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SUMMARY ======= This script subscribes to a topic defined in /etc/mqtt-pwm-lights/mqtt-pwm-lights.cfg, and adjust the PWM value on the configured pin (18 by defualt) on a Raspberry Pi. It requires the WiringPi library from https://projects.drogon.net/raspberry-pi/wiringpi/ as the gpio command is used to control the PWM values on the GPIO interface. Neither WiringPi SYSFS exporting or RPi.GPIO (Python library) support PWM at this point in time. When any change to the lighting level is required, it will ramp up or down to the desired level, creating a smooth lighting level change effect. INSTALL ======= # This needs automated and/or packaged up sudo echo "deb http://repo.mosquitto.org/debian wheezy main" > /etc/apt/sources.list.d/mosquitto-wheezy.list wget http://repo.mosquitto.org/debian/mosquitto-repo.gpg.key -O /tmp/mosquitto-repo.gpg.key sudo apt-key add /tmp/mosquitto-repo.gpg.key sudo apt-get update sudo apt-get install python-mosquitto git mkdir /etc/mqtt-pwm-lights/ git clone git://github.com/kylegordon/mqtt-pwm-lights.git /usr/local/mqtt-pwm-lights/ cp /usr/local/mqtt-pwm-lights/mqtt-pwm-lights.cfg.example /etc/mqtt-pwm-lights/mqtt-pwm-lights.cfg cp /usr/local/mqtt-pwm-lights/mqtt-pwm-lights.init /etc/init.d/mqtt-pwm-lights update-rc.d mqtt-pwm-lights defaults cp /usr/local/mqtt-pwm-lights/mqtt-pwm-lights.default /etc/default/mqtt-pwm-lights ## Edit /etc/default/mqtt-pwm-lights and /etc/mqtt-pwm-lights/mqtt-pwm-lights.cfg to suit /etc/init.d/mqtt-pwm-lights start LICENSE ======= See LICENSE file