STM32 Discovery Kits STMicroelectronics STM32 Discovery Kits are an affordable and complete solution for evaluating STM32 MCUs. The kits include the necessary infrastructure to demonstrate specific device characteristics. A HAL library and comprehensive software examples allow for benefiting from device features and added values. Extension connectors give access to most of the device's I/Os, and make the connection of add-on hardware possible. The kits are ideal for prototyping and feature an integrated debugger/programmer.