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It started with the idea to make a snowflake, but since there seemed to be tons of other snowflakes and trees that I knew I needed to create something that wasn't already being done. The only other idea that came to mind was going to watch Christmas lights around town. So I set out to create a house that had LEDs that could be controlled by simple programming. It uses I2C commands to control 2 byte wide output ports. The microcontroller sleeps between each command, and for how long based on which mode is currently being displayed. Since it uses the watchdog timer, there are a few options for time that are explored in each mode.
It has the following modes
- ALL - (on)
- ALL - (flashing)
- Alternating even/odd - (flashing)
- Alternating even/odd - (on/off)
- Binary counter
- Grey code counter
- Knight Rider scanner (only middle row)
- Looping around roof
- Random (flashing)
- Random (on/off)
- Right shift in 1 until all on, then left shift in 0 until all off
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