def __init__(self, address=0x70, segments=1, debug=False):
"Construct a display consisting of one or more 4-digit segments."
# Save the upper limit for convenience
self.maxDigit = 4 * segments
self.debug = debug
for segment in range(segments):
addr = address + segment
if (debug):
print "Initializing a new instance of LEDBackpack at 0x%02X" % addr
self.disp.append(LEDBackpack(address=addr, debug=debug))
def __init__(self, address=0x70, debug=False):
if (debug):
print "Initializing a new instance of LEDBackpack at 0x%02X" % address
self.disp = LEDBackpack(address=address, debug=debug)
#!/usr/bin/env python
import time, sys
from Adafruit_LEDBackpack import LEDBackpack
from LEDLetterValues import *
from timeit import default_timer
grids = [LEDBackpack(address=i) for i in range(0x70, 0x74)]
wait_time = float(
sys.argv[2] if len(sys.argv) > 2 else raw_input("Wait time: "))
text = sys.argv[1] if len(
sys.argv) > 1 else raw_input("What should I scroll: ")
printcon = textTo2D(text)
print "Press CTRL+C to exit"
def main():
scrolled = 0
while True:
start = default_timer()
for y, v in enumerate(printcon):
buffers = [0x00, 0x00, 0x00, 0x00]
for x, i in enumerate(v):
if i:
a = x - scrolled
if a >= 0 and a < len(grids) * 16:
buffers[a // 16] = buffers[a // 16] | 1 << (a % 16)
for i, grid in enumerate(grids):
grid.setBufferRow(y, buffers[i], update=False)
# function to return a datastream object. This either creates a new datastream,
# or returns an existing one
def get_datastream(feed):
try:
datastream = feed.datastreams.get("external_temp")
return datastream
except:
datastream = feed.datastreams.create("external_temp", tags="temp_01")
return datastream
# ===========================================================================
# Clock Example
# ===========================================================================
led = LEDBackpack(address=0x70)
segment = SevenSegment(address=0x70)
try:
interval = int(sys.argv[1])
except:
print 'Interval required'
sys.exit(1)
daybrightness = 15
nightbrightness = 5
minbrightness = 1
maxbrightness = 15
# Blink rate
__HT16K33_BLINKRATE_OFF = 0x00
__HT16K33_BLINKRATE_2HZ = 0x01
__HT16K33_BLINKRATE_1HZ = 0x02
__HT16K33_BLINKRATE_HALFHZ = 0x03
#Colors
__HT16K33_OFF = 0
__HT16K33_GREEN = 1
__HT16K33_RED = 2
__HT16K33_YELLOW = 3
# setup backpack
grid = ColorEightByEight(address=0x72)
backpack = LEDBackpack(address=0x72)
# command from RasPiConnect Execution Code
def completeCommand():
f = open("/home/pi/MouseAir/state/MouseCommand.txt", "w")
f.write("DONE")
f.close()
def processCommand():
f = open("/home/pi/MouseAir/state/MouseCommand.txt", "r")
command = f.read()
def __init__(self, address=0x70, debug=False):
self.disp = LEDBackpack(address=address, debug=debug)
#!/usr/bin/env python
import time
import datetime
from Adafruit_7Segment import SevenSegment
from Adafruit_LEDBackpack import LEDBackpack
import signal
import sys
segment = SevenSegment(address=0x70)
seven = LEDBackpack(address=0x70)
# Kinda pack-rat-ish.. these are crumbs I'd like to implement
seven.setBrightness(15)
def exit_gracefully(signum, frame):
# let's restore the original signal handlers
signal.signal(signal.SIGTERM, original_sigterm)
signal.signal(signal.SIGINT, original_sigint)
signal.signal(signal.SIGHUP, original_sighup)
# clean up gracefully here. bail when done.
seven.clear()
sys.exit(0)
#just in case we do something during cleanup that means we *shouldn't" exit, we want our handler to stay intact.
signal.signal(signal.SIGTERM, exit_gracefully)
signal.signal(signal.SIGINT, exit_gracefully)
signal.signal(signal.SIGHUP, exit_gracefully)
