![\"ESP32](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2019\/06\/ESP32-ESP8266-Insert-Data-MySQL-Database-PHP-Arduino-IDE.jpg?resize=828%2C466&quality=100&strip=all&ssl=1\")
<\/p>\nIn this project you\u2019ll build an ESP32 or ESP8266 client that makes an HTTP POST request to a PHP script to insert data (sensor readings) into a MySQL database.<\/p>\n
<\/p>\n
You\u2019ll also have a web page that displays the sensor readings, timestamp and other information from the database. You can visualize your data from anywhere in the world by accessing your own server.<\/p>\n
<\/p>\n
As an example, we\u2019ll be using a BME280 sensor connected to an ESP board. You can modify the code provided to send readings from a different sensor or use multiple boards.<\/p>\n
In order to create build this project, you\u2019ll use these technologies:<\/p>\n
The goal of this project is to have your own domain name and hosting account that allows you to store sensor readings from the ESP32 or ESP8266. You can visualize the readings from anywhere in the world by accessing your own server domain. Here\u2019s a high level overview:<\/p>\n
I recommend using one of the following hosting services that can handle all the project requirements:<\/p>\n Those two services are the ones that I use and personally recommend, but you can use any other hosting service. Any hosting service that offers PHP and MySQL will work with this tutorial. If you don\u2019t have a hosting account, I recommend signing up for Bluehost<\/a>.<\/p>\n Get Hosting and Domain Name with Bluehost \u00bb<\/a><\/p>\n When buying a hosting account, you\u2019ll also have to purchase a domain name. This is what makes this project interesting: you\u2019ll be able to go your domain name (http:\/\/example-domain.com) and see your ESP readings.<\/p>\n If you like our projects, you might consider signing up to one of the recommended hosting services, because you\u2019ll be supporting our work.<\/p>\n Note: <\/strong>you can also run a LAMP (Linux, Apache, MySQL, PHP) server<\/a> on a Raspberry Pi to access data in your local network<\/a>. However, the purpose of this tutorial is to publish readings in your own domain name that you can access from anywhere in the world. This allows you to easily access your ESP readings without relying on a third-party IoT platform.<\/p>\n After signing up for a hosting account and setting up a domain name<\/a>, you can login to your cPanel or similar dashboard. After that, follow the next steps to create your database, username, password and SQL table.<\/p>\n 1.<\/strong> Type \u201cdatabase\u201d in the search bar and select \u201cMySQL Database Wizard\u201d.<\/p>\n 2.<\/strong> Enter your desired Database name. In my case, the database name is esp_data. Then, press the \u201cNext Step\u201d button:<\/p>\n Note: <\/strong>later you\u2019ll have to use the database name with the prefix that your host gives you (my database prefix in the screenshot above is blurred). I\u2019ll refer to it as example_esp_data from now on.<\/p>\n 3.<\/strong> Type your Database username and set a password. You must save all those details, because you\u2019ll need them later to establish a database connection with your PHP code.<\/p>\n That\u2019s it! Your new database and user were created successfully. Now, save all your details because you\u2019ll need them later:<\/p>\n After creating your database and user, go back to cPanel dashboard and search for \u201cphpMyAdmin\u201d.<\/p>\n In the left sidebar, select your database name example_esp_data and open the \u201cSQL\u201d tab.<\/p>\n Important: <\/strong>make sure you\u2019ve opened the example_esp_data database. Then, click the SQL tab. If you don\u2019t follow these exact steps and run the SQL query, you might create a table in the wrong database.