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Arduino 簡介 + +

Arduino的種類

Arduino UNO

Arduino Nano

Arduino Mega

Arduino Bluetooth

Arduino Lily. Pad

Arduino Mini

Arduino Mini USB Adapter

Arduino Pro

Arduino Pro Mini

類Arduino或Arduino相容的I/O board • Seeeduino • Sanguino • Pinguino • funnel IO • . . .

了解Arduino I/O board

下載安裝Arduino IDE http: //arduino. cc/en/Main/Software

下載安裝Arduino IDE http: //arduino. cc/en/Main/Software

下載安裝Arduino IDE http: //arduino. cc/en/Main/Software

下載安裝Arduino IDE http: //arduino. cc/en/Main/Software

下載安裝Arduino IDE http: //arduino. cc/en/Main/Software

下載安裝Arduino IDE http: //arduino. cc/en/Main/Software

下載安裝Arduino IDE http: //arduino. cc/en/Main/Software

下載安裝Arduino IDE http: //arduino. cc/en/Main/Software

下載安裝Arduino IDE http: //arduino. cc/en/Main/Software

下載安裝Arduino IDE http: //arduino. cc/en/Main/Software

下載安裝Arduino IDE http: //arduino. cc/en/Main/Software

電阻色碼計算器 • https: //www. digikey. tw/zh/resou rces/conversioncalculators/conversion-calculatorresistor-color-code-4 -band

Built-in Functions

Variables, Arrays, and Data

Operators

Structure & Flow

Libraries

Libraries

1. LED 閃爍實驗 //int led = 2; #define led 2 //定義數字IO 2的名字為led void setup() //初始化部分 { pin. Mode(led, OUTPUT); //定義led引腳為輸出模式 } void loop() //主迴圈 { digital. Write(led, LOW); //led引腳輸出低電平，點亮led delay(1000); //延時1000 ms digital. Write(led, HIGH); //led引腳輸出高電平，熄滅led delay(1000); //延時1 s }

2. Hello. World實驗 void setup() { Serial. begin(9600); //設定串口串列傳輸速率為 9600 } void loop() { Serial. println(“Hello world!”); //串口輸出Hello world！ delay(1000); //延時1 s }

3. 按鍵控制LED實驗 void Scan. Key() { KEY_NUM = 0; if(digital. Read(KEY) == LOW) { delay(20); //延時去抖動 if(digital. Read(KEY) == LOW) { Buzzer. Di(); //滴一聲 KEY_NUM = 1; //設置鍵值 while(digital. Read(KEY) == LOW); //鬆手檢測 } } }

4. 有源蜂鳴器實驗 #define LED 13 #define KEY 2 #define Buzzer 3 int KEY_NUM = 0; //按鍵鍵值變數 void setup() { pin. Mode(LED, OUTPUT); //LED為IO輸出 pin. Mode(KEY, INPUT_PULLUP); //按鍵為IO帶上拉輸入 pin. Mode(Buzzer, OUTPUT); //蜂鳴器為IO輸出 digital. Write(Buzzer, LOW); //蜂鳴器初始為不鳴叫 } void loop() { Scan. Key(); //按鍵掃描 if(KEY_NUM == 1) //當有按鍵按下時 { digital. Write(LED, !digital. Read(LED)); //LED狀態翻轉 } }

4. 有源蜂鳴器實驗 void Scan. Key() { KEY_NUM = 0; if(digital. Read(KEY) == LOW) { delay(20); //延時去抖動 if(digital. Read(KEY) == LOW) { Buzzer. Di(); //滴一聲 KEY_NUM = 1; //設置鍵值 while(digital. Read(KEY) == LOW); //鬆手檢測 } } }

4. 有源蜂鳴器實驗 void Buzzer. Di() { digital. Write(Buzzer, HIGH); //蜂鳴器響 delay(20); //延時20 ms digital. Write(Buzzer, LOW); //蜂鳴器關閉 }

5. 可變電阻實驗 #define Pot A 0 //電位器引腳命名 int Pot. Buffer = 0; //AD讀取資料緩存變數 void setup() { Serial. begin(9600); //初始化串口串列傳輸速率為 9600 } void loop() { Pot. Buffer = analog. Read(Pot); //讀取AD值 Serial. print("Pot = "); //串口輸出“Pot = ” Serial. println(Pot. Buffer); //串口輸出Pot. Buffer的值 delay(500); //延時500 ms }

6. PWM 調光 #define Pot A 0 #define LED 3 int Pot. Buffer = 0; void setup() { pin. Mode(LED, OUTPUT); //IO輸出 } void loop() { Pot. Buffer = analog. Read(Pot); //讀取AD值 Pot. Buffer = map(Pot. Buffer, 0, 1023, 0, 255); //把AD值 0 -1023 縮放為 0 -255 analog. Write(LED, Pot. Buffer); //PWM調光，輸出PWM, 占空比為Pot. Buffer/255 }

7. 無源蜂鳴器實驗 #define Pot A 0 #define Buzzer 2 int Pot. Buffer = 0; void setup() { pin. Mode(Buzzer, OUTPUT); //蜂鸣器引脚设定为输出 } void loop() { Pot. Buffer = analog. Read(Pot); //读取AD值 for(int i = 0 ; i < 100 ; i++) //循环 100次 { digital. Write(Buzzer, HIGH); //设置输出高电平 delay. Microseconds(Pot. Buffer); //延时Pot. Buffer值 us digital. Write(Buzzer, LOW); //设置输出低电平 delay. Microseconds(100); //延时 100 us } delay(1000); //延时 1000 ms }

8. 光敏電阻實驗 （天黑請開燈） #define ADpin A 5 #define LED 13 int ADBuffer = 0; void setup() { pin. Mode(LED, OUTPUT); Serial. begin(9600); //串列傳輸速率9600 }

