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Step 3: Write Pseudocode

The next step is to write pseudocode that attempts to walk through the program’s main loop. Pseudocode is just plain words used to explain the program. It shouldn’t be overcomplicated, but should sketch out the basic causes and effects you want to deal with in your program.

Yellow LED starts on
Monitor and store input from membrane keypad
Use special * and # characters to start and stop entering the password
If passcode is correct then
	Turn on green LED
Display “OPEN” on display
if passcode is incorrect then
	Turn on red LED
	Display “NOPE” on display