Guido Cardinali

A Kotlin application to connect to an oximeter via BLE, exchange real-time data (heart rate, SpO2), and save or share results. It is made of:
• A layer built on top of the low-level Android APIs, implementing Kotlin flows for connection and data exchange.
• An application layer built using Jetpack Compose.

An app for contractors specializing in handyperson jobs from plumbing and landscaping to electrical, remodeling, and concrete work, allowing them to advertise their business, connect them to customers, and arrange home renovation jobs.

A POC of an innovative Android application, which took a video input from a USB webcam attached to the tablet's camera, that allows a doctor to remotely check up on patients' health, especially in critical cases of post-transplant surgeries.

A gaming application for Italy's most popular sports betting platform. I worked on the complete rewrite of the original app written in a cross-platform JavaScript framework to 100% Kotlin. I used Kotlin flows, coroutines, and MVVM.

An Android native app for remote patient monitoring, self-management of cardiorespiratory medical conditions, and lung capacity tracking.

The app connects via BLE to MIR devices and lets you perform real-time spirometry and oximetry tests like SpO2, both in stand-alone mode or a video call with your clinician.

It shows you visual feedback in real-time. The results of the maneuvers and the complex system of algorithms, calculate your lungs and heart parameters. You can visualize charts of your health over time and share the results with a PDF or a CSV file.

An Android native SDK that hides all the complexity of the BLE protocol and lets any developer, via a simple set of APIs:

• Handle the connection to MIR devices.
• Get the device's capabilities and enable or disable some of them.
• Perform real-time tests like spirometry FVC, SVC, oximetry, and EKG.
• Get results in information-rich yet straightforward classes ready to be saved into a local database.
• Calculate the results' acceptability and quality grade in compliance with all the relevant guidelines from the American Thoracic Society (ATS) and European laws.
• Update the device's firmware.

A .NET Windows application—plus ASP.NET Core Web API back end—that performs real-time video and audio calls between a clinician on the Windows side and patients on Android and iOS.

The application handles the appointment creation, edit and deletion, connection to WebRTC channels to start the video calls, and communication with the app via the data channel and a proprietary JSON-byte arrays protocol we invented.

An open-source, cross-platform desktop application written in Flutter and Dart for any Twitch streamer to:
• View, flag, and read (text-to-speech) chat messages in real-time
• Parse and respond to commands from users
• Send periodic broadcast messages in the Twitch chat
• Notify a Discord channel when the Twitch stream goes online and when the next scheduled stream will be

The application runs on Windows, macOS, and Linux with one codebase only.