8. 光控 LED 實驗 （天黑請開燈） void loop() { ADBuffer = analog. Read(ADpin); //讀取AD值 Serial. print("AD = "); Serial. println(ADBuffer); if(ADBuffer > 900) //ADBuffer值大於設定值，相當於光照強度小於設定值 { digital. Write(LED, HIGH); //點亮LED } else { digital. Write(LED, LOW); //關閉LED } delay(500); //延時500 ms }

9. 一位共陰七段顯示實驗 0 1 2 3 4 5 6 7 8 9 h 0 g 0 f 1 e 1 d 1 c 1 b 1 a 1 0 0 0 1 1 0 1 0 0 1 1 0 1 1 1 0 1 0 0 0 1 1 1 1 1 0 1 1 1 1

9. 一位共陰七段顯示實驗 #include <Arduino. h> #define SEG_a 2 //IO命名 #define SEG_b 3 #define SEG_c 4 #define SEG_d 5 #define SEG_e 6 #define SEG_f 7 #define SEG_g 8 #define SEG_h 9

9. 一位共陰七段顯示實驗 void setup() { pin. Mode(SEG_a, OUTPUT); //設置引腳為輸出 pin. Mode(SEG_b, OUTPUT); pin. Mode(SEG_c, OUTPUT); pin. Mode(SEG_d, OUTPUT); pin. Mode(SEG_e, OUTPUT); pin. Mode(SEG_f, OUTPUT); pin. Mode(SEG_g, OUTPUT); pin. Mode(SEG_h, OUTPUT); }

9. 一位共陰七段顯示實驗 void loop() { unsigned char i; for( i = 0 ; i < 10 ; i++) //迴圈顯示 0 -9 { digital. Write(SEG_a, table[i][7]); //設置a引腳的電平 digital. Write(SEG_b, table[i][6]); digital. Write(SEG_c, table[i][5]); digital. Write(SEG_d, table[i][4]); digital. Write(SEG_e, table[i][3]); digital. Write(SEG_f, table[i][2]); digital. Write(SEG_g, table[i][1]); digital. Write(SEG_h, table[i][0]); delay(1000); //延遲 1 s } }

10. 四位共陰七段顯示實驗 #include <Arduino. h> #define SEG_A 2 #define SEG_B 3 #define SEG_C 4 #define SEG_D 5 #define SEG_E 6 #define SEG_F 7 #define SEG_G 8 #define SEG_H 9 #define COM 1 10 #define COM 2 11 #define COM 3 12 #define COM 4 13

10. 四位共陰七段顯示實驗 void setup() { pin. Mode(SEG_A, OUTPUT); //設置為輸出引腳 pin. Mode(SEG_B, OUTPUT); pin. Mode(SEG_C, OUTPUT); pin. Mode(SEG_D, OUTPUT); pin. Mode(SEG_E, OUTPUT); pin. Mode(SEG_F, OUTPUT); pin. Mode(SEG_G, OUTPUT); pin. Mode(SEG_H, OUTPUT); pin. Mode(COM 1, OUTPUT); pin. Mode(COM 2, OUTPUT); pin. Mode(COM 3, OUTPUT); pin. Mode(COM 4, OUTPUT); }

10. 四位共陰七段顯示實驗 void loop() { Display(1, 1); //第 1位元顯示 1 delay(3); Display(2, 2); //第 2位元顯示 2 delay(3); Display(3, 3); //第 3位元顯示 3 delay(3); Display(4, 4); //第 4位元顯示 4 delay(3); }

10. 四位共陰七段顯示實驗 void Display(unsigned char com, unsigned char num) //顯示函數，com可選數值範圍1 -4，num可選數值範圍0 -9 { digital. Write(SEG_A, LOW); //去除餘暉 digital. Write(SEG_B, LOW); digital. Write(SEG_C, LOW); digital. Write(SEG_D, LOW); digital. Write(SEG_E, LOW); digital. Write(SEG_F, LOW); digital. Write(SEG_G, LOW); digital. Write(SEG_H, LOW);

10. 四位共陰七段顯示實驗 switch(com) //選通位選 { case 1: digital. Write(COM 1, LOW); //選擇位1 digital. Write(COM 2, HIGH); digital. Write(COM 3, HIGH); digital. Write(COM 4, HIGH); break; case 2: digital. Write(COM 1, HIGH); digital. Write(COM 2, LOW); //選擇位2 digital. Write(COM 3, HIGH); digital. Write(COM 4, HIGH); break;

10. 四位共陰七段顯示實驗 case 3: digital. Write(COM 1, HIGH); digital. Write(COM 2, HIGH); digital. Write(COM 3, LOW); //選擇位3 digital. Write(COM 4, HIGH); break; case 4: digital. Write(COM 1, HIGH); digital. Write(COM 2, HIGH); digital. Write(COM 3, HIGH); digital. Write(COM 4, LOW); //選擇位4 break; default: break; }

10. 四位共陰七段顯示實驗 digital. Write(SEG_A, table[num][7]); //a查詢碼值表 digital. Write(SEG_B, table[num][6]); digital. Write(SEG_C, table[num][5]); digital. Write(SEG_D, table[num][4]); digital. Write(SEG_E, table[num][3]); digital. Write(SEG_F, table[num][2]); digital. Write(SEG_G, table[num][1]); digital. Write(SEG_H, table[num][0]); }

11. 累加器實驗 #define KEY 0 int SUM = 0; int Flag_up = 1; pin. Mode(KEY, INPUT_PULLUP); //按鍵IO設定為帶上拉輸入

11. 累加器實驗 void loop() { if( Scan. Key() == 1) //當有按鍵按下時 { SUM++; //SUM加一 if(SUM>9999) //最大值 9999，不再累加 { SUM = 9999; } } Display(1, SUM/1000); //顯示SUM千位元值 delay(3); Display(2, SUM%1000/100); //顯示SUM百位元值 delay(3); Display(3, SUM%100/10); //顯示SUM十位元值 delay(3); Display(4, SUM%10); //顯示SUM個位值 delay(3); }

