【Follow me第二季第4期】-任务提交与汇总

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【Follow me第二季第4期】-任务提交与汇总 [复制链接]

 

任务一：搭建环境并开启第一步Blink三色LED / 串口打印Hello DigiKey & EEWorld！；

基本思路：1.LED点亮与呼吸灯：对LEDR、LEDG、LEDB进行PWM写入

                  2.串口输出：设置波特率并且打印Hello DigiKey & EEWorld！

以下是代码：

#include "WiFiNINA.h"

#define Led1  LEDR
#define Led2  LEDG
#define Led3  LEDB

float angle1;
float angle2;
float angle3;

void setup() {
  // put your setup code here, to run once:
  pinMode(Led1, OUTPUT);
  pinMode(Led2, OUTPUT); 
  pinMode(Led3, OUTPUT);
  for(int i =0; i < 5 ; i++)
  {
    digitalWrite(Led1, LOW);
    digitalWrite(Led2, HIGH);
    delay(200);

    digitalWrite(Led2, LOW);
    digitalWrite(Led3, HIGH);
    delay(200);

    digitalWrite(Led3, LOW);
    digitalWrite(Led1, HIGH);
    delay(200);
  }
  angle1 = 0.0;
  angle2 = 0.0 + PI /3.0;
  angle3 = 0.0 + 2.0 * PI /3.0;
  Serial.begin(115200);



}

void loop() {
  // put your main code here, to run repeatedly:

  Serial.println("Hello Digikey & EEWorld");
  angle1 += 0.01;
  angle2 += 0.01;
  angle3 += 0.01;
  if(angle1 >= PI)
    angle1 -= PI;
  if(angle2 >= PI)
    angle2 -= PI;
  if(angle3 >= PI)
    angle3 -= PI;
    int a = sin (angle1) * 255;
    int b = sin (angle2) * 255;
    int c = sin (angle3) * 255;
    analogWrite(Led1 ,a);
    analogWrite(Led2 ,b);
    analogWrite(Led3 ,c);

    delay(50);

}

 

 

任务二：学习IMU基础知识，调试IMU传感器，通过串口打印六轴原始数据；

1.初始化陀螺仪采样频率

2.采集数据

3.打印数据到串口

以下是代码：

#include <Arduino_LSM6DSOX.h>
    float acc_x,acc_y,acc_z;
    float gyro_x,gyro_y,gyro_z;
    float temp;
    int update_flag;

    void setup() {
      // put your setup code here, to run once:
      Serial.begin(115200);
      if(!IMU.begin())
      {
        Serial.println("Falled to initialize IMU");
        while(1);
      
      }

      Serial.print("Acc sample rate = ");
      Serial.print(IMU.accelerationSampleRate());
      Serial.println("Hz");

      Serial.print("Gyro sample rate = ");
      Serial.print(IMU.gyroscopeSampleRate());
      Serial.println("Hz");

    }

    void loop() {
      // put your main code here, to run repeatedly:
      Serial.print("Acc sample rate = ");
      Serial.print(IMU.accelerationSampleRate());
      Serial.println("Hz");

      Serial.print("Gyro sample rate = ");
      Serial.print(IMU.gyroscopeSampleRate());
      Serial.println("Hz");


      if (IMU.accelerationAvailable())
      {
        IMU.readAcceleration(acc_x,acc_y,acc_z);
        update_flag = 1;
      }
      if (IMU.gyroscopeAvailable())
      {
        IMU.readGyroscope(gyro_x,gyro_y,gyro_z);
        update_flag = 1;
      }
      if (IMU.temperatureAvailable())
      {
        IMU.readTemperatureFloat(temp);
        update_flag = 1;
      }
      if (update_flag)
      {
        update_flag=0;
        Serial.print(acc_x);
        Serial.print(',');

        Serial.print(acc_y);
        Serial.print(',');

        Serial.print(acc_z);
        Serial.print(',');

        Serial.print(gyro_x);
        Serial.print(',');

        Serial.print(gyro_y);
        Serial.print(',');

        Serial.print(gyro_z);
        Serial.print(',');

        Serial.print(gyro_x);
        Serial.print(',');
        
        Serial.println(temp);
        delay(500);

      }

    }

 

 

任务三：学习PDM麦克风技术知识，调试PDM麦克风，通过串口打印收音数据和音频波形。

思路：

1.初始化麦克风（采样率）以及波特率

2.采集数据

3.串口打印数据

 

代码：

    #include "PDM.h"

    static const char channels = 1;
    static const int frequncy  = 24000;
    short sampleBuffer[512];
    volatile int samplesRead;

    void setup() {
      // put your setup code here, to run once:
      Serial.begin(115200);

      PDM.onReceive(onPDMdata);
      if(!PDM.begin(channels,frequncy))
      {
        Serial.println("Failed to start PDM!!!");
        while(1);


      }

    }

    void loop() {
      // put your main code here, to run repeatedly:

      if(samplesRead)
      {
        for(int i = 0; i < samplesRead; i++)
        {
          Serial.println(sampleBuffer[i]);
        }
        samplesRead=0;

      }
      delay(1);

    }

    void onPDMdata(){
      int bytesAvailable = PDM.available();
      PDM.read(sampleBuffer,bytesAvailable);
      samplesRead = bytesAvailable / 2;

    }