通用遙控器測試

本文將測試近期製作的遙控器及接收器之間無線數據傳輸。

實現功能：

遙控器端按下按鍵，LCD顯示相應的鍵名，同時發送鍵值到接收器；

接收器在接到鍵值後，相應在其LCD上顯示鍵名。

遙控器和接收器合影：

發射器及按鍵說明

接收器： 

 

 

發射器代碼如下：

//LCD控制的頭文件
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
//無線需要的頭文件
#include <SPI.h>
#include <RF24.h>
#include <RF24_config.h>
#include <nRF24L01.h>
//旋轉編碼器接線
#define clk A2
#define data  A3
#define sw 8
#define A 2
#define B 3
#define C 4
#define D 5
#define E 6
#define F 7
#define X A0
#define Y A1

//無線接口定義如下：
/*nRF24L01   Arduino UNO
VCC        <->        3.3V
GND        <->        GND
CE        <->         D9
CSN        <->        D10
MOSI<->               D11
MISO<->               D12
SCK        <->        D13
IRQ        <->        不接
*/
//按鍵定義如下
/*
• Button A – Connects to D2
• Button B – Connects to D3
• Button C – Connects to D4
• Button D – Connects to D5
• Button E – Connects to D6
• Button F – Connects to D7
*/
//LCD接口定義如下
/*
• GND – Connects to GND
• VCC – Connects to 5V
• SDA – Connects to A4
• SCL – Connects to A5
*/
//Joystick接口定義如下
/*
• X axis – Connects to A0
• Y axis – Connects to A1
• SW2    – Connects to D8
*/
volatile boolean TurnDetected;//編碼器檢測標識
volatile boolean up;//編碼器檢測

int State;
int counter;
int LastState;

LiquidCrystal_I2C lcd(0x27, 16, 2);
RF24 radio(9, 10); // CE, CSN
const byte address[6] = "00001";//無線發射器配碼，需要接收及發射使用相同的六位字符

void setup() {
  int x,y;
  int z=1;
 //LCD 初始化
  lcd.init();
  lcd.backlight();
  lcd.begin(16, 2);
 //串口初始化，用於測試，成功後去除
  Serial.begin(9600);
 //旋轉編碼器接口定義
  pinMode(clk, INPUT);
  pinMode(data, INPUT);
  pinMode(sw, INPUT);
  pinMode(A, INPUT);
  pinMode(B, INPUT);
  pinMode(C, INPUT);
  pinMode(D, INPUT);
  pinMode(E, INPUT);
  pinMode(F, INPUT);
  pinMode(A0, INPUT);
  pinMode(A1, INPUT);

 //變量定義

  LastState=digitalRead(clk);//旋轉編碼器變化檢測標識
  //初始界面顯示內容
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("    WELCOME!    ");
  delay(1000);
  lcd.setCursor(0,0);
  lcd.print("Wireless Control");
  lcd.setCursor(0,1);  
  lcd.print(" Design By Wen ");
  delay(2000);
  
  //復位後，顯示準備就緒內容
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("     READY!     ");
  delay(1000);
  lcd.clear();
  //無線發射器初始化
  radio.begin();
  radio.openWritingPipe(address);
  radio.setPALevel(RF24_PA_MIN);
  radio.stopListening();
  
 }
//旋轉編碼器檢測函數
int Rotary_encoder()
{
State = digitalRead(clk); // 讀取CLK的狀態
   // 如果現在的狀態和之前的不一樣，說明旋鈕轉了一格
   if (State != LastState){  
      TurnDetected = true;
      //delay (100);
       if (digitalRead(data) != State) { //如果data的狀態和clock的狀態不一樣，說明編碼器順時針旋轉
       counter ++;
       return 1;
        //delay (100);
     } else {   //如果data的狀態和clock的狀態一樣，說明編碼器逆時針旋轉
       counter --;
       return 0;
        //delay (100);
     }
     //以下代碼用於測試編碼器是否正常工作，最終需要刪掉，避免佔用資源和增加功耗
     Serial.print("Position: ");
     Serial.println(counter);
   } 
   LastState = State; //更新編碼器標識狀態 
}


