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ethclock.py
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##################################
############ ETHCLOCK ############
############## BY CK #############
##################################
# --------------------------------
# --------Global Settings---------
# Etherscan API data:
etherscanAPI = "your etherscan.io API key"
# OpenWeather API data:
owmAPI = "your openweathermap.org API"
latitude = "99.9999"
longitude = "99.9999"
# Locale
tempscale = "metric" # use either "metric" for °C or "imperial" for °F
language = "english" # use either "english", "german", "spanish" or "french" for the display of weekdays in the corresponding language
# --------------------------------
# Libraries and global variables for...
# ...clock functionality
import time
from threading import Thread
current_time = "25:61"
current_date = "00.00.0000"
# ...API requests
import requests
import json
current_weekdaytemp = "Keintag, 99°C"
blockdisplay = "ETH Block 000000000"
# ...display functionality
import board
import digitalio
from PIL import Image, ImageDraw, ImageFont
import adafruit_ssd1306
oled = adafruit_ssd1306.SSD1306_I2C(dispwidth, dispheight, board.I2C(), addr=0x3d, reset=digitalio.DigitalInOut(board.D4))
dispwidth = 128
dispheight = 64
# Load fonts
font = ImageFont.truetype('data-latin_mod.ttf', 28)
font1 = ImageFont.truetype('data-latin_mod.ttf', 12)
font2 = ImageFont.truetype('data-latin_mod.ttf', 10)
# Establish locale for days of the week
if language = "german":
weekdays = ("Sonntag","Montag","Dienstag","Mittwoch","Donnerstag","Freitag","Samstag")
elif language = "spanish":
weekdays = ("Domingo","Lunes","Martes","Miércoles","Jueves","Viernes","Sábado")
elif language = "french":
weekdays = ("Dimanche","Lundi","Mardi","Mercredi","Jeudi","Vendredi","Samedi")
else:
weekdays = ("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday")
# Establish locale for temperature scale
if tempscale = "imperial":
tempunit = "°F"
else:
tempunit = "°C"
# Clear display and wait a second
oled.fill(0)
oled.show()
time.sleep(1)
# Function for creating a string that shows the current height of the ethereum blockchain
def blockheight():
# Load global variables
global blockdisplay
# Get current time in UNIX timestamp as integer
current_timeUNIX = int(time.time())
# Generate Etherscan API URL and request the block height of the current UNIX timestamp
etherscanRequest = requests.get("https://api.etherscan.io/api?module=block&action=getblocknobytime×tamp=" + str(current_timeUNIX) + "&closest=before&apikey=" + etherscanAPI).text
# Load JSON from API request, search for block height and create displayable string
response_info = json.loads(etherscanRequest)
blockheight = response_info['result']
blockdisplay = "ETH Block " + blockheight
# Create and start an individual loop to execute blockheight() every 25 seconds
def startblockloop():
while True:
blockheight()
time.sleep(25)
Thread(target=startblockloop).start()
# Function for creating a string that shows the current temperature in a defined area by usage of the OpenWeatherMap API
def tempdate():
# Load global variables
global current_date
global current_weekdaytemp
# Get weather data (temperature) by requesting OpenWeatherMap API for geographical data (Alter Lether Weg 6, Halen)
owmRequest = requests.get("https://api.openweathermap.org/data/2.5/weather?lat=" + latitude + "&lon=" + longitude + "&appid=" + owmAPI + "&units=" + tempscale)
if owmRequest.status_code == 200:
data = owmRequest.json()
main = data['main']
temp = int(main['temp'])
# Get/set current date and day of the week (by conversion)
current_weekdaynumber = int(time.strftime("%w"))
current_weekdaytemp = weekdays[current_weekdaynumber] + ", " + str(temp) + tempunit
current_date = time.strftime("%d.%m.%Y")
# Create and start an individual loop to execute tempdate() every minute
def starttemploop():
while True:
tempdate()
time.sleep(60)
Thread(target=starttemploop).start()
# Function for creating strings that show time
def timescript():
# Load global variables
global current_time
# Get/set current 24h time
current_time = time.strftime("%H:%M")
# Create and start an individual loop to execute timescript() every second
def starttimeloop():
while True:
timescript()
time.sleep(1)
Thread(target=starttimeloop).start()
# Give the environment some time
time.sleep(5)
# Function for passing previously gathered data to the display
def showdisplay():
# Create blank image for drawing
image = Image.new("1", (dispwidth, dispheight))
draw = ImageDraw.Draw(image)
# Calculate sizes of strings on display
widthtime, heighttime = draw.textsize(current_time, font = font)
widthday, heightday = draw.textsize(current_weekdaytemp, font = font1)
widthdate, heightdate = draw.textsize(current_date, font = font1)
widthblock, heightblock = draw.textsize(blockdisplay, font = font2)
# Draw time, date, weekday and block height
draw.text(((dispwidth-widthtime)/2,-8), current_time, font = font, fill = 255)
draw.text(((dispwidth-widthday)/2,25), current_weekdaytemp, font = font1, fill = 255)
draw.text(((dispwidth-widthdate)/2,37 ), current_date, font = font1, fill = 255)
draw.text(((dispwidth-widthblock)/2,54), blockdisplay, font = font2, fill = 255)
# Display image
oled.image(image)
oled.show()
while True:
showdisplay()
time.sleep(1)