Pi GPIO for Node-RED

The node-red-node-pi-gpio package provides a set of Node-RED nodes for interacting with the General Purpose Input/Output (GPIO) pins of a Raspberry Pi. Utilizing the `RPi.GPIO` Python library, it enables flow-based control and monitoring of digital and Pulse Width Modulation (PWM) outputs, as well as digital inputs. The current stable version is 2.0.7. Releases appear to follow a milestone-based cadence rather than a strict schedule, with major version updates incorporating new features or significant changes. Key differentiators include built-in support for mouse and keyboard input detection and direct integration into the Node-RED visual programming environment, simplifying hardware interaction for IoT and automation projects on Raspberry Pi devices. It specifically notes an alternative, `node-red-node-pi-gpiod`, for more accurate servo control, indicating this package is better suited for general purpose digital and basic PWM applications.