Example ANS Files

Example: ANS files (SD card)

Goal: List .ans art/text files from an SD card and open one on screen.

Extra hardware

• SPI SD card module or shield
• Default chip-select pin is 4 (change chipSelect in the sketch if your wiring differs)
• A board with enough RAM — Mega is the sweet spot. Uno/Leonardo are skipped in automated builds because memory is tight.

Setup

1. Format the card (FAT is typical).
2. Copy one or more files ending in .ans into the card root.
3. Wire the SD module, set chipSelect if needed.
4. Upload ANSFileExample.
5. Open a terminal at 9600 baud.

How to interact

Action	Result
↑ / ↓	Move the highlight in the file list
Enter or Space	Open the selected file
Mouse click on a name	Open that file
On the file view: Enter / Space / click Exit	Return to the list

Limits (by design)

• At most 8 files are listed.
• Names longer than 24 characters are skipped (not cut off), so opening always uses a real filename.
• Only the first portion of a large file is shown (about 18 lines).

If init fails

You will see a red message about SD init. Check:

• Wiring and power
• Correct CS pin
• Card seated and formatted
• Shared SPI pins not conflicting with other shields