Walhalla_Klok

Software for the Arduino which runs the Walhalla clock.

Necessary libraries:

• https://github.com/PaulStoffregen/Time
• https://github.com/greiman/PetitFS

PetitFS requirements:

• Some options need to be defined, but these save both ram and flash at the cost of some functionality.
• PetitFS can only use 8.3 style filenames. Our configuration only supports FAT16 using uppercase filenames and has no support for folders.
• The usage of PetitFS has only been tested on a 328p based Arduino Uno.

(PetitFS) In pffArduino.h:

• SD_CS_PIN should be defined as pin 4

(PetitFS) In pffconf.h:

• Only enable _USE_READ to save flash
• Only enable _FS_FAT16 to save flash
• Disable _USE_LCC, disables the use of lowercase filenames, but saves both ram and flash
• _WORD_ACCESS can stay enabled, this uses less flash than disabling it