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As of 2025-10-07

Configuring Arduino core for the ESP32

Configuration method for ESP32 toolchain

This guide outlines the Arduino core for the ESP32 configuration required for TWELITE SPOT firmware development.

This section contains TWELITE SPOT-specific content.

Board Selection

Select Tools -> Board -> ESP32 Arduino -> ESP32 Dev Module from the toolbar.

Configure the settings as shown in the image below:

By default, Flash Size is set to 4MB (32Mb).

Change this to 16MB (128Mb).

If programming fails, try changing Flash Mode: QIO to Flash Mode: DIO.