The PressurePen is a pressure sensitive stylus for iPad and Android tablets. The plan is to commercialize a more final, refined version as open source hardware. What you see here and on the PressurePen site is the Beta prototype – functionally complete, and ready to put in the hands of developers. The necessary code to incorporate into an iOS or Android app is free and open source also. The goal is to allow others to create compatible products and improve on my designs.
[Welcome, RetroMacCast listeners!]
This is my latest Frankintosh project – housing a G4 Mac Mini in the case of an Apple //c. From all outward appearances, a stock Apple IIc or //c with a little wear and tear. Inside, it sports a 1.4GHz G4 with a gigabyte of RAM. A far cry from its original 1MHz 65C02 and 128K of RAM.
Everything you see is still fully functional. The original keyboard is rewired and run through an Arduino (Teensy) so it can be used as a USB keyboard for the Mini. I’ve also maintained many of the original ports, and repurposed a couple for updated peripherals. For instance, the mouse/joystick port has been wired up to a USB port on the Mini. To plug into this, an M0100 mouse has been fitted with the guts of an optical USB mouse, wired to the original 9-pin connector.
To attach to the original Apple monochrome display, I built a VGA adapter that outputs monochrome NTSC via RCA. Instructions and pinouts for the adapter were found here. To adjust the sync and refresh rate, I use SwitchResX.
You can see a complete gallery below (via Flickr)
[flickr-gallery mode=”photoset” photoset=”72157628540220857″]
see the details, and more info about construction here: http://www.flickr.com/photos/15994009@N06/sets/72157605213095006/detail/
my latest creation, a Mac Plus G4. more images and build process description coming soon.