| SSVAnySensor | Simple class to incorporate logic of practically any sensor. |
| SSVLongTime | Singleton class to return uptime in seconds. |
| SSVQueueStackArray | Queue/Stack storage based on array ring buffer. |
| SSVTimer | One more non-blocking timer class based on millis() function. |
| SSVWaitForStringInStream | Simple class to compare coming characters one by one, on the fly, from any stream, and compare it with predefined string constants. |
| SSVNTPCoreClass | Singleton class to get real time over NTP. Based on esp8266 core function configTime(). Supports auto DST per time zone. |
| SSVRGBGradientCalc | Simple class to implement RGB Gradient calulations, based on FastLED. |
| SSVXYMatrix | FastLED-based class to handle XY Full Color LED Matrix. |
| SSVXYMatrixText | Class to show text (English, Russian) on XY LED Matrix, based on FastLED. |