<\/p>\n Copy the SQL query in the following snippet:<\/p>\n View raw code<\/a><\/p>\n Paste it in the SQL query field (highlighted with a red rectangle) and press the \u201cGo\u201d button to create your table:<\/p>\n After that, you should see your newly created table called SensorData in the example_esp_data database as shown in the figure below:<\/p>\n In this section, we\u2019re going to create a PHP script that is responsible for receiving incoming requests from the ESP32 or ESP8266 and inserting the data into a MySQL database.<\/p>\n If you\u2019re using a hosting provider with cPanel, you can search for \u201cFile Manager\u201d:<\/p>\n Then, select the public_html<\/strong> option and press the \u201c+ File\u201d button to create a new .php<\/em> file.<\/p>\n Note: <\/strong>if you\u2019re following this tutorial and you\u2019re not familiar with PHP or MySQL, I recommend creating these exact files. Otherwise, you\u2019ll need to modify the ESP sketch provided with different URL paths.<\/p>\n Create a new file in \/public_html<\/strong> with this exact name and extension: post-esp-data.php<\/em><\/p>\n Edit the newly created file (post-esp-data.php<\/em>) and copy the following snippet:<\/p>\n View raw code<\/a><\/p>\n Before saving the file, you need to modify the $dbname, $username and $password variables with your unique details:<\/p>\n After adding the database name, username and password, save the file and continue with this tutorial. If you try to access your domain name in the next URL path, you\u2019ll see the following:<\/p>\n Create another PHP file in the \/public_html<\/strong> directory that will display all the database content in a web page. Name your new file: esp-data.php<\/em><\/p>\n Edit the newly created file (esp-data.php<\/em>) and copy the following code:<\/p>\n View raw code<\/a><\/p>\n After adding the $dbname, $username and $password save the file and continue with this project.<\/p>\n If you try to access your domain name in the following URL path, you\u2019ll see the following:<\/p>\n That\u2019s it! If you see that empty table printed in your browser, it means that everything is ready. In the next section, you\u2019ll learn how to insert data from your ESP32 or ESP8266 into the database.<\/p>\n This project is compatible with both the ESP32 and ESP8266 boards. You just need to assemble a simple circuit and upload the sketch provided to insert temperature, humidity, pressure and more into your database every 30 seconds.<\/p>\n For this example we\u2019ll get sensor readings from the BME280 sensor. Here\u2019s a list of parts you need to build the circuit for this project:<\/p>\n You can use the preceding links or go directly to MakerAdvisor.com\/tools<\/a> to find all the parts for your projects at the best price!<\/p>\n The BME280 sensor module we\u2019re using communicates via I2C communication protocol, so you need to connect it to the ESP32 or ESP8266 I2C pins.<\/p>\n The ESP32 I2C pins are:<\/p>\n So, assemble your circuit as shown in the next schematic diagram (read complete Guide for ESP32 with BME280<\/a>).<\/p>\n Recommended reading:<\/strong> ESP32 Pinout Reference Guide<\/a><\/p>\n The ESP8266 I2C pins are:<\/p>\n Assemble your circuit as in the next schematic diagram if you\u2019re using an ESP8266 board (read complete Guide for ESP8266 with BME280<\/a>).<\/p>\n Recommended reading:<\/strong> ESP8266 Pinout Reference Guide<\/a><\/p>\n We\u2019ll program the ESP32\/ESP8266 using Arduino IDE, so you must have the ESP32\/ESP8266 add-on installed in your Arduino IDE. Follow one of the next tutorials depending on the board you\u2019re using:<\/p>\n After installing the necessary board add-ons, copy the following code to your Arduino IDE, but don\u2019t upload it yet. You need to make some changes to make it work for you.