Inspired by a “Make:” project, I partnered with a friend to design and fabricate a quirky digital alarm clock that spells out the current time. Check out the youtube video at the end of this post for a demo of the clock’s functions.
I was responsible for the electronics and fabrication; my partner programmed the Arduino to control the clock. Take a look at his beautiful github compilation here.
We used a DS1307 RTC to “remember” the time – I modeled the circuit in Protel and fabricated it on a PCB milling machine, and we used two MAX7219 LED drivers to control the individual LEDs from an Arduino. I used autoCAD for the lettering layout, and fabricated it on a lasercutter.
More technical information can be found in our PowerPoint presentation – make sure you click on the “Notes” button at the bottom right!