11. 累加器實驗 unsigned char Scan. Key() //按鍵掃描程式，返回鍵值 { if(Flag_up && digital. Read(KEY) == LOW) { Flag_up = 0; //清空Flag_up delay(20); //延時去抖動 if(digital. Read(KEY) == LOW) //按鍵按下 { return 1; //返回鍵值 1 } } if(digital. Read(KEY) == HIGH) //按鍵鬆開時候 { Flag_up = 1; //置位Flag_up } return 0; //返回鍵值 0 } //當Flag_up = 1並且按鍵按下時

12. 步進馬達驅動實驗 #include <Arduino. h> #define A 1 2 //引腳命名 #define B 1 3 #define C 1 4 #define D 1 5 void setup() { pin. Mode(A 1, OUTPUT); //設置引腳為輸出引腳 pin. Mode(B 1, OUTPUT); pin. Mode(C 1, OUTPUT); pin. Mode(D 1, OUTPUT); }

12. 步進馬達驅動實驗 void Phase_A() { digital. Write(A 1, HIGH); //A 1引腳高電平 digital. Write(B 1, LOW); digital. Write(C 1, LOW); digital. Write(D 1, LOW); } void Phase_B() { digital. Write(A 1, LOW); digital. Write(B 1, HIGH); //B 1引腳高電平 digital. Write(C 1, LOW); digital. Write(D 1, LOW); }

12. 步進馬達驅動實驗 void Phase_C() { digital. Write(A 1, LOW); digital. Write(B 1, LOW); digital. Write(C 1, HIGH); //C 1引腳高電平 digital. Write(D 1, LOW); } void Phase_D() { digital. Write(A 1, LOW); digital. Write(B 1, LOW); digital. Write(C 1, LOW); digital. Write(D 1, HIGH); //D 1引腳高電平 }

#define LM 35 A 0 int val = 0; //存放AD變數緩存 float temp = 0; //溫度值 void setup() { Serial. begin(9600); //串口串列傳輸速率9600 } void loop() { val = analog. Read(LM 35); //讀取AD值 temp = val * 0. 48876; //計算溫度值 Serial. print("LM 35 = "); Serial. println(temp); //串口輸出溫度值 delay(1000); }

14. 液晶LCD 1602實驗 Liquid. Crystal I 2 C

14. 液晶LCD 1602實驗 Liquid. Crystal I 2 C #include <Liquid. Crystal. h> #define LM 35 A 0 Liquid. Crystal lcd(12, 11, 5, 4, 3, 2); //構造一個Liquid. Crystal的類成員。使用數位IO ，12, 11, 5, 4, 3, 2 int val = 0; //存放AD變數值 float temp = 0; //存放溫度值的10倍 void setup() { lcd. begin(16, 2); //初始化LCD 1602 lcd. print("Welcome to use!"); //液晶顯示Welcome to use！ delay(1000); //延時1000 ms lcd. clear(); //液晶清屏 }

14. 液晶LCD 1602實驗 Liquid. Crystal I 2 C void loop() { val = analog. Read(LM 35); //讀取AD值 temp = val * 4. 8876; //轉換為溫度值的10倍，有利於液晶顯示 lcd. set. Cursor(0, 0); //設置液晶開始顯示的指標位置 lcd. print("LM 35 temp ="); //液晶顯示“LM 35 temp =” lcd. set. Cursor(0, 1); //設置液晶開始顯示的指標位置 lcd. print((int)temp/10); //液晶顯示溫度整數值 lcd. print(". "); //液晶顯示小數點 lcd. print((int)temp%10); //液晶顯示溫度小數值 lcd. print((char)223); //液晶顯示"°" lcd. print("C"); //液晶顯示“C” delay(1000); //延時1000 ms }

15. 水銀開關實驗 void setup() { pin. Mode(KEY, INPUT_PULLUP); //按鍵設置為輸入帶上拉 pin. Mode(Buzzer, OUTPUT); //attach. Interrupt(0, Buzzer. Di, FALLING); //設置ARDUINO UNO中斷 0（數字IO 2），下降沿觸發中斷函數Buzzer. Di， attach. Interrupt(1, Buzzer. Di, FALLING); //設置ARDUINO Leonardo中斷 1（數字IO 2），這點和UNO有所不同，請知悉！ Serial. begin(9600); }

15. 水銀開關實驗 void loop() { if(flag == 1 //如果flag被置一，說明有中斷產生，執行該段程式 { flag = 0; //flag清零 digital. Write(Buzzer, HIGH); //蜂鳴器響 delay(1000); //延時1000 ms } else { digital. Write(Buzzer, LOW); //沒有中斷時候，蜂鳴器不響 } Serial. println(count); //串口顯示中斷次數 }

16. 火焰感測器實驗 #define ADpin A 0 #define Buzzer 2 int ADBuffer = 0; void setup() { pin. Mode(Buzzer, OUTPUT); Serial. begin(9600); }

16. 火焰感測器實驗 void loop() { ADBuffer = analog. Read(ADpin); //都AD值 Serial. print("AD = "); Serial. println(ADBuffer); if(ADBuffer > 20) //當AD值大於設定值時候 { digital. Write(Buzzer, HIGH); //蜂鳴器報警 } else { digital. Write(Buzzer, LOW); //蜂鳴器取消報警 } delay(500); //延時500 ms }

17. 三原色 LED 七彩變換 #define LED_R 2 #define LED_G 3 #define LED_B 4 enum{Color_R, Color_G, Color_B, Color_RG, Color_RB, Color_GB, Color_RGB}; //枚舉所有的顏色 //紅，綠，藍，黃，紫，青，白 void setup() { pin. Mode(LED_R, OUTPUT); pin. Mode(LED_G, OUTPUT); pin. Mode(LED_B, OUTPUT); }

