Hi all,
The 32U4 used on the Micro and Leonardo has the capability to use RTS/CTS hardware handshaking, but on the Arduino boards, the CTS line is used for the TX LED. Is there any way of changing this in setup() to enable full hardware serial flow control, or is it hard-coded in the bootloader or some Arduino library and cannot be changed?
Failing that, does anyone know of a serial port library which emulates hardware flow control on IO pins for the 32U4 or 328P?