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main.py
This script runs directly after
boot.py
and should contain the main code
you wish to run on your device.
lib
It is often a good idea to split out re-usable code into libraries. If you want to
create or use libraries created by others, you will need to create a
lib
directory
and put the library files in this. It is important that you put
.py
files directly into
lib
rather than creating a directory tree. By default MicroPython will not detect
any libraries within sub-directories.
For this example, you will just need to create a
main.py
file.
Now that the project structure is setup, you may wish to configure project specific settings for
Pymakr e.g. Which serial port to use. On Atom you need to click the
^
button on the
Pymakr pane, then click
Project Settings
. On Visual Studio Code you need to click the
All commands
button on the bottom of the windows, then click
Pymakr > Project Settings
.
This creates a file called
pymakr.conf
inside your project and populates it with default
settings copied over from your global settings. A detailed explanation of these settings can
be found here .
Controlling the on-board LED
Now that you have setup and configured your project, we can move on to programming your
module. The first thing we will need to do is import some libraries in order to interact with the
on-board LED. The Pycom firmware comes with a large amount of libraries for standard
functionality built-in. You can find out more about these in the API documentation . For this
example you will need to open the
main.py
file and add the following code:
import pycom
import time
This will import two libraries,
Pycom
which is responsible for Pycom specific features, such
as the on-board LED and
time
which is a standard library used timing and delays.
You may have noticed that when you power up your Pycom module, the on-board LED
blinks blue on a regular basis. This "heartbeat" is used as a way of know that your module
has powered up and started correctly. Before we can change the colour of this LED we need
to disable this heart beat. Below your imports you will need to add the following:
pycom.heartbeat( False )
1.3.3 Your first Pymakr project
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