17. 三原色 LED 七彩變換 void loop() { unsigned int i; for(i = 0 ; i < 7 ; i++) //七種顏色選擇 { Change_Color(i); //選擇第i種顏色顯示 delay(1000); //延時1000 ms } }

17. 三原色 LED 七彩變換 void Change_Color(unsigned char data_color) //選擇顏色函數 { switch(data_color) { case Color_R: //紅色 digital. Write(LED_R, LOW); digital. Write(LED_G, HIGH); digital. Write(LED_B, HIGH); break; case Color_G: //綠色 digital. Write(LED_R, HIGH); digital. Write(LED_G, LOW); digital. Write(LED_B, HIGH); break;

17. 三原色 LED 七彩變換 case Color_B: //藍色 digital. Write(LED_R, HIGH); digital. Write(LED_G, HIGH); digital. Write(LED_B, LOW); break; case Color_RG: //黃色 digital. Write(LED_R, LOW); digital. Write(LED_G, LOW); digital. Write(LED_B, HIGH); break;

17. 三原色 LED 七彩變換 case Color_RB: //紫色 digital. Write(LED_R, LOW); digital. Write(LED_G, HIGH); digital. Write(LED_B, LOW); break; case Color_GB: //青色 digital. Write(LED_R, HIGH); digital. Write(LED_G, LOW); digital. Write(LED_B, LOW); break;

17. 三原色 LED 七彩變換 case Color_RGB: //白色 digital. Write(LED_R, LOW); digital. Write(LED_G, LOW); digital. Write(LED_B, LOW); break; default: break; } }

18. 通過按鍵切換 LED 顏色 #define LED_R 2 #define LED_G 3 #define LED_B 4 #define KEY 5 unsigned char KEY_NUM = 0; unsigned char Color_Value = 0; enum{Color_R, Color_G, Color_B, Color_RG, Color_RB, Color_GB, Color_RGB}; //枚舉所有顏色 //紅，綠，藍，黃，紫，青，白 void setup() { pin. Mode(LED_R, OUTPUT); pin. Mode(LED_G, OUTPUT); pin. Mode(LED_B, OUTPUT); pin. Mode(KEY, INPUT_PULLUP); Change_Color(Color_RGB); //初始化顏色為白色 }

18. 通過按鍵切換 LED 顏色 void loop() { Scan_KEY(); //按鍵掃描 if(KEY_NUM == 1) //按鍵執行程式 { KEY_NUM = 0; //清空標誌位元 Change_Color(Color_Value); //切換顏色 Color_Value++; //顏色變數+1 if(Color_Value == Color_RGB+1) //當顏色變數 == 7 { Color_Value = Color_R; //顏色變數清零 } } }

18. 通過按鍵切換 LED 顏色 void Change_Color(unsigned char data_color) //選擇顏色函數 { switch(data_color) { case Color_R: //紅色 digital. Write(LED_R, LOW); digital. Write(LED_G, HIGH); digital. Write(LED_B, HIGH); break; case Color_G: //綠色 digital. Write(LED_R, HIGH); digital. Write(LED_G, LOW); digital. Write(LED_B, HIGH); break;

18. 通過按鍵切換 LED 顏色 case Color_B: //藍色 digital. Write(LED_R, HIGH); digital. Write(LED_G, HIGH); digital. Write(LED_B, LOW); break; case Color_RG: //黃色 digital. Write(LED_R, LOW); digital. Write(LED_G, LOW); digital. Write(LED_B, HIGH); break;

18. 通過按鍵切換 LED 顏色 case Color_RB: //紫色 digital. Write(LED_R, LOW); digital. Write(LED_G, HIGH); digital. Write(LED_B, LOW); break; case Color_GB: //青色 digital. Write(LED_R, HIGH); digital. Write(LED_G, LOW); digital. Write(LED_B, LOW); break;

18. 通過按鍵切換 LED 顏色 case Color_RGB: //白色 digital. Write(LED_R, LOW); digital. Write(LED_G, LOW); digital. Write(LED_B, LOW); break; default: break; } }

19. 三彩漸變效果實驗 #define LED_R 3 #define LED_G 5 #define LED_B 6 int PWMValue = 0; void setup() { analog. Write(LED_R, 255); //高電平 255 = 占空比是 100%，IO相當於輸出高電平，紅色LED熄滅 analog. Write(LED_G, 255); //高電平 255 = 占空比是 100%，IO相當於輸出高電平，綠色LED熄滅 analog. Write(LED_B, 255); //高電平 255 = 占空比是 100%，IO相當於輸出高電平，藍色LED熄滅 }

19. 三彩漸變效果實驗 void loop() { int i = 0; PWMValue = 255; for(i = 0 ; i < 255 ; i++) //紅色逐漸變亮 { analog. Write(LED_R, PWMValue--); analog. Write(LED_G, 255); analog. Write(LED_B, 255); delay(10); } PWMValue = 0; for(i = 0 ; i < 255 ; i++) //逐漸變暗 { analog. Write(LED_R, PWMValue++); analog. Write(LED_G, 255); analog. Write(LED_B, 255); delay(10); }

19. 三彩漸變效果實驗 PWMValue = 255; for(i = 0 ; i < 255 ; i++) //綠色逐漸變亮 { analog. Write(LED_R, 255); analog. Write(LED_G, PWMValue--); analog. Write(LED_B, 255); delay(10); } PWMValue = 0; for(i = 0 ; i < 255 ; i++) //逐漸變暗 { analog. Write(LED_R, 255); analog. Write(LED_G, PWMValue++); analog. Write(LED_B, 255); delay(10); }

