This page describes an experiment in using PyMata Express to communicate (using Firmata) between a Raspberry Pi and an ItsyBitsy microcontroller.

Installing PyMata Express on Linux/Raspberry Pi#

To install Pymata Express on Linux (including Raspberry Pi) and macOS computers, open a terminal window and type:

sudo pip3 install pymata-express

Installing Firmata Express on an Arduino#

The FirmataExpress page describes how to install it on an Arduino, using the Arduino IDE.