Python 3 Check
We assume you already have Python 3 installed on your computer. Note we do not support Python 2 - it's deprecated and no longer supported!
At your command line prompt of choice, check your Python version with python3 --version
Install hidapi
From the command line, manually install hidapi with:
pip3 install hidapi
Install Blinka
To install Blinka and its dependencies, run:
pip3 install adafruit-blinka
Set Environment Variable
You'll need to set this variable every time before running CircuitPython code. To do this, we set the environment variable to BLINKA_MCP2221.,
You can set the variable by running:
export BLINKA_MCP2221="1"
Then, verify that the variable is set by running:
echo $BLINKA_MCP2221
Don't forget this step. Things won't work unless BLINKA_MCP2221 is set.
Check that Platform was detected
In the same terminal window you ran export BLINKA_MCP2221="1", run python3.
At the REPL, run:
import board
dir(board)
If you get no errors and see a list of all the pins available, you're good to go!
