Regarding the serial communication protocol that I need to use to read and write the data from the module as the st4sim_200m has only one serial I/o port.
in the datasheet it is mentioned that to use SPI . but i not able to find the spi peripheral's like MOSI and MISO pins on the st4sim .
Can i use stm32f103 nucleo-64 board. for interfacing with st4sim.
