Adafruit 8x8 LED Backpacks

I purchased this Small 1.2" 8x8 Ultra Bright Square White LED Matrix + Backpack.

I got it working with an Arduino to make sure everything is wired up correctly and it does work.

https://vine.co/v/eLx5pq7zAhK

I believe it uses the MAX7219 driver but can't get it to work. Adafruit uses I2C and the Espruino library uses SPI.

Is there any raw I2C code I can use to test it out. I've wired up the - + to GND and 5v, and C to B6 and D to B7.

I2C1.setup({scl:B6, sda:B7});

Thanks