19. 三彩漸變效果實驗 PWMValue = 255; for(i = 0 ; i < 255 ; i++) //藍色逐漸變亮 { analog. Write(LED_R, 255); analog. Write(LED_G, 255); analog. Write(LED_B, PWMValue--); delay(10); } PWMValue = 0; for(i = 0 ; i < 255 ; i++) //逐漸變暗 { analog. Write(LED_R, 255); analog. Write(LED_G, 255); analog. Write(LED_B, PWMValue++); delay(10); } }

20. 74 HC 595 移位暫存器(Shift Register)實驗

20. 74 HC 595 移位暫存器(Shift Register)實驗 int latch. Pin = 8; int clock. Pin = 12; int data. Pin = 11; //這裡定義了那三個腳 unsigned char table[] = {0 x 01, 0 x 02, 0 x 04, 0 x 08, 0 x 10, 0 x 20, 0 x 40, 0 x 80}; //LED狀態顯示的變數 void setup () { pin. Mode(latch. Pin, OUTPUT); pin. Mode(clock. Pin, OUTPUT); pin. Mode(data. Pin, OUTPUT); //讓三個腳都是輸出狀態 }

20. 74 HC 595 移位暫存器(Shift Register)實驗 void loop() { for(int i=0; i<8; i++) { digital. Write(latch. Pin, LOW); //將ST_CP口上面加低電平讓晶片準備好接收資料 shift. Out(data. Pin, clock. Pin, MSBFIRST, table[i]); //串列資料登錄引腳為data. Pin，時鐘引腳為clock. Pin，執行MSB有限發送，發送資料table[i] digital. Write(latch. Pin, HIGH); //將ST_CP這個針腳恢復到高電平 delay(500); //延時500 ms } }

21. LED點陣實驗 #define H 1 2 #define H 2 7 #define H 3 A 5 #define H 4 5 #define H 5 13 #define H 6 A 4 #define H 7 12 #define H 8 A 2 #define L 1 6 #define L 2 11 #define L 3 10 #define L 4 3 #define L 5 A 3 #define L 6 4 #define L 7 8 #define L 8 9

21. LED點陣實驗 unsigned char table 1[8][8] = //大“心型”的數據 { 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, };

21. LED點陣實驗 unsigned char table 2[8][8] = //小“心型”的數據 { 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, };

21. LED點陣實驗 void setup() { pin. Mode(H 1, OUTPUT); pin. Mode(H 2, OUTPUT); pin. Mode(H 3, OUTPUT); pin. Mode(H 4, OUTPUT); pin. Mode(H 5, OUTPUT); pin. Mode(H 6, OUTPUT); pin. Mode(H 7, OUTPUT); pin. Mode(H 8, OUTPUT); pin. Mode(L 1, OUTPUT); pin. Mode(L 2, OUTPUT); pin. Mode(L 3, OUTPUT); pin. Mode(L 4, OUTPUT); pin. Mode(L 5, OUTPUT); pin. Mode(L 6, OUTPUT); pin. Mode(L 7, OUTPUT); pin. Mode(L 8, OUTPUT); }

21. LED點陣實驗 void Display(unsigned char dat[8][8]) //顯示函數 { digital. Write(L 1, LOW); //選通第一列 digital. Write(H 1, dat[0][0]); digital. Write(H 2, dat[1][0]); digital. Write(H 3, dat[2][0]); digital. Write(H 4, dat[3][0]); digital. Write(H 5, dat[4][0]); digital. Write(H 6, dat[5][0]); digital. Write(H 7, dat[6][0]); digital. Write(H 8, dat[7][0]); delay(1); //延時一小段時間，等待LED被點亮 Clear(); //清空顯示去除餘暉

21. LED點陣實驗 digital. Write(L 2, LOW); //選通第二列 digital. Write(H 1, dat[0][1]); digital. Write(H 2, dat[1][1]); digital. Write(H 3, dat[2][1]); digital. Write(H 4, dat[3][1]); digital. Write(H 5, dat[4][1]); digital. Write(H 6, dat[5][1]); digital. Write(H 7, dat[6][1]); digital. Write(H 8, dat[7][1]); delay(1); Clear();

21. LED點陣實驗 digital. Write(L 3, LOW); //選通第三列 digital. Write(H 1, dat[0][2]); digital. Write(H 2, dat[1][2]); digital. Write(H 3, dat[2][2]); digital. Write(H 4, dat[3][2]); digital. Write(H 5, dat[4][2]); digital. Write(H 6, dat[5][2]); digital. Write(H 7, dat[6][2]); digital. Write(H 8, dat[7][2]); delay(1); Clear();

21. LED點陣實驗 digital. Write(L 4, LOW); //選通第四列 digital. Write(H 1, dat[0][3]); digital. Write(H 2, dat[1][3]); digital. Write(H 3, dat[2][3]); digital. Write(H 4, dat[3][3]); digital. Write(H 5, dat[4][3]); digital. Write(H 6, dat[5][3]); digital. Write(H 7, dat[6][3]); digital. Write(H 8, dat[7][3]); delay(1); Clear();

21. LED點陣實驗 digital. Write(L 5, LOW); //選通第五列 digital. Write(H 1, dat[0][4]); digital. Write(H 2, dat[1][4]); digital. Write(H 3, dat[2][4]); digital. Write(H 4, dat[3][4]); digital. Write(H 5, dat[4][4]); digital. Write(H 6, dat[5][4]); digital. Write(H 7, dat[6][4]); digital. Write(H 8, dat[7][4]); delay(1); Clear();

21. LED點陣實驗 digital. Write(L 6, LOW); //選通第六列 digital. Write(H 1, dat[0][5]); digital. Write(H 2, dat[1][5]); digital. Write(H 3, dat[2][5]); digital. Write(H 4, dat[3][5]); digital. Write(H 5, dat[4][5]); digital. Write(H 6, dat[5][5]); digital. Write(H 7, dat[6][5]); digital. Write(H 8, dat[7][5]); delay(1); Clear();

