class Display:
disp = None
# Constructor
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)
def writeChar(self, charNumber, value):
global DIGIT_VALUES
self.setBufferRow(charNumber, DIGIT_VALUES[value])
def setBufferRow(self, charNumber, value):
self.disp.setBufferRow(charNumber, value)
class SevenSegment:
disp = None
# Hexadecimal character lookup table (row 1 = 0..9, row 2 = A..F)
digits = [ 0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F, \
0x77, 0x7C, 0x39, 0x5E, 0x79, 0x71 ]
# Constructor
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)
def clear(self):
self.disp.clear()
def setBrightness(self, bright):
self.setBrightness(bright)
def writeDigitRaw(self, charNumber, value):
"Sets a digit using the raw 16-bit value"
if (charNumber > 7):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, value)
def writeDigit(self, charNumber, value, dot=False):
"Sets a single decimal or hexademical value (0..9 and A..F)"
if (charNumber > 7):
return
if (value > 0xF):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, self.digits[value] | (dot << 7))
def setColon(self, state=True):
"Enables or disables the colon character"
# Warning: This function assumes that the colon is character '2',
# which is the case on 4 char displays, but may need to be modified
# if another display type is used
if (state):
self.disp.setBufferRow(2, 0xFFFF)
else:
self.disp.setBufferRow(2, 0)
class SevenSegment:
disp = None
invert = False
# Hexadecimal character lookup table (row 1 = 0..9, row 2 = A..F)
digits = [ 0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F, \
0x77, 0x7C, 0x39, 0x5E, 0x79, 0x71 ]
# The same, but upside-down
idigits = [ 0x3F, 0x30, 0x5B, 0x79, 0x74, 0x6D, 0x6F, 0x38, 0x7F, 0x7D, \
0x7E, 0x67, 0x0F, 0x73, 0x4F, 0x4E ]
# Constructor
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)
def writeDigitRaw(self, charNumber, value):
"Sets a digit using the raw 16-bit value"
if (charNumber > 7):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, value)
def writeDigit(self, charNumber, value, dot=False):
"Sets a single decimal or hexademical value (0..9 and A..F)"
if (charNumber > 7):
return
if (value > 0xF):
return
# Decide which digit set to use: check self.invert
d = self.idigits[value] if self.invert else self.digits[value]
# If inverted, also reverse the character positions
c = (4-charNumber) if self.invert else charNumber
# Set the appropriate digit
self.disp.setBufferRow(c, d | (dot << 7))
def setColon(self, state=True):
"Enables or disables the colon character"
# Warning: This function assumes that the colon is character '2',
# which is the case on 4 char displays, but may need to be modified
# if another display type is used
# This sets all non-digit LEDs. Change (2,0xFFFF) to (2,2) to just
# set colon on the 1.2" 7-Segment display.
if (state):
self.disp.setBufferRow(2, 0xFFFF)
else:
self.disp.setBufferRow(2, 0)
class EightByEight:
disp = None
# Constructor
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)
def writeRowRaw(self, charNumber, value):
"Sets a row of pixels using a raw 16-bit value"
if (charNumber > 7):
return
# Set the appropriate row
self.disp.setBufferRow(charNumber, value)
def getBuffer(self):
return self.disp.getBuffer()
def clearPixel(self, x, y):
"A wrapper function to clear pixels (purely cosmetic)"
self.setPixel(x, y, 0)
def setPixel(self, x, y, color=1):
"Sets a single pixel"
if (x >= 8):
return
if (y >= 8):
return
x += 7 # ATTN: This might be a bug? On the color matrix, this causes x=0 to draw on the last line instead of the first.
