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firebasepython.py
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firebasepython.py
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#******************************************#
# PARKSMART #
# shivam.anand936@gmail.com #
#******************************************#
import RPi.GPIO as GPIO
import time
from pad4pi import rpi_gpio
from threading import Timer
import sys
from firebase import firebase
DEFAULT_KEY_DELAY = 300
DEFAULT_REPEAT_DELAY = 1.0
DEFAULT_REPEAT_RATE = 1.0
DEFAULT_DEBOUNCE_TIME = 200
GPIO.setmode(GPIO.BCM)
checkkey = 0
#******************************************#
KEYPAD = [
["1", "2", "3", "A"],
["4", "5", "6", "B"],
["7", "8", "9", "C"],
["*", "0", "#", "D"]
]
COL_PINS = [17, 15, 14, 25] # BCM numbering
ROW_PINS = [24,22,27,18] # BCM numbering
factory = rpi_gpio.KeypadFactory()
keypad = factory.create_keypad(keypad=KEYPAD, row_pins=ROW_PINS, col_pins=COL_PINS, key_delay=DEFAULT_KEY_DELAY, repeat=True, repeat_delay=DEFAULT_REPEAT_DELAY, repeat_rate=DEFAULT_REPEAT_RATE)
#******************************************#
f= open('data.txt', 'r')
vehicle = f.read()
firebase=firebase.FirebaseApplication('https://<yourdatabasename>.firebaseio.com/')
firebase.post('/user', data={'Vehicle Details': vehicle})
def printKey(key):
lcd_byte(ord(key),LCD_CHR)
print(key, end = "")
if (key == "#"):
lcd_byte(0x01, LCD_CMD)
lcd_string(" See you later!",LCD_LINE_1)
print ("\n\n See you later !\n\n\n")
GPIO.cleanup()
sys.exit()
#******************************************#
# printKey will be called each time a keypad button is pressed
keypad.registerKeyPressHandler(printKey)
# Define GPIO to LCD mapping
LCD_RS = 21
LCD_E = 20
LCD_D4 = 26
LCD_D5 = 19
LCD_D6 = 13
LCD_D7 = 6
# Define LCD parameters
LCD_WIDTH = 16 # Maximum characters per line
LCD_CHR = True
LCD_CMD = False
LCD_LINE_1 = 0x80 # LCD RAM address for the 1st line
LCD_LINE_2 = 0xC0 # LCD RAM address for the 2nd line
# Timing constants
E_PULSE = 0.0005
E_DELAY = 0.0005
#******************************************#
def main():
# Main program block
global pm
global system_sts
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM) # Use BCM GPIO numbers
GPIO.setup(LCD_E, GPIO.OUT) # E
GPIO.setup(LCD_RS, GPIO.OUT) # RS
GPIO.setup(LCD_D4, GPIO.OUT) # DB4
GPIO.setup(LCD_D5, GPIO.OUT) # DB5
GPIO.setup(LCD_D6, GPIO.OUT) # DB6
GPIO.setup(LCD_D7, GPIO.OUT) # DB7
# Initialise display
lcd_init()
lcd_byte(0x01, LCD_CMD)
lcd_string(" **PARKSMART**",LCD_LINE_1)
lcd_byte(0xC0, LCD_CMD)
print (" **P A R K S M A R T** \n")
localtime = time.asctime( time.localtime(time.time()))
print ("In time is: \n", localtime)
print ("\nVehicle number is: ")
while (checkkey == 0):
time.sleep(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 = data
# mode = True for character
# False for command
GPIO.output(LCD_RS, mode) # RS
# High bits
GPIO.output(LCD_D4, False)
GPIO.output(LCD_D5, False)
GPIO.output(LCD_D6, False)
GPIO.output(LCD_D7, False)
if bits&0x10==0x10:
GPIO.output(LCD_D4, True)
if bits&0x20==0x20:
GPIO.output(LCD_D5, True)
if bits&0x40==0x40:
GPIO.output(LCD_D6, True)
if bits&0x80==0x80:
GPIO.output(LCD_D7, True)
# Toggle 'Enable' pin
lcd_toggle_enable()
# Low bits
GPIO.output(LCD_D4, False)
GPIO.output(LCD_D5, False)
GPIO.output(LCD_D6, False)
GPIO.output(LCD_D7, False)
if bits&0x01==0x01:
GPIO.output(LCD_D4, True)
if bits&0x02==0x02:
GPIO.output(LCD_D5, True)
if bits&0x04==0x04:
GPIO.output(LCD_D6, True)
if bits&0x08==0x08:
GPIO.output(LCD_D7, True)
# Toggle 'Enable' pin
lcd_toggle_enable()
#******************************************#
def lcd_toggle_enable():
# Toggle enable
time.sleep(E_DELAY)
GPIO.output(LCD_E, True)
time.sleep(E_PULSE)
GPIO.output(LCD_E, False)
time.sleep(E_DELAY)
#***************************************#
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)
#******************************************#
if __name__ == '__main__':
main()