Pi VU Meter for 3D Xmas Tree

xmastree.py

#!/usr/bin/env python
import pivumeter
from signal import pause
from gpiozero import LEDBoard
from time import sleep
from random import shuffle

MAX = 65535.0

class Xmas(pivumeter.OutputDevice):
    def setup(self):
        self.busy = False
        self.tree = LEDBoard(*(2, 19,16,25,27,11, 17,4,8,5,26,13,9, 18,20,24,22,15,6,12, 23,10,14,7,21), pwm = True)
        self.leds = [0] * 5
        self.blink()

    def normalize(self, number):
        return max(float(format(number/MAX, '.1f')), 0.05)

    def display(self):
        self.busy = True
        values = [self.leds[0]] + [self.leds[1]] * 5 + [self.leds[2]] * 7 + [self.leds[3]] * 7 + [self.leds[4]] * 5
        self.tree.value = values
        sleep(0.025)
        self.busy = False

    def display_fft(self, bins):
        if self.busy: return
        bins = bins[:(len(self.leds) - 1)];
        self.leds = [self.leds[0]] + map(lambda x: self.normalize(x), bins);

    def display_vu(self, left, right):
        if self.busy: return
        vu = left + right
        self.leds[0] = self.normalize(vu)
        if vu == 0:
            if self.blinking != True:
                self.blink()
        else:
            self.blinking = False
            self.display()

    def cleanup(self):
        for led in reversed(self.tree.leds):
            led.off()
            sleep(0.1)

    def blink(self):
        self.blinking = True
        leds = list(self.tree.leds[1:])
        shuffle(leds)
        self.tree[0].on()
        for led in leds:
            led.pulse()
            sleep(0.05)

pivumeter.run(Xmas)
pause()

Pi VU Meter for 3D Xmas Tree

Small piece of software to blink leds in 3D Xmas Tree from The Pi Hut to the rythm of music.

How to

Install git and gpizero python library if you haven't already
sudo apt install git python-gpiozero
Follow this instructions to install Pi VU Meter: Python Front-end
(this should do the trick)

sudo apt install python-gpiozero
git clone -b devel https://github.com/pimoroni/pivumeter
cd pivumeter
setup.sh socket
cd ./python_server/library
sudo python setup.py install

Download this file (preferably in some other directory, so do eg. cd ~ first)

wget https://gist.github.com/roblan/1a373b5a3414a464b53a140f55dab058/raw/0406ff9b751ef4dca28697af7e2614bdc18e8591/xmastree.py

Run it
python ./xmastree.py

Play some music & enjoy :)

Hi!

Sorry but I need som help; I'm almost a complete newbie in programming but I'm eager to learn...

What steps do I need to perform to get this working on my 3DXmas tree? The error message I receive is: ImportError: No module named 'pivumeter'

If you could spare me some of your time I appreciate your efforts! Thanks in advance!

@Sponkenberg You have to install pivumeter (and gpiozero) first :)

sudo apt install python-gpiozero
git clone -b devel https://github.com/pimoroni/pivumeter
cd pivumeter
setup.sh socket
cd ./python_server/library
sudo python setup.py install