I am interfacing rn-171 WiFly module with PIC18F27J13 chip. I want to save both USARTs available on the PIC for other purposes.
I am wondering whether I can just connect the Roving SPI pins to the PIC uc, to bring or activate WiFly command mode by sending $$$ to WiFly over SPI without any need to connect UART pins.
If so, what could be a reasonable simple schematic for the pins connection. Thanks