User Manual

Just follow these directions to reload CircuitPython using bossac (https://adafru.it/Bed), which will erase and re-create

CIRCUITPY .

Running Out of File Space on Non-Express Boards

The file system on the board is very tiny. (Smaller than an ancient floppy disk.) So, its likely you'll run out of space but

don't panic! There are a couple ways to free up space.

The board ships with the Windows 7 serial driver too! Feel free to delete that if you don't need it or have already

installed it. Its ~12KiB or so.

Delete something!

The simplest way of freeing up space is to delete files from the drive. Perhaps there are libraries in the lib folder that

you aren't using anymore or test code that isn't in use.

Use tabs

One unique feature of Python is that the indentation of code matters. Usually the recommendation is to indent code

with four spaces for every indent. In general, we recommend that too. However, one trick to storing more human-

readable code is to use a single tab character for indentation. This approach uses 1/4 of the space for indentation and

can be significant when we're counting bytes.

Mac OSX loves to add extra files.

Luckily you can disable some of the extra hidden files that Mac OSX adds by running a few commands to disable

search indexing and create zero byte placeholders. Follow the steps below to maximize the amount of space available

on OSX:

Prevent & Remove Mac OSX Hidden Files

First find the volume name for your board. With the board plugged in run this command in a terminal to list all the

volumes:

Look for a volume with a name like CIRCUITPY (the default for CircuitPython). The full path to the volume is

the /Volumes/CIRCUITPY path.

Now follow the steps from this question (https://adafru.it/u1c) to run these terminal commands that stop hidden files

from being created on the board:

ls -l /Volumes