RUI API Documentation
RAKwireless Unified Interface (RUI) is the standard interface defined to simplify the firmware development for the ecosystem of the hardware of RAK. RUI defines an API that abstracts the complexity of the hardware layer. Through the RUI API, users can control all the functionalities of the module without the need to deal with the complexity of low-level hardware protocols such as SPI, I2C, etc.
Check RUI API documentation