A library to drive the Serial Wombat Family by UART or I2C. The Serial Wombat is a Smart I/O Expansion chip for Arduino, Raspberry Pi, CircuitPython, native embedded systems, PC, or any other system that can communicate by UART or I2C. Learn more at www.SerialWombat.com . The Serial Wombat is open-source firmware on a microcontroller. The firmware is available at: https://github.com/BroadwellConsultingInc/SerialWombat