X-NUCLEO-IHM17M1 DC Motor Driver Expansion Board STMicroelectronics X-NUCLEO-IHM17M1 DC Motor Driver Expansion Board is a low-voltage three-phase brushless DC motor driver expansion board based on the STSPIN233 for STM32 Nucleo. The board provides an affordable and easy-to-use solution for portable motor driving applications like thermal printers, robotics, and toys. The X-NUCLEO-IHM17M1 is compatible with the Arduino UNO R3 connector and most STM32 Nucleo boards. The board is designed for six-step and FOC algorithms with single- and three-shunt sensing topology.