读取AD模拟分量

 
//EEPROM数据保存----------------------
#include <EEPROM.h>
#define EEPROM_write(address, p) {int i = 0; byte *pp = (byte*)&(p);for(; i < sizeof(p); i++) EEPROM.write(address+i, pp[i]);}
#define EEPROM_read(address, p)  {int i = 0; byte *pp = (byte*)&(p);for(; i < sizeof(p); i++) pp[i]=EEPROM.read(address+i);}
// EEPROM_write(0, value);
// EEPROM_read(0,getValue);
unsigned long incomingByte = 0;// 定义无符号长整数型变量incomingByte初始值为0
//--------------------------------------


//AD ---------------------------------
int keyboardPin = A1;    //模拟口0
int keyboardValue = 0;   // 取得键AD模拟分量
//--------------------------------------

 void setup() {
   //通信波特率
   Serial.begin(9600); 
 }


 void loop() {

   keyboardValue = analogRead(keyboardPin); // 读出端口AD模拟分量
   Serial.println(keyboardValue);      // 串口打印
   
   //加
   if ((keyboardValue >50) && (keyboardValue <200))  {incomingByte = incomingByte+1;}
   //减
   if ((keyboardValue >400) && (keyboardValue < 800)){incomingByte = incomingByte-1;}  
   
   EEPROM_write(0,incomingByte)   //把incomingByte变量从0地址位开始写入EEPROM
   
   EEPROM_read(0,incomingByte)    //把incomingByte变量从0地址位开始读出EEPROM
   Serial.println(incomingByte);
   Serial.println("//--------------------------------");
   
   delay(1000);                  

 }