pixoPython/pixo/wifi.py

# Setup network
import network
import creds
import time

from pixels import Pixo
from machine import Timer

WIFI_IMG = [(0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (255, 255, 255), (253, 253, 253), (255, 255, 255), (255, 255, 255), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (255, 255, 255), (0, 0, 0), (0, 0, 0), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (255, 255, 255), (255, 255, 255), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0)]

time_connected = time.time()

# We will attempt connections for this many seconds
MAX_WAIT = 15

# Setup the wifi connection
STA_IF = network.WLAN(network.STA_IF)
AP_IF = network.WLAN(network.AP_IF)

def is_connected(interface):
    if interface == STA_IF:
        return interface.isconnected()
    if interface == AP_IF:
        return (len(interface.status('stations')) > 0)

def connect(interface, interface_name, ssid, password):
    print("Configuring %s interface with credentials from creds.py" % interface_name)
    start_time = time.time()

    # Start the interface if it's not already
    interface.active(True)

    # Connect to the network
    if interface == STA_IF:
        STA_IF.connect(ssid, password)
        selected_color = (200, 40, 40)
    elif interface == AP_IF:
        AP_IF.config(essid=ssid, password=password)
        selected_color = (20, 10, 230)

    while not interface.isconnected():
        Pixo().blink_image(WIFI_IMG, selected_color)

        if time.time() - start_time >= MAX_WAIT:
            print("Took too much time to connect to %s interface" % interface_name)
            break

    if is_connected(interface):
        time_connected = time.time()
        Pixo().fill_image(WIFI_IMG, False).force_color((40, 200, 40))

if not STA_IF.isconnected():
    for network in creds.WIFI_NETWORKS:
        if STA_IF.isconnected():
            break
        connect(STA_IF, 'Standard', network[0], network[1])

# We check this twice to enable AP mode if we failed to connect
# Normally this happens if the password has been misconfigured,
# or if the device moves to a different location (more likely)
if not STA_IF.isconnected():
    # Disable STA_IF to stop serial spam
    # You can enable it again by doing `import wifi`
    # Followed by `wifi.STA_IF.active(True)` - Then you can call the `wifi.connect_standard`
    # method to try connecting again (after `creds.py` has been fixed)
    STA_IF.active(False)

    connect(AP_IF, 'Access Point', creds.AP_SSID, creds.AP_PASSWORD)

# If anything is connected, and it's been at least 30 seconds, clear the board
def timeout():
    if is_connected(STA_IF) or is_connected(AP_IF) and time.time() - time_connected > 30:
        Pixo().transition_image_dissolve()
        tim.deinit()

# Check if the timeout is satisfied, every 30s
tim = Timer(-1)
tim.init(period=30000, mode=Timer.PERIODIC, callback=lambda t:timeout())