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Pi VU Meter for 3D Xmas Tree
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#!/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() |
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@Sponkenberg You have to install pivumeter (and gpiozero) first :)