I just wanted to share with you my first project on my Raspberry Pi. It's basically a Panic/Help Button for my mom, so that I or my dad get notified if she needs anything.
It consists of the following parts:
- Raspberry Pi 2
- Adafruit Simple RF M4 Receiver - 315MHz Momentary Type
- Adafruit Keyfob 4-Button RF Remote Control - 315MHz
And here's the code:
Code: Select all
#Time functions
from datetime import datetime
# GPIO functions and modeset
import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BOARD)
# Push Notification setup
from pushetta import Pushetta
API_KEY="pushettaapikeythatisreallylong"
CHANNEL="PUSHETTAALERT"
# Define which 'physical' GPIO pins are to be used for the buttons
buttonA=11
buttonB=12
buttonC=15
buttonD=16
# Set up the GPIO pins to be pull-down so that they are triggered when
# current from the corresponding RF receiver goes through
GPIO.setup(buttonA,GPIO.IN,pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(buttonB,GPIO.IN,pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(buttonC,GPIO.IN,pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(buttonD,GPIO.IN,pull_up_down=GPIO.PUD_DOWN)
def pushMsg(channel):
presstime = datetime.now().strftime('%A, %d %B %Y at %H:%M:%S %Z')
button = getButton(channel)
msg = 'Button %s pressed on %s'%(button,presstime)
p=Pushetta(API_KEY)
p.pushMessage(CHANNEL_NAME, msg)
print pressmsg
print msg
def getButton(channel):
return{
11: 'A',
12: 'B',
15: 'C',
16: 'D',
}[channel]
# Add event detection to GPIO pins
GPIO.add_event_detect(buttonA, GPIO.RISING, pushMsg, bouncetime=50)
GPIO.add_event_detect(buttonB, GPIO.RISING, pushMsg, bouncetime=50)
GPIO.add_event_detect(buttonC, GPIO.RISING, pushMsg, bouncetime=50)
GPIO.add_event_detect(buttonD, GPIO.RISING, pushMsg, bouncetime=50)
print "Waiting for button press"
try:
raw_input('Press <Enter> key to exit\n')
except KeyboardInterrupt:
GPIO.cleanup()
GPIO.cleanup()