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led-blaster

project inspired by pi-blaster and based on pigpio libary (http://abyz.co.uk/rpi/pigpio/) which uses a mix between hw and sw pwm.

the goal is to create a universal code in which you write settings and so on in FIFO style (just like pi-blaster). the following things are on our toDo-list:

  1. assign pins to led colors (i.e. 17 = blue led)
  2. enter desired fade mode (linear, exp., no fade)
  3. enter target brigthness for each led/for all rgbw leds (the program will then fade according to the fade mode
  4. option to connect a sound sensor
  5. some additional modes like continious fade to random color w/ defined speed etc.
  6. an alarm clock which fades on all/some leds slowly at a given time (sunrise simulation to wake up easily) (in coordination with some PHP code...)
  7. more to come...

Commands

echo them into /dev/led-blaster
e.g. echo w=1000 > /dev/led-blaster

  1. RGBW brightnesses:

    r = value //set redBrightness to value 0...RANGE
    g = value //set greenBrightness to value 0...RANGE
    b = value //set blueBrightness to value 0...RANGE
    w = value //set whiteBrightness to value 0...RANGE

  2. modes: mode = value //choose mode obviously

    options:
    mode0 = fade to fixed brightness
    mode1 = fade to random colors

  3. time: time = value select the time (in ms) needed until fade is completed

Installation of a Release

  1. create a new folder: sudo mkdir /opt/led-blaster
  2. move the downloaded binaries to this folder mv led-blaster-pre /opt/led-blaster
  3. now find the DAEMON_INITFILE from the source code .zip and do the following
sudo mv DAEMON_INITFILE /etc/init.d/led-blaster #move initfile
sudo chmod +x /etc/init.d/led-blaster #make it executable
sudo update-rc.d led-blaster defaults #update

You have successfully added led-blaster to your autostart!

Compiling led-blaster

Install pipio libary

led-blaster needs the pigpio libary to install it, go to your home directory with cd (or wherever you want to install it) and run:

wget abyz.co.uk/rpi/pigpio/pigpio.zip
unzip pigpio.zip
cd PIGPIO
make
sudo make install

Install webserver (apache) and led-smarthome

led-blaster assumes you have a webeserver running and the led-smarthome php files stored there. e.g. the information which pins are actually used is stored there. so please install the webserver and led-smarthome first. ##Install led-blaster we recommend to install led-blaster at /opt/led-blaster. therefore you have to go to /opt via

cd /opt

then clone this repository (run with sudo if necessary)

git clone https://github.com/smart-led-suite/led-blaster

now into the led-blaster folder and compile the program:

cd led-blaster/
make

now the program is ready. in order to run it everytime your pi boots,just do the following:

sudo mv DAEMON_INITFILE /etc/init.d/led-blaster #move initfile
sudo chmod +x /etc/init.d/led-blaster #make it executable
sudo update-rc.d led-blaster defaults #update

Check if it is working

now reboot your pi and check with ps -C led-blaster-pre if led-blaster ist actually running.

Uninstall

if you delete /etc/init.d/led-blaster led-blaster is removed from autostart. you can then remove all the files and uninstall the pigpio_libary

Configuration

you can configure led-blaster in various ways:

  1. the global config file:
  • open the config file at /etc/led-blaster.ledconfig (e.g. sudo nano /etc/led-blaster.ledconfig)
  • you have to set the serverPath to the directory where you've installed led-smarthome
  • edit the values then restart led-blaster / reboot your pi.
  1. configuration via led-smarthome
  • visit [your_pis_ip_adress]/configuration.php
  • change the pin and the colorinformation etc. of the leds.
  • NOTE: changes to the pins only apply AFTER REBOOT.