树莓派

  1### e-Paper/RaspberryPi_JetsonNano/python/app.py
  2
  3#!/usr/bin/python
  4# -*- coding:utf-8 -*-
  5
  6import sys
  7import os
  8picdir = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'pic')
  9libdir = os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))), 'lib')
 10if os.path.exists(libdir):
 11    sys.path.append(libdir)
 12
 13import logging
 14from waveshare_epd import epd2in7
 15import time
 16from PIL import Image,ImageDraw,ImageFont
 17import traceback
 18
 19# custom
 20from datetime import datetime
 21import requests
 22import RPi.GPIO
 23
 24button1 = 5
 25button2 = 6
 26button3 = 13
 27button4 = 19
 28
 29RPi.GPIO.setmode(RPi.GPIO.BCM)
 30RPi.GPIO.setup(button1, RPi.GPIO.IN, pull_up_down=RPi.GPIO.PUD_UP)
 31RPi.GPIO.setup(button2, RPi.GPIO.IN, pull_up_down=RPi.GPIO.PUD_UP)
 32RPi.GPIO.setup(button3, RPi.GPIO.IN, pull_up_down=RPi.GPIO.PUD_UP)
 33RPi.GPIO.setup(button4, RPi.GPIO.IN, pull_up_down=RPi.GPIO.PUD_UP)
 34
 35epd = epd2in7.EPD()
 36    
 37epd.init()
 38epd.Clear(0xFF)
 39    
 40font24 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 24)
 41font16 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 16)
 42font36 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 36)
 43font84 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 84)
 44
 45# Location
 46Lct = ['hangzhou','beijing','tianjin','shanghai']
 47lct = Lct[0]
 48c = 0
 49
 50def refreshWeather():
 51    Himage = Image.new('1', (epd.height, epd.width), 255)  # 255: clear the frame
 52    draw = ImageDraw.Draw(Himage)
 53    
 54    key = "YOUR_KEY"
 55    url = "https://api.seniverse.com/v3/weather/now.json?key=" + key + "&location=" + lct + "&language=zh-Hans&unit=c"
 56    
 57    weaData = requests.get(url)
 58    cityName = weaData.json()['results'][0]['location']['name'] # city
 59    cityWea = weaData.json()['results'][0]['now']['text'] # weather
 60    cityTemp = weaData.json()['results'][0]['now']['temperature'] + '°C' # temp
 61    
 62    draw.text((10, 10), cityName, font = font36, fill = 0)
 63    draw.text((90, 10), cityWea, font = font36, fill = 0)
 64    draw.text((10, 50), cityTemp, font = font84, fill = 0)
 65    
 66    # show the refresh date
 67    dayTime = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
 68    draw.text((10, 150), u'更新时间：', font = font16, fill = 0)
 69    draw.text((100, 150), dayTime, font = font16, fill = 0)
 70    
 71    epd.display(epd.getbuffer(Himage))
 72
 73try:
 74    refreshWeather()
 75    while True:
 76        if RPi.GPIO.input(button1) == 0:
 77            time.sleep(0.1)
 78            if RPi.GPIO.input(button1) == 0:
 79                c = c - 1
 80                if c < 0:
 81                    c = 3
 82                lct = Lct[c]
 83                refreshWeather()
 84        if RPi.GPIO.input(button2) == 0:
 85            time.sleep(0.1)
 86            if RPi.GPIO.input(button2) == 0:
 87                c = c + 1
 88                if c >= 4:
 89                    c = 0
 90                lct = Lct[c]
 91                refreshWeather()
 92        if RPi.GPIO.input(button3) == 0:
 93            epd.Clear(0xFF)
 94        if RPi.GPIO.input(button4) == 0:
 95            time.sleep(0.1)
 96            if RPi.GPIO.input(button4) == 0:
 97                epd2in7.epdconfig.module_exit()
 98                exit()
 99    
100except IOError as e:
101    logging.info(e)
102    
103except KeyboardInterrupt:    
104    logging.info("ctrl + c:")
105    epd2in7.epdconfig.module_exit()
106    exit()