180 RGB LEDs driven by TLC5925 constant current LED drivers
each LED addressed separately (12x TLC5925 with 16 outputs each).
each colour adressed individually
4x 7 segment LED display
Atmega328P as MCU
DS1307 real time clock
Photoresistor (for adjusting brightness)
And DHT11 for temperature and humidity
Backup battery for clock
5V DC (eg USB)
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