Explore software development tips and tricks for building lightweight IoT & real-time telemetry applications with Azure Cosmos DB, Azure IoT Hub, Azure Stream Analytics, Azure Synapse Link for Azure Cosmos DB, and Microsoft Power BI. IoT with real-time device telemetry is a use case Azure Cosmos DB is uniquely suited to support, due to its elastic scalability, high-availability, and ability to ingest massive amounts of data from various sources. Mustafa Branch and Mark Brown walk through use case diagrams, explain how data flows throughout the cloud application architecture, and explore the relevant Azure Cosmos DB features and capabilities for this use case.