| DFPlayerMini | A reliable, responsive and compact driver for DFPlayer Mini sound module for Arduino. |
| EButton | A compact, simple-to-use, reliable and powerful event-driven button library, with proper debouncing and fine grained event structure. |
| EWMA | Exponentially Weighted Moving Average filter used for smoothing data series readings. |
| LinkedPointerList | Light-weight implementation of LinkedList library, that is now stripped down to bare minimum, making it appropriate for use in memory-critical environments. |