We are making progress on our alarm clock / boom box project. Eli soldered the 220 ohm resistors to the cathodes of the LEDs for the hours and Addy soldered the common ground wire to the resistors, hot glued them to the clock face, and tested them with a 6V battery. I re-purposed an old POW3U prototype board for the 10 74HC595 shift registers we will need for the LEDs (they hate when I help!). We put together what we have of the cabinet so far, and it looks pretty cool. Not only that, it THUMPS! Tested it with Wildflower from The Cult. The kids are more enthused with seeing the progress.
The PCF8523 RTC breakout came in. I downloaded the RTC libraries from Adafruit and ran the example scripts. I am very impressed. I will definitely buy more for other projects. I connected it to an old CHIP pro I have and experimented with it just using i2cget commands reading the different registers and it seems to be an easy , straightforward RTC IC to use. It is really coming together.