While the Arduino family of boards connect to your computer using a USB virtual serial port, the ATmega ones have an actual serial connection on-board. For instance, on the Nano there is an ...

treating the Arduino as a serial port and device. There's also a bit of calibration required for the servo, since each Teddy Ruxpin servo is a special snowflake with some minor variation in ...

However, it does require a quick patch to the Arduino library to make it work. Just gaining access to the additional UARTs isn’t hard. You simply use one of the additional serial port objects ...