21. LED點陣實驗 digital. Write(L 7, LOW); //選通第七列 digital. Write(H 1, dat[0][6]); digital. Write(H 2, dat[1][6]); digital. Write(H 3, dat[2][6]); digital. Write(H 4, dat[3][6]); digital. Write(H 5, dat[4][6]); digital. Write(H 6, dat[5][6]); digital. Write(H 7, dat[6][6]); digital. Write(H 8, dat[7][6]); delay(1); Clear();

21. LED點陣實驗 digital. Write(L 8, LOW); //選通第八列 digital. Write(H 1, dat[0][7]); digital. Write(H 2, dat[1][7]); digital. Write(H 3, dat[2][7]); digital. Write(H 4, dat[3][7]); digital. Write(H 5, dat[4][7]); digital. Write(H 6, dat[5][7]); digital. Write(H 7, dat[6][7]); digital. Write(H 8, dat[7][7]); delay(1); Clear(); }

21. LED點陣實驗 void Clear() //清空顯示 { digital. Write(H 1, LOW); digital. Write(H 2, LOW); digital. Write(H 3, LOW); digital. Write(H 4, LOW); digital. Write(H 5, LOW); digital. Write(H 6, LOW); digital. Write(H 7, LOW); digital. Write(H 8, LOW);

21. LED點陣實驗 digital. Write(L 1, HIGH); digital. Write(L 2, HIGH); digital. Write(L 3, HIGH); digital. Write(L 4, HIGH); digital. Write(L 5, HIGH); digital. Write(L 6, HIGH); digital. Write(L 7, HIGH); digital. Write(L 8, HIGH); }

22. 溫濕度感測器 DHT 11 實驗 #include <Arduino. h> #include "DHT 11. h" DHT 11 my. DHT 11(2); void setup() //Arduino程式初始化程式放在這裡，只在開機時候運行一次 { Serial. begin(9600); //設置通訊的串列傳輸速率為 9600 Serial. println("Welcome to use!"); //發送的內容 Serial. println("Ilovemcu. taobao. com"); //發送的內容 }

22. 溫濕度感測器 DHT 11 實驗 void loop() //Arduino程式的主程序部分，迴圈運行內部程式 { my. DHT 11_Read(); //讀取溫濕度值 Serial. print("HUMI = "); Serial. print(my. DHT 11. HUMI_Buffer_Int); Serial. println(" %RH"); Serial. print("TMEP = "); Serial. print(my. DHT 11. TEM_Buffer_Int); Serial. println(" C"); delay(1000); //延時1 s }

23. 超音波測距實驗 #define Trig. Pin 2 #define Echo. Pin 3 float Value_cm; void setup() { Serial. begin(9600); pin. Mode(Trig. Pin, OUTPUT); pin. Mode(Echo. Pin, INPUT); }

1. RFID感應

1. RFID感應

1. RFID感應

1. RFID感應 /* * * All the resources for this project: https: //www. hackster. io/Aritro * Modified by Aritro Mukherjee * * */ #include <SPI. h> #include <MFRC 525. h> #define SS_PIN 10 #define RST_PIN 9 MFRC 522 mfrc 522(SS_PIN, RST_PIN); // Create MFRC 522 instance. void setup() { Serial. begin(9600); // Initiate a serial communication SPI. begin(); // Initiate SPI bus mfrc 525. PCD_Init(); // Initiate MFRC 522 Serial. println("Approximate your card to the reader. . . "); Serial. println(); } void loop()

2. 使用 4 X 4鍵盤 #include <Keypad. h> const byte num. Rows= 4; //number of rows on the keypad const byte num. Cols= 4; //number of columns on the keypad /*keymap defines the key pressed according to the row and columns just as appears on the keypad*/ char keymap[num. Rows][num. Cols]= { {1, 2, 3, A}, {4, 5, 6, B}, {7, 8, 9, C}, {*, 0, #, D} }; //Code that shows the keypad connections to the arduino terminals byte row. Pins[num. Rows] = {9, 8, 7, 6}; //Rows 0 to 3 byte col. Pins[num. Cols]= {5, 4, 3, 2}; //Columns 0 to 3 //initializes an instance of the Keypad class Keypad my. Keypad= Keypad(make. Keymap(keymap), row. Pins, col. Pins, num. Rows, num. Cols);

2. 使用 4 X 4鍵盤 void setup() { Serial. begin(9600); } //If key is pressed, this key is stored in keypressed variable //If key is not equal to NO_KEY, then this key is printed out //if count=17, then count is reset back to 0 (this means no key is pressed during the whole keypad scan process void loop() { char keypressed = my. Keypad. get. Key(); if (keypressed != NO_KEY) { Serial. println(keypressed); } }

3. 模擬擲骰子 // set to 1 if we're debugging #define DEBUG 0 // 6 consecutive digital pins for the LEDs int first = 2; int second = 3; int third = 4; int fourth = 5; int fifth = 6; int sixth = 7; // pin for the button switch int button = 12; // value to check state of button switch int pressed = 0;

3. 模擬擲骰子 void setup() { // set all LED pins to OUTPUT for (int i=first; i<=sixth; i++) { pin. Mode(i, OUTPUT); } // set buttin pin to INPUT pin. Mode(button, INPUT); // initialize random seed by noise from analog pin 0 (should be unconnected) random. Seed(analog. Read(0)); // if we're debugging, connect to serial #ifdef DEBUG Serial. begin(9600); #endif }

3. 模擬擲骰子 void build. Up. Tension() { // light LEDs from left to right and back to build up tension // while waiting for the dice to be thrown // left to right for (int i=first; i<=sixth; i++) { if (i!=first) { digital. Write(i-1, LOW); } digital. Write(i, HIGH); delay(100); } // right to left for (int i=sixth; i>=first; i--) { if (i!=sixth) { digital. Write(i+1, LOW); } digital. Write(i, HIGH); delay(100); } }