x %= 8
# Set the appropriate pixel
buffer = self.disp.getBuffer()
if (color):
self.disp.setBufferRow(y, buffer[y] | 1 << x)
else:
self.disp.setBufferRow(y, buffer[y] & ~(1 << x))
def clear(self):
"Clears the entire display"
self.disp.clear()
class EightByEight:
disp = None
# Constructor
def __init__(self, address=0x70, bus=Adafruit_I2C.getPiI2CBusNumber(), debug=False):
if (debug):
print "Initializing a new instance of LEDBackpack at 0x%02X" % address
self.disp = LEDBackpack(address=address, bus=bus, debug=debug)
def writeRowRaw(self, charNumber, value):
"Sets a row of pixels using a raw 16-bit value"
if (charNumber > 7):
return
# Set the appropriate row
self.disp.setBufferRow(charNumber, value)
def clearPixel(self, x, y):
"A wrapper function to clear pixels (purely cosmetic)"
self.setPixel(x, y, 0)
def setPixel(self, x, y, color=1):
"Sets a single pixel"
if (x >= 8):
return
if (y >= 8):
return
x += 7
x %= 8
# Set the appropriate pixel
buffer = self.disp.getBuffer()
if (color):
self.disp.setBufferRow(y, buffer[y] | 1 << x)
else:
self.disp.setBufferRow(y, buffer[y] & ~(1 << x))
def clear(self):
"Clears the entire display"
self.disp.clear()
class Bargraph:
disp = None
LED_OFF = 0
LED_RED = 1
LED_GREEN = 2
LED_YELLOW = 3
# Constructor
def __init__(self, address=0x70, debug=False):
self.debug = debug
if self.debug:
print "Initializing a new instance of LEDBackpack at 0x%02X" % address
self.disp = LEDBackpack(address=address, debug=debug)
def setLed(self, bar, color):
if bar > 24:
return
if color > 3:
return
if bar < 12:
c = bar / 4
else:
c = (bar - 12) / 4
a = bar % 4;
if bar >= 12:
a += 4;
if self.debug:
print "Ano = %d Cath %d" % (a, c)
bufRow = self.disp.getBufferRow(c) & ~((1 << a) | (1 << (a+8))) # turn off the LED
if color == self.LED_RED:
self.disp.setBufferRow(c, bufRow | (1 << a))
elif color == self.LED_YELLOW:
self.disp.setBufferRow(c, bufRow | (1 << a) | (1 << (a+8)))
elif color == self.LED_GREEN:
self.disp.setBufferRow(c, bufRow | 1 << (a+8))
def __init__(self, address=0x70, bus=Adafruit_I2C.getPiI2CBusNumber(), debug=False):
if (debug):
print "Initializing a new instance of LEDBackpack at 0x%02X" % address
self.disp = LEDBackpack(address=address, bus=bus, debug=debug)
class SevenSegment:
disp = None
# Some 7Segment-Display have several different colons, e.g. the
# 1,2" display. To seperately control such different colons
# use the following values where applicable:
#
# 0x00 - nothing
# 0x02 - center colon
# 0x04 - left colon - upper dot
# 0x08 - left colon - lower dot
# 0x10 - decimal point
# 0xFFFF - everything (default)
mask_colons = 0xFFFF
# Hexadecimal character lookup table (row 1 = 0..9, row 2 = A..F)
DIGITS_NORMAL = [ 0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F, \
0x77, 0x7C, 0x39, 0x5E, 0x79, 0x71 ]
# inverted table from https://github.com/tomgidden/Adafruit-Raspberry-Pi-Python-Code/commit/87bed18ecc8e251f3c10433d8a31d363dbbd355c
# thx to tomgidden@github for this
DIGITS_INVERTED = [ 0x3F, 0x30, 0x5B, 0x79, 0x74, 0x6D, 0x6F, 0x38, 0x7F, 0x7D, \
0x7E, 0x67, 0x0F, 0x73, 0x4F, 0x4E ]
digits = DIGITS_NORMAL
display_inverted = False
# Constructor
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)
def invertDisplay(self):
if (self.display_inverted): # we were inverted, so switch back to normal
self.digits = self.DIGITS_NORMAL
self.display_inverted = False
else: # we were displaying normally, so switch to inverted
self.digits = self.DIGITS_INVERTED
self.display_inverted = True
def writeDigitRaw(self, charNumber, value):
"Sets a digit using the raw 16-bit value"
if (charNumber > 7):
return
if ((self.display_inverted) & (charNumber < 5)):
"if inverted we need to use reverse character positioning"
charNumber = 4 - charNumber
