Simulates a programmable scientific calculator with RPN input. Features a 10-digit LED display, four stack registers, and ten storage registers. Includes math, trigonometric, and statistical functions.
Display time using LED-style buttons representing values for hours, minutes, and seconds. Toggle between 24-hour and 12-hour modes. Set alarms, use countdown timers, and choose beep sounds. Customize button colors for visibility.
Manage marine and freshwater tanks with detailed database info on corals, fish, and invertebrates. Track livestock and expenses. Log water parameters and test results graphically. Add custom test parameters. Take notes for tank maintenance.
