I have been working on Xbee s2C in API configuration over UART using python script. But, recently I want to switch from UART to SPI for the serial communication between Xbee and microcontroller. I use spidev python module for the start for SPI communication. Yet, when I transfer bytearray with API frame structure I am not getting the expected result to my microcontroller. What can be done? Can anybody suggest any python library for particular SPI communication over microcontroller?