Any one have info on what pinouts are used to connect the Skywriter to an Arduino Uno?
You need to connect the Data (SDA) and Clock (SCL) lines to the I2C bus of the Arduino Uno. That’s the two pins right after GND and AREF next to the 6-pin header: http://pighixxx.com/unov3pdf.pdf
The “TRFD” and “Reset” pins mentioned in the code example can be whatever pins you like.