Mystat Auto Screen Dimming Capability

| Overview

The screen brightness on MyStat is controlled by an interaction-based algorithm.

• When the device detects no user interaction for 5 seconds, it automatically reduces the display brightness to a dimmed state.
• The dimmed state helps conserve display power while keeping the screen visible to the user.
• As soon as the user interacts with the device again—such as by touching the screen, navigating menus, or changing settings—the display immediately returns to its normal brightness level.

| Functional Behaviour

The dimming logic operates as follows:

Active State
While the user is interacting with the device, the display remains at normal operating brightness. This display is intact as long as the user in the screen and is trying to make the necessary modification.

Idle Detection
Once the user has exited the screen to the home screen post the change, the device waits for 5 seconds, and then the dimming kicks in.

Brightness Restoration
Any subsequent user interaction immediately restores the display to its previous active brightness level.

| User Experience Benefit

This behaviour ensures that MyStat remains responsive during active use while intelligently reducing screen brightness during inactivity. The result is a more efficient and user-friendly interface that preserves visibility without requiring any manual brightness adjustment.

| Local Control Override & its Effect on Screen Dimming 

Local Control Override

In connected mode, when the conditioning mode, fan speed, or setpoints are changed in quick succession, the local control override (LCO) combines those updates into a single payload and sends them together to the CCU.

The LCO is not transmitted immediately when the user exits the Fan Speed, Conditioning Mode, or Desired Temperature screens. Instead, if any control value has changed, the device waits 10 seconds before sending the LCO. Any additional eligible changes made during this 10-second window are also included in the same payload.

If a control is changed multiple times within the 10-second window, only the most recent value for that control is included in the LCO sent to the CCU.

Effect on Screen Dimming

While these local control changes are being made, screen brightness dimming is temporarily deferred.

Screen dimming begins only after:

• The first control change has been made.
• The user has returned to the home screen, and
• 10 seconds have elapsed.