In summary, percentage-based control is supported. However, please note the following:

1. Before using percentage control, calibrate the controller first. You can do this by pressing both the up and down buttons on the smart roller controller simultaneously for 5 seconds, or by using the auto-calibration feature in the meross app.

2. Some older models (e.g., MRS100, Version 2.0) do not support percentage control due to hardware limitations."