[作品提交] 【Follow me第二季第2期】--任务汇总

upc_arm 2024-11-1 17:44 楼主

## 感谢
    感谢论坛，通过这次活动，让我对Arduino UNO R4 WiFi的使用有了深入全面的了解，为后面的开发打开基础。

## 我的任务汇总
### 第一部分：演示视频
所有任务的视频如下：
<div id="player_cfd26ae22e86ac69b3f61feeb830bb970" class="localvideo-box"></div><div class="localvideo-title">演示汇总</div><br/>

### 第二部分：任务实现详情
### 任务简介
总共3个任务，分别是：
- (1) 入门程序Hello World
- (2) DAC生成波形图，MPAMP放大后ADC采集，再在点阵和串口显示波形
- (3) 用温湿度传感器采集数据，通过MQTT协议，在HA和MQTT工具上显示数据

### 物料清单
- (1) Arduino UNO R4 WiFi
- (2) SHT40温湿度传感器扩展板
- (3) Qwiic连接线

### 实物图

### 设计思路
3个任务设计思路基本类似：第一步设置各种外设；第二步初始化全局变量、WiFI、外设等；第三步大循环，读取温湿度传感器数据，处理，显示，通过MQTT发送到远端。

### 软件流程图
程序设计流程图如下图所示：

### 任务介绍
任务1
主要代码片段
```c
// the loop function runs over and over again forever
void loop() {
  digitalWrite(LED_BUILTIN, HIGH);  // turn the LED on (HIGH is the voltage level)
  Serial.println("LED ON\r\n");
  delay(3000);                      // wait for a second
  digitalWrite(LED_BUILTIN, LOW);   // turn the LED off by making the voltage LOW
  Serial.print("LED OFF\r\n");
  delay(1000);                      // wait for a second
}
```
分帖链接: 
[任务1帖子链接](https://bbs.eeworld.com.cn/thread-1295359-1-1.html "任务1帖子链接")

任务2

主要代码片段
```c
// Create an instance of the analogWave class, using the DAC pin
analogWave wave(DAC);

// LEDMatrix
ArduinoLEDMatrix matrix;

byte frame[8][12] = {
  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
};

// These constants won't change. They're used to give names to the pins used:
const int analogInPin = A0;  // Analog input pin that the potentiometer is attached to
const int analogOutPin = 9;  // Analog output pin that the LED is attached to

int freq = 1;
int time_idx = 0;

int sensorValue = 0;  // value read from the pot
int outputValue = 0;  // value output to the PWM (analog out)

void setup() {
  // initialize serial communications at 9600 bps:
  Serial.begin(19200);

//change to 14-bit resolution
  analogReadResolution(10);

// Generate a sine wave with the initial frequency
  wave.sine(freq);
  wave.amplitude(0.5);

// LED 
  matrix.begin();

if(false)
  {

// activate OPAMP, default channel 0
  if (!OPAMP.begin(OPAMP_SPEED_HIGHSPEED)) {
    Serial.println("Failed to start OPAMP!");
  }
  bool const isRunning = OPAMP.isRunning(0);
  if (isRunning) {
    Serial.println("OPAMP running on channel 0!");
  } else {
    Serial.println("OPAMP channel 0 is not running!");
  }
  }

}

void set_matrix(int idx, int num)
{
  for(int i=0; i<8; i++)
  {
    for(int j=0;j<11;j++)
    {frame<i>[j] = frame<i>[j+1];}
  }
  num = num / 16;
  for(int i=0; i<num; i++)
  {frame<i>[idx] = 1;}
}

void loop()
{

int reading = analogRead(A3);
  //int serial_num = reading / 64;
  int serial_num = map(reading, 0, 1023, 0, 255);
  Serial.println(String(serial_num));
  if(time_idx>=12)
  {time_idx=0;}
  //Serial.println("time_idx");
  //Serial.println(String(time_idx));
  //Serial.println("serial_num");
  //Serial.println(String(serial_num));
  set_matrix(10, serial_num);
  matrix.renderBitmap(frame, 8, 12);
  delay(50);
  time_idx = time_idx + 1;
}
```
分帖链接: 
[任务2帖子链接](https://bbs.eeworld.com.cn/thread-1295405-1-1.html "任务2帖子链接")

