Sensor de Distância VL53L3CX com Regulador de Voltagem
Informação do fabricante:
This sensor is a carrier/breakout board for ST’s VL53L3CX laser-ranging sensor, which offers fast and accurate ranging up to 5 m. It uses the time of flight (ToF) of invisible, eye-safe laser pulses to measure absolute distances to multiple targets simultaneously, independent of ambient lighting conditions and target characteristics like color, shape, and texture (though these things will affect the maximum range). Distance measurements can be read through a digital I²C interface. The board includes a 2.8 V linear regulator and level-shifters that allow it to work over an input voltage range of 2.6 V to 5.5 V, and the 0.1″ pin spacing makes it easy to use with standard solderless breadboards and 0.1″ perfboards. Note: This is not recommended for use with 8-bit MCUs; for such applications, consider the VL53L1X or VL53L0X carrier.
The VL53L3CX from ST Microelectronics is a long-distance ranging time-of-flight (TOF) sensor integrated into a compact module. This board is a carrier for the VL53L3CX , so we recommend careful reading of the VL53L3CX datasheet (1MB pdf) before using this product.
The VL53L3CX is effectively a tiny, self-contained lidar system featuring an integrated 940 nm Class 1 laser, which is invisible and eye-safe. Unlike conventional IR sensors that use the intensity of reflected light to estimate the distance to an object, the VL53L3CX uses ST’s FlightSense technology to precisely measure how long it takes for emitted pulses of infrared laser light to reach the objects and be reflected back to a detector. This approach ensures absolute distance measurements independent of ambient lighting conditions and target characteristics (e.g. color, shape, texture, and reflectivity), though these external conditions do affect the maximum range of the sensor.
Under favorable conditions, the sensor can report distances up to 5 m (16 ft) with 1 mm resolution. The minimum ranging distance is 10 mm. Ranging measurements are available through the sensor’s I²C (TWI) interface, which is also used to configure sensor settings, and the sensor provides two additional pins: a shutdown input and an interrupt output.
Features and specifications:
- Dimensions: 0.5″ × 0.7″ × 0.085″ (13 mm × 18 mm × 2 mm)
- Weight without header pins: 0.5 g (0.02 oz)
- Operating voltage: 2.6 V to 5.5 V
- Supply current: ~15 mA (typical average during active ranging with default settings)
-Peak current can reach 40 mA
- Maximum range: 5 m (16 ft)
- Resolution: 1 mm
- Minimum range: 10 mm (0.4 in)
- Emitter: 940 nm invisible Class 1 VCSEL (vertical cavity surface-emitting laser) – eye-safe
- Detector: SPAD (single photon avalanche diode) receiving array
-Typical full field of view (FoV): 25°
- Output format (I²C): histogram
Included components:
A 1×7 strip of 0.1″ header pins and a 1×7 strip of 0.1″ right-angle header pins are included, as shown in the picture below. You can solder the header strip of your choice to the board for use with custom cables or solderless breadboards, or you can solder wires directly to the board itself for more compact installations.
The VL53L3CX 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.
The carrier board includes a low-dropout linear voltage regulator that provides the 2.8 V required by the VL53L3CX and allows the sensor to be powered from a 2.6 V to 5.5 V supply. The regulator output is available on the VDD pin and can supply almost 150 mA to external devices. The breakout board also includes a circuit that shifts the I²C clock and data lines to the same logic voltage level as the supplied VIN, making it simple to interface the board with 3.3 V or 5 V systems, and the board’s 0.1″ pin spacing makes it easy to use with standard solderless breadboards and 0.1″ perfboards. The board ships fully populated with its SMD components, including the VL53L3CX, as shown in the product picture.
For similar sensors, see our 400 cm VL53L1X carrier, 200 cm VL53L0X carrier, and 60 cm VL6180X carrier. These are physical drop-in replacements for the VL53L3CX carrier, but they have different APIs, so software for the VL53L3CX will need to be rewritten to work with them. These other carriers can also be used with typical 8-bit microcontrollers.
The VL53L0X, VL53L1X, and VL53L3CX carriers all use the same PCB (labeled irs11a), and the VL53L0X and VL53L3CX carriers look very similar. You might consider marking your boards if you have multiple types of sensors.