3. 模擬擲骰子 void show. Number(int number) { digital. Write(first, HIGH); if (number >= 2) { digital. Write(second, HIGH); } if (number >= 3) { digital. Write(third, HIGH); } if (number >= 4) { digital. Write(fourth, HIGH); } if (number >= 5) { digital. Write(fifth, HIGH); } if (number == 6) { digital. Write(sixth, HIGH); } }

3. 模擬擲骰子 int throw. Dice() { // get a random number in the range [1, 6] int rand. Number = random(1, 7); #ifdef DEBUG Serial. println(rand. Number); #endif return rand. Number; } void set. All. LEDs(int value) { for (int i=first; i<=sixth; i++) { digital. Write(i, value); } }

3. 模擬擲骰子 void loop() { // if button is pressed - throw the dice pressed = digital. Read(button); if (pressed == HIGH) { // remove previous number set. All. LEDs(LOW); build. Up. Tension(); int thrown. Number = throw. Dice(); show. Number(thrown. Number); } }

4. 超音波測距離並顯示在LCD上 /*LCD circuit: * LCD RS pin to digital pin 12 * LCD Enable pin to digital pin 11 * LCD D 4 pin to digital pin 5 * LCD D 5 pin to digital pin 4 * LCD D 6 pin to digital pin 3 * LCD D 7 pin to digital pin 2 * LCD R/W pin to ground * LCD VSS pin to ground * LCD VCC pin to 5 V * 10 K resistor: * ends to +5 V and ground * wiper to LCD VO pin (pin 3)*/

4. 超音波測距離並顯示在LCD上 #include<Liquid. Crystal. h> Liquid. Crystal lcd(12, 11, 5, 4, 3, 2); //Interface pins of the LCD const int trig_pin=8; const int echo_pin=9; long distance, duration; void setup() { lcd. begin(16, 2); lcd. set. Cursor(0, 0); //set the cursor to column 0 and line 0 pin. Mode(8, OUTPUT); pin. Mode(9, INPUT); }

4. 超音波測距離並顯示在LCD上 void loop() { digital. Write(8, HIGH); delay. Microseconds(20); digital. Write(8, LOW); delay. Microseconds(20); duration = pulse. In(echo_pin, HIGH); //To receive the reflected signal. distance= duration*3. 034/2; lcd. set. Cursor(0, 1); //set the cursor to column 0 and line 1 lcd. print(distance); lcd. print("cm"); delay(100); }

5. 溫控風扇 #include "DHT. h" #include "Liquid. Crystal. h" Liquid. Crystal lcd(7, 8, 9, 10, 11 , 12); #define DHTPIN 6 #define DHTTYPE DHT 22 DHT sensor(DHTPIN, DHTTYPE); int relay_pin = 9; void setup() { lcd. begin(16, 2); sensor. begin(); pin. Mode(relay_pin, OUTPUT); digital. Write(relay_pin, HIGH); }

5. 溫控風扇 void loop() { lcd. clear(); float t = sensor. read. Temperature(); //reading the temperature from the sensor // Checking if the sensor is sending values or not if (isnan(t)) { lcd. print("Failed"); delay(1000); return; } lcd. set. Cursor(0, 0); lcd. print("Temp: "); lcd. print(t); lcd. print(" C");

5. 溫控風扇 if (t > 35) { digital. Write(relay_pin, LOW); lcd. set. Cursor(0, 1); lcd. print("Fan is ON "); delay(10); } else { digital. Write(relay_pin, HIGH); lcd. set. Cursor(0, 1); lcd. print("Fan is OFF "); } delay(2000); }

6. 紅外線感應器自動開燈 int relay = 4; //// choose the pin for the RELAY int led. Pin = 13; // choose the pin for the LED int input. Pin = 2; // choose the input pin (for PIR sensor) int pir. State = LOW; // we start, assuming no motion detected int val = 0; // variable for reading the pin status void setup() { pin. Mode(led. Pin, OUTPUT); // declare LED as output pin. Mode(relay, OUTPUT); //declare RELAY as output pin. Mode(input. Pin, INPUT); // declare sensor as input Serial. begin(9600); }

6. 紅外線感應器自動開燈 void loop() { val = digital. Read(input. Pin); // read input value if (val == HIGH) { // check if the input is HIGH digital. Write(led. Pin, LOW); // turn LED ON digital. Write(relay, LOW); // turn RELAY ON if (pir. State == LOW) { // we have just turned on Serial. println("Motion detected!"); // We only want to print on the output change, not state pir. State = HIGH; } }

6. 紅外線感應器自動開燈 else { digital. Write(led. Pin, HIGH); // turn LED OFF digital. Write(relay, HIGH); // turn RELAY OFF if (pir. State == HIGH) { // we have just turned of Serial. println("Motion ended!"); // We only want to print on the output change, not state pir. State = LOW; } } }

7. LCD鬧鐘 #include <DS 3234. h> #include <Wire. h> #include <Liquid. Crystal. h> Liquid. Crystal lcd(2, 3, 4, 5, 6, 7); DS 3231 rtc(SDA, SCL); Time t; #define buz 11 int Hor; int Min; int Sec;

7. LCD鬧鐘 void setup() { Wire. begin(); rtc. begin(); Serial. begin(9600); pin. Mode(buz, OUTPUT); lcd. begin(16, 2); lcd. set. Cursor(0, 0); lcd. print("DIYHacking. com"); lcd. set. Cursor(0, 1); lcd. print("Arduino Alarm "); // The following lines can be uncommented to set the date and time //rtc. set. DOW(WEDNESDAY); // Set Day-of-Week to SUNDAY //rtc. set. Time(12, 0, 0); // Set the time to 12: 00 (24 hr format) //rtc. set. Date(1, 1, 2014); // Set the date to January 1 st, 2014 delay(2000); }

