 Configuring microprocessors and microcontrollers with customized pinouts streamlines the design process. However, creating the subsequent models can be a tedious, time-consuming task, and utilizing standard pin configurations can create confusion. Automatically generate the corresponding symbols, footprints, and 3D models with the integration of Ultra Librarian to the STM32 cube application. After configuring the pinout of the STM32 device, the corresponding CAD models can be downloaded through the Ultra Librarian widget. Multiple CAD formats are available including STEP, Altium, Cadence, Mentor, and more. Rather than the standard pinout configuration, Ultra Librarian provides models in which the pin names match the defined functions. Accelerate the creation of symbols, footprints, and 3D models for customized devices with the integration of Ultra Librarian to the STM32 cube application.