ArduinoMenu

An open source menu/UI library for embedded and IoT devices (AVR, ESP32, STM32, and other MCU targets), used wherever a device needs a navigable on-device UI: buttons, encoders, LCD/OLED/TFT displays, serial terminals, or web interfaces. In production use for over a decade, with 1,000+ GitHub stars and preservation in the GitHub Arctic Code Vault. Funding supports migrating the library onto a newer, zero-overhead compile-time architecture (HAPI, part of the InternetOfPins ecosystem) and resolving a known compiler-diagnostics barrier that discourages less experienced adopters.