To do so, the Arduino was set up to monitor the BUSY ... This is roughly in line with the limit of the ATMEGA328’s hardware serial port, which is capable of 2 million bits per second if ...

Above you can see [Hans’] creation next to the official Arduino USB-to-serial programmer ... board he assembled was too loose in the USB port, but he added some tape to the back to make it ...

This port is primarily used for connecting the board to the computer for tasks such as monitoring serial data received or ...

It's like a shrunken version of the Arduino Leonardo as it features the same ATmega32U4 microcontroller, micro-USB port, and pinouts ... and their serial RX/TX pins are on pins D0 and D1 ...