M5 StickC ToF HAT (VL53L0X)

M5 StickC ToF HAT (VL53L0X) Documentation

Overview

The M5 StickC ToF HAT (VL53L0X) is a Time-of-Flight (ToF) sensor module designed for distance measurement applications. It is based on the STMicroelectronics VL53L0X ToF sensor and is compatible with the M5StickC microcontroller. This module provides accurate distance measurements up to 2 meters with high speed and accuracy.

Technical Specifications

VL53L0X ToF Sensor
	+ Distance measurement range: up to 2 meters
	+ Measurement frequency: up to 50 Hz
	+ Accuracy: 1% at 1 meter
 M5StickC Compatibility
	+ I2C interface
	+ Operating voltage: 3.3V - 5V
	+ Dimensions: 30.5 x 17.5 mm

Software Libraries and Examples

The M5 StickC ToF HAT (VL53L0X) can be programmed using the Arduino IDE and the following libraries:

VL53L0X Library (by STMicroelectronics)
 M5StickC Library (by M5Stack)

Example 1: Distance Measurement

This example demonstrates how to use the M5 StickC ToF HAT (VL53L0X) to measure the distance to an object.
```cpp
#include <M5StickC.h>
#include <VL53L0X.h>

VL53L0X sensor; // Create a VL53L0X object

void setup() {
  M5.begin(); // Initialize M5StickC
  sensor.init(); // Initialize VL53L0X sensor
  sensor.setMode(VL53L0X::Mode::Continuous); // Set measurement mode to continuous
}

void loop() {
  int distance = sensor.readRangeContinuousMillimeters(); // Read distance in millimeters
  M5.Lcd.println("Distance: " + String(distance) + " mm"); // Print distance to M5StickC LCD
  delay(50); // Wait 50 ms before next measurement
}
```
Example 2: Gesture Recognition

This example demonstrates how to use the M5 StickC ToF HAT (VL53L0X) to recognize hand gestures (e.g., up, down, left, right).
```cpp
#include <M5StickC.h>
#include <VL53L0X.h>

VL53L0X sensor; // Create a VL53L0X object
int gesture = -1; // Initialize gesture variable

void setup() {
  M5.begin(); // Initialize M5StickC
  sensor.init(); // Initialize VL53L0X sensor
  sensor.setMode(VL53L0X::Mode::Continuous); // Set measurement mode to continuous
}

void loop() {
  int distance = sensor.readRangeContinuousMillimeters(); // Read distance in millimeters
  if (distance < 200 && distance > 150) { // Check if distance is within gesture range
    if (sensor.getOutOfRange() == 0) { // Check if sensor is not out of range
      int speed = sensor.getSpeed(); // Get speed of gesture
      if (speed > 100) { // Check if speed is above threshold
        if (distance > 175) {
          gesture = 0; // Recognize up gesture
        } else if (distance < 175) {
          gesture = 1; // Recognize down gesture
        }
      } else {
        gesture = -1; // Reset gesture
      }
    }
  }
  M5.Lcd.println("Gesture: " + String(gesture)); // Print gesture to M5StickC LCD
  delay(50); // Wait 50 ms before next measurement
}
```
Example 3: Obstacle Detection

This example demonstrates how to use the M5 StickC ToF HAT (VL53L0X) to detect obstacles within a certain range.
```cpp
#include <M5StickC.h>
#include <VL53L0X.h>

VL53L0X sensor; // Create a VL53L0X object
const int obstacleThreshold = 300; // Set obstacle detection threshold in millimeters

void setup() {
  M5.begin(); // Initialize M5StickC
  sensor.init(); // Initialize VL53L0X sensor
  sensor.setMode(VL53L0X::Mode::Continuous); // Set measurement mode to continuous
}

void loop() {
  int distance = sensor.readRangeContinuousMillimeters(); // Read distance in millimeters
  if (distance < obstacleThreshold) { // Check if distance is below obstacle detection threshold
    M5.Lcd.println("Obstacle detected!"); // Print obstacle detection message to M5StickC LCD
  } else {
    M5.Lcd.println("No obstacle detected"); // Print no obstacle detection message to M5StickC LCD
  }
  delay(50); // Wait 50 ms before next measurement
}
```
These examples demonstrate the basic usage of the M5 StickC ToF HAT (VL53L0X) for distance measurement, gesture recognition, and obstacle detection. You can modify and expand upon these examples to suit your specific project requirements.