KryonOS is a small JavaScript-powered OS that turns a supported ESP32 development board with a touchscreen into a standalone computer with its own graphical interface, application launcher, and file storage. It provides the basic software environment needed to use the board without writing and flashing a separate firmware program for every application. Unlike traditional ESP32 firmware, KryonOS keeps applications separate from the main system and runs them through its built-in JavaScript runtime. It also includes an App Store that allows users to download and install applications and updates over Wi-Fi without reflashing the device. KryonOS key features: Supported MCUs – ESP32 (WROOM-32), ESP32-S2, ESP32-S3, and ESP32-C3 Storage – MicroSD card support via HSPI bus Display ILI9341 display controller with XPT2046 resistive touch controller connected via VSPI Experimental support for some other display controllers, e.g., ST7789V2 JavaScript Engine – Duktape 2.x (ES5/ES5.1 compliant). Graphics Engine – Direct-to-glass 16-bit RGB565 rendering with hardware […]
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