Re: 1.2" 4-Digit 7-Segment Display w/I2C Backpack
While I was waiting for the Occidentalis download to finish, I reinstalled Wheezy and followed the tutorial and this time I got the colons to appear with no error messages. I swapped the 3.3v source for the 5v and the rest of it appeared. Not sure what was wrong with the state of my Pi before, but now it works. That fifth connection to V_IC doesn't appear to be necessary.
I will mention one fix to the code -- the setColon() method in Adafruit_7Segment.py turns both colons and the decimal point on (on this 1.2" display), however, writeDigitRaw(2, 0x2) turns on just the middle colon.
Thanks for the help.