<\/p>\n View raw code<\/a><\/p>\n You need to modify the following lines with your network credentials: SSID and password. The code is well commented on where you should make the changes.<\/p>\n You also need to type your domain name, so the ESP publishes the readings to your own server.<\/p>\n Now, you can upload the code to your board. It should work straight away both in the ESP32 or ESP8266 board. If you want to learn how the code works, read the next section.<\/p>\n This project is already quite long, so we won\u2019t cover in detail how the code works, but here\u2019s a quick summary:<\/p>\n Then, in the loop() is where you actually make the HTTP POST request every 30 seconds with the latest BME280 readings:<\/p>\n You can comment the httpRequestData variable above that concatenates all the BME280 readings and use the httpRequestData variable below for testing purposes:<\/p>\n After completing all the steps, let your ESP board collect some readings and publish them to your server.<\/p>\n If everything is correct, this is what you should see in your Arduino IDE Serial Monitor:<\/p>\n If you open your domain name in this URL path:<\/p>\n You should see the all the readings stored in your database. Refresh the web page to see the latest readings:<\/p>\n You can also go to phpMyAdmin to manage the data stored in your SensorData table. You can delete it, edit, etc\u2026<\/p>\n In this tutorial you\u2019ve learned how to publish sensor data into a database in your own server domain that you can access from anywhere in the world. This requires that you have your own server and domain name<\/a> (you can use a Raspberry Pi for local access<\/a>).<\/p>\n The example provided is as simple as possible so that you can understand how everything works. After understanding this example, you may change the appearance of the table, publish different sensor readings, publish from multiple ESP boards, and much more.<\/p>\n You might also like reading:<\/strong><\/p>\n I hope you liked this project. If you have any questions, post a comment below and we\u2019ll try to get back to you.<\/p>\n If you like ESP32, you might consider enrolling in our course \u201cLearn ESP32 with Arduino IDE<\/a>\u201c. You can also access our free ESP32 resources here<\/a>.<\/p>\n Thank you for reading.<\/p>\n","protected":false},"excerpt":{"rendered":" In this project you\u2019ll build an ESP32 or ESP8266 client that makes an HTTP POST request to a PHP script to insert data (sensor readings) into a MySQL database. You\u2019ll also have a web page that displays the sensor readings, timestamp and other information from the database. You can visualize your data from anywhere in […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[1],"tags":[],"class_list":["post-26322","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6cOVM-6Qy","_links":{"self":[{"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=\/wp\/v2\/posts\/26322","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=26322"}],"version-history":[{"count":1,"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=\/wp\/v2\/posts\/26322\/revisions"}],"predecessor-version":[{"id":26323,"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=\/wp\/v2\/posts\/26322\/revisions\/26323"}],"wp:attachment":[{"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=26322"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=26322"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tom.tomwork.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=26322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"Hosting](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2019\/06\/ESP32-MySQL-Project-Overview.png?quality=100&strip=all&ssl=1\")