# Set the appropriate digit
self.disp.setBufferRow(charNumber, value)
def writeDigit(self, charNumber, value, dot=False):
"Sets a single decimal or hexademical value (0..9 and A..F)"
if (charNumber > 7):
return
if (value > 0xF):
return
if ((self.display_inverted) & (charNumber < 5)):
"if inverted we need to use reverse character positioning"
charNumber = 4 - charNumber
# Set the appropriate digit
self.disp.setBufferRow(charNumber, self.digits[value] | (dot << 7))
def setColon(self, state=True):
"Enables or disables the colon character"
# Warning: This function assumes that the colon is character '2',
# which is the case on 4 char displays, but may need to be modified
# if another display type is used
if (state):
self.disp.setBufferRow(2, self.mask_colons)
else:
self.disp.setBufferRow(2, 0)
__author__ = 'Justin'
# ===========================================================================
# Main clock program
# ===========================================================================
import time
import datetime
from Adafruit_7Segment import SevenSegment
from Adafruit_LEDBackpack import LEDBackpack
from clock_API import ClockAPI
print "Press CTRL+Z to exit"
segment = SevenSegment(address=0x70)
backpack = LEDBackpack()
data = ClockAPI()
backpack.setBrightness(0)
API_data = data.getWeatherCondition('seattle', 'F')
temp = API_data[2]
print datetime.datetime.now()
print API_data
print temp
# Continually update the time on a 4 char, 7-segment display
# while True:
def __init__(self, address=0x70, debug=False):
self.disp = LEDBackpack(address=address, debug=debug)
class EightByEight:
disp = None
rotation = 0
# Constructor
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)
def getRotation(self):
return self.rotation
def setRotation(self, rot):
if rot >= 0 and rot <= 3:
self.rotation = rot
def writeRowRaw(self, charNumber, value):
"Sets a row of pixels using a raw 16-bit value"
if (charNumber > 7):
return
# Set the appropriate row
self.disp.setBufferRow(charNumber, value)
def clearPixel(self, x, y):
"A wrapper function to clear pixels (purely cosmetic)"
self.setPixel(x, y, 0)
def setPixel(self, x, y, color=1):
"Sets a single pixel"
# Check for invalid coordinates
if (x < 0) or (x >= 8) or (y < 0) or (y >= 8):
return
# Check rotation, move pixel around if necessary
if self.rotation == 1:
x, y = y, x
x = 8 - x - 1;
elif self.rotation == 2:
x = 8 - x - 1
y = 8 - y - 1
elif self.rotation == 3:
x, y = y, x
y = 8 - y - 1
# x += 7 # ATTN: This might be a bug? On the color matrix, this causes x=0 to draw on the last line instead of the first.
x %= 8
# This modification fixes the pixel addressing error
if (x == 0):
x = 7
elif (x > 0):
x = x - 1
# End of modification for the pixel addressing error
# Set the appropriate pixel
buffer = self.disp.getBuffer()
if (color):
self.disp.setBufferRow(y, buffer[y] | 1 << x)
else:
self.disp.setBufferRow(y, buffer[y] & ~(1 << x))
def clear(self):
"Clears the entire display"
self.disp.clear()
# 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
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)
class Alphanumeric(object):
disp = None
# Hexadecimal character lookup table
lut = [
0b0000000000000001,
0b0000000000000010,
0b0000000000000100,
0b0000000000001000,
0b0000000000010000,
0b0000000000100000,
0b0000000001000000,
0b0000000010000000,
0b0000000100000000,
0b0000001000000000,
0b0000010000000000,
0b0000100000000000,
0b0001000000000000,
0b0010000000000000,
0b0100000000000000,
0b1000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0001001011001001,
0b0001010111000000,
0b0001001011111001,
0b0000000011100011,
0b0000010100110000,
0b0001001011001000,
0b0011101000000000,
0b0001011100000000,
0b0000000000000000, #
0b0000000000000110, # !
