import time
import os
from datetime import datetime
from requests import request
try:
from rpi_ws281x import *
import RPi.GPIO as GPIO
from flask import Flask, render_template, request, redirect, url_for, flash, jsonify
import json
from argparse import ArgumentParser
except ImportError:
print('Some modules are missing. Try to install them with "pip3 install -r requirements.txt"')
exit()
# LED strip configuration:
LED_COUNT = 60 # Number of LED pixels.
LED_PIN = 18 # GPIO pin connected to the pixels (18 uses PWM!).
#LED_PIN = 10 # GPIO pin connected to the pixels (10 uses SPI /dev/spidev0.0).
LED_FREQ_HZ = 800000 # LED signal frequency in hertz (usually 800khz)
LED_DMA = 10 # DMA channel to use for generating signal (try 10)
LED_BRIGHTNESS = 255 # Set to 0 for darkest and 255 for brightest
LED_INVERT = False # True to invert the signal (when using NPN transistor level shift)
LED_CHANNEL = 0 # set to '1' for GPIOs 13, 19, 41, 45 or 53
def debug_print(message: str):
now = datetime.now()
current_time = now.strftime("%H:%M:%S")
print('[DEBUG]['+current_time+'] '+message)
def wheel(pos):
if pos < 85:
return Color(pos * 3, 255 - pos * 3, 0)
elif pos < 170:
pos -= 85
return Color(255 - pos * 3, 0, pos * 3)
else:
pos -= 170
return Color(0, pos * 3, 255 - pos * 3)
def rainbowCycle(strip, wait_ms=5, iterations=10):
for j in range(256*iterations):
if mode > 0:
break
for i in range(strip.numPixels()):
strip.setPixelColor(i, wheel((int(i * 256 / strip.numPixels()) + j) & 255))
strip.show()
time.sleep(wait_ms/1000.0)
def setColor(strip, color, wait_ms=10):
for i in range(strip.numPixels()):
strip.setPixelColor(i, color)
strip.show()
time.sleep(wait_ms/1000.0)
if __name__ == '__main__':
app = Flask(__name__)
@app.route('/')
def index():
return '''
Server Rack LED stripe
My Server Rack LED stripe control API
Please use the following links to access the API:
How to use the API:
/api/send: Send a SMSlist of parameters:
number: The phone number of the recipientmessage: The message to send
Example:
/api/send?number=01234567890&message="Hello World"
'''
@app.route('/mode', methods=['GET'])
def mode():
global mode
global power
global r
global g
global b
args = request.args
mode = str(args.get('mode'))
r = str(args.get('r'))
g = str(args.get('g'))
b = str(args.get('b'))
if mode is None:
return 'No mode specified'
elif mode == "":
return 'No mode specified'
elif mode == "0":
mode = 0
return 'Rainbow Cycle'
elif mode == "1":
if r is None or g is None or b is None:
return 'No color specified'
elif r == "" or g == "" or b == "":
return 'No color specified'
else:
mode = 1
return 'Color: '+str(r)+','+str(g)+','+str(b)
@app.route('/power', methods=['GET'])
def power():
if power == True:
power = False
return "Power off"
else:
power = True
return "Power on"
strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS, LED_CHANNEL)
strip.begin()
mode = 0
power = True
app.run(host='0.0.0.0', port=80, use_reloader=False, debug=True)
try:
while True:
print("running")
if power == True:
if mode == 0:
rainbowCycle(strip)
elif mode == 1:
setColor(strip, Color(int(r), int(g), int(b)))
time.sleep(1)
else:
setColor(strip, Color(0,0,0))
time.sleep(1)
except KeyboardInterrupt:
setColor(strip, Color(0,0,0))
GPIO.cleanup()