Short build-lapse video of building up the front panel “matrix” used in BinBoo.  This isn’t a true LED matrix.  Instead it combining all of the LEDs into a common Anode, since the Cathodes are all controlled by individual outputs of the TLC5940.

I decided to wire up 16 LEDs, even though a binary clock only needs 11 or 12.  This gives some flexibility to other uses for the box, like a random sci-fi computer pattern.

Project Page:  BinBoo = Binary clock + Bamboo

Accurate RTC Shield with Kapton Stencil
Accurate RTC Shield with Kapton Stencil
For the past couple of weeks I have been working with the DS3231 Maxim. This chip is a I2C based RTC with an integrated temperature compensated oscillator and crystal.This means despite changing temperature conditions, it will maintain a very accurate track of time. If you’re interested in the first rev of the PCB, let me know. I have a few available. They are functional, however, the prototyping area came bad.I have a set of new ones with a proper prototyping area, reset button, and power LED in process.

Check out more on the  Accurate RTC Shield Project Page