Inherit from SoftSerial and use software buffers for TX and RX. This allows the SoftSerial to operate in a IRQ driven mode. Overrides most (but not all) stdio functions as SoftSerial did

Dependencies:   Buffer SoftSerial

Dependents:   2014_Ensoul_Capstone F103RB_tcp_rtu_modbus_copy_v1_0 SDP_Testing Nucleo_SFM

Fork of BufferedSerial by Sam Grove

Todo: Write something here :)