0b0000001000100000, # "
0b0001001011001110, # #
0b0001001011101101, # $
0b0000110000100100, # %
0b0010001101011101, # &
0b0000010000000000, # '
0b0010010000000000, # (
0b0000100100000000, # )
0b0011111111000000, # *
0b0001001011000000, # +
0b0000100000000000, # ,
0b0000000011000000, # -
0b0000000000000000, # .
0b0000110000000000, # /
0b0000110000111111, # 0
0b0000000000000110, # 1
0b0000000011011011, # 2
0b0000000010001111, # 3
0b0000000011100110, # 4
0b0010000001101001, # 5
0b0000000011111101, # 6
0b0000000000000111, # 7
0b0000000011111111, # 8
0b0000000011101111, # 9
0b0001001000000000, # :
0b0000101000000000, # ;
0b0010010000000000, # <
0b0000000011001000, # =
0b0000100100000000, # >
0b0001000010000011, # ?
0b0000001010111011, # @
0b0000000011110111, # A
0b0001001010001111, # B
0b0000000000111001, # C
0b0001001000001111, # D
0b0000000011111001, # E
0b0000000001110001, # F
0b0000000010111101, # G
0b0000000011110110, # H
0b0001001000000000, # I
0b0000000000011110, # J
0b0010010001110000, # K
0b0000000000111000, # L
0b0000010100110110, # M
0b0010000100110110, # N
0b0000000000111111, # O
0b0000000011110011, # P
0b0010000000111111, # Q
0b0010000011110011, # R
0b0000000011101101, # S
0b0001001000000001, # T
0b0000000000111110, # U
0b0000110000110000, # V
0b0010100000110110, # W
0b0010110100000000, # X
0b0001010100000000, # Y
0b0000110000001001, # Z
0b0000000000111001, # [
0b0010000100000000, #
0b0000000000001111, # ]
0b0000110000000011, # ^
0b0000000000001000, # _
0b0000000100000000, # `
0b0001000001011000, # a
0b0010000001111000, # b
0b0000000011011000, # c
0b0000100010001110, # d
0b0000100001011000, # e
0b0000000001110001, # f
0b0000010010001110, # g
0b0001000001110000, # h
0b0001000000000000, # i
0b0000000000001110, # j
0b0011011000000000, # k
0b0000000000110000, # l
0b0001000011010100, # m
0b0001000001010000, # n
0b0000000011011100, # o
0b0000000101110000, # p
0b0000010010000110, # q
0b0000000001010000, # r
0b0010000010001000, # s
0b0000000001111000, # t
0b0000000000011100, # u
0b0010000000000100, # v
0b0010100000010100, # w
0b0010100011000000, # x
0b0010000000001100, # y
0b0000100001001000, # z
0b0000100101001001, # {
0b0001001000000000, # |
0b0010010010001001, # }
0b0000010100100000, # ~
0b0011111111111111
]
special = dict(degree=0b0000000011100011, cone=0b0010100000001000)
def __init__(self, address=0x70, debug=False):
self.disp = LEDBackpack(address=address, debug=debug)
def writeCharRaw(self, charNumber, value):
"Sets a digit using the raw 16-bit value"
if (charNumber > 4):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, value)
def writeChar(self, charNumber, value, dot=False):
"Sets a single decimal or hexademical value (0..9 and A..F)"
if (charNumber > 4):
return
if value in self.special:
value = self.special[value]
else:
value = self.lut[ord(value)]
# Set the appropriate digit
self.disp.setBufferRow(charNumber, value | (dot << 14))
def __init__(self, address=0x70, debug=False):
self.disp = LEDBackpack(address=address, debug=debug)
class SevenSegment:
disp = None
# Hexadecimal character lookup table (row 1 = 0..9, row 2 = A..F)
digits = [ 0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F, \
0x77, 0x7C, 0x39, 0x5E, 0x79, 0x71 ]
# Constructor
def __init__(self, address=0x72, debug=False):
if (debug):
print "Initializing a new instance of LEDBackpack at 0x%02X" % address
self.disp = LEDBackpack(address=address, debug=debug)
# self.disp.setBrightness(1)
def writeDigitRaw(self, charNumber, value):
"Sets a digit using the raw 16-bit value"
if (charNumber > 7):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, value)
def writeDigit(self, charNumber, value, dot=False):
"Sets a single decimal or hexademical value (0..9 and A..F)"
if (charNumber > 7):
return
if (value > 0xF):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, self.digits[value] | (dot << 7))
def setColon(self, state=True):
"Enables or disables the colon character"
# Warning: This function assumes that the colon is character '2',
# which is the case on 4 char displays, but may need to be modified
# if another display type is used
if (state):
