MIAC Pass Code Entry System. Flowcode V5

[medelec35]

This Flowchart will be developed for another purpose, but in this state can be used as keypad pass code selection macros for your own projects.
Idea is set a default code (from 1 to 8 numbers) within a string at the start of the Flowchart. E.g "1234"
When program is sent to device the default Pass Code will be stored in EEPROM.
To enter Code using keys, just use up/down keys to get the flashing digit to correct value, then when each digit is at correct value just press OK
Each time you press OK, if more digits are required for pass code, a new digit will automatically appear.

Also there is and option to change from current code to a new code. If F1 is pressed, then current code will have to be entered first.
Then only if correct current code is entered, a new code can be entered.
Just use up/down keys to change value of the flashing number, then either press OK to add another number, or press F1 to lock what's currently displayed (including flashing number) to the new code.

Accidents do happen, so you will need to verify the new code. Now you will only need to use the up/down & OK buttons.
Also the red button allows you to remove the flashing number.
E.g when changing code and if you enter 567 and 7 is flashing and you only want to enter 56, then just press the red key and 7 will dissapear and the 6 will flash instead.
Just press F1 to change code to 56
When ok is pressed and a new number appears, it will have the value of 5.
Sounds fairly complex, but its very easy once you get the hang of it.

Martin