The VL53-400 is a time-of-flight (ToF) distance sensor manufactured by Wit Motion. It utilizes advanced laser technology to measure distances with high accuracy and speed. This sensor is ideal for applications requiring precise distance measurements, such as robotics, drones, industrial automation, and proximity sensing. Its compact design and reliable performance make it a popular choice for both hobbyists and professionals.
Explore Projects Built with VL53-400
Use Cirkit Designer to design, explore, and prototype these projects online. Some projects support real-time simulation. Click "Open Project" to start designing instantly!
This circuit features an Arduino UNO microcontroller interfaced with an A9G GSM/GPRS+GPS/BDS module and two VL53L1X time-of-flight distance sensors. The A9G module is connected to the Arduino via serial communication for GPS and GSM functionalities, while both VL53L1X sensors are connected through I2C with shared SDA and SCL lines and individual SHUT pins for selective sensor activation. The Arduino is programmed to control these peripherals, although the specific functionality is not detailed in the provided code.
This circuit features an A-Star 32U4 Mini microcontroller connected to a VL53L8CX Time-of-Flight distance sensor and a servo motor. The microcontroller powers both the sensor and the servo, and it is configured to communicate with the sensor via I2C (using pins 2 and 3 for SDA and SCL, respectively) and to control the servo via a PWM signal on pin 10. The purpose of the circuit is likely to measure distances and respond with movements of the servo based on the sensor readings.
This circuit features an Arduino Mega 2560 microcontroller interfaced with multiple VL53L0X distance sensors, an OV7725 camera module, and an Adafruit LIS3MDL triple-axis magnetometer. The Arduino reads data from these sensors and the camera, likely for a robotics or environmental sensing application, and processes the data for further use or transmission.
This circuit features an Arduino 101 microcontroller interfaced with a VL53L1X distance sensor and five MG996R servo motors. The Arduino 101 controls the servos via PWM signals and reads distance measurements from the sensor over I2C, with power supplied through a power jack.
The VL53-400 is designed to deliver accurate and fast distance measurements. Below are its key technical details:
Parameter
Value
Operating Voltage
2.8V to 3.3V
Operating Current
20 mA (typical)
Measurement Range
0.05 m to 4 m
Accuracy
±3% (typical, depending on range)
Measurement Speed
Up to 50 Hz
Interface
I²C
Operating Temperature
-20°C to +70°C
Laser Wavelength
940 nm (Class 1 laser)
Dimensions
4.4 mm x 2.4 mm x 1.0 mm
Pin Configuration and Descriptions
The VL53-400 has a simple pinout for easy integration into circuits. Below is the pin configuration:
Pin Name
Pin Number
Description
VIN
1
Power supply input (2.8V to 3.3V)
GND
2
Ground
SDA
3
I²C data line
SCL
4
I²C clock line
XSHUT
5
Shutdown pin (active low)
GPIO1
6
Interrupt output or programmable GPIO
Usage Instructions
The VL53-400 is straightforward to use in a circuit, especially with microcontrollers like the Arduino UNO. Below are the steps to integrate and use the sensor:
Circuit Connection
Connect the VIN pin to a 3.3V power supply.
Connect the GND pin to the ground of your circuit.
Connect the SDA pin to the SDA pin on your microcontroller (A4 on Arduino UNO).
Connect the SCL pin to the SCL pin on your microcontroller (A5 on Arduino UNO).
Optionally, connect the XSHUT pin to a GPIO pin on your microcontroller for enabling/disabling the sensor.
Important Considerations
Ensure the operating voltage does not exceed 3.3V to avoid damaging the sensor.
Use pull-up resistors (typically 4.7 kΩ) on the SDA and SCL lines for proper I²C communication.
Avoid exposing the sensor to direct sunlight or reflective surfaces, as this may affect accuracy.
Sample Arduino Code
Below is an example of how to use the VL53-400 with an Arduino UNO:
#include <Wire.h>
#include <VL53L0X.h> // Include the VL53L0X library for ToF sensors
VL53L0X sensor; // Create an instance of the VL53L0X class
void setup() {
Serial.begin(9600); // Initialize serial communication
Wire.begin(); // Initialize I²C communication
// Initialize the VL53-400 sensor
if (!sensor.init()) {
Serial.println("Failed to initialize VL53-400 sensor!");
while (1); // Halt execution if initialization fails
}
sensor.setTimeout(500); // Set a timeout for measurements
Serial.println("VL53-400 initialized successfully!");
}
void loop() {
// Measure distance in millimeters
uint16_t distance = sensor.readRangeSingleMillimeters();
// Check for timeout errors
if (sensor.timeoutOccurred()) {
Serial.println("Sensor timeout occurred!");
} else {
Serial.print("Distance: ");
Serial.print(distance);
Serial.println(" mm");
}
delay(100); // Wait 100 ms before the next measurement
}
Notes on the Code
The VL53L0X library is used for communication with the sensor. Install it via the Arduino Library Manager.
The readRangeSingleMillimeters() function retrieves the distance in millimeters.
The setTimeout() function ensures the program does not hang if the sensor fails to respond.
Troubleshooting and FAQs
Common Issues
Sensor not responding or initializing:
Ensure the sensor is powered correctly (2.8V to 3.3V).
Verify the I²C connections (SDA and SCL) and check for loose wires.
Use pull-up resistors on the I²C lines if not already present.
Incorrect or fluctuating distance readings:
Avoid reflective or transparent surfaces in the sensor's field of view.
Ensure the sensor is not exposed to direct sunlight or strong ambient light.
Check for obstructions near the sensor's laser emitter or receiver.
Timeout errors in the code:
Verify the sensor's connection to the microcontroller.
Ensure the XSHUT pin is not held low, as this disables the sensor.
FAQs
Q: Can the VL53-400 measure distances beyond 4 meters?
A: No, the maximum measurement range of the VL53-400 is 4 meters. For longer ranges, consider other ToF sensors.
Q: Is the laser safe for human eyes?
A: Yes, the VL53-400 uses a Class 1 laser, which is safe under normal operating conditions.
Q: Can I use the VL53-400 with a 5V microcontroller?
A: Yes, but you must use a level shifter to step down the I²C signals to 3.3V to avoid damaging the sensor.
Q: How can I reduce noise in the distance readings?
A: Use averaging techniques in your code or implement a low-pass filter to smooth out the measurements.
By following this documentation, you can effectively integrate and use the VL53-400 sensor in your projects.
Open Project in Cirkit Designer
