Multi-instance software serial library for Arduino/Wiring
o Based on Arduino SoftSerial Library with added conditional compile for STM32Duino
o Usage documentation available at: https://www.arduino.cc/en/Reference/SoftwareSerial
The original AVR only source code can be found at https://github.com/arduino/Arduino/tree/master/hardware/arduino/avr/libraries/SoftwareSerial
License Licenses are documented in the files themselves.