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1. In the Arduino IDE Boards Manager, install support for the ESP32. You can find instructions here: https://docs.espressif.com/projects/arduino-esp32/en/latest/installing.html
You may also have to install the [CP2104 USB to Serial drivers](https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers) if the port is not automatically detected