_SKU_TEL0117_LoRa_MESH_Radio_Module 868MHZ - jimaobian/DFRobotWikiCn GitHub Wiki

主模块（Master）代码程序

/*!
 * @file Master.ino
 * @brief LoRa MESH Radio Module-868MHZ.
 * @n [Get the module here]()
 * @n This example is a Master of the application.
 * @n [Connection and Diagram](http://wiki.dfrobot.com.cn/index.php?title=(SKU:TEL0117)LoRa_MESH_Radio_Module-868MHZ)
 *
 * @copyright  [DFRobot](http://www.dfrobot.com), 2016
 * @copyright GNU Lesser General Public License
 *
 * @author [lijun]([email protected])
 * @version  V1.0
 * @date  2017-01-17
 */

#include <Wire.h>
#include "DFRobot_RGBLCD.h"
#include <SoftwareSerial.h>

SoftwareSerial mySerial(10, 11); // RX, TX
DFRobot_RGBLCD lcd(0x7c >> 1, 0xc0 >> 1, 16, 2); //parameter1:LCD address; parameter2:RGB address; 16 characters and 2 lines of show



const char SET = 6;  //改变参数时置高
const char led = 13;


unsigned char buffer_RTT[64] = {};  //接收无线数据
unsigned char buffer_RVC[64] = {0};  //接收串口数据
int k = 0;


void setup()
{
  Serial.begin(9600); //打开PC端串口
  mySerial.begin(9600);//打开与无线模块连接串口
  lcd.init();
  pinMode(led, OUTPUT);
  pinMode(SET, OUTPUT); //改变参数时需要置高才能保存改变的参数
}


void loop()
{
  k = 0;
  while (Serial.available() < 1);  //等待串口指令
  while (Serial.available() > 0)
  {
    char data;
    data = Serial.read();
    delay(2);
    buffer_RVC[k] = (char)data;
    k++;
    Serial.flush();
  }

  //for (int i = 0; i < k; i++) Serial.write(buffer_RVC[i]);  //
  while ( buffer_RVC[0] == 0x05 && buffer_RVC[2] == 0x01 )  //判断接收的指令是否为发送指令
  {
    for (int i = 0; i < k; i++) mySerial.write(buffer_RVC[i]);  //无线主模块发送数据（即无线主模块向从模块发送数据）
    digitalWrite(led, HIGH); //led灯亮
    while (mySerial.available() < 1);  //等待无线主模块返回应答
    while (mySerial.available() > 0)
    {
      char data;
      for (int j = 0; j < 64; j++)
      {
        data = mySerial.read();
        buffer_RTT[j] = (char)data;
        delay(2);
      }
      mySerial.flush();

      while (mySerial.available() < 1); //等待其它从模块应答的数据
      while (mySerial.available() > 0)
      {
        char data;
        for (int j = 0; j < 64; j++)
        {
          data = mySerial.read();
          buffer_RTT[j] = (char)data;
          delay(2);
        }
        mySerial.flush();
      }
    }
    break;
  }
  digitalWrite(led, LOW);//led灭
  lcd.setCursor(0, 0 );
  for (int j = 8; j < 24; j++) lcd.write(buffer_RTT[j]);  //显示接收的到的数据（LCD1602只能显示32个数据）
  lcd.setCursor(0, 1 );
  for (int j = 24; j < 40; j++) lcd.write(buffer_RTT[j]);  //显示接收的到的数据（LCD1602只能显示32个数据）
  delay(1000);
}

从模块（Slave）代码程序

/*!
 * @file Slave.ino
 * @brief LoRa MESH Radio Module-868MHZ.
 * @n [Get the module here]()
 * @n This example is a Slave of the application.
 * @n [Connection and Diagram](http://wiki.dfrobot.com.cn/index.php?title=(SKU:TEL0117)LoRa_MESH_Radio_Module-868MHZ)
 *
 * @copyright  [DFRobot](http://www.dfrobot.com), 2016
 * @copyright GNU Lesser General Public License
 *
 * @author [lijun]([email protected])
 * @version  V1.0
 * @date  2017-01-17
 */
#include <SoftwareSerial.h>

SoftwareSerial mySerial(10, 11); // RX, TX



const char SET = 6;  //
const char led = 13;



int flag = HIGH;
unsigned char buffer_RTT[64] = {};  //接收无线数据


void setup()
{
  Serial.begin(9600);//打开PC端串口
  mySerial.begin(9600);  //打开与无线模块连接串口
  pinMode(led, OUTPUT);
  pinMode(SET, OUTPUT);//改变参数时需要置高才能保存改变的参数
}


void loop()
{
  while (mySerial.available() < 1); //等待接收主模块发送的数据
  while (mySerial.available() > 0)
  {
    char data;
    for (int j = 0; j < 64; j++)
    {
      data = mySerial.read();
      delay(1);
      buffer_RTT[j] = (char)data;
    }
    mySerial.flush();
  }

  while ( buffer_RTT[8] == 0x22 && buffer_RTT[9] == 0x11 )  //判断数据中的命令
  {
    digitalWrite(led, HIGH);
    Serial.write(0x01); //向PC串口发送01
    delay(1);
    while (Serial.available() < 1);  //等待PC串口发送数据
    while (Serial.available() > 0)
    {
      char data;
      data = Serial.read();
      //delay(10);
      mySerial.write(data);  //向无线从模块发送数据（即从模块向主模块发送数据）
    }
    Serial.flush();
    mySerial.flush();
    digitalWrite(led, LOW);
    buffer_RTT[64] = {0};
    break;
  }
}