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Example: Display Internet connectivity status
This example shows how to use BlinkStick as an Internet connectivity status indicator.
Script works by checking connectivity to Google DNS server. When connection can be established, BlinkStick will light up green. When connection is not available, BlinkStick will start pulsing red and will turn green back again when connection is reestablished.
import socket import time from blinkstick import blinkstick """ This functions checks connection to Google DNS server If DNS server is reachable on port 53, then it means that the internet is up and running """ def internet_connected(host="18.104.22.168", port=53): """ Host: 22.214.171.124 (google-public-dns-a.google.com) OpenPort: 53/tcp Service: domain (DNS/TCP) """ try: socket.setdefaulttimeout(1) socket.socket(socket.AF_INET, socket.SOCK_STREAM).connect((host, port)) return True except Exception as ex: pass return False # Find first BlinkStick led = blinkstick.find_first() # Can't do anything if BlinkStick is not connected if led is None: print "BlinkStick not found...\r\nExiting..." else: try: # Store value of last state in this variable connected = False while (True): if internet_connected(): # If previously internet was disconnected, then print message # and set BlinkStick to green if not connected: print "Internet is up!" connected = True led.set_color(name="green") # Wait for 1 second before checking for internet connectivity time.sleep(1) else: # If previously internet connected, then print message if connected: print "Internet is down..." connected = False # BlinkStick pulse API call lasts for 1 second so this acts # as delay before next check for internet is performed led.pulse(name="red") except KeyboardInterrupt: print "Exiting... Bye!" led.turn_off()