share a common ground with this board.
SDA Level-shifted I⊃2;C data line: HIGH is VIN LOW is 0 V
SCL Level-shifted I⊃2;C clock line: HIGH is VIN LOW is 0 V
XSHUT This pin is an active-low shutdown input; the board pulls it up to VDD to enable the sensor by default. Driving this pin low puts the sensor into hardware standby. This input is not level-shifted.
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