ArduinoOTA in different subnet

6v6gt · November 13, 2017, 10:32pm

It appears that you want to define an IP address (static address) for your ESP8266 instead of accepting a DHCP supplied one (dynamic address).

I'm not sure how current this, but it appears not to be too hopeful:

http://www.esp8266.com/viewtopic.php?f=6&t=489

But, then again, this appears to have a solution (see comment Apr 21, 2016):

github.com/esp8266/Arduino

Fixed IP with ESP8266WiFi

opened 04:14PM - 21 Apr 16 UTC

closed 04:42AM - 22 Apr 16 UTC

SamirTafesh

Hello, i am building a Relay controller via ESP8266Wifi, every thing works fine… with no problem, but the issue is that every time i restart the ESP, a new IP address is assigned, i would like to know if it is possible to fix an IP address from the code and not from the router the Code is /* - This sketch demonstrates how to set up a simple HTTP-like server. - The server will set a GPIO pin depending on the request - http://server_ip/gpio/0 will set the GPIO2 low, - http://server_ip/gpio/1 will set the GPIO2 high - server_ip is the IP address of the ESP8266 module, will be - printed to Serial when the module is connected. */ # include ESP8266WiFi.h const char\* ssid = "BOSS-HOME"; const char\* password = "9876543210"; // the IP address for the shield: IPAddress ip(192, 168, 1, 177); // Create an instance of the server // specify the port to listen on as an argument WiFiServer server(80); void setup() { Serial.begin(115200); delay(10); // prepare GPIO2 pinMode(2, OUTPUT); digitalWrite(2, HIGH); pinMode(0, OUTPUT); digitalWrite(0, HIGH); // Connect to WiFi network Serial.println(); Serial.println(); Serial.print("Connecting to "); Serial.println(ssid); //WiFi.config(ip); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println(""); Serial.println("WiFi connected"); // Start the server server.begin(); Serial.println("Server started"); // Print the IP address Serial.println(WiFi.localIP()); } void loop() { // Check if a client has connected WiFiClient client = server.available(); if (!client) { return; } // Wait until the client sends some data Serial.println("new client"); while(!client.available()){ delay(1); } // Read the first line of the request String req = client.readStringUntil('\r'); Serial.println(req); client.flush(); // Match the request int val; if (req.indexOf("/gpio/0") != -1) digitalWrite(2, LOW); else if (req.indexOf("/gpio/1") != -1) digitalWrite(2,HIGH); else { Serial.println("invalid request"); client.stop(); return; } // Set GPIO2 according to the request //digitalWrite(2, val); client.flush(); // Prepare the response String s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<!DOCTYPE HTML>\r\n<html>\r\nGPIO is now "; s += (val)?"high":"low"; s += "</html>\n"; // Send the response to the client client.print(s); delay(1); Serial.println("Client disonnected"); // The client will actually be disconnected // when the function returns and 'client' object is detroyed }

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ArduinoOTA in different subnet

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