Serial.println('Timer set to 10 seconds (timerDelay variable), it will take 10 seconds before publishing the first reading.') Serial.print('Connected to WiFi network with IP Address: ') For a final application, check the API call limits per hour/minute to avoid getting blocked/banned THE DEFAULT TIMER IS SET TO 10 SECONDS FOR TESTING PURPOSES Domain Name with full URL Path for HTTP POST Request (see in Tools > Boards > Boards Manager > ESP8266)Ĭonst char* ssid = 'REPLACE_WITH_YOUR_SSID' Ĭonst char* password = 'REPLACE_WITH_YOUR_PASSWORD' The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.Ĭode compatible with ESP8266 Boards Version 3.0.0 or above Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files. In this example, the ESP8266 makes an HTTP POST request to send a new value to ThingSpeak.Ĭopy the next sketch to your Arduino IDE: /*Ĭomplete project details at Complete project details at Finally, modify our examples to integrate with any API you want to use. Then, you need the server name (URL or IP address), and parameters to send in the request (URL path or request body). In summary, to make this guide compatible with any service, you need to search for the service API documentation. All examples presented in this guide also work with other APIs. If you prefer to learn with a local solution you can use HTTP with Node-RED. In this guide, you’ll learn how to setup your ESP8266 NodeMCU board to perform HTTP requests to ThingSpeak and. Installing the ESP8266 NodeMCU Board in Arduino IDE (Windows, Mac OS X, Linux).We’ll program the ESP8266 NodeMCU using Arduino IDE, so make sure you have the ESP8266 add-on installed. However, if it’s not encrypted, it’s still visible in the request body.) Prerequisitesīefore proceeding with this tutorial, make sure you complete the following prerequisites. (With HTTP POST, data is not visible in the URL request. In the body request, you can also send a JSON object: POST /update HTTP/1.1 The data sent to the server with POST is stored in the request body of the HTTP request: POST /update HTTP/1.1Ĭontent-Type: application/x-www-form-urlencoded For example, publish sensor readings to a server. POST is used to send data to a server to create/update a resource. Finally, the response contains status information about the request and may also contain the requested content.

The server returns a response to the ESP8266 (client).The ESP8266 (client) submits an HTTP request to a Server (for example: ThingSpeak or ).

The Hypertext Transfer Protocol (HTTP) works as a request-response protocol between a client and server. Recommended: ESP8266 NodeMCU HTTP GET with Arduino IDE ( and ThingSpeak) HTTP POST Request Method

Esp8266 arduino example