hi, Has anyone tried mbed nucleo boards which are having similar Arduino pins ? can we connect arduino sheilds to mbed devices since they support Arduino pins ?
Well, the STM32F chips are 3V parts, but usually have a fair number of "5V tolerant" IO pins. You probably need to check the individual Nucleo board documentation (and/or schematic/datasheet) to make sure that it has 5V tolerant pins connected to the arduino shield connectors (assuming that you're using a 5V arduino shield.)
Also, the Nucleo I have is missing the ISP connector, which is used for SPI connectivity to some shields.