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It is not yet using any hardware SPI functionality.

I commented out all uses of the Serial library. As expected it still
doesn't compile, since the Serial library assumes SPI hardware of a
different MCU.

Bit banging is not the way to go.

This fixes the weird symbols that were randomly appearing.

This ensures that the pads get completely divided.

Since we always want it to be as small as possible.

Gonna have to upgrade to an ATtiny84 instead of a 44. Hopefully that's
enough.

This uses the Arduino IDE to build, but doesn't use a bootloader.