7. LCD鬧鐘 void loop() { t = rtc. get. Time(); Hor = t. hour; Min = t. min; Sec = t. sec; lcd. set. Cursor(0, 0); lcd. print("Time: "); lcd. print(rtc. get. Time. Str()); lcd. set. Cursor(0, 1); lcd. print("Date: "); lcd. print(rtc. get. Date. Str());

7. LCD鬧鐘 if( Hor == 11 && (Min == 32 || Min == 33)) //Comparing the current time with the Alarm time { Buzzer(); lcd. clear(); lcd. print("Alarm ON"); lcd. set. Cursor(0, 1); lcd. print("Alarming"); Buzzer(); } delay(1000); }

7. LCD鬧鐘 void Buzzer() { digital. Write(buz, HIGH); delay(500); digital. Write(buz, LOW); delay(500); }

The initial password is 1237.

8. 無鑰匙門鎖系統 #include <Keypad. h> #include<Liquid. Crystal. h> #include<EEPROM. h> Liquid. Crystal liquid_crystal_display(9, 8, 7, 6, 5, 4, ); char password[4]; char initial_password[4], new_password[4]; int i=0; int relay_pin = 10; char key_pressed=0; const byte rows = 4; const byte columns = 4; char hexa. Keys[rows][columns] = { {'1', '2', '3', 'A'}, {'4', '5', '6', 'B'}, {'7', '8', '9', 'C'}, {'*', '0', '#', 'D'} }; byte row_pins[rows] = {A 0, A 1, A 2, A 3}; byte column_pins[columns] = {A 4, A 5, 3, 2}; Keypad keypad_key = Keypad( make. Keymap(hexa. Keys), row_pins, column_pins, rows, columns);

8. 無鑰匙門鎖系統 void setup() { pin. Mode(relay_pin, OUTPUT); liquid_crystal_display. begin(16, 2); liquid_crystal_display. print(" DIYhacking. com"); liquid_crystal_display. set. Cursor(0, 1); liquid_crystal_display. print("Electronic Lock "); delay(2000); liquid_crystal_display. clear(); liquid_crystal_display. print("Enter Password"); liquid_crystal_display. set. Cursor(0, 1); initialpassword(); }

8. 無鑰匙門鎖系統 void loop() { digital. Write(relay_pin, HIGH); key_pressed = keypad_key. get. Key(); if(key_pressed=='#') change(); if (key_pressed) { password[i++]=key_pressed; liquid_crystal_display. print(key_pressed); } if(i==4) { delay(200); for(int j=0; j<4; j++) initial_password[j]=EEPROM. read(j);

8. 無鑰匙門鎖系統 if(!(strncmp(password, initial_password, 4))) { liquid_crystal_display. clear(); liquid_crystal_display. print("Pass Accepted"); digital. Write(relay_pin, LOW); delay(2000); liquid_crystal_display. set. Cursor(0, 1); liquid_crystal_display. print("Pres # to change"); delay(2000); liquid_crystal_display. clear(); liquid_crystal_display. print("Enter Password: "); liquid_crystal_display. set. Cursor(0, 1); i=0; }

8. 無鑰匙門鎖系統 else { digital. Write(relay_pin, HIGH); liquid_crystal_display. clear(); liquid_crystal_display. print("Wrong Password"); liquid_crystal_display. set. Cursor(0, 1); liquid_crystal_display. print("Pres # to Change"); delay(2000); liquid_crystal_display. clear(); liquid_crystal_display. print("Enter Password"); liquid_crystal_display. set. Cursor(0, 1); i=0; } } }

8. 無鑰匙門鎖系統 void change() { int j=0; liquid_crystal_display. clear(); liquid_crystal_display. print("Current Password"); liquid_crystal_display. set. Cursor(0, 1); while(j<4) { char key=keypad_key. get. Key(); if(key) { new_password[j++]=key; liquid_crystal_display. print(key); } key=0; } delay(500);

8. 無鑰匙門鎖系統 if((strncmp(new_password, initial_password, 4))) { liquid_crystal_display. clear(); liquid_crystal_display. print("Wrong Password"); liquid_crystal_display. set. Cursor(0, 1); liquid_crystal_display. print("Try Again"); delay(1000); } else { j=0; liquid_crystal_display. clear(); liquid_crystal_display. print("New Password: "); liquid_crystal_display. set. Cursor(0, 1);

8. 無鑰匙門鎖系統 while(j<4) { char key=keypad_key. get. Key(); if(key) { initial_password[j]=key; liquid_crystal_display. print(key); EEPROM. write(j, key); j++; } } liquid_crystal_display. print("Pass Changed"); delay(1000); }

8. 無鑰匙門鎖系統 liquid_crystal_display. clear(); liquid_crystal_display. print("Enter Password"); liquid_crystal_display. set. Cursor(0, 1); key_pressed=0; } void initialpassword(){ for(int j=0; j<4; j++) EEPROM. write(j, j+49); for(int j=0; j<4; j++) initial_password[j]=EEPROM. read(j); }

9. 遙控撥放音樂 #include <Liquid. Crystal. h> #include <IRremote. h> #include <New. Tone. h> #include <avr/io. h> #include <avr/wdt. h> #define Reset_AVR() wdt_enable(WDTO_30 MS); while(1) {} #define buzzer 11 Liquid. Crystal lcd(9, 8, 7, 6, 5, 4); int result; int RECV_PIN=2; IRrecv irrecv(RECV_PIN); decode_results; void setup() { Serial. begin(9600); lcd. begin(16, 2); lcd. set. Cursor(0, 0); lcd. print("-----Choose-----");