Tix Clock Gems
This TIX clock implementation is a great first time project for beginners. Apart from visually pleasing, the clock is of practical use and keeps accurate time via it's 32Khz clock crystal. The construction is easy as there are only 4 breadboard wires involved.
At the same time it allows certain creativity in that 1) LEDs within the same group can be re-allocated for different patterns, and 2) the length of individual LEDs can vary as to different a personalized LED gem "landscape".
The TCG (Tix Clock Gems) demonstrates LED charliplexing in groups and usages of timers.
Tix Clock Gems works as a Tix clock, in that you tell time by counting the number of LEDs. For my layout, one single blue LED on top left of the constructindicates 10th of an hour. The top right group of green LEDs shows the hours (2nd digit).
The minutes are show at the bottom of the construct, the amber LEDs are the 10ths of minutes and the red LEDs represent the one's.
For 11:32, you will find a blue LED and one green LED lighted up for 11th hour, and 3 amber plus 2 red LEDs will indicate it's the 32nd minute.
The LEDs will altenate every second when possible. TCG will be put to sleep after 10 seconds.
All parts can be acquire from Ebay at very low price.