i think because there is an sd card slot on the expansion board j3 is the chip enable for the sd card… so to spi another device you would need to chip enable on another pin im thinking… but i am not an expert
i think because there is an sd card slot on the expansion board j3 is the chip enable for the sd card… so to spi another device you would need to chip enable on another pin im thinking… but i am not an expert