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https://hackaday.io/project/204948-lilka/log/246883-lilka-firmware-explained #lilka #лілка #100дописівукраїнською #openhardware #opensource #ESP32

Lilka Firmware Explained | Details | Hackaday.io

<a href="https://hackaday.io/project/204948-lilka/log/245899-lilka-ukraines-diy-esp32-learning-console">Lilka</a> is a Ukrainian open-source DIY educational gaming console based on the ESP32-S3 microcontroller. It is designed so that even a beginner can assemble it using widely available modules. <h1>KeiraOS</h1> By itself, the console is just hardware: a screen, buttons, and a chip. To make everything work, it needs firmware — a software “control center”. The main firmware is KeiraOS (named after the developer’s cat). It is an open-source operating system based on FreeRTOS, written in C++, that controls the device and allows you to run games and applications. <figure><img class="lazy" data-src="https://cdn.hackaday.io/images/4326611774340912840.jpeg"></figure> You can develop apps for KeiraOS in several ways: <ul><li>🧩 C++ — using PlatformIO and the <a href="https://registry.platformio.org/libraries/lilka/Lilka">Lilka library</a> (requires compilation, similar to Arduino)</li><li>⚡ Lua and mJS — run directly from a microSD card without compilation, so you can see results almost instantly</li></ul> You can find example apps in the <a href="https://hackaday.io/project/204948-lilka/log/246594-lilka-app-store">Lilka Apps & Mods</a> repository. Lilka is not just for games. You can connect sensors and modules via GPIO and work with common interfaces: <ul><li>🔌 I2C, UART, SPI</li><li>📊 ADC</li><li>🎛️ PWM</li></ul> KeiraOS can also run retro games (.ROM and .NES) directly from an SD card using the <a href="https://github.com/nwagyu/nofrendo">Nofrendo</a> emulator. In addition to the main system, Lilka supports running third-party firmware in .bin format. This means you can: <ul><li>📦