Tag: basic

Moves the Atari 1200XL cartridge slot outside its recessed tunnel and adds switchable OS 6.42 and BASIC firmware.

The page reported three cards in stock on 2026-07-27. OS 6.42 adds bug fixes, high-speed SIO, faster floating point, CX-85 handling, WozMon, and cassette improvements. Its activity LEDs do not work when the computer has more than 64 KB, and some software is incompatible because the replacement OS runs from RAM; the front switch disables that OS when needed. Only the card is included.

Adds a directly programmed 8x8 LED display for graphics and animation.

Current kits offer several red, blue, or white display styles, or no matrix. A diffuser is included. Other 32x32 mm, 16-pin common-cathode matrices can be used if their electrical and physical layout matches.

Replaces the Atari XL or XE operating-system ROM with a switchless 32-image OS selector and high-speed SIO features.

The official page showed self-installation and professional-installation options in stock on 2026-07-25. The generic kit is for XL and XE computers except XEGS; the special 1200XL kit includes an XE MMU and internal BASIC upgrade. The 1200XL procedure is an advanced modification that can require desoldering and replacing ROM sockets, moving jumpers, adding wires and a resistor, and modifying or omitting the RF shield.

Adds eight pushbutton inputs and eight LED outputs.

The current listing is a complete kit, with a bare PCB offered through the vendor's grouped PCB listing.

Connects HD44780 character displays as a readable and writable RC2014 peripheral.

Current kit variants include several screen sizes or the driver alone. Contrast and backlight brightness are adjustable on the module except that the 2x8 display backlight is not adjustable.

Drives an optional 64-pixel RGB matrix or an external addressable-LED chain.

Both assembled and tested layouts are currently listed. The full-size version offers an optional 8x8 matrix and filter; the Short Board includes eight diffused pixels and headers for up to two matrices. Up to 128 pixels are documented, and third-party displays can differ in pinout and RGB byte order.