Here on CircuitGizmos one of the popular products is the CGCOLORMAX2, or as we call it the ColorMax. The ColorMax is a VGA color-output retro computer that is a lot like a 1980’s home computer (TRS80, C64, etc) running on modern hardware.
The ColorMax is based on (and compatible with) Geoff Grahm’s Color Maximite design. This retro computer is very similar to the computers that sold in great number in the 80s. The ColorMax powers up to a BASIC prompt, much like those earlier machines. The BASIC is much more advanced, however. The ColorMax’s BASIC doesn’t require line numbers. It is closely compatible with
The ColorMax can be plugged into a VGA monitor (8 colors at 480×432 pixels) and a PS2 keyboard. The ColorMax has an SD card slot for up to 32G of program and data storage. The
More than just a fast and capable
A number of communications protocols are implemented. These include I2C, serial (RS232 and RS485 with a suitable driver chip), SPI, 1-Wire and CAN (with suitable driver). The ColorMax has an area on board where the support/driver chips can be installed.
The ColorMax can operate as a stand-alone
Here is a link to the language manual:
Next blog: Relay control.
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