SPI1 instead of SPI0 #72
Description
As RaspberryPi Zero uses SPI0 for display it seems to be interesting how to use other SPI interface. The task is complicated because of GPIO18 (used by the current design) is CE0 of SPI1, so there seem to be some interferences. Furthermore there is a conflict between the display and the RFID receiver with GPIO24 and with GPIO25. How to make this working?