1. Next Gen GUI Concept
Aaron Cardenas, 21/10/2008

2. Topics
Navigational Functions

3. Navigational Functions
Back / Escape / Abort / Exit
Return to previous screen
Abort change
Enter Alarm menu from main screen if alarms are present (soft-key?)
Forward / Menu / Accept / Enter
Enter selected menu
Edit selected setpoint
Accept changes
Move cursor to the right while in edit mode
Up & Down / Scroll
Scroll through menu items
Increase / Decrease editable value (speed sensitive)
Switch between different review screens when on the main screen
Back (Long Press)
Return to the main screen from anywhere in the interface

4. Topics
Navigational Functions
Conceptual Screens

5. Splash Screen Displayed when controller is powered on. Animated?
No button response.

6. Main Screen Multiple Review Screen Pages Back Forward Scroll (Up/Down)
Voltage, Load Current, Battery Current
System Temperatures
Input Status, etc.
Back
Enter the alarm menu if alarms are present, otherwise, event log?
Forward
Enter the main menu.
Scroll (Up/Down)
Switch between the different review pages.

7. Main Menu Multiple Pages (if needed) Back Forward Scroll (Up/Down)
Custom Icons for each menu item.
Back
Return to main screen
Forward
Enter the selected menu
Scroll (Up/Down)
Highlight the different items.

8. Sub Menu List of editable items, sub menus, and review items. Back
Return to previous screen
Forward
Edit the selected item, enter the selected sub menu.
Scroll (Up/Down)
Highlight the different items.

9. Review Menu Table list of review items Back Forward Scroll (Up/Down)
List of modules (rectifiers, lvd, converters, etc)
Event log
Back
Return to previous screen
Forward
Display detailed information of selected item (FW, Serial, Model, etc)
Scroll (Up/Down)
Highlight the different items.

10. Edit Screen Edit Values Back Forward Scroll (Up/Down)
Numbers, Lists, Login, String, Date/Time.
Back
Cancel Change
Move cursor left when applicable (Login, String). If cursor is at the beginning then cancel change.
Forward
Apply change
Advance cursor when applicable (Login, String). If cursor is at the end then apply change.
Scroll (Up/Down)
Increment / Decrement value
Speed sensitive

11. Topics
Navigational Functions
Conceptual Screens
Hardware Ideas

12. Button & Rotary Encoder w/ Push Button
Simple
Compact
Encoder makes it easy to navigate menus and adjust values without repetitive button presses.
Integrated push button and rotary encoder is convenient.
Cons:
When entering text you have to move through each digit in order to accept the change and vice versa for canceling a multi-digit change.
2-dimension navigation is probably not recommended. (2-dimensional navagation may add a layer of complexity that is not needed)
Integrated Push encoder adds cost.

13. 2 Buttons & Rotary Encoder
Pros:
Slightly more intuitive initially.
Lowest cost option.
Cons:
Slightly more cumbersome to move your fingers from the encoder to the forward button during navigation in the long run.

14. Capacitive Touch Slider
Slider can be used in place of the up/down buttons.
Reduces repetative button presses.

15. 2 Buttons & Scroll Wheel Different feel than the encoder.
Similar to the scroll wheel on a mouse.

16. Joystick Encoder
Similar interface to the one used in the automotive industry.
Encoder can be shifted left/right/up/down, pressed, and rotated. (7 possible functions)
Cons:
Too many functions can cause confusion to the user.
Up/Down is redundant.
Right/Press is redundant.

17. Topics
Navigational Functions
Conceptual Screens
Hardware Ideas
Notes

18. Notes
Speaker
beeps for input feedback on button presses
alarm when applicable (any button press deactivates audible alarm)
Vertical soft-keys could possibly be used on the right side of the screen.
Screensaver / Low power mode after configured duration
Any button press wakes the screen
When slides of this presentation are printed normally the screen should be close to actual size (3.5”) for reference.
1-Dimensional menu system is easier to navigate over the phone and allows for larger font size in general.
Login from anywhere feature.

19. Previous Concept

20. Actual Implementation