This let me monitor the speed in my program ... for the PC and converted it just now to the Raspberry Pi. The main change is the different serial port code needed by Linux and Windows.

Hands On The Raspberry Pi 500 and monitor have been released just in time for Christmas. The machine itself is an undeniably impressive bit of hardware, but the monitor is slightly puzzling.… ...

Lacking any keyboard or monitor connections ... [Adam] decided to make the board more accessible by adding a Raspberry Pi extended with an RS232 Hat. This add-on board comes with two serial ...

Moreover, both of the 4K60 micro HDMI ports on the Raspberry Pi are also exposed, which means that a triple-monitor setup is ... for audio and RS485 / RS232, commonly used in industrial applications.