jwhendy

import cv2
import subprocess

### for reference, the output of v4l2-ctl -d /dev/video1 -l (helpful for min/max/defaults)
#                     brightness (int)    : min=0 max=255 step=1 default=128 value=128
#                       contrast (int)    : min=0 max=255 step=1 default=128 value=128
#                     saturation (int)    : min=0 max=255 step=1 default=128 value=128
# white_balance_temperature_auto (bool)   : default=1 value=1
#                           gain (int)    : min=0 max=255 step=1 default=0 value=0
#           power_line_frequency (menu)   : min=0 max=2 default=2 value=2

jwhendy

import dash
from dash.dependencies import Input, Output, Event, State
import dash_core_components as dcc
import dash_html_components as html


app = dash.Dash()
app.config.supress_callback_exceptions = True
app.css.append_css({'external_url': 'https://codepen.io/chriddyp/pen/bWLwgP.css'})

jwhendy

#!/usr/bin/env python

import datetime
import os
import math
import numpy as np
import dash
import dash_core_components as dcc
import dash_html_components as html
import pandas as pd

jwhendy

/*
 * Based on SpectrumAnalyzerBasic by Paul Stoffregen included in the Teensy Audio Library
 * Modified by Jason Coon for the SmartMatrix Library
 * Requires Teensyduino 1.20 or higher and the Teensy Audio Library
 * Also requires FastLED 3.1 or higher
 * If you are having trouble compiling, see
 * the troubleshooting instructions here:
 * https://github.com/pixelmatix/SmartMatrix/#external-libraries
 *
 * actual code found:

jwhendy

#include "FastLED.h"

#define REDPIN   5
#define GREENPIN 6
#define BLUEPIN  3

// blend() below can take two CRGB or CHSV colors
// CRGB color1 = CRGB(255, 0, 0);
// CRGB color2 = CRGB(0, 0, 255);

jwhendy

#include "FastLED.h"

// must use fastLED 3.1: https://github.com/FastLED/FastLED/tree/FastLED3.1
// fast led constants and initialize
#define DATA_PIN    9
#define LED_TYPE    WS2812B
#define COLOR_ORDER GRB
#define NUM_LEDS    48
CRGB leds[NUM_LEDS];

jwhendy

#include "FastLED.h"

// fast led constants
#define DATA_PIN    3        // change to your data pin
#define COLOR_ORDER GRB      // if colors are mismatched; change this
#define NUM_LEDS    28       // change to the number of LEDs in your strip

// change WS2812B to match your type of LED, if different
// list of supported types is here:
// https://github.com/FastLED/FastLED/wiki/Overview

jwhendy

[ Launch: Tributary inlet ] 8948529 by jwhendy