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|https://mryslab.github.io/pymata-express/firmata_express/] page describes how to install it on an Arduino, using the Arduino IDE. ---- [{Tag RaspberryPi Arduino}]