Build a temperature IoT sensor with Raspberry Pi Pico & QuestDB

QuestDB is an open-source time-series database designed to handle demanding workloads with features such as ultra-low latency, high ingestion throughput, and a multi-tier storage engine, making it suitable for both hobby projects and large-scale applications like IoT devices and financial trading systems. The text describes how to set up a Raspberry Pi Pico as a temperature sensor node that can communicate with QuestDB, highlighting the Pico's low cost, onboard temperature sensor, and support for MicroPython, despite its limited memory and processing power. By leveraging QuestDB’s ability to handle high-speed data ingestion and using SQL extensions for time-based data manipulation, users can build scalable sensor networks capable of capturing, storing, and analyzing vast amounts of data. The guide emphasizes the ease of setting up a sensor mesh with the Pico and QuestDB, with potential applications for monitoring environments through various sensor types, and offers an overview of QuestDB's capabilities in handling time-series data, including out-of-order indexing and deduplication, making it suitable for a wide range of IoT and data-intensive use cases.