Misc.The Mini vMac binary shipping with Retropie 4.5 is version 3.3.3 which is now 6 years old.Power strip with at least 1 USB charging port.12" square plexiglass or larger, 1/8" or thicker.8" LCD panel with controller board and power supply.Raspberry Pi 3 Model B (build in wireless networking).This allows accessing a USB port from the Raspberry Pi (for a keyboard and mouse) and to turn the display on or off. That’s most of the highlights, I pretty much crammed everything into the case and screwed it together.įor finishing touches, I routed a panel-mount USB connector and the LCD button panel into the case’s rear expansion slot. I wanted it to look like the scanner from KITT on Knight Rider, so I taped a red gel over the back of the slot for the floppy drive and then mounted a Scroll pHAT HD behind the gel. Next, I turned the floppy drive into a light show. I connected the original leads from the speaker to the amp, used USB for +5v to power it and added a mini jack to connect to the Raspberry Pi. The second goal required a small +5v amp. This wiring was after the switch, so the switch on the back works as expected. The first was accomplished by gutting the original power supply and connecting the leads to a power strip (with USB power for the Raspberry Pi) directly to the original, internal power wiring. One was to use the original power connector and power switch on the rear of the case and second was that I wanted to use the original speaker for audio. Since I wanted this to be authentic, I had two weird requirements. It was my first Sugru experience, so it wasn’t perfect, but I was happy with it. The CRT was all curvy and the LCD flat, so I used Sugru to form a gasket to take up the cap around the display and up to the original cutout. I drilled holes for the original Mac’s screws and cut a hole for the controller board in the back and used the plexiglass to sandwich the display into the case very firmly. I cut out a piece of plexiglass to overhang the display and reach the original CRT mounting holes. It didn’t have any mounting hardware that matched a 1980s computer, so I improvised. The display fit within the round area cut out for the original CRT with the bezel overlapping the edge slightly. I ended up using an 8" LCD with a controller that accepted HDMI from eBay, listed as HDMI VGA 2AV LCD Controller Board 8" 800圆00 EJ080NA-05B LCD screen. I measured it and looked for an plain 8" LCD display. The first and most challenging thing was to find a display that fit. On the inside of the case, you can find the signatures of the artists who created this work. I basically just pulled out everything I could including the dirty old logic board. I had some long hex torx bits which included a T-15 that was long enough to get to the screws under the handle. The next project was to use one of the (many) dead Macintosh SE computers I have in my garage (don’t ask) to house a Raspberry Pi based emulated Macintosh. Lastly, when minivmac exits, run halt -p (shut down and power off the machine). The if make sure this only runs on the text-based console (not via ssh), then it runs minivmac as root (to access the framebuffer device) with the environment variables specified to tell it to use the framebuffer. Sudo SDL_VIDEODRIVER=fbcon SDL_FBDEV=/dev/fb1 $HOME/minivmac As the pi user, I added the following to the end of the $HOME/.profile file: export FRAMEBUFFER=/dev/fb1 I used the raspi-config utility to set up the display resolution, text-based console and to auto-login as the pi user. When you get the drivers for the TFT display, you end up with a framebuffer device ( /dev/fb1). I set it up to start Mini vMac upon boot and shut the machine down when it exits so you can hardly tell it’s not a Mac. The display is a little small, but it will run Mini vMac alright. I found someone to 3D print the case, ordered the magnets the plans were set up to use to adhere the pieces together from eBay (1/4" x 1/16" Neodymium Rare Earth N48 Magnets). I ran across this project for making a super cute mini Mac case for a Raspberry Pi. Resurrecting Old Macintoshes, Part II Sunday, 28 January 2018īeyond the original Macintosh computers I have working, I assembled a few alternative Macintoshes using Raspberry Pis to emulate the old hardware. Zenwheel»resurrecting old macintoshes, part ii
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