60 Billion Lights: 2400 RGB LEDs + 120 Motors in Canvas Art Display #Art @McuOnEclipse
Erich Styger has build a colorful LED motion art display. The front is a painted canvas with a wooden frame. The canvas can be easily changed. Using a canvas is both lightweight and makes it a unique piece of art.
I named the project “60 Billion Lights” because the build includes 60 dual shaft stepper motors. Such stepper motors are used in automotive car dashboards, each of them with a resolution of 4350 steps per revolution. Added to each: Forty 24bit RBG LEDs creating more than 60 billion position and light combinations.
If not active, it looks like a ‘normal piece of art’ on the wall
The current firmware supports the following features:
120 individually controllable stepper motors (direction, speed, acceleration/de-acceleration, absolute or relative angles), using automotive dashboard dual-shaft motors to build one of the 60 units
15 controller boards with NXP LPC845 running FreeRTOS, connected by RS-485 protocol
Different clock hand modes: dual hand and triple hand mode
Two different font sizes for numbers and text
Displaying time, temperature, humidity and ambient light level
Configurable and extendable demos and intermezzos
Showing time in different modes: showing seconds, with/without frame, small/large, intermezzos
Four different weather display modes: sunny, cloudy, rainy, icy
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