ESP8266 Community Forum

- Mon Aug 21, 2017 3:05 pm #69369 Hi

So im very new to the arduino world, but the hardware are giving me some issue,
I got a Leonardo arduino and an ESP8266. My goal is to make a LED light up via webservice/API/httprequest, what ever works best. So if i call 166.10.10.10/?led=1 (or what ever IP it has), i want it to light up.

I found some code, and I managed to get an OK and connect via AT command. But know im stuck, i have no idea if its another libery I need to use, or just some more code. (and maybe this code is that the right for me

Code: Select all/*
Arduino Leonardo <--> ESP8266
*/
 
#define SSID "myRouter"
#define PASS "123456"
#define DST_IP "192.168.1.66"
#define CONNECT_ATTEMPTS 5
#define RST 13
#define CHP 12
#define LED 11
 
void setup() {
 
  pinMode(RST, OUTPUT);
  pinMode(LED, OUTPUT);
  pinMode(CHP, OUTPUT);
 
  reset();
 
  Serial.begin(9600);
  Serial1.begin(115200);
 
  delay(5000);
 
  Serial1.println("AT+RST");
  delay(1000);
 
  if (Serial1.find("ready")) Serial.println("Module is ready");
  else {
    Serial.println("ESP8266 Module did not respond.");
    Serial.println("Enter Commands Manually.");
    while (1) chk_serial_io();
  }
  delay(1000);
  boolean connected = false;
  for (int i = 0; i < CONNECT_ATTEMPTS; i++) {
 
    if (connectWiFi()) {
      connected = true;
      break;
    }
  }
  if (!connected) {
    Serial.println("Enter Commands Manually.");
    while (1) chk_serial_io();
  }
  delay(5000);
  Serial1.println("AT+CIFSR");
  Serial.println("ip address:");
  while (Serial1.available()) Serial.write(Serial1.read());
  Serial1.println("AT+CIPMUX=0");
}
 
void reset() {
  digitalWrite(LED,HIGH);
  digitalWrite(CHP,HIGH);
  digitalWrite(RST,LOW);
  delay(100);
  digitalWrite(RST,HIGH);
  delay(1000);
  digitalWrite(LED,LOW);
}
 
void loop() {
  String cmd = "AT+CIPSTART=\"TCP\",\"";
  cmd += DST_IP;
  cmd += "\",80";
  Serial1.println(cmd);
  Serial.println(cmd);
  if (Serial1.find("Error")) return;
  cmd = "GET / HTTP/1.0\r\n\r\n";
  Serial1.print("AT+CIPSEND=");
  Serial1.println(cmd.length());
  if (Serial1.find(">")) {
    Serial.print(">");
 
  } else {
    Serial1.println("AT+CIPCLOSE");
    Serial.println("connect timeout");
    delay(1000);
    return;
  }
  Serial1.print(cmd);
  delay(2000);
  while (Serial1.available()) {
    char c = Serial1.read();
    Serial.write(c);
    if (c == '\r') Serial.print('\n');
  }
  Serial.println("====");
  delay(1000);

  Serial.println("Test");
}
 
void chk_serial_io() {
  if (Serial1.available()) {
//    if (Serial1.find("busy")) {
//      Serial.println("Resetting...");
//      reset();
    }
    int inByte = Serial1.read();
    Serial.write(inByte);
  }
  if (Serial.available()) {
    int inByte = Serial.read();
    Serial1.write(inByte);
  }
}
 
boolean connectWiFi() {
  Serial1.println("AT+CWMODE=1");
  String cmd = "AT+CWJAP=\"";
  cmd += SSID;
  cmd += "\",\"";
  cmd += PASS;
  cmd += "\"";
  Serial.println(cmd);
  Serial1.println(cmd);
  delay(2000);
  if (Serial1.find("OK")) {
    Serial.println("OK, WiFi Connected.");
    return true;
  } else {
    Serial.println("Can not connect to WiFi.");
    return false;
  }
}

- Tue Aug 22, 2017 4:22 pm #69398 The only advise I want to give you (in these cases): drop the AT commands way and the Leonardo.

Install the Arduino core for ESP8266 and let the ESP handle all things: there are already a lot of examples available that show how this is done.

Believe me: once you've used the ESP8266 core for Arduino, you'll "Never" work with an Atmel Arduino again.

Assumption is the mother of all f*ckups. At least: that's what I'm assuming.

- Thu Aug 24, 2017 4:00 pm #69437 I got the board installed with "Installing with Boards Manager".
From the new options under Board.. what do i know which to choose?
I think its this one https://www.sparkfun.com/products/13678 I have.