This hack takes advantage of all of these aspects to bring you an Arduino controlled CGA monitor. One problem with experimenting with one of these monitors is that they are not that well documented.

All of the tools you need to work with the FPGA Arduino — the Vidor — are ... Once you run the sketch, you can open the serial monitor or any terminal at 9600 baud. There will be a message ...

The Arduino ... other wire (serial clock or SLC) is used to synchronize the data exchange via a pulsing signal. Combined, they allow two devices to send and receive a message using bits of data.