self.disp.setBufferRow(2, 0xFFFF)
else:
self.disp.setBufferRow(2, 0)
def setBrightness(self, brightness=15):
# print "setBrightness called", brightness
"Sets the display brightness"
if (self.is_number(brightness) and brightness >= 0 and brightness <= 15):
# print "Setting brightness to", brightness
self.disp.setBrightness(brightness)
def clear(self, update=True):
self.disp.clear(update)
def is_number(self, s):
try:
float(s)
return True
except ValueError:
return False
#!/usr/bin/python import time import datetime from Adafruit_7Segment import SevenSegment from Adafruit_LEDBackpack import LEDBackpack backpack = LEDBackpack(address=0x74) backpack.setBrightness(15) # =========================================================================== # Clock Example # =========================================================================== segment = SevenSegment(address=0x74) # Continually update the time on a 4 char, 7-segment display while(True): now = datetime.datetime.now() hour = now.hour minute = now.minute second = now.second # Set hours segment.writeDigit(0, int(hour / 10)) # Tens segment.writeDigit(1, hour % 10) # Ones # Set minutes segment.writeDigit(3, int(minute / 10)) # Tens segment.writeDigit(4, minute % 10) # Ones # Toggle colon segment.setColon(second % 2) # Toggle colon at 1Hz # Wait one second
#!/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)
class SevenSegment:
disp = None
# Hexadecimal character lookup table (row 1 = 0..9, row 2 = A..F)
digits = [ 0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F, \
0x77, 0x7C, 0x39, 0x5E, 0x79, 0x71 ]
# Constructor
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)
def writeDigitRaw(self, charNumber, value):
"Sets a digit using the raw 16-bit value"
if (charNumber > 7):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, value)
def writeDigit(self, charNumber, value, dot=False):
"Sets a single decimal or hexademical value (0..9 and A..F)"
if (charNumber > 7):
return
if (value > 0xF):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, self.digits[value] | (dot << 7))
def setColon(self, state=True):
"Enables or disables the colon character"
# Warning: This function assumes that the colon is character '2',
# which is the case on 4 char displays, but may need to be modified
# if another display type is used
if (state):
self.disp.setBufferRow(2, 0xFFFF)
else:
self.disp.setBufferRow(2, 0)
# Enabling/disabling small dots
def writeDot(self, charNumber, dot):
if charNumber > 4:
return
current = self.disp.getBufferRow(charNumber)
#if dot:
self.disp.setBufferRow(charNumber, current | (dot << 7))
def __init__(self, address = 0x70, debug=False):
""" Constructor. """
if (debug):
print "Initializing a new instance of LEDBackpack at 0x%02X" % address
self.disp = LEDBackpack(address=address, debug=debug)
# 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()
class SevenSegment:
disp = None
# Hexadecimal character lookup table (row 1 = 0..9, row 2 = A..F)
digits = [0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F,
0x77, 0x7C, 0x39, 0x5E, 0x79, 0x71]
# Constructor
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)
def writeDigitRaw(self, charNumber, value):
"Sets a digit using the raw 16-bit value"
if (charNumber > 7):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, value)
def writeDigit(self, charNumber, value, dot=False):
"Sets a single decimal or hexademical value (0..9 and A..F)"
if (charNumber > 7):
return
if (value > 0xF):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, self.digits[value] | (dot << 7))
def setColon(self, state=True):
"Enables or disables the colon character"
# Warning: This function assumes that the colon is character '2',
# which is the case on 4 char displays, but may need to be modified
# if another display type is used
if (state):
self.disp.setBufferRow(2, 0xFFFF)
else:
self.disp.setBufferRow(2, 0)
def writeInt(self, value):
"""
Write The 'Value' to the display
"""
if value > 9999:
#Maxed OUT!
