Install ESP32 in Arduino Ide

ESP32 is a single 2.4 GHz Wi-Fi-and-Bluetooth combo chip designed with the ultra-low-power technology. It is designed to achieve the best power and RF performance, showing robustness, versatility and reliability in a wide variety of applications and power scenarios.

Installation in Arduino Ide

1) Open Arduino Ide and click on File >> Preferences.

2) Now enter https://dl.espressif.com/dl/package_esp32_index.json into "Additional Boards manager URLs:" field as shown in below figure and click on ok button.

3) Now open the Boards Manager from Tools > Board > Boards Manager and search "esp32".

It will take some time to download and install ESP32 board, once installed you can choose your esp32 board from Tools > Boards .