| roo_collections | Memory-conscious collections, supporting flat small hashtables, hash maps, and hash sets. |
| roo_display | Graphics library, supporting variety of display devices and touch panels. |
| roo_flags | Minimalistic library for run-time configuration flags. |
| roo_icons | Collection of icons for use with the roo_display library. |
| roo_logging | Logging library, targeted at ESP32 and related boards. |
| roo_material_icons | Collection of icons for use with the roo_display library. |
| roo_scheduler | Allows scheduling delayed and/or repetitive tasks. |
| roo_time | Basic management of elapsed time, wall time, and date time, with multi-timezone support. |