The article explains how to add support for an I2C device (specifically a BMP280 sensor) to your board using NuttX. It details the necessary steps to modify the code and configuration files, such as copying existing files for similar devices and making changes in the initialization process. The writer also includes clear instructions on wiring the BMP280 sensor to the Raspberry Pi Pico and configuring NuttX to use it effectively. An interesting point is the explanation of the common driver directory solution to avoid code duplication for boards of the same chip family. Overall, it provides a comprehensive guide for integrating the BMP280 sensor into your board.
https://www.EmbeddedRelated.com/showarticle/1668.php