The text outlines a demonstration project that combines Raspberry Pi and Timescale Cloud to create an IoT system capable of collecting and visualizing time-series data. It highlights the potential of using a Raspberry Pi as an edge device equipped with a photocell light sensor, which records light status at 5Hz and sends data to a TimescaleDB instance hosted in Timescale Cloud. This data is then visualized using a Grafana instance, also hosted in Timescale Cloud. The project was debuted at GlueCon 2019 and is scalable from a single Raspberry Pi to thousands of devices. The text provides detailed setup instructions, including the creation of TimescaleDB and Grafana instances, and offers resources for configuring the Raspberry Pi and photocell sensor. It concludes by encouraging readers to explore IoT applications using this setup and offers a promotional trial for Timescale Cloud services.