任务3

主要代码片段
```c
Adafruit_SHT4x sht4 = Adafruit_SHT4x();

//arduino_secrets.h header file
#define SECRET_SSID "yournetwork"
#define SECRET_PASS "yourpassword"

///////please enter your sensitive data in the Secret tab/arduino_secrets.h
char ssid[] = SECRET_SSID;        // your network SSID (name)
char pass[] = SECRET_PASS;        // your network password (use for WPA, or use as key for WEP)
int keyIndex = 0;                 // your network key index number (needed only for WEP)

int led =  LED_BUILTIN;
int status = WL_IDLE_STATUS;
WiFiServer server(80);

void setup() {
  Serial.begin(9600);
  while (!Serial)
    delay(10);     // will pause Zero, Leonardo, etc until serial console opens

Serial.println("Adafruit SHT4x test");
  if (! sht4.begin()) {
    Serial.println("Couldn't find SHT4x");
    while (1) delay(1);
  }
  Serial.println("Found SHT4x sensor");
  Serial.print("Serial number 0x");
  Serial.println(sht4.readSerial(), HEX);

// You can have 3 different precisions, higher precision takes longer
  sht4.setPrecision(SHT4X_HIGH_PRECISION);
  switch (sht4.getPrecision()) {
     case SHT4X_HIGH_PRECISION: 
       Serial.println("High precision");
       break;
     case SHT4X_MED_PRECISION: 
       Serial.println("Med precision");
       break;
     case SHT4X_LOW_PRECISION: 
       Serial.println("Low precision");
       break;
  }

// You can have 6 different heater settings
  // higher heat and longer times uses more power
  // and reads will take longer too!
  sht4.setHeater(SHT4X_NO_HEATER);
  switch (sht4.getHeater()) {
     case SHT4X_NO_HEATER: 
       Serial.println("No heater");
       break;
     case SHT4X_HIGH_HEATER_1S: 
       Serial.println("High heat for 1 second");
       break;
     case SHT4X_HIGH_HEATER_100MS: 
       Serial.println("High heat for 0.1 second");
       break;
     case SHT4X_MED_HEATER_1S: 
       Serial.println("Medium heat for 1 second");
       break;
     case SHT4X_MED_HEATER_100MS: 
       Serial.println("Medium heat for 0.1 second");
       break;
     case SHT4X_LOW_HEATER_1S: 
       Serial.println("Low heat for 1 second");
       break;
     case SHT4X_LOW_HEATER_100MS: 
       Serial.println("Low heat for 0.1 second");
       break;
  }
}

void loop() { 
  sensors_event_t humidity, temp;
  
  uint32_t timestamp = millis();
  sht4.getEvent(&humidity, &temp);// populate temp and humidity objects with fresh data
  timestamp = millis() - timestamp;

Serial.print("Temperature: "); Serial.print(temp.temperature); Serial.println(" degrees C");
  Serial.print("Humidity: "); Serial.print(humidity.relative_humidity); Serial.println("% rH");

Serial.print("Read duration (ms): ");
  Serial.println(timestamp);

delay(1000);
}

void printWiFiStatus() {
  // print the SSID of the network you're attached to:
  Serial.print("SSID: ");
  Serial.println(WiFi.SSID());

// print your WiFi shield's IP address:
  IPAddress ip = WiFi.localIP();
  Serial.print("IP Address: ");
  Serial.println(ip);

// print where to go in a browser:
  Serial.print("To see this page in action, open a browser to http://");
  Serial.println(ip);

}
```
分帖链接: 
[任务3帖子链接](https://bbs.eeworld.com.cn/thread-1295433-1-1.html "任务3帖子链接")

### 本次活动心得体会
    通过这次活动，让我对Arduino UNO R4 WiFi的ADC、DAC、串口、点阵、WIFI等模块的使用有了深入的学习，后面开发的话，可以直接基于这些项目进行。最后感谢论坛组织的这次活动！

### 第三部分：可以编译下载的代码：

<span class="showedittime"><i class="pstatus"> 本帖最后由 upc_arm 于 2024-11-2 11:14 编辑 </i></span>

各任务代码.zip (2024-11-2 11:03 上传)

3.48 KB, 下载次数: 2

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