arduino+STC89C52RC+nRF24L01制作遠(yuǎn)程測溫系統(tǒng)

以下是其發(fā)送和接受的源代碼,供有意向的人使用:

STC89C52RC發(fā)送代碼#include reg52.h>#include intrins.h>typedef unsigned char uchar;typedef unsigned char uint;//****************************************IO端口定義sbit  MISO =P1^2;sbit  MOSI =P3^2;sbit SCK     =P1^6;sbit CE     =P1^5;sbit CSN  =P1^7;sbit IRQ  =P1^3;　　　　//實(shí)際上該端口并未使用//*****************************************DS1820端口設(shè)置sbit      DQ=P2^7   ;//************************************數(shù)碼管位選sbit led3=P2^0;sbit led2=P2^1;sbit led1=P2^2;sbit led0=P2^3;//***********************************數(shù)碼管0-9編碼uchar seg[10]=

{0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};          

//0~9段碼(采用共陰四位數(shù)碼管)uchar seg1[10]={0xBF,0x86,0xcD4,0xCF,0xE6,0xED,0xFD,0x87,0xFF,0xEF}; 

//加上小數(shù)點(diǎn)點(diǎn)后的段碼uchar data temp_data[2]={0x00,0x00};          //溫度采集數(shù)據(jù)緩沖區(qū)uchar display[7];               //顯示緩沖區(qū)//uint  bdata sta;       //NRF24L01狀態(tài)標(biāo)志sbit RX_DR =sta^6;    sbit TX_DS =sta^5;sbit MAX_RT =sta^4;//******NRF24L01#define TX_ADR_WIDTH    5    // 本機(jī)地址寬度設(shè)置#define RX_ADR_WIDTH    5    // 接收方地址寬度設(shè)置#define TX_PLOAD_WIDTH  16   // 16 字節(jié)數(shù)據(jù)長度#define RX_PLOAD_WIDTH  16  // 16 字節(jié)數(shù)據(jù)長度uint const TX_ADDRESS[TX_ADR_WIDTH]= {0x34,0x43,0x10,0x10,0x01}; //本地地址uint const RX_ADDRESS[RX_ADR_WIDTH]= {0x34,0x43,0x10,0x10,0x01}; //接收地址//*****************************NRF24L01寄存器指令，詳細(xì)請對照，Page18#define READ_REG        0x00   // 讀寄存器指令#define WRITE_REG       0x20  // 寫寄存器指令#define RD_RX_PLOAD     0x61   // 讀取接收數(shù)據(jù)指令#define WR_TX_PLOAD     0xA0   // 寫待發(fā)數(shù)據(jù)指令#define FLUSH_TX        0xE1  // 沖洗發(fā)送 FIFO指令#define FLUSH_RX        0xE2   // 沖洗接收 FIFO指令#define REUSE_TX_PL     0xE3   // 定義重復(fù)裝載數(shù)據(jù)指令#define NOP             0xFF   // 保留//****************************SPI(nRF24L01)寄存器地址，詳細(xì)請對照，Page18-24#define CONFIG          0x00   // 配置收發(fā)狀態(tài)，CRC校驗(yàn)?zāi)Ｊ揭约笆瞻l(fā)狀態(tài)響應(yīng)方式#define EN_AA           0x01   // 自動應(yīng)答功能設(shè)置#define EN_RXADDR       0x02   // 可用信道設(shè)置#define SETUP_AW        0x03   // 收發(fā)地址寬度設(shè)置#define SETUP_RETR      0x04   // 自動重發(fā)功能設(shè)置#define RF_CH           0x05   // 工作頻率設(shè)置#define RF_SETUP        0x06   // 發(fā)射速率、功耗功能設(shè)置#define STATUS          0x07   // 狀態(tài)寄存器#define OBSERVE_TX      0x08   // 發(fā)送監(jiān)測功能#define CD              0x09   // 地址檢測          #define RX_ADDR_P0      0x0A   // 頻道0接收數(shù)據(jù)地址#define RX_ADDR_P1      0x0B   // 頻道1接收數(shù)據(jù)地址#define RX_ADDR_P2      0x0C   // 頻道2接收數(shù)據(jù)地址#define RX_ADDR_P3      0x0D   // 頻道3接收數(shù)據(jù)地址#define RX_ADDR_P4      0x0E   // 頻道4接收數(shù)據(jù)地址#define RX_ADDR_P5      0x0F   // 頻道5接收數(shù)據(jù)地址#define TX_ADDR         0x10   // 發(fā)送地址寄存器#define RX_PW_P0        0x11   // 接收頻道0接收數(shù)據(jù)長度#define RX_PW_P1        0x12   // 接收頻道0接收數(shù)據(jù)長度#define RX_PW_P2        0x13   // 接收頻道0接收數(shù)據(jù)長度#define RX_PW_P3        0x14   // 接收頻道0接收數(shù)據(jù)長度#define RX_PW_P4        0x15   // 接收頻道0接收數(shù)據(jù)長度#define RX_PW_P5        0x16   // 接收頻道0接收數(shù)據(jù)長度#define FIFO_STATUS     0x17   // FIFO棧入棧出狀態(tài)寄存器設(shè)置//************************************NRF24L01函數(shù)申明void Delay(unsigned int s);void inerDelay_us(unsigned char n);void init_NRF24L01(void);uint SPI_RW(uint uchar);uchar SPI_Read(uchar reg);void SetRX_Mode(void);uint SPI_RW_Reg(uchar reg, uchar value);uint SPI_Read_Buf(uchar reg, uchar *pBuf, uchar uchars);uint SPI_Write_Buf(uchar reg, uchar *pBuf, uchar uchars);unsigned char nRF24L01_RxPacket(unsigned char* rx_buf);void nRF24L01_TxPacket(unsigned char * tx_buf);//************************************DS18B20函數(shù)申明void delay1(uint i);void ds_reset(void);void write_byte(uchar value);uchar read_byte(void);void read_temp();void work_temp();//*****************************************長延時void Delay(unsigned int s){unsigned int i;for(i=0; is; i++);for(i=0; is; i++);}//*延時函數(shù)/void inerDelay_us(unsigned char n){for(;n>0;n--)_nop_();}///*NRF24L01初始化//void init_NRF24L01(void){inerDelay_us(100);CE=0; CSN=1;  SCK=0;  SPI_Write_Buf(WRITE_REG + TX_ADDR, TX_ADDRESS, TX_ADR_WIDTH);    

