Note: If you already have a URL for ESP32 or another board, separate them with a comma. Click . Step 3: Install the ESP8266 Core ESP8266 board support for v2.3.3 - IDE 2.x - Arduino Forum
The IDE needs a specific link to find the ESP8266 installation files. Open the Arduino IDE and go to > Preferences . Locate the field labeled Additional Boards Manager URLs . esp8266 download arduino
If you haven't already, download the latest version of the Arduino IDE from the official website. Both the classic 1.8.x and the newer 2.x versions work perfectly with ESP8266. Note: If you already have a URL for
Paste the following stable URL into the box: http://arduino.esp8266.com/stable/package_esp8266com_index.json . Open the Arduino IDE and go to > Preferences
Getting your ESP8266 up and running with the Arduino IDE is the first step toward building powerful IoT projects like smart home sensors or web servers. Since the ESP8266 is not supported by Arduino out of the box, you must manually add the "ESP8266 Core" to your environment.