These instructions are for the Version 1.5 board with an acrylic case (both “Standard” and “Pro”.) If you aren’t sure what board you have, take a look at this page: What Kind of Kit Do I Have?

I’m no longer publishing an HTML version of the assembly instructions. It was difficult keeping up with three versions of instructions (downloadable PDF, printed manual, and HTML version.) Instead there will be one PDF version that you can download below. This is the same PDF that will be sent to the printer for the spiral bound hard copies.
Download Assembly PDF

Your Arduino will arrive pre-programmed, but you may have to upload the software at some point.  You can do that by following the instructions on this page.

You also would have received a Micro SD card with disk images. If you’d like to download the contents of that card again, you can download this archive.

The manual mentions David Hansel’s documentation. You can download that here.

If you are looking to upgrade your existing version 1.4 kit (in the bamboo box) you can see those instructions here.


Here’s where I’ll add a few items that did not make it into the manual:

  • You’ll notice there’s a notch on the rear panel. That notch should face to the right (as you’re looking at the back of the case.) When you install the I/O expansion board, you’ll see where it fits.
  • If you are building the Standard kit and have the new 1.5.1 version (printed on the lower right of the circuit board), you will need to add a couple jumpers to use the Bluetooth module.

    You can either solder a couple wires as the jumpers, or add a couple jumper pins and put shunts over the pins.

Hey! Why is my PROT toggle not working?
To enable a second serial port on the Altairduino, it was necessary to “steal” a pair of pins from somewhere. It was determined that the PROT toggle was probably the least used, so it’s disabled. If you absolutely want the PROT toggle and don’t care about the second serial port, take a look at the documentation and search for “PROTECT”.

If you’re looking for a PS2 keyboard and/or a VGA monitor to use with your Altair-duino Pro, I can recommend these from Amazon. They’re inexpensive and they work fine for retro-computing:

  • I also like this LSLYA 8 inch TFT LCD Security Monitor. It’s small, light, and inexpensive (about $64) and it has a variety of inputs, including VGA, HDMI, composite, and component. Everything you need for almost all retro computing possibilities. Plus it has a 4:3 retro computing aspect ratio.