129 lines
3.1 KiB
Python
129 lines
3.1 KiB
Python
import time
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import network
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import ntptime
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import machine
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from stellar import StellarUnicorn
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from picographics import PicoGraphics, DISPLAY_STELLAR_UNICORN as DISPLAY
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su = StellarUnicorn()
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graphics = PicoGraphics(DISPLAY)
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# Default Brightness
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su.set_brightness(0.4)
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# You will need to create or update the file secrets.py with your network credentials using Thonny
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# in order for the example to update using the NTP.
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# secrets.py should contain:
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# WIFI_SSID = ""
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# WIFI_PASSWORD = ""
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try:
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from secrets import WIFI_SSID, WIFI_PASSWORD
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except ImportError:
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print("Create secrets.py with your WiFi credentials")
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WIDTH = StellarUnicorn.WIDTH
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HEIGHT = StellarUnicorn.HEIGHT
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rtc = machine.RTC()
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DAYS = ["Mo", "Tu", "We", "Th", "Fr", "Sa", "Su"]
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# Enable the Wireless
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wlan = network.WLAN(network.STA_IF)
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wlan.active(True)
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def network_connect(SSID, PSK):
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# Number of attempts to make before timeout
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max_wait = 5
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# Sets the Wireless LED pulsing and attempts to connect to your local network.
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print("connecting...")
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wlan.config(pm=0xa11140) # Turn WiFi power saving off for some slow APs
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wlan.connect(SSID, PSK)
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while max_wait > 0:
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if wlan.status() < 0 or wlan.status() >= 3:
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break
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max_wait -= 1
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print('waiting for connection...')
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time.sleep(1)
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# Handle connection error. Switches the Warn LED on.
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if wlan.status() != 3:
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print("Unable to connect. Attempting connection again")
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# Function to sync the Pico RTC using NTP
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def sync_time():
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try:
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network_connect(WIFI_SSID, WIFI_PASSWORD)
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except NameError:
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print("Create secrets.py with your WiFi credentials")
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if wlan.status() < 0 or wlan.status() >= 3:
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try:
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ntptime.settime()
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except OSError:
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print("Unable to sync with NTP server. Check network and try again.")
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def init():
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sync_time()
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def draw():
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# Pens
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RED = graphics.create_pen(120, 0, 0)
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WHITE = graphics.create_pen(255, 255, 255)
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current_t = rtc.datetime()
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# Set the pen to Red and clear the screen.
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graphics.set_pen(WHITE)
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graphics.clear()
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# Measures the length of the text to help us with centring later.
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day_length = graphics.measure_text(DAYS[current_t[3]], 1)
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date_length = graphics.measure_text(str(current_t[2]), 1)
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graphics.set_font("bitmap6")
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graphics.set_pen(RED)
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graphics.rectangle(0, 0, WIDTH, 7)
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graphics.set_pen(WHITE)
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graphics.text(DAYS[current_t[3]], (WIDTH // 2) - (day_length // 2), 0, 16, 1)
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graphics.set_pen(RED)
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graphics.set_font("bitmap6")
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graphics.text(str(current_t[2]), (WIDTH // 2) - (date_length // 2) + 1, 8, 16, 1)
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graphics.set_pen(graphics.create_pen(0, 0, 0))
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su.update(graphics)
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init()
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while 1:
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# Adjust Brightness +/-
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if su.is_pressed(StellarUnicorn.SWITCH_BRIGHTNESS_UP):
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su.adjust_brightness(+0.01)
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if su.is_pressed(StellarUnicorn.SWITCH_BRIGHTNESS_DOWN):
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su.adjust_brightness(-0.01)
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# Connect to the network and sync with the NTP server
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if su.is_pressed(StellarUnicorn.SWITCH_C):
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sync_time()
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draw()
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