Inspired by a separate project I worked on over January and February of 2011, ACRIS is a system designed to provide precise control of high-powered LEDs. It consists of a set of LED controller boards, which drive LEDs using constant-current sink drivers and are controlled over an RF network by a transmitter. This hardware is very easily controlled via simple serial commands sent by software.
The goal for ACRIS is to provide a complete stack from base hardware to software to facilitate rapid construction and control of many kinds of lighting fixtures.
- Each LED controller supports up to 15 channels, with each channel sinking up to 360mA
- Each channel has 4096 levels of brightness
- LED controllers are around 2.3"x3.9"
- LED controllers have a bootloader, so one can program new firmware to all devices on the bus easily
- Host device commands the LED controllers over an RS-485 network (functional and mature) or over RF (under development)
The repository structure is as follows:
avr: firmware for the ATmega microcontrollers used in the LED controllersboards: schematics and PCBssw: software for configuring and controlling the system