<\/a><\/p>\n\n
2. Preparing Your MySQL Database<\/h4>\n
Creating a database and user<\/h5>\n
<\/p>\n<\/p>\n<\/p>\n\n
Creating a SQL table<\/h5>\n
<\/p>\n<\/p>\nCREATE TABLE SensorData (\n id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,\n sensor VARCHAR(30) NOT NULL,\n location VARCHAR(30) NOT NULL,\n value1 VARCHAR(10),\n value2 VARCHAR(10),\n value3 VARCHAR(10),\n reading_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP\n)\n<\/code><\/pre>\n<\/p>\n<\/a><\/p>\n3. PHP Script HTTP POST \u2013 Insert Data in MySQL Database<\/h4>\n
<\/p>\n<\/p>\n<\/p>\n<?php\n\n\/*\n Rui Santos\n Complete project details at https:\/\/RandomNerdTutorials.com\/esp32-esp8266-mysql-database-php\/\n \n Permission is hereby granted, free of charge, to any person obtaining a copy\n of this software and associated documentation files.\n \n The above copyright notice and this permission notice shall be included in all\n copies or substantial portions of the Software.\n*\/\n\n$servername = \"localhost\";\n\n\/\/ REPLACE with your Database name\n$dbname = \"REPLACE_WITH_YOUR_DATABASE_NAME\";\n\/\/ REPLACE with Database user\n$username = \"REPLACE_WITH_YOUR_USERNAME\";\n\/\/ REPLACE with Database user password\n$password = \"REPLACE_WITH_YOUR_PASSWORD\";\n\n\/\/ Keep this API Key value to be compatible with the ESP32 code provided in the project page. \n\/\/ If you change this value, the ESP32 sketch needs to match\n$api_key_value = \"tPmAT5Ab3j7F9\";\n\n$api_key= $sensor = $location = $value1 = $value2 = $value3 = \"\";\n\nif ($_SERVER[\"REQUEST_METHOD\"] == \"POST\") {\n $api_key = test_input($_POST[\"api_key\"]);\n if($api_key == $api_key_value) {\n $sensor = test_input($_POST[\"sensor\"]);\n $location = test_input($_POST[\"location\"]);\n $value1 = test_input($_POST[\"value1\"]);\n $value2 = test_input($_POST[\"value2\"]);\n $value3 = test_input($_POST[\"value3\"]);\n \n \/\/ Create connection\n $conn = new mysqli($servername, $username, $password, $dbname);\n \/\/ Check connection\n if ($conn->connect_error) {\n die(\"Connection failed: \" . $conn->connect_error);\n } \n \n $sql = \"INSERT INTO SensorData (sensor, location, value1, value2, value3)\n VALUES ('\" . $sensor . \"', '\" . $location . \"', '\" . $value1 . \"', '\" . $value2 . \"', '\" . $value3 . \"')\";\n \n if ($conn->query($sql) === TRUE) {\n echo \"New record created successfully\";\n } \n else {\n echo \"Error: \" . $sql . \"<br>\" . $conn->error;\n }\n \n $conn->close();\n }\n else {\n echo \"Wrong API Key provided.\";\n }\n\n}\nelse {\n echo \"No data posted with HTTP POST.\";\n}\n\nfunction test_input($data) {\n $data = trim($data);\n $data = stripslashes($data);\n $data = htmlspecialchars($data);\n return $data;\n}\n<\/code><\/pre>\n\/\/ Your Database name\n$dbname = \"example_esp_data\";\n\/\/ Your Database user\n$username = \"example_esp_board\";\n\/\/ Your Database user password\n$password = \"YOUR_USER_PASSWORD\";<\/code><\/pre>\nhttp:\/\/example-domain.com\/post-esp-data.php<\/code><\/pre>\n<\/p>\n4. PHP Script \u2013 Display Database Content<\/h4>\n
