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As of 2025-07-24

Configuring Arduino core for the ESP32

How to configure the toolchain for ESP32

This guide explains how to configure the Arduino core for the ESP32 required for TWELITE SPOT firmware development.

From here on, the content is specific to TWELITE SPOT.

Selecting the Board Type

From the toolbar, select Tools → Board → ESP32 Arduino → ESP32 Dev Module.

Please configure as shown in the image below.

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

Please change this to 16MB (128Mb).