kopia lustrzana https://github.com/pimoroni/pimoroni-pico
Badger2040W: New examples.
thirdr
Phil Howard
rodzic
6526787772
commit
379a1cb3ef
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import badger2040w as badger2040
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from badger2040w import WIDTH
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import time
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import network
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import machine
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TEXT_SIZE = 1
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LINE_HEIGHT = 16
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# Display Setup
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display = badger2040.Badger2040W()
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display.led(128)
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# Button handler
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def button(pin):
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time.sleep(0.01)
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if not pin.value():
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return
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if button_a.value() and button_c.value():
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machine.reset()
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# Setup buttons
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button_a = machine.Pin(badger2040.BUTTON_A, machine.Pin.IN, machine.Pin.PULL_DOWN)
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button_c = machine.Pin(badger2040.BUTTON_C, machine.Pin.IN, machine.Pin.PULL_DOWN)
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button_a.irq(trigger=machine.Pin.IRQ_RISING, handler=button)
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button_c.irq(trigger=machine.Pin.IRQ_RISING, handler=button)
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# Connects to the wireless network. Ensure you have entered your details in WIFI_CONFIG.py :).
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display.connect()
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net = network.WLAN(network.STA_IF).ifconfig()
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# Page Header
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display.set_pen(15)
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display.clear()
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display.set_pen(0)
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display.set_pen(0)
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display.rectangle(0, 0, WIDTH, 20)
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display.set_pen(15)
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display.text("badgerOS", 3, 4)
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display.text("Network Details", WIDTH - display.measure_text("Network Details") - 4, 4)
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display.set_pen(0)
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y = 35 + int(LINE_HEIGHT / 2)
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if net:
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display.text("> LOCAL IP: {}".format(net[0]), 0, y, WIDTH)
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y += LINE_HEIGHT
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display.text("> Subnet: {}".format(net[1]), 0, y, WIDTH)
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y += LINE_HEIGHT
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display.text("> Gateway: {}".format(net[2]), 0, y, WIDTH)
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y += LINE_HEIGHT
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display.text("> DNS: {}".format(net[3]), 0, y, WIDTH)
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else:
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display.text("> No network connection!", 0, y, WIDTH)
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y += LINE_HEIGHT
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display.text("> Check details in WIFI_CONFIG.py", 0, y, WIDTH)
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display.update()
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# Call halt in a loop, on battery this switches off power.
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# On USB, the app will exit when A+C is pressed because the launcher picks that up.
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while True:
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display.halt()
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@ -0,0 +1,230 @@
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import badger2040w as badger2040
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from badger2040w import WIDTH
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import time
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import machine
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from urllib import urequest
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import gc
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import qrcode
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import badger_os
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# URLS to use (Entertainment, Science and Technology)
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URL = ["http://feeds.bbci.co.uk/news/video_and_audio/entertainment_and_arts/rss.xml",
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"http://feeds.bbci.co.uk/news/video_and_audio/science_and_environment/rss.xml",
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"http://feeds.bbci.co.uk/news/technology/rss.xml"]
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code = qrcode.QRCode()
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state = {
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"current_page": 0,
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"feed": 2
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}
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badger_os.state_load("news", state)
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# Display Setup
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display = badger2040.Badger2040W()
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display.led(128)
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display.set_update_speed(2)
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# Button handler
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def button(pin):
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time.sleep(0.01)
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if not pin.value():
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return
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if button_a.value() and button_c.value():
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machine.reset()
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# Setup buttons
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button_a = machine.Pin(badger2040.BUTTON_A, machine.Pin.IN, machine.Pin.PULL_DOWN)
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button_b = machine.Pin(badger2040.BUTTON_B, machine.Pin.IN, machine.Pin.PULL_DOWN)
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button_c = machine.Pin(badger2040.BUTTON_C, machine.Pin.IN, machine.Pin.PULL_DOWN)
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button_down = machine.Pin(badger2040.BUTTON_DOWN, machine.Pin.IN, machine.Pin.PULL_DOWN)
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button_up = machine.Pin(badger2040.BUTTON_UP, machine.Pin.IN, machine.Pin.PULL_DOWN)
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button_a.irq(trigger=machine.Pin.IRQ_RISING, handler=button)
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button_c.irq(trigger=machine.Pin.IRQ_RISING, handler=button)
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def read_until(stream, char):
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result = b""
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while True:
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c = stream.read(1)
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if c == char:
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return result
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result += c
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def discard_until(stream, c):
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while stream.read(1) != c:
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pass
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def parse_xml_stream(s, accept_tags, group_by, max_items=3):
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tag = []
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text = b""
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count = 0
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current = {}
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while True:
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char = s.read(1)
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if len(char) == 0:
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break
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if char == b"<":
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next_char = s.read(1)
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# Discard stuff like <?xml vers...
