#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_MPU6050.h>
#include <Adafruit_Sensor.h>
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define SOUND_SPEED 0.034
#define CM_TO_INCH 0.393701
const int trigPin = 5;
const int echoPin = 18;
long duration;
float distanceCm;
float distanceInch;
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
Adafruit_MPU6050 mpu;
void setup() {
Serial.begin(115200);
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
Serial.println(F("SSD1306 allocation failed"));
for (;;);
}
while (!mpu.begin()) {
Serial.println("MPU6050 not connected!");
delay(1000);
}
Serial.println("MPU6050 ready!");
delay(500);
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(WHITE);
}
sensors_event_t event;
void loop() {
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
distanceCm = duration * SOUND_SPEED / 2;
distanceInch = distanceCm * CM_TO_INCH;
mpu.getAccelerometerSensor()->getEvent(&event);
display.clearDisplay();
display.setCursor(0, 0);
display.print("Distance: ");
display.print(distanceCm);
display.println(" cm");
display.print("Distance: ");
display.print(distanceInch);
display.println(" inch");
display.println("=====================");
display.print("[");
display.print(millis());
display.println("]");
display.print("X: ");
display.println(event.acceleration.x);
display.print("Y: ");
display.println(event.acceleration.y);
display.print("Z: ");
display.print(event.acceleration.z);
display.println(" m/s^2");
delay(1000);
display.display();
}