【Follow me第二季第4期】任务提交

eew_kTvRL7 · 发表于2024-12-29 09:42

【Follow me第二季第4期】任务提交 [复制链接]

# 任务介绍
本帖为[Follow me第二季第4期](https://www.eeworld.com.cn/huodong/digikey_follow_me_2024_04/ "Follow me第二季第4期")的任务提交帖。
任务包含以下内容：
1. 搭建环境并开启第一步Blink三色LED / 串口打印Hello DigiKey & EEWorld！
2. 调试IMU传感器，通过串口打印数据；
3. 调试PDM麦克风，通过串口打印收音数据和音频波形。
4. 通过RGB LED不同颜色显示PDM麦克风收到的声音大小；
5. 通过IMU数据结合机器学习算法，识别运动状态，并通过串口打印。

使用到的物料包括：
1. Arduino Nano RP2040 Connect
2. 无源蜂鸣器
3. 面包板

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<div class="tip tip_4 aimg_tip" id="aimg_875622_menu" style="position: absolute; display: none" disautofocus="true">
<div class="xs0">
<p><strong>214601jiceqcxvxqannfxe.png</strong> <em class="xg1">(453.01 KB, 下载次数: 0)</em></p>
<p>
<a href="javascript:;" class="loginf" >下载附件</a>

<a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_875622" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=875622&handlekey=savephoto_875622">保存到相册</a>

</p>

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</div>

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设计思路：除发声单元使用蜂鸣器模块，其它任务可使用板载器件完成。

# 软件流程图
## 任务1

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<a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_875624" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=875624&handlekey=savephoto_875624">保存到相册</a>

</p>

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</div>

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<a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_875623" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=875623&handlekey=savephoto_875623">保存到相册</a>

</p>

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```cpp
void rgbBlink(){

for(int i = 0; i < 100; i++){
  digitalWrite(LEDR,HIGH);
  digitalWrite(LEDG,LOW);
  digitalWrite(LEDB,LOW);
  delay(100);
  digitalWrite(LEDR,LOW);
  digitalWrite(LEDG,HIGH);
  digitalWrite(LEDB,LOW);
  delay(100);
  digitalWrite(LEDR,LOW);
  digitalWrite(LEDG,LOW);
  digitalWrite(LEDB,HIGH);
  delay(100);
}

}

void task1(){
Serial.println("********** Task 1 **********");
rgbBlink();
Serial.println("Hello DigiKey & EEWorld!");
Serial.println("********** Task 1 **********");
}
```

## 任务2

<ignore_js_op>

<a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_875625" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=875625&handlekey=savephoto_875625">保存到相册</a>

</p>

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<div class="tip tip_4 aimg_tip" id="aimg_875626_menu" style="position: absolute; display: none" disautofocus="true">
<div class="xs0">
<p><strong>Task_2.drawio.png</strong> <em class="xg1">(13.59 KB, 下载次数: 0)</em></p>
<p>
<a href="javascript:;" class="loginf" >下载附件</a>

<a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_875626" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=875626&handlekey=savephoto_875626">保存到相册</a>

</p>

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<div class="tip_horn"></div>
</div>

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```cpp
void task2(){

Serial.println("********** Task 2 **********");

static float Ax, Ay, Az;
static float Gx, Gy, Gz;

if (!IMU.begin()) {
  Serial.println("Failed to initialize IMU!");
  while (1);
}

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

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

for(int i = 0; i < 100; i++){
  if (IMU.accelerationAvailable()) {
  IMU.readAcceleration(Ax, Ay, Az);

Serial.println("Accelerometer data: ");
  Serial.print(Ax);
  Serial.print('\t');
  Serial.print(Ay);
  Serial.print('\t');
  Serial.println(Az);
  Serial.println();
  }

if (IMU.gyroscopeAvailable()) {
  IMU.readGyroscope(Gx, Gy, Gz);

Serial.println("Gyroscope data: ");
  Serial.print(Gx);
  Serial.print('\t');
  Serial.print(Gy);
  Serial.print('\t');
  Serial.println(Gz);
  Serial.println();
  }

delay(500);
}

IMU.end();
Serial.println("********** Task 2 **********");

}
```

## 任务3 & 4

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<a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_875628" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=875628&handlekey=savephoto_875628">保存到相册</a>

</p>

</div>
<div class="tip_horn"></div>
</div>

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<div class="tip tip_4 aimg_tip" id="aimg_875627_menu" style="position: absolute; display: none" disautofocus="true">
<div class="xs0">
<p><strong>Task_3.drawio.png</strong> <em class="xg1">(22.24 KB, 下载次数: 0)</em></p>
<p>
<a href="javascript:;" class="loginf" >下载附件</a>

<a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_875627" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=875627&handlekey=savephoto_875627">保存到相册</a>

</p>

</div>
<div class="tip_horn"></div>
</div>

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```cpp
void task3(){

Serial.println("********** Task 3 **********");

static const char channels = 1;
static const int frequency = 16000;

// Configure the data receive callback
PDM.onReceive(onPDMdata);
if (!PDM.begin(channels, frequency)) {
  Serial.println("Failed to start PDM!");
  while (1);
}

setPWM(pwm, 13, 4000, 50);

for(int i = 0; i < 100; i++){
  if (samplesRead) {

// Print samples to the serial monitor or plotter
  for (int i = 0; i < samplesRead; i++) {
  if(channels == 2) {
    Serial.print("L:");
    Serial.print(sampleBuffer<i>);
    Serial.print(" R:");
    i++;
  }

if(sampleBuffer<i> > 1000){
    digitalWrite(LEDR,HIGH);
    digitalWrite(LEDG,LOW);
    digitalWrite(LEDB,LOW);
  }else{
    digitalWrite(LEDR,LOW);
    digitalWrite(LEDG,HIGH);
    digitalWrite(LEDB,LOW);
  }

Serial.println(sampleBuffer<i>);
  }

// Clear the read count
  samplesRead = 0;

static int fq=4000;
  if(fq>=10000) fq=2000;
  fq+=1000;
  }

delay(500);
}

setPWM(pwm, 13, 100, 0);

Serial.println("********** Task 3 **********");

}
```

视频演示：[任务演示汇总](https://training.eeworld.com.cn/course/68897/learn?preview=1#lesson/42209 "任务演示汇总")
任务源码：审核中

秦天qintian0303 · 发表于2024-12-29 12:27

最新的arduinoIDE，也是只能显示50个数据

【Follow me第二季第4期】任务提交 [复制链接]

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