// 寫本地地址 SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, RX_ADDRESS, RX_ADR_WIDTH); 

// 寫接收端地址SPI_RW_Reg(WRITE_REG + RX_PW_P0, RX_PLOAD_WIDTH); 

//設(shè)置接收數(shù)據(jù)長度，本次設(shè)置為4字節(jié)SPI_RW_Reg(WRITE_REG + RX_PW_P1, RX_PLOAD_WIDTH); 

//設(shè)置接收數(shù)據(jù)長度，本次設(shè)置為4字節(jié)}//*函數(shù)：uint SPI_RW(uint uchar)/*功能：NRF24L01的SPI寫時序,詳細(xì)看時序圖，Page19/uint SPI_RW(uint uchar){uint bit_ctr;for(bit_ctr=0;bit_ctr8;bit_ctr++) // output 8-bit{MOSI = (uchar  0x80);         // output 'uchar', MSB to MOSIuchar = (uchar  1);           // shift next bit into MSB..SCK = 1;                      // Set SCK high..uchar |= MISO;           // capture current MISO bitSCK = 0;                // ..then set SCK low again}return(uchar);               // return read uchar}//*函數(shù)：uchar SPI_Read(uchar reg)/*功能：NRF24L01的SPI時序,詳細(xì)看時序圖，Page19/uchar SPI_Read(uchar reg){uchar reg_val;CSN = 0;                // CSN low, initialize SPI communication...SPI_RW(reg);            // Select register to read from..reg_val = SPI_RW(0);    // ..then read registervalueCSN = 1;                // CSN high, terminate SPI communicationreturn(reg_val);        // return register value}//*功能：NRF24L01讀寫寄存器函數(shù),/uint SPI_RW_Reg(uchar reg, uchar value){uint status;CSN = 0;                   // CSN low, init SPI transactionstatus = SPI_RW(reg);      // select registerSPI_RW(value);             // ..and write value to it..CSN = 1;                   // CSN high againreturn(status);            // return nRF24L01 status uchar}//*函數(shù)：uint SPI_Read_Buf(uchar reg, uchar *pBuf, uchar uchars)/*功能: 用于讀數(shù)據(jù)，reg：為寄存器地址，pBuf：為待讀出數(shù)據(jù)地址，uchars：讀出數(shù)據(jù)的個數(shù)/uint SPI_Read_Buf(uchar reg, uchar *pBuf, uchar uchars){uint status,uchar_ctr;CSN = 0;                      // Set CSN low, init SPI tranactionstatus = SPI_RW(reg);         

// Select register to write to and read status ucharfor(uchar_ctr=0;uchar_ctruchars;uchar_ctr++)pBuf[uchar_ctr] = SPI_RW(0);    //CSN = 1;                          return(status);                    // return nRF24L01 status uchar}//*功能: 用于寫數(shù)據(jù)：為寄存器地址，pBuf：為待寫入數(shù)據(jù)地址，uchars：寫入數(shù)據(jù)的個數(shù)/uint SPI_Write_Buf(uchar reg, uchar *pBuf, uchar uchars){uint status,uchar_ctr;CSN = 0;            //SPI使能      status = SPI_RW(reg);  for(uchar_ctr=0; uchar_ctruchars; uchar_ctr++) //SPI_RW(*pBuf++);CSN = 1;           //關(guān)閉SPIreturn(status);    //}//*功能：發(fā)送 tx_buf中數(shù)據(jù)/void nRF24L01_TxPacket(unsigned char * tx_buf){CE=0;   //StandBy I模式 SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_WIDTH); 

// 裝載接收端地址SPI_Write_Buf(WR_TX_PLOAD, tx_buf, TX_PLOAD_WIDTH);     // 裝載數(shù)據(jù) SPI_RW_Reg(WRITE_REG + CONFIG, 0x0A);      