<\/p>\n<!DOCTYPE html>\n<html><body>\n<?php\n\/*\n Rui Santos\n Complete project details at https:\/\/RandomNerdTutorials.com\/esp32-esp8266-mysql-database-php\/\n \n Permission is hereby granted, free of charge, to any person obtaining a copy\n of this software and associated documentation files.\n \n The above copyright notice and this permission notice shall be included in all\n copies or substantial portions of the Software.\n*\/\n\n$servername = \"localhost\";\n\n\/\/ REPLACE with your Database name\n$dbname = \"REPLACE_WITH_YOUR_DATABASE_NAME\";\n\/\/ REPLACE with Database user\n$username = \"REPLACE_WITH_YOUR_USERNAME\";\n\/\/ REPLACE with Database user password\n$password = \"REPLACE_WITH_YOUR_PASSWORD\";\n\n\/\/ Create connection\n$conn = new mysqli($servername, $username, $password, $dbname);\n\/\/ Check connection\nif ($conn->connect_error) {\n die(\"Connection failed: \" . $conn->connect_error);\n} \n\n$sql = \"SELECT id, sensor, location, value1, value2, value3, reading_time FROM SensorData ORDER BY id DESC\";\n\necho '<table cellspacing=\"5\" cellpadding=\"5\">\n <tr> \n <td>ID<\/td> \n <td>Sensor<\/td> \n <td>Location<\/td> \n <td>Value 1<\/td> \n <td>Value 2<\/td>\n <td>Value 3<\/td> \n <td>Timestamp<\/td> \n <\/tr>';\n \nif ($result = $conn->query($sql)) {\n while ($row = $result->fetch_assoc()) {\n $row_id = $row[\"id\"];\n $row_sensor = $row[\"sensor\"];\n $row_location = $row[\"location\"];\n $row_value1 = $row[\"value1\"];\n $row_value2 = $row[\"value2\"]; \n $row_value3 = $row[\"value3\"]; \n $row_reading_time = $row[\"reading_time\"];\n \/\/ Uncomment to set timezone to - 1 hour (you can change 1 to any number)\n \/\/$row_reading_time = date(\"Y-m-d H:i:s\", strtotime(\"$row_reading_time - 1 hours\"));\n \n \/\/ Uncomment to set timezone to + 4 hours (you can change 4 to any number)\n \/\/$row_reading_time = date(\"Y-m-d H:i:s\", strtotime(\"$row_reading_time + 4 hours\"));\n \n echo '<tr> \n <td>' . $row_id . '<\/td> \n <td>' . $row_sensor . '<\/td> \n <td>' . $row_location . '<\/td> \n <td>' . $row_value1 . '<\/td> \n <td>' . $row_value2 . '<\/td>\n <td>' . $row_value3 . '<\/td> \n <td>' . $row_reading_time . '<\/td> \n <\/tr>';\n }\n $result->free();\n}\n\n$conn->close();\n?> \n<\/table>\n<\/body>\n<\/html>\n<\/code><\/pre>\n\/\/ Your Database name\n$dbname = \"example_esp_data\";\n\/\/ Your Database user\n$username = \"example_esp_board\";\n\/\/ Your Database user password\n$password = \"YOUR_USER_PASSWORD\";<\/code><\/pre>\nhttp:\/\/example-domain.com\/esp-data.php<\/code><\/pre>\n<\/p>\n5. Preparing Your ESP32 or ESP8266<\/h4>\n
Parts Required<\/h5>\n
\n
<\/a><\/p>\nSchematics<\/h5>\n
BME280 wiring to ESP32<\/h6>\n
\n
<\/p>\nBME280 wiring to ESP8266<\/h6>\n
\n
<\/p>\nESP32\/ESP8266 Code<\/h5>\n
\n
\/*\n Rui Santos\n Complete project details at https:\/\/RandomNerdTutorials.com\/esp32-esp8266-mysql-database-php\/\n \n Permission is hereby granted, free of charge, to any person obtaining a copy\n of this software and associated documentation files.\n \n The above copyright notice and this permission notice shall be included in all\n copies or substantial portions of the Software.\n\n*\/\n\n#ifdef ESP32\n #include <WiFi.h>\n #include <HTTPClient.h>\n#else\n #include <ESP8266WiFi.h>\n #include <ESP8266HTTPClient.h>\n #include <WiFiClient.h>\n#endif\n\n#include <Wire.h>\n#include <Adafruit_Sensor.h>\n#include <Adafruit_BME280.h>\n\n\/\/ Replace with your network credentials\nconst char* ssid = \"REPLACE_WITH_YOUR_SSID\";\nconst char* password = \"REPLACE_WITH_YOUR_PASSWORD\";\n\n\/\/ REPLACE with your Domain name and URL path or IP address with path\nconst char* serverName = \"http:\/\/example.com\/post-esp-data.php\";\n\n\/\/ Keep this API Key value to be compatible with the PHP code provided in the project page. \n\/\/ If you change the apiKeyValue value, the PHP file \/post-esp-data.php also needs to have the same key \nString apiKeyValue = \"tPmAT5Ab3j7F9\";\n\nString sensorName = \"BME280\";\nString sensorLocation = \"Office\";\n\n\/*#include <SPI.h>\n#define BME_SCK 18\n#define BME_MISO 19\n#define BME_MOSI 23\n#define BME_CS 5*\/\n\n#define SEALEVELPRESSURE_HPA (1013.25)\n\nAdafruit_BME280 bme; \/\/ I2C\n\/\/Adafruit_BME280 bme(BME_CS); \/\/ hardware SPI\n\/\/Adafruit_BME280 bme(BME_CS, BME_MOSI, BME_MISO, BME_SCK); \/\/ software SPI\n\nvoid setup() {\n Serial.begin(115200);\n \n WiFi.begin(ssid, password);\n Serial.println(\"Connecting\");\n while(WiFi.status() != WL_CONNECTED) { \n delay(500);\n Serial.print(\".