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if next_char == b"?":
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discard_until(s, b">")
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continue
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# Detect <![CDATA
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elif next_char == b"!":
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s.read(1) # Discard [
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discard_until(s, b"[") # Discard CDATA[
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text = read_until(s, b"]")
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discard_until(s, b">") # Discard ]>
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gc.collect()
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elif next_char == b"/":
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current_tag = read_until(s, b">")
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top_tag = tag[-1]
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# Populate our result dict
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if top_tag in accept_tags:
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current[top_tag.decode("utf-8")] = text.decode("utf-8")
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# If we've found a group of items, yield the dict
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elif top_tag == group_by:
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yield current
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current = {}
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count += 1
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if count == max_items:
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return
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tag.pop()
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text = b""
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gc.collect()
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continue
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else:
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current_tag = read_until(s, b">")
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tag += [next_char + current_tag.split(b" ")[0]]
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text = b""
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gc.collect()
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else:
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text += char
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def measure_qr_code(size, code):
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w, h = code.get_size()
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module_size = int(size / w)
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return module_size * w, module_size
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def draw_qr_code(ox, oy, size, code):
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size, module_size = measure_qr_code(size, code)
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display.set_pen(15)
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display.rectangle(ox, oy, size, size)
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display.set_pen(0)
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for x in range(size):
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for y in range(size):
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if code.get_module(x, y):
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display.rectangle(ox + x * module_size, oy + y * module_size, module_size, module_size)
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# A function to get the data from an RSS Feed, this in case BBC News.
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def get_rss(url):
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try:
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stream = urequest.urlopen(url)
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output = list(parse_xml_stream(stream, [b"title", b"description", b"guid", b"pubDate"], b"item"))
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return output
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except OSError as e:
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print(e)
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return False
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# Connects to the wireless network. Ensure you have entered your details in WIFI_CONFIG.py :).
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display.connect()
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print(state["feed"])
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feed = get_rss(URL[state["feed"]])
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def draw_page():
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# Clear the display
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display.set_pen(15)
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display.clear()
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display.set_pen(0)
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# Draw the page header
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display.set_font("bitmap6")
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display.set_pen(0)
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display.rectangle(0, 0, WIDTH, 20)
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display.set_pen(15)
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display.text("News", 3, 4)
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display.text("Page: " + str(state["current_page"] + 1), WIDTH - display.measure_text("Page: ") - 4, 4)
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display.set_pen(0)
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display.set_font("bitmap8")
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# Draw articles from the feed if they're available.
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if feed:
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page = state["current_page"]
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display.set_pen(0)
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display.text(feed[page]["title"], 2, 40, WIDTH - 105, 2)
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code.set_text(feed[page]["guid"])
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draw_qr_code(WIDTH - 100, 25, 100, code)
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else:
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display.set_pen(0)
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display.rectangle(0, 60, WIDTH, 25)
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display.set_pen(15)
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display.text("Unable to display news! Check your network settings in WIFI_CONFIG.py", 5, 65, WIDTH, 1)
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display.update()
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draw_page()
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while 1:
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changed = False
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if button_down.value():
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if state["current_page"] < 2:
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state["current_page"] += 1
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changed = True
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if button_up.value():
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if state["current_page"] > 0:
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state["current_page"] -= 1
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changed = True
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if button_a.value():
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state["feed"] = 0
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state["current_page"] = 0
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feed = get_rss(URL[state["feed"]])
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badger_os.state_save("news", state)
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changed = True
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if button_b.value():
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state["feed"] = 1
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state["current_page"] = 0
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feed = get_rss(URL[state["feed"]])
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badger_os.state_save("news", state)
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changed = True
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if button_c.value():
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state["feed"] = 2
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state["current_page"] = 0
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feed = get_rss(URL[state["feed"]])
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badger_os.state_save("news", state)
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changed = True
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if changed:
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draw_page()
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