jsn270 사용하기

JSN270.zip

*jsn270 라이브러리입니다.

저희가 사용한 예제는

파일 - 예제 - JSN270 - Examples - JSN270_Simple_Web_Server를 이용하도록 하겠습니다!

수정할 부분만 빨간색표시를 하도록하겠습니다

//JSN270_Simple_Web_Server

#include <Debug.h>

#include <JSN270.h>

#include <Arduino.h>

#include <SoftwareSerial.h>

#define SSID      "JSN270_2G" // 접속할 WiFi의 아이디 -> 예를들어 gothiczzang 이면 "gothiczzang"으로 수정

#define KEY       "12345678" // 접속할 WiFi의 비밀번호 -> 예를들어 gothiczzang 이면 "gothiczzang"으로 수정

#define AUTH       "WPA2" // your wifi network security (NONE, WEP, WPA, WPA2)

#define USE_DHCP_IP 1

#if !USE_DHCP_IP

#define MY_IP          "192.168.1.133"

#define SUBNET         "255.255.255.0"

#define GATEWAY        "192.168.1.254"

#endif

#define SERVER_PORT    80

#define PROTOCOL       "TCP"

int led_status = 0;

    

SoftwareSerial mySerial(3, 2); // RX, TX

 

JSN270 JSN270(&mySerial);

void setup() {

char c;

mySerial.begin(9600);

Serial.begin(9600);

Serial.println("--------- JSN270 Simple HTTP server Test --------");

// wait for initilization of JSN270

delay(5000);

//JSN270.reset();

delay(1000);

//JSN270.prompt();

JSN270.sendCommand("at+ver\r");

delay(5);

while(JSN270.receive((uint8_t *)&c, 1, 1000) > 0) {

Serial.print((char)c);

}

delay(1000);

#if USE_DHCP_IP

JSN270.dynamicIP();

#else

JSN270.staticIP(MY_IP, SUBNET, GATEWAY);

#endif    

    

if (JSN270.join(SSID, KEY, AUTH)) {

Serial.println("WiFi connect to " SSID);

}

else {

Serial.println("Failed WiFi connect to " SSID);

Serial.println("Restart System");

return;

}    

delay(1000);

JSN270.sendCommand("at+wstat\r");

delay(5);

while(JSN270.receive((uint8_t *)&c, 1, 1000) > 0) {

Serial.print((char)c);

}

delay(1000);        

JSN270.sendCommand("at+nstat\r");

delay(5);

while(JSN270.receive((uint8_t *)&c, 1, 1000) > 0) {

Serial.print((char)c);

}

delay(1000);

}

void loop() {

if (!JSN270.server(SERVER_PORT, PROTOCOL)) {

Serial.println("Failed connect ");

Serial.println("Restart System");

} else {

Serial.println("Waiting for connection...");

}

      

String currentLine = "";                // make a String to hold incoming data from the client

int get_http_request = 0;

while (1) {

if (mySerial.overflow()) {

Serial.println("SoftwareSerial overflow!");

}

   

if (JSN270.available() > 0) {

char c = JSN270.read();

Serial.print(c);

if (c == '\n') {                    // if the byte is a newline character

if (currentLine.length() == 0) {

if (get_http_request) {

Serial.println("new client");

//Serial.println("HTTP RESPONSE");

// Enter data mode

JSN270.sendCommand("at+exit\r");

delay(100);

// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)

// and a content-type so the client knows what's coming, then a blank line:

JSN270.println("HTTP/1.1 200 OK");

JSN270.println("Content-type:text/html");

JSN270.println();

// the content of the HTTP response follows the header:

JSN270.print("Click <a href=\"/H\">here</a> turn the LED on pin 9 on<br>");

JSN270.print("Click <a href=\"/L\">here</a> turn the LED on pin 9 off<br>");

// The HTTP response ends with another blank line:

JSN270.println();

// wait until all http response data sent:

delay(1000);

// Enter command mode:

JSN270.print("+++");

delay(100);

// break out of the while loop:

break;

}

}

// if you got a newline, then clear currentLine:

else {                

// Check the client request:

if (currentLine.startsWith("GET / HTTP")) {

Serial.println("HTTP REQUEST");

get_http_request = 1;

}

else if (currentLine.startsWith("GET /H")) {

//Serial.println("GET HIGH");

get_http_request = 1;

led_status = 1;

}

else if (currentLine.startsWith("GET /L")) {

//Serial.println("GET LOW");

get_http_request = 1;

led_status = 0;

}

currentLine = "";

}

}

else if (c != '\r') {    // if you got anything else but a carriage return character,

currentLine += c;      // add it to the end of the currentLine

}

}

}

if (led_status) {

JSN270.sendCommand("at+gpioset=15,1\r");               // GET /H turns the LED on

}

else {

JSN270.sendCommand("at+gpioset=15,0\r");               // GET /H turns the LED off

}

// close the connection

JSN270.sendCommand("at+nclose\r");

Serial.println("client disonnected");

}

*ip를 할당받은 모습

할당받은 ip를 url에 치고 :80을 붙이시면

* http://192.168.0.12/

위와 같이 나오시면 성공입니다