아두이노 와이파이

3.3V

 

RX를2 T를 TX를3

#include <SoftwareSerial.h> 


int RX = 2;
int TX = 3;
SoftwareSerial ESP01(RX, TX); 


void setup() { 
  Serial.begin(9600);  //아두이노 우노 보드레이트 115200
  ESP01.begin(9600);   //와이파이 모듈 보드레이트 115200
  ESP01.setTimeout(5000); 
  delay(1000); 
} 


void loop() { 
  if (Serial.available()){
    ESP01.write(Serial.read()); 
  } 
  if (ESP01.available()) { 
    Serial.write(ESP01.read()); 
  }
}

CR LF로 바꾸어주기

 

 

ZIP 라이브러리에서 헤더파일의 27번쨰 줄의 주석을 풀어준다.

ITEADLIB_Arduino_WeeESP8266-master.zip

0.41MB

#include <doxygen.h>
#include <ESP8266.h>

#include "ESP8266.h"
#include <SoftwareSerial.h> 
 
#define SSID        "Pjh"  


#define PASSWORD    "12345678q"


#define HOST_PORT   80


 
SoftwareSerial mySerial(2, 3); /* RX:D10, TX:D9 */
ESP8266 wifi(mySerial);




void setup(void)
{
    Serial.begin(9600);
    Serial.print("setup begin\r\n");
    
    Serial.print("FW Version:");
    Serial.println(wifi.getVersion().c_str());
      
    if (wifi.setOprToStationSoftAP()) {
        Serial.print("to station + softap ok\r\n");
    } else {
        Serial.print("to station + softap err\r\n");
    }
 
    if (wifi.joinAP(SSID, PASSWORD)) {
        Serial.print("Join AP success\r\n");
        Serial.print("IP: ");
        Serial.println(wifi.getLocalIP().c_str());    
    } else {
        Serial.print("Join AP failure\r\n");
    }
    
    if (wifi.enableMUX()) {
        Serial.print("multiple ok\r\n");
    } else {
        Serial.print("multiple err\r\n");
    }
    
    if (wifi.startTCPServer(HOST_PORT)) {
        Serial.print("start tcp server ok\r\n");
    } else {
        Serial.print("start tcp server err\r\n");
    }
    
    if (wifi.setTCPServerTimeout(10)) { 
        Serial.print("set tcp server timout 10 seconds\r\n");
    } else {
        Serial.print("set tcp server timout err\r\n");
    }
    
    Serial.print("setup end\r\n");
 
    pinMode( 13, OUTPUT ); 
}
 
void loop(void)
{
    uint8_t send_buffer[128] = {0};
    uint8_t recv_buffer[128] = {0};
    uint8_t mux_id;
    uint32_t len = wifi.recv(&mux_id, recv_buffer, sizeof(recv_buffer), 100);
    if (len > 0) {
        Serial.print("Received:[");
        for(uint32_t i = 0; i < len; i++) {
            Serial.print((char)recv_buffer[i]);
        }
        Serial.print("]\r\n");




        char command = recv_buffer[0];
        int ledStatus = digitalRead(LED_BUILTIN);
        


        switch (command){
        
            case '1':
              
              if (ledStatus == LOW){
                digitalWrite(LED_BUILTIN, HIGH);
                sprintf(send_buffer, "LED is on\n");
                wifi.send(mux_id,send_buffer, strlen(send_buffer));
              }
              else{
                sprintf(send_buffer, "LED is already on\n");
                wifi.send(mux_id,send_buffer, strlen(send_buffer));
              }
              break;
        
            case '2':
            
              if (ledStatus == HIGH){
                digitalWrite(LED_BUILTIN, LOW);
                sprintf(send_buffer, "LED is off.\n");
                wifi.send(mux_id,send_buffer, strlen(send_buffer));
              }
              else{
                sprintf(send_buffer, "LED is already off.\n");
                wifi.send(mux_id,send_buffer, strlen(send_buffer));
              }
              break;
        
            case 'S':
            case 's':
                
              if (ledStatus == LOW){
                sprintf(send_buffer, "LED status: off\n");
                wifi.send(mux_id,send_buffer, strlen(send_buffer));
              }
              else {
                sprintf(send_buffer, "LED status: on\n");
                wifi.send(mux_id,send_buffer, strlen(send_buffer));
              }
              break;
              
            default:
              uint8_t buf[]="Usage\n1 : Turn On LED\n2 : Turn Off LED\nS : LED status\n\n";
              wifi.send(mux_id, buf, strlen(buf));
              break;
              
        }      
    }
}

STAIP의 주소로 J1C에 입력을 해준다.

COMPort를 맞추어 주고 TCP Option에 주소를 입력하여 준다. 긜고 Edit Data에 숫자등을 입력하여 응답이 오는지 확인을 한다.