\");\n }\n Serial.println(\"\");\n Serial.print(\"Connected to WiFi network with IP Address: \");\n Serial.println(WiFi.localIP());\n\n \/\/ (you can also pass in a Wire library object like &Wire2)\n bool status = bme.begin(0x76);\n if (!status) {\n Serial.println(\"Could not find a valid BME280 sensor, check wiring or change I2C address!\");\n while (1);\n }\n}\n\nvoid loop() {\n \/\/Check WiFi connection status\n if(WiFi.status()== WL_CONNECTED){\n WiFiClient client;\n HTTPClient http;\n \n \/\/ Your Domain name with URL path or IP address with path\n http.begin(client, serverName);\n \n \/\/ Specify content-type header\n http.addHeader(\"Content-Type\", \"application\/x-www-form-urlencoded\");\n \n \/\/ Prepare your HTTP POST request data\n String httpRequestData = \"api_key=\" + apiKeyValue + \"&sensor=\" + sensorName\n + \"&location=\" + sensorLocation + \"&value1=\" + String(bme.readTemperature())\n + \"&value2=\" + String(bme.readHumidity()) + \"&value3=\" + String(bme.readPressure()\/100.0F) + \"\";\n Serial.print(\"httpRequestData: \");\n Serial.println(httpRequestData);\n \n \/\/ You can comment the httpRequestData variable above\n \/\/ then, use the httpRequestData variable below (for testing purposes without the BME280 sensor)\n \/\/String httpRequestData = \"api_key=tPmAT5Ab3j7F9&sensor=BME280&location=Office&value1=24.75&value2=49.54&value3=1005.14\";\n\n \/\/ Send HTTP POST request\n int httpResponseCode = http.POST(httpRequestData);\n \n \/\/ If you need an HTTP request with a content type: text\/plain\n \/\/http.addHeader(\"Content-Type\", \"text\/plain\");\n \/\/int httpResponseCode = http.POST(\"Hello, World!\");\n \n \/\/ If you need an HTTP request with a content type: application\/json, use the following:\n \/\/http.addHeader(\"Content-Type\", \"application\/json\");\n \/\/int httpResponseCode = http.POST(\"{\\\"value1\\\":\\\"19\\\",\\\"value2\\\":\\\"67\\\",\\\"value3\\\":\\\"78\\\"}\");\n \n if (httpResponseCode>0) {\n Serial.print(\"HTTP Response code: \");\n Serial.println(httpResponseCode);\n }\n else {\n Serial.print(\"Error code: \");\n Serial.println(httpResponseCode);\n }\n \/\/ Free resources\n http.end();\n }\n else {\n Serial.println(\"WiFi Disconnected\");\n }\n \/\/Send an HTTP POST request every 30 seconds\n delay(30000); \n}\n<\/code><\/pre>\nSetting your network credentials<\/h6>\n
\/\/ Replace with your network credentials\nconst char* ssid = \"REPLACE_WITH_YOUR_SSID\";\nconst char* password = \"REPLACE_WITH_YOUR_PASSWORD\";<\/code><\/pre>\nSetting your serverName<\/h6>\n
const char* serverName = \"http:\/\/example-domain.com\/post-esp-data.php\";<\/code><\/pre>\nHow the code works<\/h6>\n
\n
\/\/ Your Domain name with URL path or IP address with path\nhttp.begin(client, serverName);\n\n\/\/ Specify content-type header\nhttp.addHeader(\"Content-Type\", \"application\/x-www-form-urlencoded\");\n\n\/\/ Prepare your HTTP POST request data\nString httpRequestData = \"api_key=\" + apiKeyValue + \"&sensor=\" + sensorName + \"&location=\" + sensorLocation + \"&value1=\" + String(bme.readTemperature()) + \"&value2=\" + String(bme.readHumidity()) + \"&value3=\" + String(bme.readPressure()\/100.0F) + \"\";\n\nint httpResponseCode = http.POST(httpRequestData);<\/code><\/pre>\nString httpRequestData = \"api_key=tPmAT5Ab3j7F9&sensor=BME280&location=Office&value1=24.75&value2=49.54&value3=1005.14\";<\/code><\/pre>\nDemonstration<\/h4>\n
<\/p>\n<\/p>\nhttp:\/\/example-domain.com\/esp-data.php<\/code><\/pre>\n<\/p>\n<\/p>\nWrapping Up<\/h4>\n
\n