Updated README

Author: svenstucki

README.md

@@ -1,2 +1,17 @@
-binary-clock
-============
+Binary Clock
+============
+
+This repo contains the source files for my self made binary clock. It uses a TI
+BQ32000 real-time clock chip for time keeping, a TI TLC5928 LED driver for the
+LEDs and an Atmel AtTiny24A microcontroller to control it. I plan on writing a
+blog post on my website with more details about it soon. I will add a link
+here as soon as I finish.
+
+The pcb/ folder contains the schemtaic and board layout (made with EAGLE). The
+firmware and source code for the Atmel microcontroller can be found in the code/
+folder.
+
+The v1 board layout contains some errors. The footprint for the LDO is wrong and
+connects +3V3 to GND. Also I forgot to add a decoupling capacitor for the RTC.
+You can work around this by isolating the big tab  of the LDO from GND, the RTC
+functions without decoupling. Version 2 fixes those errors.