Link error

[bbmachado]

Hi,

I´m working a project using ESP-8266 ESP-01, but when i try connect do a server return Link Error. When I use the AT Commands direct by serial terminal it´s work fine. Any ideias?

The code:

include

include

define SSID "My network"

define PASSWORD "xxxxxxxxxx"

define sw_serial_rx_pin 3 // Connect this pin to TX on the esp8266

define sw_serial_tx_pin 2 // Connect this pin to RX on the esp8266

define esp8266_reset_pin 8 // Connect this pin to CH_PD on the esp8266, not reset. (let reset be unconnected)

uint8_t wifi_started = false; SoftwareSerial swSerial(sw_serial_rx_pin, sw_serial_tx_pin); // the last parameter sets the local echo option for the ESP8266 module.. ESP8266wifi wifi(swSerial, swSerial, esp8266_reset_pin,Serial);

void setup() { // put your setup code here, to run once: Serial.begin(115200); swSerial.begin(115200); Serial.println("Starting wifi...");

wifi.begin(); //wifi.setTransportToTCP(); wifi.connectToAP(SSID, PASSWORD); if (wifi.isStarted()) Serial.println("Just Testing...."); condicaotempo(); }

void condicaotempo() { String location = "/"; // Location where to fetch the new Status String cmd = "GET / HTTP/1.1\r\n"; // complete HTTP request //cmd += "Host: www.google.com.br\n";

wifi.connectToServer("www.google.com.br", "80"); delay(1000); wifi.send(SERVER, cmd);

WifiMessage in = wifi.listenForIncomingMessage(2000); if (in.hasData) { Serial.print("Response: "); Serial.println(in.message); } else { Serial.println("I can´t connect to server :-("); } wifi.disconnectFromServer(); }

void loop() { // put your main code here, to run repeatedly:

}

Thanks for helping

[Fox51]

Hi, there

Did you try to set first the command AT+CIPMUX=1 before setting the connectToServer(), you could try something like this : swSerial.write("AT+CIPMUX=1\r\n")

[bbmachado]

Hi Fox51,

I used this command, but in the begining of the program. I will try again, but before the command connectToServer().

Thanks