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RPiScoreboard.py
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RPiScoreboard.py
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import RPi.GPIO as GPIO
import smbus
import time
from Adafruit_LED_Backpack import SevenSegment
# Create display instance on default I2C address (0x70) and bus number.
display = SevenSegment.SevenSegment()
# Initialize the display. Must be called once before using the display.
display.begin()
# Keep track of the colon being turned on or off.
colon = False
GPIO.setmode(GPIO.BCM)
GPIO.setup(18, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(24, GPIO.IN, pull_up_down=GPIO.PUD_UP)
from lxml import html
from requests.exceptions import HTTPError
import requests
########################################## LCD ##########################################
# Define some device parameters
I2C_ADDR = 0x3f # I2C device address
LCD_WIDTH = 16 # Maximum characters per line
# Define some device constants
LCD_CHR = 1 # Mode - Sending data
LCD_CMD = 0 # Mode - Sending command
LCD_LINE_1 = 0x80 # LCD RAM address for the 1st line
LCD_LINE_2 = 0xC0 # LCD RAM address for the 2nd line
LCD_LINE_3 = 0x94 # LCD RAM address for the 3rd line
LCD_LINE_4 = 0xD4 # LCD RAM address for the 4th line
LCD_BACKLIGHT = 0x08 # On
#LCD_BACKLIGHT = 0x00 # Off
ENABLE = 0b00000100 # Enable bit
# Timing constants
E_PULSE = 0.0005
E_DELAY = 0.0005
#Open I2C interface
#bus = smbus.SMBus(0) # Rev 1 Pi uses 0
bus = smbus.SMBus(1) # Rev 2 Pi uses 1
##################################################################################################
def lcd_init():
# Initialise display
lcd_byte(0x33,LCD_CMD) # 110011 Initialise
lcd_byte(0x32,LCD_CMD) # 110010 Initialise
lcd_byte(0x06,LCD_CMD) # 000110 Cursor move direction
lcd_byte(0x0C,LCD_CMD) # 001100 Display On,Cursor Off, Blink Off
lcd_byte(0x28,LCD_CMD) # 101000 Data length, number of lines, font size
lcd_byte(0x01,LCD_CMD) # 000001 Clear display
time.sleep(E_DELAY)
def lcd_byte(bits, mode):
# Send byte to data pins
# bits = the data
# mode = 1 for data
# 0 for command
bits_high = mode | (bits & 0xF0) | LCD_BACKLIGHT
bits_low = mode | ((bits<<4) & 0xF0) | LCD_BACKLIGHT
# High bits
bus.write_byte(I2C_ADDR, bits_high)
lcd_toggle_enable(bits_high)
# Low bits
bus.write_byte(I2C_ADDR, bits_low)
lcd_toggle_enable(bits_low)
def lcd_string(message,line):
# Send string to display
message = message.ljust(LCD_WIDTH," ")
lcd_byte(line, LCD_CMD)
for i in range(LCD_WIDTH):
lcd_byte(ord(message[i]),LCD_CHR)
def lcd_toggle_enable(bits):
# Toggle enable
time.sleep(E_DELAY)
bus.write_byte(I2C_ADDR, (bits | ENABLE))
time.sleep(E_PULSE)
bus.write_byte(I2C_ADDR,(bits & ~ENABLE))
time.sleep(E_DELAY)
FirstRunState = True
SearchGroup = 0 # Group number of the search team
SearchTeamA = 0 #
SearchTeamB = 0
TestNumber = 0 # incument value every time loop is run for debug
ChangeSearchTeam = 0
TotalTeams = 0
TeamName = ""
TeamScore = ""
TeamGroup = ""
def LoadData():
for i in range(0,5):
try:
GrabScores = requests.get('http://108.47.111.137/ArduinoSportsScores/GrabFootball.php')
page = requests.get('http://108.47.111.137/ArduinoSportsScores/FootballTable.php')
tree = html.fromstring(page.content)
