راه اندازی یک وب سرور ساده با آردوینو و ماژول esp8266-01
دوستان سلام. بالاخره موفق شدم یه سمپل نصفه و نیمه گیر بیارم که بشه باهاش یه وب سرور راه انداخت که میتونه یه پیج HTML رو نمایش بده.گفتم بدنباشه اینجا بذارم، شاید به کار دوستان هم بیاد. یه مشکل وجود داره و اون اینکه stable نیست. یعنی بعد از چندبار، برنامه کرش میکنه. دارم روش کار میکنم. سعی میکنم بهشCSS هم اضافه کنم که در ادامه اینجا قرار میدم. شما هم یه حرکتی بزنید! به منطق open source احترام بذارید!
کد:
/*
Arduino Due - ESP 8266 WiFi Module
Serial (Tx/Rx) communicate to PC via USB
Serial3 (Tx3/Rx3) connect to ESP8266
Tx3 - ESP8266 Rx
Rx3 - ESP8266 Tx
ESP8266 CH_PD Connect to ESP8266 VCC
*/
#include <SoftwareSerial.h>
SoftwareSerial ESP8266(2, 3);
#define ASCII_0 48
String SSID = "اسم اکسس پوینت";
String PASSWORD = "پسورد اکسس پوینت";
int LED = 13;
boolean FAIL_8266 = false;
String strHTML = "<!doctype html>\
<html>\
<head>\
<title>in the name of god</title>\
</head>\
<body>\
<H1>thanks to aftab rayaneh. special thanks to magmagmary.</H1>\
</body>\
</html>";
#define BUFFER_SIZE 128
char buffer[BUFFER_SIZE];
void setup() {
pinMode(LED, OUTPUT);
digitalWrite(LED, LOW);
delay(300);
digitalWrite(LED, HIGH);
delay(200);
digitalWrite(LED, LOW);
delay(300);
digitalWrite(LED, HIGH);
delay(200);
digitalWrite(LED, LOW);
delay(300);
digitalWrite(LED, HIGH);
delay(200);
digitalWrite(LED, LOW);
do{
Serial.begin(9600);
ESP8266.begin(9600);
//Wait Serial Monitor to start
while(!Serial);
Serial.println("--- Start ---");
ESP8266.println("AT+RST");
delay(1000);
if(ESP8266.find("OK"))
{
Serial.println("Module is ready");
ESP8266.println("AT+CWMODE=1");
delay(2000);
//Quit existing AP, for demo
Serial.println("Quit AP");
ESP8266.println("AT+CWQAP");
delay(1000);
clearESP8266SerialBuffer();
if(cwJoinAP())
{
Serial.println("CWJAP Success");
FAIL_8266 = false;
delay(3000);
clearESP8266SerialBuffer();
//Get and display my IP
sendESP8266Cmdln("AT+CIFSR", 1000);
//Set multi connections
sendESP8266Cmdln("AT+CIPMUX=1", 1000);
//Setup web server on port 80
sendESP8266Cmdln("AT+CIPSERVER=1,80",1000);
Serial.println("Server setup finish");
}else{
Serial.println("CWJAP Fail");
delay(500);
FAIL_8266 = true;
}
}else{
Serial.println("Module have no response.");
delay(500);
FAIL_8266 = true;
}
}while(FAIL_8266);
digitalWrite(LED, HIGH);
}
void loop(){
int connectionId;
if(ESP8266.readBytesUntil('\n', buffer, BUFFER_SIZE)>0)
{
Serial.println("Something received");
Serial.println(buffer);
if(strncmp(buffer, "+IPD,", 5)==0){
Serial.println("+IPD, found");
sscanf(buffer+5, "%d", &connectionId);
Serial.println("connectionId: " + String(connectionId));
delay(1000);
clearESP8266SerialBuffer();
sendHTTPResponse(connectionId, strHTML);
//Close TCP/UDP
String cmdCIPCLOSE = "AT+CIPCLOSE=";
cmdCIPCLOSE += connectionId;
sendESP8266Cmdln(cmdCIPCLOSE, 1000);
}
}
}
void sendHTTPResponse(int id, String content)
{
String response;
response = "HTTP/1.1 200 OK\r\n";
response += "Content-Type: text/html; charset=UTF-8\r\n";
response += "Content-Length: ";
response += content.length();
response += "\r\n";
response +="Connection: close\r\n\r\n";
response += content;
String cmd = "AT+CIPSEND=";
cmd += id;
cmd += ",";
cmd += response.length();
Serial.println("--- AT+CIPSEND ---");
sendESP8266Cmdln(cmd, 1000);
Serial.println("--- data ---");
sendESP8266Data(response, 1000);
}
boolean waitOKfromESP8266(int timeout)
{
do{
Serial.println("wait OK...");
delay(1000);
if(ESP8266.find("OK"))
{
return true;
}
}while((timeout--)>0);
return false;
}
boolean cwJoinAP()
{
String cmd="AT+CWJAP=\"" + SSID + "\",\"" + PASSWORD + "\"";
ESP8266.println(cmd);
return waitOKfromESP8266(10);
}
//Send command to ESP8266, assume OK, no error check
//wait some time and display respond
void sendESP8266Cmdln(String cmd, int waitTime)
{
ESP8266.println(cmd);
delay(waitTime);
clearESP8266SerialBuffer();
}
//Basically same as sendESP8266Cmdln()
//But call ESP8266.print() instead of call ESP8266.println()
void sendESP8266Data(String data, int waitTime)
{
ESP8266.print(data);
delay(waitTime);
clearESP8266SerialBuffer();
}
//Clear and display Serial Buffer for ESP8266
void clearESP8266SerialBuffer()
{
Serial.println("= clearESP8266SerialBuffer() =");
while (ESP8266.available() > 0) {
char a = ESP8266.read();
Serial.write(a);
}
Serial.println("==============================");
}
