Please Help I need code

Part 1 : Write an Energia sketch that measures how long the on-board push button has been depressed. Output the duration of the button press to the serial monitor window.

Part 2 : Modify your Energia sketch from Part 1 to decipher if the button press corresponds to a dot or a dash. For each button press, the serial monitor window should output if a dot or a dash was received.

Part 3 : Modify your Energia sketch from Part 3 to group dots and dashes into letters. Based on the time between button presses, the serial monitor window should output groups of dots and dashes that belong with a single letter. The serial monitor should show clear separations between different letters.

Part 4 : Modify your Energia sketch from Part 3 to convert the dots and dashes into the corresponding letter. The serial monitor window should output the letter.