EInkNewsViewer

NewsViewer.py

import gc
import uos
import machine
import jpegdec
import sdcard
from urllib import urequest
import network
from picographics import PicoGraphics, DISPLAY_INKY_FRAME_7 as DISPLAY  # 7.3"
import time
from machine import Pin
import random
import mrequests
import ntptime
import inky_frame

"""
Daily news frontpage

You *must* insert an SD card into Inky Frame!
We need somewhere to save the jpg for display.

Fetches a jpg of a news frontpage from the newseum website

Docs for graphics lib here:
https://github.com/pimoroni/pimoroni-pico/blob/main/micropython/modules/picographics/README.md#jpeg-files

Get started guide here:
https://learn.pimoroni.com/article/getting-started-with-inky-frame

Run this code through Thonny with device connected through USB
"""

inky_frame.led_busy.on()

gc.collect()  # We're really gonna need that RAM!

#if needed, overwrite default time server
ntptime.host = "0.us.pool.ntp.org"

ENDPOINTS = [
                "https://cdn.freedomforum.org/dfp/jpg#DAY/lg/NY_NYT.jpg", #NYTimes
                "https://cdn.freedomforum.org/dfp/jpg#DAY/lg/WSJ.jpg", #WSJ
                "https://cdn.freedomforum.org/dfp/jpg#DAY/lg/NEWZ_TP.jpg", #the press, new zealand
                "https://cdn.freedomforum.org/dfp/jpg#DAY/lg/CA_SFC.jpg", #san francisco chronicle
                "https://cdn.freedomforum.org/dfp/jpg#DAY/lg/GER_RZ.jpg", #rhein zeitung
                "https://cdn.freedomforum.org/dfp/jpg#DAY/lg/GER_AA.jpg", #augsburger allgemeine
                "https://cdn.freedomforum.org/dfp/jpg#DAY/lg/GER_FAZ.jpg" #frankfurter allgemeine
                ]

REQ_HEADERS = {
                    "Accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
                    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
                    "Accept-Encoding": "",
                    "Cache-Control": "no-cache",
                    "Pragma": "no-cache"
               }

wlan = network.WLAN(network.STA_IF)
ssid = ''
password = ''

graphics = PicoGraphics(display=DISPLAY)

FILENAME = "/sd/frontpage.jpg"

wlan.active(True)
wlan.connect(ssid, password)

# Wait for connection to establish
max_wait = 10
while max_wait > 0:
    if wlan.status() < 0 or wlan.status() >= 3:
            break
    max_wait -= 1
    print('waiting for connection...')
    time.sleep(1)

# Manage connection errors
if wlan.status() != 3:
    print('Network Connection has failed')
else:
    print('connected')
    status = wlan.ifconfig()
    print( 'ip = ' + status[0] )


try:
  print("Local time before synchronization：%s" %str(time.localtime()))
  #make sure to have internet connection
  ntptime.settime()
  print("Local time after synchronization：%s" %str(time.localtime()))
except:
  print("Error syncing time")



print("Mounting SD Card...")
sd_spi = machine.SPI(0, sck=machine.Pin(18, machine.Pin.OUT), mosi=machine.Pin(19, machine.Pin.OUT), miso=machine.Pin(16, machine.Pin.OUT))
sd = sdcard.SDCard(sd_spi, machine.Pin(22))
uos.mount(sd, "/sd")
gc.collect()  # Claw back some RAM!

while True:
    url = random.choice(ENDPOINTS)
    year, month, day, hour, minute, second, dow, _ = time.localtime()
    if hour < 10:
        day = day-1 #adjust from europe to US plus add time so taht website has newest data - micropython doesn't seem to have great tiemzone support
    url = url.replace("#DAY", str(day))


    print("Downloading File: " + url)

    try:
        r = mrequests.get(url, headers=REQ_HEADERS)
        r.save(FILENAME,1024)
        gc.collect()  # We really are tight on RAM!

        print("Decoding and Rendering...")
        jpeg = jpegdec.JPEG(graphics)
        gc.collect()  # For good measure...

        graphics.set_pen(1)
        graphics.clear()

        jpeg.open_file(FILENAME)
        gc.collect()  # We really are tight on RAM!
        jpeg.decode(50, 0, jpegdec.JPEG_SCALE_FULL, dither=True)

        graphics.update()
    except Exception as e:
      print("Error downloading and showing file")
      print(e)

    # Time to have a little nap until the next update
    print("Going to sleep...")
    inky_frame.led_busy.off()
    inky_frame.sleep_for(60) #in minutes