STEVAL-MKI222V1 Adapter Board STMicroelectronics STEVAL-MKI222V1 Adapter Board is designed to demonstrate the LIS2DU12 MEMS. The STEVAL-MKI222V1 provides an effective solution for fast system prototyping to incorporate directly within the user’s application. The STEVAL-MKI222V1 plugs into a standard DIL 24 socket. The board offers a full LIS2DU12 pinout and embeds the required decoupling capacitors on the VDD power supply line.