Rasp-navidad is a project made to animate your crib or your Santa Claus village with light effects to the rhythm of music, instead of the usual boring fixed lights.
The code is ready to use, just download, install and configure it :)
| Raspberry |
|
| relay 4-channel raspberry pi |
 (min. 3-channel)
|
| 3-way audio filter pi |
 (I used only one way to get the white color) (Optional)
|
| rgb led strip lights 12v |
 (led strip with 12V and 4 pins)
|
| 3.5 mm Male to Male Stereo Audio Cable |
|
| radio with aux input and one output for the speackers |
|
| IRLZ34 N-Channel MOSFET |
|
| Breadboard for the Raspberry Pi |
|
| raspberry pi gpio male to female jumper |
|
| raspberry pi gpio male to male jumper |
|
| Power Supply Adapter Power Adapter AC 100-240V to DC 12V with Plug Power Converter Power Supply LED Driver |
|
We have designed the scheme that needs to be replicated, to make it work properly:
Scheme with audio filter. With it you can control each led from the led strips, so you get a more colorful effect.
With this scheme all the colors of the LED are combined. The color you get is only white.
I used the Raspberry Pi OS Lite with version 10.6, but the script should work with all Linux operating systems (It has not been tested with the various operating systems).
You must download the project in your raspberry. One possible way is to use the git to clone it in the raspberry.
Git installation: You must have installed the git on your raspberry to clone the repository. If you have not installed it, please run the follow command:
apt-get update & apt-get install git
After the installation, you can clone the repository in your raspberry. To make it, please show this doc:
After the cloning the project, you can install the rasp-navidad.
In the folder you find the file install.sh, with it you can install the script simply by starting the installation process.
Please run the follow command:
sudo ./install.sh
If you can not start the file, please check if you have the permissions to execute the file.
After installation you can verify that the script has been installed by checking in location:
/usr/script/rasp-navidad
In this position you need to modify the config.py file to set the GPIO pins that will be used. What you must change in the file:
pid = dict(
blue=<pin number>,
red=<pin number>,
green=<pin number>,
)
It corresponds to the connection between the raspberry and the relay for direct control of the led strips.
relay = dict(
blue=<pin number>,
red=<pin number>,
green=<pin number>,
)
It corresponds to the connection between the rasbperry and the relay for relay control.
In the main folder (default /usr/script/rasp-navidad/) there is the 'audio' folder. In this location you can insert the mp3 files, that you wish use.
The audio files can be set differently:
- yellow: This files are used with the random function. if you set a number at the beginning of the file name, it will be embedded in the list of random music files. The format is [number]_name_of_the_file.mp3
- blue: You want to select the file you want to use each time you start the script. Simply enter the number of the file name
- red: You can exclude the file from the list of random music files, and it can be used directly by entering the file name
- white: You can exclude the file from the list of random music files, and it can be used directly by entering the file name. If you use the function lightsEffectWithGPIO, you have to insert the color of the pins you want to use, inserting them in an array.
- orange: You can exclude the file from the list of random music files, and it can be used directly by entering the file name. If you use the function lightsEffectWithoutGPIO, you do not have to enter any color pins.
You can insert as many songs as you want, but you must remember to edit the code in the main.py file
The following items need to be modified:
- Change the effectSelector function in the main.py file by entering for each if:
- onRelay([relayBlue, relayRed, relayGreen]):
- Insert in the array the relays you want to activate
onRelayis always in combination withlightsEffectWithGPIO
- lightsEffectWithGPIO("[filename]"/str(self.utils.setRandomRange())/str([int]), [ledRed, ledBlue, ledGreen])
- You can insert in the array the leds you want to activate/use to make the sunrise and sunset effect.
- offRelay([relayBlue, relayRed, relayGreen])
- Insert in the array the relays you want to deactivate
offRelayis always in combination withlightsEffectWithoutGPIO
- lightsEffectWithoutGPIO("[filename]"/str(self.utils.setRandomRange())/str([int]))
- Do not insert the LEDs, because they will be activated to the rhythm of the music.
- onRelay([relayBlue, relayRed, relayGreen]):
The script is ready to be used.
Two cronjobs were installed in the crontab to activate and use the script, as well as to automatically remove the log files after 7 days. It can be modified at any time by opening the crontab with:
crontab -e
A log file is created. You can find it in:
/var/log/rasp-navidad-logs/rasp-navidad_yyyymmdd.log
Creative Commons Attribution 3.0 International License (CC BY 3.0)