void loop() {
  
     int x=49;
     int y=49;
     int z=1;
  //const char tex[] = "Hello World";
 // radio.write(&tex, sizeof(tex));
  Serial.println("finsh sending 'Hello World'");
    
  up=Rotary_encoder();//檢測旋轉編碼器的變化

  if (TurnDetected) {  // 編碼器有旋轉
     // Rotary_encoder();
    if (TurnDetected) {
      lcd.clear();
     // up=Rotary_encoder();
      if (up) {//順時針操作
        //arrow = !arrow;
        Serial.println("clockwise");//串口輸出按鍵操作
        const char text[] = "clockwise";
        radio.write(&text, sizeof(text));//無線發射出去按鍵操作
        Serial.println("finsh sending 'clockwise'");//串口輸出完成無線發送
        lcd.setCursor(1, 0);//LCD顯示
        lcd.print("clockwise");
        lcd.setCursor(1, 1);
        lcd.print("FINISH SENDING");
        //delay(100);
        
      }
      else {//逆時針操作
        //arrow = !arrow;
        Serial.println("anticlockwise");//串口輸出按鍵操作
        const char text[] = "anticlockwise";
        radio.write(&text, sizeof(text));//無線發射出去按鍵操作
        Serial.println("finsh sending 'anticlockwise'");//串口輸出完成無線發送
        lcd.setCursor(1, 0);//LCD顯示
        lcd.print("anticlockwise");
        lcd.setCursor(1, 1);
        lcd.print("FINISH SENDING");
        //delay(100);
      }
      TurnDetected = false;
    }
  }


  if (!(digitalRead(sw))) {
    delay(100);
     while (!(digitalRead(sw))) {//編碼器按鍵按下
    lcd.clear();
        Serial.println("SW PRESSED");//串口輸出按鍵操作
        const char text[] = "SW PRESSED";
        radio.write(&text, sizeof(text));//無線發射出去按鍵操作
        Serial.println("finsh sending 'SW PRESSED'");//串口輸出完成無線發送
        lcd.setCursor(1, 0);//LCD顯示
        lcd.print("SW PRESSED");
        lcd.setCursor(1, 1);
        lcd.print("FINISH SENDING");
        z=1;
       // delay(100);
    
  }
  }

   /* if (!((analogRead(X)==49)&&(analogRead(Y)==49)) ){
    //搖桿變化
          delay(100);
     while (!((analogRead(X)==49)&&(analogRead(Y)==49)) ){
   
        x=analogRead(X); 
        y=analogRead(Y); 
        z=digitalRead(sw); 
        
        x=map(x,0,679,0,99);
        y=map(y,0,679,0,99);
        
        Serial.println("Joystick changed");//串口輸出按鍵操作
        Serial.print("X:"); 
        Serial.print(x); 
        Serial.print(":Y:"); 
        Serial.print(y);
        Serial.print(":B:"); 
        Serial.print(z);
        lcd.clear();

        const char text[] = "X";
        radio.write(&text, sizeof(text));//無線發射出去按鍵操作
        Serial.println("finsh sending 'X'");//串口輸出完成無線發送
        radio.write(x, sizeof(x));//無線發射出去按鍵操作
        Serial.println("finsh sending value of x");//串口輸出完成無線發送
        
        const char text1[] = "Y";
        radio.write(&text1, sizeof(text1));//無線發射出去按鍵操作
        Serial.println("finsh sending 'Y'");//串口輸出完成無線發送
        radio.write(y, sizeof(y));//無線發射出去按鍵操作
        Serial.println("finsh sending value of y");//串口輸出完成無線發送

        const char text2[] = "Z";
        radio.write(&text2, sizeof(text2));//無線發射出去按鍵操作
        Serial.println("finsh sending 'B'");//串口輸出完成無線發送
        radio.write(z, sizeof(z));//無線發射出去按鍵操作
        Serial.println("finsh sending value of z");//串口輸出完成無線發送
        
        lcd.setCursor(1, 0);//LCD顯示
        lcd.print("X:");
         lcd.setCursor(3, 0);
         lcd.print(x);
         lcd.setCursor(6, 0);
         lcd.print(":Y:");
         lcd.setCursor(9, 0);
         lcd.print(y);
         lcd.setCursor(12, 0);
         lcd.print(":B:");
         lcd.setCursor(15, 0);
         lcd.print(z);
        lcd.setCursor(1, 1);
        lcd.print("FINISH SENDING");
        delay(100);
    