TeamName = tree.xpath('//td[@id="TeamName"]/text()')
TeamScore = tree.xpath('//td[@id="TeamScore"]/text()')
TeamGroup = tree.xpath('//td[@id="TeamGroup"]/text()')
print 'Team: ', TeamName
print 'Score: ', TeamScore
print 'Group: ', TeamGroup
for x in range(0,TotalTeams):
if TeamGroup[x] == TeamGroup[SearchTeamA] and x is not SearchTeamA:
SearchTeamB = x
break
except requests.exceptions.Timeout:
print 'Error'
time.sleep(1)
except requests.exceptions.TooManyRedirects:
print 'Error'
time.sleep(1)
except requests.exceptions.RequestException as e:
print 'Error'
print e
time.sleep(1)
lcd_init() # initialize lcd
# LoadData() #Load all web data once for team selecting
while True:
input_state = GPIO.input(18)
RunStatus = GPIO.input(24)
if RunStatus == False or FirstRunState == True:
LCD_BACKLIGHT = 0x00 # Off
try:
GrabScores = requests.get('http://108.47.111.137/ArduinoSportsScores/GrabFootball.php')
page = requests.get('http://108.47.111.137/ArduinoSportsScores/FootballTable.php')
tree = html.fromstring(page.content)
TeamName = tree.xpath('//td[@id="TeamName"]/text()')
TeamScore = tree.xpath('//td[@id="TeamScore"]/text()')
TeamGroup = tree.xpath('//td[@id="TeamGroup"]/text()')
print 'Team: ', TeamName
print 'Score: ', TeamScore
print 'Group: ', TeamGroup
if not TeamName:
str1 = "No current games found"
str2 = ""
lcd_string(str1,LCD_LINE_1)
lcd_string(str2,LCD_LINE_2)
display.clear()
display.print_float(int(0), decimal_digits=0, justify_right=False)
display.print_float(int(0), decimal_digits=0, justify_right=True)
display.set_colon(colon)
else:
for x in range(0,TotalTeams):
if TeamGroup[x] == TeamGroup[SearchTeamA] and x is not SearchTeamA:
SearchTeamB = x
break
str1 = "H: " + TeamName[SearchTeamA]
str2 = "A: " + TeamName[SearchTeamB]
lcd_string(str1,LCD_LINE_1)
lcd_string(str2,LCD_LINE_2)
display.clear()
display.print_float(int(TeamScore[SearchTeamA]), decimal_digits=0, justify_right=False)
display.print_float(int(TeamScore[SearchTeamB]), decimal_digits=0, justify_right=True)
display.set_colon(colon)
display.write_display()
TestNumber = TestNumber + 1
print 'Test: ', TestNumber
except requests.exceptions.Timeout:
print 'Error'
time.sleep(1)
except requests.exceptions.TooManyRedirects:
print 'Error'
time.sleep(1)
except requests.exceptions.RequestException as e:
print 'Error'
print e
time.sleep(1)
FirstRunState = False
time.sleep(2)
else:
LCD_BACKLIGHT = 0x08 # On
TotalTeams = len(TeamName)
if input_state == False:
ChangeSearchTeam = ChangeSearchTeam + 1
SearchTeamA = ChangeSearchTeam
print 'Button Pressed'
print 'Team Index'
print ChangeSearchTeam
if ChangeSearchTeam == TotalTeams:
ChangeSearchTeam = 0
SearchTeamA = ChangeSearchTeam
time.sleep(0.1)
if not TeamName:
str1 = "No current games found"
str2 = ""
lcd_string(str1,LCD_LINE_1)
lcd_string(str2,LCD_LINE_2)
display.clear()
display.print_float(int(0), decimal_digits=0, justify_right=False)
display.print_float(int(0), decimal_digits=0, justify_right=True)
display.set_colon(colon)
else:
for x in range(0,TotalTeams):
if TeamGroup[x] == TeamGroup[SearchTeamA] and x is not SearchTeamA:
SearchTeamB = x
break
str1 = "H: " + TeamName[SearchTeamA]
str2 = "A: " + TeamName[SearchTeamB]
lcd_string(str1,LCD_LINE_1)
lcd_string(str2,LCD_LINE_2)
display.write_display()