This tutorial covers the basis of using the HDMI Shield. There are a few components bundled in the Mojo IDE that make encoding and decoding HDMI streams easier. This tutorial gives a basic example for each one.
This tutorial will walk you through how to upgrade your Mojo's bootloader to the new Arduino compatible bootloader. To do this you will need an ISP programmer. We recommend the AVRISP mkII, but any ISP programmer should work. You can even use an Arduino to program the Mojo if you have one.
On the Mojo there is a microcontroller that provides most of the core functionality. As we improve the firmware for the microcontroller by fixing bugs and adding new features, you can update the Mojo by following this tutorial. The microcontroller has a USB bootloader so it is easy to update yourself.
Subtraction almost doesn't need its own page. That is because if you remember your basic math you never actually need to subtract anything! Subtraction is really just an easy way to write add the opposite. When we subtract we are really not performing a special operation, but really we are just adding the opposite of the second operand.