  }
    }
*/
  if (!(digitalRead(A))) {//編碼器按鍵按下
    delay(100);
     while (!(digitalRead(A))) {
    lcd.clear();
        Serial.println("A PRESSED");//串口輸出按鍵操作
        const char text[] = "A PRESSED";
        radio.write(&text, sizeof(text));//無線發射出去按鍵操作
        Serial.println("finsh sending 'A PRESSED'");//串口輸出完成無線發送
        lcd.setCursor(1, 0);//LCD顯示
        lcd.print("A PRESSED");
        lcd.setCursor(1, 1);
        lcd.print("FINISH SENDING");
        //delay(100);
    
  }
  }
 
  if (!(digitalRead(B))) {//編碼器按鍵按下
        delay(100);
     while (!(digitalRead(B))) {
        lcd.clear();
        Serial.println("B PRESSED");//串口輸出按鍵操作
        const char text[] = "B PRESSED";
        radio.write(&text, sizeof(text));//無線發射出去按鍵操作
        Serial.println("finsh sending 'B PRESSED'");//串口輸出完成無線發送
        lcd.setCursor(1, 0);//LCD顯示
        lcd.print("B PRESSED");
        lcd.setCursor(1, 1);
        lcd.print("FINISH SENDING");
        //delay(100);
    
  }
  }
   if (!(digitalRead(C))) {//編碼器按鍵按下
        delay(100);
     while (!(digitalRead(C))) {
        lcd.clear();
        Serial.println("C PRESSED");//串口輸出按鍵操作
        const char text[] = "C PRESSED";
        radio.write(&text, sizeof(text));//無線發射出去按鍵操作
        Serial.println("finsh sending 'C PRESSED'");//串口輸出完成無線發送
        lcd.setCursor(1, 0);//LCD顯示
        lcd.print("C PRESSED");
        lcd.setCursor(1, 1);
        lcd.print("FINISH SENDING");
        //delay(100);
    
  }
   }
   if (!(digitalRead(D))) {//編碼器按鍵按下
        delay(100);
     while (!(digitalRead(D))) {
        lcd.clear();
        Serial.println("D PRESSED");//串口輸出按鍵操作
        const char text[] = "D PRESSED";
        radio.write(&text, sizeof(text));//無線發射出去按鍵操作
        Serial.println("finsh sending 'D PRESSED'");//串口輸出完成無線發送
        lcd.setCursor(1, 0);//LCD顯示
        lcd.print("D PRESSED");
        lcd.setCursor(1, 1);
        lcd.print("FINISH SENDING");
        //delay(100);
    
  }
   }
   if (!(digitalRead(E))) {//編碼器按鍵按下
        delay(100);
     while (!(digitalRead(E))) {
        lcd.clear();
        Serial.println("E PRESSED");//串口輸出按鍵操作
        const char text[] = "E PRESSED";
        radio.write(&text, sizeof(text));//無線發射出去按鍵操作
        Serial.println("finsh sending 'E PRESSED'");//串口輸出完成無線發送
        lcd.setCursor(1, 0);//LCD顯示
        lcd.print("E PRESSED");
        lcd.setCursor(1, 1);
        lcd.print("FINISH SENDING");
        //delay(100);
    
  }
   }
   if (!(digitalRead(F))) {//編碼器按鍵按下
        delay(100);
     while (!(digitalRead(F))) {
        lcd.clear();
        Serial.println("F PRESSED");//串口輸出按鍵操作
        const char text[] = "F PRESSED";
        radio.write(&text, sizeof(text));//無線發射出去按鍵操作
        Serial.println("finsh sending 'F PRESSED'");//串口輸出完成無線發送
        lcd.setCursor(1, 0);//LCD顯示
        lcd.print("F PRESSED");
        lcd.setCursor(1, 1);
        lcd.print("FINISH SENDING");
        //delay(100);
    
