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cibearcibear
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Added new functions
Signed-off-by: cibear <holo-deck@gmx.de>
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3 files changed

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‎collected_before.py

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#!/usr/bin/python
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from Adafruit_Thermal import *
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printer = Adafruit_Thermal("/dev/serial0", 19200, timeout=5)
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printer.setSize('L') # Set type size, accepts 'S', 'M', 'L'
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printer.println("Collected before!")
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printer.sleep() # Tell printer to sleep
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printer.wake() # Call wake() before printing again, even if reset
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printer.setDefault() # Restore printer to defaults

‎daily-main.py

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#!/usr/bin/python
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# Main script for Adafruit Internet of Things Printer 2. Monitors button
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# for taps and holds, performs periodic actions (Twitter polling by default)
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# and daily actions (Sudoku and weather by default).
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# Written by Adafruit Industries. MIT license.
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#
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# MUST BE RUN AS ROOT (due to GPIO access)
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#
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# Required software includes Adafruit_Thermal, Python Imaging and PySerial
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# libraries. Other libraries used are part of stock Python install.
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#
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# Resources:
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# http://www.adafruit.com/products/597 Mini Thermal Receipt Printer
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# http://www.adafruit.com/products/600 Printer starter pack
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from __future__ import print_function
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import RPi.GPIO as GPIO
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import subprocess, time, Image, socket
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from Adafruit_Thermal import *
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print("Starting up....")
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ledPin = 18
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buttonPin = 23
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holdTime = 2 # Duration for button hold (shutdown)
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tapTime = 0.01 # Debounce time for button taps
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nextInterval = 0.0 # Time of next recurring operation
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dailyFlag = False # Set after daily trigger occurs
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lastId = '1' # State information passed to/from interval script
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printer = Adafruit_Thermal("/dev/serial0", 19200, timeout=5)
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# Called when button is briefly tapped. Invokes time/temperature script.
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def tap():
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print("Button press detected.")
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GPIO.output(ledPin, GPIO.HIGH) # LED on while working
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subprocess.call(["python", "collected_before.py"])
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GPIO.output(ledPin, GPIO.LOW)
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# Called when button is held down. Prints image, invokes shutdown process.
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def hold():
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print("Button hold detected.")
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GPIO.output(ledPin, GPIO.HIGH)
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printer.printImage(Image.open('gfx/goodbye.png'), True)
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printer.feed(3)
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subprocess.call("sync")
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subprocess.call(["shutdown", "-h", "now"])
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GPIO.output(ledPin, GPIO.LOW)
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# Called at periodic intervals (30 seconds by default).
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# Invokes twitter script.
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def interval():
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print("Twitter polled.")
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GPIO.output(ledPin, GPIO.HIGH)
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p = subprocess.Popen(["python", "twitter.py", str(lastId)],
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stdout=subprocess.PIPE)
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GPIO.output(ledPin, GPIO.LOW)
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return p.communicate()[0] # Script pipes back lastId, returned to main
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# Called once per day (5:30am by default).
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def daily():
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print("First button press of the day...")
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GPIO.output(ledPin, GPIO.HIGH)
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subprocess.call(["python", "daily_message.py"])
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GPIO.output(ledPin, GPIO.LOW)
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# Initialization
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# Use Broadcom pin numbers (not Raspberry Pi pin numbers) for GPIO
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GPIO.setmode(GPIO.BCM)
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# Enable LED and button (w/pull-up on latter)
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GPIO.setup(ledPin, GPIO.OUT)
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GPIO.setup(buttonPin, GPIO.IN, pull_up_down=GPIO.PUD_UP)
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# LED on while working
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GPIO.output(ledPin, GPIO.HIGH)
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# Processor load is heavy at startup; wait a moment to avoid
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# stalling during greeting.
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#time.sleep(30)
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# Show IP address (if network is available)
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try:
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s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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s.connect(('8.8.8.8', 0))
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printer.print('My IP address is ' + s.getsockname()[0])
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printer.feed(3)
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except:
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printer.boldOn()
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printer.println('Network is unreachable.')
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printer.boldOff()
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printer.print('Connect display and keyboard\n'
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'for network troubleshooting.')
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printer.feed(3)
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exit(0)
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# Print greeting image
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printer.printImage(Image.open('gfx/hello.png'), True)
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printer.feed(3)
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GPIO.output(ledPin, GPIO.LOW)
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# Poll initial button state and time
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prevButtonState = GPIO.input(buttonPin)
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prevTime = time.time()
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tapEnable = False
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holdEnable = False
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print("Waiting for event....")
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# Main loop
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while(True):
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# Poll current button state and time
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buttonState = GPIO.input(buttonPin)
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t = time.time()
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# Has button state changed?
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if buttonState != prevButtonState:
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prevButtonState = buttonState # Yes, save new state/time
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prevTime = t
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else: # Button state unchanged
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if (t - prevTime) >= holdTime: # Button held more than 'holdTime'?
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# Yes it has. Is the hold action as-yet untriggered?
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if holdEnable == True: # Yep!
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hold() # Perform hold action (usu. shutdown)
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holdEnable = False # 1 shot...don't repeat hold action
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tapEnable = False # Don't do tap action on release
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elif (t - prevTime) >= tapTime: # Not holdTime. tapTime elapsed?
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# Yes. Debounced press or release...
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if buttonState == True: # Button released?
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if tapEnable == True: # Ignore if prior hold()
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tap() # Tap triggered (button released)
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tapEnable = False # Disable tap and hold
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holdEnable = False
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else: # Button pressed
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tapEnable = True # Enable tap and hold actions
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holdEnable = True
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# LED blinks while idle, for a brief interval every 2 seconds.
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# Pin 18 is PWM-capable and a "sleep throb" would be nice, but
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# the PWM-related library is a hassle for average users to install
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# right now. Might return to this later when it's more accessible.
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if ((int(t) & 1) == 0) and ((t - int(t)) < 0.15):
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GPIO.output(ledPin, GPIO.HIGH)
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else:
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GPIO.output(ledPin, GPIO.LOW)
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# Once per day (currently set for 6:30am local time, or when script
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# is first run, if after 5:30am), run forecast and sudoku scripts.
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l = time.localtime()
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if (60 * l.tm_hour + l.tm_min) > (60 * 5 + 30):
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if dailyFlag == False:
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daily()
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dailyFlag = True
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else:
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dailyFlag = False # Reset daily trigger
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# Every 30 seconds, run Twitter scripts. 'lastId' is passed around
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# to preserve state between invocations. Probably simpler to do an
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# import thing.
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if t > nextInterval:
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nextInterval = t + 30.0
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result = interval()
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if result is not None:
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lastId = result.rstrip('\r\n')
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‎daily_message.py

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#!/usr/bin/python
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from Adafruit_Thermal import *
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printer = Adafruit_Thermal("/dev/serial0", 19200, timeout=5)
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printer.setSize('L') # Set type size, accepts 'S', 'M', 'L'
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printer.println("Daily message")
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printer.sleep() # Tell printer to sleep
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printer.wake() # Call wake() before printing again, even if reset
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printer.setDefault() # Restore printer to defaults

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