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This is the firmware and control software for a software-defined constant current (and flicker-free current-dimming) LED driver for dual-color (warm and cold white) LED panels. The hardware is based on the STM32F334 microcontroller, for more details about the hardware, see this repo.

Each node controls one panel and all nodes can be remotely controlled via a 50 kbps CAN bus. By default, the lamps synchronize the time over the CAN network and display a color timeline which resembles the color of daylight at a given location (see misc/calc-color.scm for the code generating those timelines). Each lamp can also be configured for another color profile individually from a central web frontend.

The following code is included from external projects and is subject to the respective license of that project:

• The Bootstrap project: Files in mgmt/ui/css/bootstrap and mgmt/ui/js/bootstrap
• The Flot and jQuery projects: Files in mgmt/ui/js/flot
• The STM32Cube SDK: Parts of the files in firmware/stm

All other code is (c) 2017 Florian Larysch and covered by the AGPL, see LICENSE.