import subprocess import neopixel import requests import time import paho.mqtt.client as mqtt from getmac import get_mac_address import board SERVER_IP = '192.168.0.1' SERVER_PORT = 5000 # Dynamically obtain the MAC address of the WLAN interface wlan_mac_address = str(get_mac_address(interface="wlan0")) # Replace with the GPIO pin connected to the data input of the WS2812B LED strip LED_STRIP_PIN = board.D18 global LED_COUNT LED_COUNT = 30 # Global variables for LED strip control global strip strip = neopixel.NeoPixel(pin = board.D18, n = LED_COUNT, auto_write = True) def register_tube(): # Register or reauthenticate the tube with the server try: response = requests.post(f'http://{SERVER_IP}:{SERVER_PORT}/register_tube', data={'mac_address': wlan_mac_address}) print(response) data = response.json() if data.get('success'): print('Tube registered successfully.') else: print(f'Registration failed: {data.get("message")}') except requests.RequestException as e: print(f'Registration failed: {e}') def get_assigned_params(): try: response = requests.get(f'http://{SERVER_IP}:{SERVER_PORT}/get_assigned_params/{wlan_mac_address}') data = response.json() if data.get('success'): return data.get('universe'), data.get('dmx_address') else: print(f'Failed to fetch assigned parameters: {data.get("message")}') return None, None except requests.RequestException as e: print(f'Failed to fetch assigned parameters: {e}') return None, None def is_connected_to_wifi(): output = subprocess.check_output(['iwgetid']).decode() return output.split('"')[1] def update_led_strip(rgb_values, pixel, strip): strip[int(pixel)] = rgb_values def on_message(mqttc, obj, msg): global rgb_values_list rgb_values_list = eval(msg.payload.decode()) if __name__ == "__main__": # Connect to Wi-Fi if is_connected_to_wifi() is not None: # Register/reauthenticate the tube register_tube() time.sleep(1) mqttc = mqtt.Client(mqtt.CallbackAPIVersion.VERSION2) mqttc.connect("192.168.0.1", 1883, 60) mqttc.on_message = on_message mqttc.subscribe("tube-"+str(wlan_mac_address)+"/pixel_colors", 0) global rgb_values_list rgb_values_list = eval("['[0, 0, 0]', '[0, 0, 0]', '[0, 0, 0]', '[0, 0, 0]', '[0, 0, 0]', '[0, 0, 0]']") mqttc.loop_start() # while True: # try: # for pixel in range(5): # update_led_strip(tuple(eval(rgb_values_list[0])), pixel, strip) # for pixel in range(5, 10): # update_led_strip(tuple(eval(rgb_values_list[1])), pixel, strip) # for pixel in range(10, 15): # update_led_strip(tuple(eval(rgb_values_list[2])), pixel, strip) # for pixel in range(15, 20): # update_led_strip(tuple(eval(rgb_values_list[3])), pixel, strip) # for pixel in range(20, 25): # update_led_strip(tuple(eval(rgb_values_list[4])), pixel, strip) # for pixel in range(25, 30): # update_led_strip(tuple(eval(rgb_values_list[5])), pixel, strip) # except KeyboardInterrupt: # for led in range(LED_COUNT): # update_led_strip((0, 0, 0), led, strip) update_led_strip((255, 255, 255), 1, strip)