  }
   }
}

接收器代碼如下：

#include <Keyboard.h>


//LCD控制的頭文件
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
//無線需要的頭文件
#include <SPI.h>
#include <RF24.h>
#include <RF24_config.h>
#include <nRF24L01.h>
#include <string.h>
//旋轉編碼器接線


//無線接口定義如下：
/*nRF24L01   Arduino UNO
VCC        <->        3.3V
GND        <->        GND
CE        <->         D9
CSN        <->        D10
MOSI<->               D11
MISO<->               D12
SCK        <->        D13
IRQ        <->        不接
*/


//LCD接口定義如下
/*
• GND – Connects to GND
• VCC – Connects to 5V
• SDA – Connects to A4
• SCL – Connects to A5
*/




LiquidCrystal_I2C lcd(0x27, 16, 2);
RF24 radio(9, 10); // CE, CSN
const byte address[6] = "00001";//無線發射器配碼，需要接收及發射使用相同的六位字符

void setup() {
  int x,y;
  int z=1;
  //無線發射器初始化
  radio.begin();
  radio.openReadingPipe(0, address);
  radio.setPALevel(RF24_PA_MIN);
  radio.startListening();
 //LCD 初始化
  lcd.init();
  lcd.backlight();
  lcd.begin(16, 2);
 //串口初始化，用於測試，成功後去除
  Serial.begin(9600);
char oldtext[]="";

 //變量定義


  //初始界面顯示內容
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("    WELCOME!    ");
  delay(1000);
  lcd.setCursor(0,0);
  lcd.print("Wireless Control");
  lcd.setCursor(0,1);  
  lcd.print(" Design By Wen ");
  delay(2000);
  
  //復位後，顯示準備就緒內容
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("     READY!     ");
  delay(1000);
  lcd.clear();


  
 }



void loop() {
  
    if (radio.available()) {
    char text[32] = "";
    char oldtext[32]="old";
    radio.read(&text, sizeof(text));
    lcd.clear();
    lcd.setCursor(0, 0);//LCD顯示
    lcd.print("   LISTENING");
  //  lcd.setCursor(0, 1);
 //   lcd.print(text);
    //delay(500);
    
    //lcd.clear();
    lcd.setCursor(0, 0);//LCD顯示
    lcd.print("   LISTENING");
    //lcd.setCursor(4, 1);
    //lcd.print("RCEIVED");
   // Serial.println(text);
    //Serial.println("Received");
    //delay(500);*/

    if(strcmp(text,"clockwise")==0&&strcmp(text,oldtext)!=0){
        lcd.clear();
        lcd.setCursor(0, 0);//LCD顯示
        lcd.print("   LISTENING");
        lcd.setCursor(0, 1);
        lcd.print("  clockwise");
        //delay(1000);
       // Serial.print("Received:");
        //Serial.println(text);
        //delay(100);
        strcpy(oldtext,text);
      }


     if(strcmp(text,"anticlockwise")==0&&strcmp(text,oldtext)!=0){
        lcd.clear();
        lcd.setCursor(0, 0);//LCD顯示
        lcd.print("   LISTENING");
        lcd.setCursor(0, 1);
        lcd.print("anticlockwise");
        //delay(1000);
       // Serial.print("Received:");
       // Serial.println(text);
        //delay(100);
        strcpy(oldtext,text);
      }

     if(strcmp(text,"SW PRESSED")==0&&strcmp(text,oldtext)!=0){
        lcd.clear();
        lcd.setCursor(0, 0);//LCD顯示
        lcd.print("   LISTENING");
        lcd.setCursor(0, 1);
        lcd.print("  SW PRESSED");
        //delay(1000);
        //Serial.print("Received:");
        //Serial.println(text);
        //delay(100);
        strcpy(oldtext,text);
      }
      