// IRQ收發(fā)完成中斷響應(yīng)，8位CRC，主發(fā)送CE=1;   //置高CE，激發(fā)數(shù)據(jù)發(fā)送inerDelay_us(10);}//void delay1(uint i){for(;i>0;i--);  }//***********************DS1820復(fù)位函數(shù)void ds_reset(void){char temp=1;while(temp){while(temp){DQ=1;_nop_();_nop_();DQ=0;delay1(80);DQ=1;delay1(9);temp=DQ;}delay1(64);temp=~DQ; }DQ=1;}//**************DS1820寫函數(shù)void write_byte(uchar value){uchar i;for(i=8;i>0;i--){DQ=1;_nop_();_nop_();DQ=0;_nop_();_nop_();_nop_();_nop_();_nop_();DQ=value0x01;delay1(9);value>>=1;}DQ=1;delay1(1);}//****************DS1820讀函數(shù)

uchar read_byte(void){uchar i;uchar value1=0;for(i=8;i>0;i--){DQ=1;_nop_();_nop_();value1>>=1;DQ=0;_nop_();_nop_();_nop_();_nop_();DQ=1;_nop_();_nop_();_nop_();_nop_();if(DQ)value1|=0x80;delay1(9);}DQ=1;return(value1);}//****************讀取溫度void read_temp(){ds_reset();write_byte(0xcc);write_byte(0xbe);temp_data[0]=read_byte();temp_data[1]=read_byte();ds_reset();write_byte(0xcc);write_byte(0x44);//*****************溫度處理void work_temp(){uchar n=0;if(temp_data[1]>127){temp_data[1]=(256-temp_data[1]);   //負(fù)值temp_data[0]=(256-temp_data[0]);n=1;}display[6]=((temp_data[0]0xf0)>>4)|((temp_data[1]0x0f)4);display[5]=display[6]/100;    //百位display[4]=display[6]%100;    //display[2]=display[4]/10;    //十位display[1]=display[4]%10;    //個位 switch (temp_data[0]0x0f)    //小數(shù)位{case 0x0f:display[0]=9;break;case 0x0e:display[0]=9;break;case 0x0d:display[0]=8;break;case 0x0c:display[0]=8;break;case 0x0b:display[0]=7;break;case 0x0a:display[0]=6;break;case 0x09:display[0]=6;break;case 0x08:display[0]=5;break;case 0x07:display[0]=4;break;case 0x06:display[0]=4;break;case 0x05:display[0]=3;break;case 0x04:display[0]=3;break;case 0x03:display[0]=2;break;case 0x02:display[0]=1;break;case 0x01:display[0]=1;break;case 0x00:display[0]=1;break;default:break;}if(n)          //負(fù)值時顯示aa,正直顯示dd{display[3]=0x11;     }else  display[3]=0x22;}//**********溫度顯示void disdignit(){P0=0x39;led0=0;delay1(40);led0=1;P0=seg[display[0]];led1=0;delay1(40);led1=1;P0=seg1[display[1]];led2=0;delay1(40);led2=1;P0=seg[display[2]];led3=0;delay1(40);led3=1;}//*************主函數(shù)void main(void){uchar i=0;init_NRF24L01() ;     //NRF24L01初始化配置ds_reset();write_byte(0xcc);write_byte(0x44);Delay(6000);while(1){if(i==3){i=0;read_temp();work_temp();delay1(500);}i++;disdignit();nRF24L01_TxPacket(display);SPI_RW_Reg(WRITE_REG+STATUS,0XFF); }}arduino接收代碼/*** An Mirf example which copies back the data it recives.** Pins:* Hardware SPI:* MISO -> 12* MOSI -> 11* SCK -> 13** Configurable:* CE -> 8* CSN -> 7**/#include Spi.h>#include mirf.h>#include nRF24L01.h>void setup(){Serial.begin(9600);Mirf.init();unsigned char rx_addr[5] = {0x34,0x43,0x10,0x10,0x01  };Mirf.setRADDR(rx_addr);Mirf.payload = 16;Mirf.channel = 2;Mirf.config();Serial.print("channel=");Serial.println(Mirf.channel,DEC);Serial.print("payload=");Serial.println(Mirf.payload,DEC);for(int i=0;i5;i++){Serial.print("addr[");Serial.print(i);Serial.print("]=");Serial.println(rx_addr[i],HEX);}Serial.println("Listening...");}void loop(){byte data[Mirf.payload];if(Mirf.dataReady()){do{Mirf.getData(data);Serial.print("temp: ");Serial.print(data[2],DEC);Serial.print(data[1],DEC);Serial.print(".");Serial.println(data[0],DEC);}while(!Mirf.rxFifoEmpty());}}

函數(shù)中的緩沖區(qū)實(shí)際上只使用8個字節(jié),所以可以將arduino中的payload改為8,C51單片機(jī)中的TX_PLOAD_WIDTH改為8就能避免傳輸數(shù)據(jù)的浪費(fèi).