1. AcebuttonAn adjustable, compact, event-driven button library for Arduino that debounces and dispatches events to a user-defined event handler.
2. AunitUnit testing framework for Arduino platforms inspired by ArduinoUnit and Google Test. Used with AUniter or EpoxyDuino for continuous builds.
3. AcetimeDate and time classes for Arduino supporting TZ Database time zones, and system clock classes to synchronize from NTP server or RTC chip.
4. AceCommonCommon low-level Arduino functions and routines intended to be used by other libraries.