    if(strcmp(text,"A PRESSED")==0&&strcmp(text,oldtext)!=0){
        lcd.clear();
        lcd.setCursor(0, 0);//LCD顯示
        lcd.print("   LISTENING");
        lcd.setCursor(0, 1);
        lcd.print("   A PRESSED");
        //delay(1000);
       // Serial.print("Received:");
        //Serial.println(text);
        //delay(100);
        strcpy(oldtext,text);
      }
     if(strcmp(text,"B PRESSED")==0&&strcmp(text,oldtext)!=0){
        lcd.clear();
        lcd.setCursor(0, 0);//LCD顯示
        lcd.print("   LISTENING");
        lcd.setCursor(0, 1);
        lcd.print("   B PRESSED");
        //delay(1000);
        //Serial.print("Received:");
        //Serial.println(text);
        //delay(100);
        strcpy(oldtext,text);
      }
      if(strcmp(text,"C PRESSED")==0&&strcmp(text,oldtext)!=0){
        lcd.clear();
        lcd.setCursor(0, 0);//LCD顯示
        lcd.print("   LISTENING");
        lcd.setCursor(0, 1);
        lcd.print("   C PRESSED");
        //delay(1000);
        //Serial.print("Received:");
        //Serial.println(text);
        //delay(100);
        strcpy(oldtext,text);
      }

      if(strcmp(text,"D PRESSED")==0&&strcmp(text,oldtext)!=0){
        lcd.clear();
        lcd.setCursor(0, 0);//LCD顯示
        lcd.print("   LISTENING");
        lcd.setCursor(0, 1);
        lcd.print("   D PRESSED");
        //delay(1000);
        //Serial.print("Received:");
        //Serial.println(text);
        //delay(100);
        strcpy(oldtext,text);
      }
     if(strcmp(text,"E PRESSED")==0&&strcmp(text,oldtext)!=0){
        lcd.clear();
        lcd.setCursor(0, 0);//LCD顯示
        lcd.print("   LISTENING");
        lcd.setCursor(0, 1);
        lcd.print("   E PRESSED");
        //delay(1000);
        //Serial.print("Received:");
        //Serial.println(text);
        //delay(100);
        strcpy(oldtext,text);
      }
       if(strcmp(text,"F PRESSED")==0&&strcmp(text,oldtext)!=0){
        lcd.clear();
        lcd.setCursor(0, 0);//LCD顯示
        lcd.print("   LISTENING");
        lcd.setCursor(0, 1);
        lcd.print("   F PRESSED");
        //delay(1000);
        //Serial.print("Received:");
        //Serial.println(text);
        //delay(100);
        strcpy(oldtext,text);
      }
      if(strcmp(text,"X")==0&&strcmp(text,oldtext)!=0){
        
          if (radio.available()) {
            char value[32] = "";
            radio.read(&value, sizeof(value));
            lcd.clear();
            lcd.setCursor(0, 0);//LCD顯示
            lcd.print("   LISTENING");
            lcd.setCursor(0, 1);
            lcd.print("X:");
            lcd.setCursor(2, 1);
            lcd.print(value);
            //delay(500)
            strcpy(oldtext,text);
           }
      }
       if(strcmp(text,"Y")==0&&strcmp(text,oldtext)!=0){
        
          if (radio.available()) {
            char value[32] = "";
            radio.read(&value, sizeof(value));
            
            lcd.setCursor(0, 0);//LCD顯示
            lcd.print("   LISTENING");
            lcd.setCursor(5, 1);
            lcd.print(":Y:");
            lcd.setCursor(8, 1);
            lcd.print(value);
            //delay(500)
            strcpy(oldtext,text);
           }
       }
        if(strcmp(text,"Z")==0&&strcmp(text,oldtext)!=0){
        
          if (radio.available()) {
            char value[32] = "";
            radio.read(&value, sizeof(value));
            
            lcd.setCursor(0, 0);//LCD顯示
            lcd.print("   LISTENING");
            lcd.setCursor(11, 1);
            lcd.print(":B:");
            lcd.setCursor(14, 1);
            lcd.print(value);
            //delay(1000);
            strcpy(oldtext,text);
           }
           
        }
 
}
/*else{
            char text[32] = "  GET NOTHING";
            char oldtext[32]="";
            lcd.setCursor(0, 0);//LCD顯示
            lcd.print("   LISTENING");
            lcd.setCursor(0, 1);
            lcd.print(text);

 } */
  }

目前可以實現按鍵的傳輸，但是仍然有兩個問題需要解決：

1 旋轉編碼器旋轉識別總是出錯；

2 Joystick搖桿值的顯示和傳輸存在問題；

在完成最終的作品前這兩個問題必須解決。