STEVAL-MKI219V1 Adapter Board STMicroelectronics STEVAL-MKI219V1 Adapter Board is a demonstration and development platform for the LPS22CH High-Performance MEMS Nano Pressure Sensor. The STEVAL-MKI219V1 Adapter Board provides an effective solution for fast system prototyping and device evaluation directly within a user’s application. The STEVAL-MKI219V1 plugs directly into a standard DIL 24 socket.