Is it possible to use the CTS/RTS(D2 and D3) for GPI if I am using Serial1 for UART Comms?
Yes. as long as you don't enable flow control you can use the RTS/CTS pins as GPIO even if you are using the serial port.
Is it possible to use the CTS/RTS(D2 and D3) for GPI if I am using Serial1 for UART Comms?
Yes. as long as you don't enable flow control you can use the RTS/CTS pins as GPIO even if you are using the serial port.