This is a MicroPython board
You can get started right away by writing your Python code in 'main.py'.
For a serial prompt:
- Windows: you need to go to 'Device manager', right click on the unknown device,
then update the driver software, using the 'pybcdc.inf' file found on this drive.
Then use a terminal program like Hyperterminal or putty.
- Mac OS X: use the command: screen /dev/tty.usbmodem*
- Linux: use the command: screen /dev/ttyACM0
Please visit http://micropython.org/help/ for further help.