value = 9999
else:
value = int(value)
self.writeDigit(0, (value / 1000) % 10)
self.writeDigit(1, (value / 100) % 10)
self.writeDigit(3, (value / 10) % 10)
self.writeDigit(4, value % 10)
def writeNum(self, value):
if value > 999:
self.writeInt(value)
elif value > 99:
self.writeDigit(0, int(value / 100))
self.writeDigit(1, (value / 10) % 10)
self.writeDigit(3, value % 10, True) #Add Decimal
self.writeDigit(4, (value * 10) % 10)
elif value > 9:
self.writeDigit(0, int(value / 10))
self.writeDigit(1, value % 10, True)
self.writeDigit(3, (value * 10) % 10)
self.writeDigit(4, (value * 100 % 10))
else:
self.writeDigit(0, int(value * 10), True)
self.writeDigit(1, (value * 100) % 10)
self.writeDigit(3, (value * 1000) % 10)
self.writeDigit(4, (value * 10000) % 10)
def __init__(self, address=0x70, debug=False):
if (debug):
print "Initializing a new instance of LEDBackpack at 0x%02X" % address
LEDBackpack.__init__(self, 8, 8, address, debug)
self.rotation = 0
def __init__(self, address=0x70, debug=False):
if (debug):
print "Initializing a new instance of LEDBackpack at 0x%02X" % address
LEDBackpack.__init__(self, 8, 8, address, debug)
self.rotation = 0
class SevenSegment:
disp = None
# Hexadecimal character lookup table (row 1 = 0..9, row 2 = A..F)
digits = [
0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F, 0x77, 0x7C,
0x39, 0x5E, 0x79, 0x71
]
# Constructor
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)
def writeDigitRaw(self, charNumber, value):
"Sets a digit using the raw 16-bit value"
if (charNumber > 7):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, value)
def writeDigit(self, charNumber, value, dot=False):
"Sets a single decimal or hexademical value (0..9 and A..F)"
if (charNumber > 7):
return
if (value > 0xF):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, self.digits[value] | (dot << 7))
def setColon(self, state=True):
"Enables or disables the colon character"
# Warning: This function assumes that the colon is character '2',
# which is the case on 4 char displays, but may need to be modified
# if another display type is used
if (state):
self.disp.setBufferRow(2, 0xFFFF)
else:
self.disp.setBufferRow(2, 0)
def writeInt(self, value):
"""
Write The 'Value' to the display
"""
if value > 9999:
#Maxed OUT!
value = 9999
else:
value = int(value)
self.writeDigit(0, (value / 1000) % 10)
self.writeDigit(1, (value / 100) % 10)
self.writeDigit(3, (value / 10) % 10)
self.writeDigit(4, value % 10)
def writeNum(self, value):
if value > 999:
self.writeInt(value)
elif value > 99:
self.writeDigit(0, int(value / 100))
self.writeDigit(1, (value / 10) % 10)
self.writeDigit(3, value % 10, True) #Add Decimal
self.writeDigit(4, (value * 10) % 10)
elif value > 9:
self.writeDigit(0, int(value / 10))
self.writeDigit(1, value % 10, True)
self.writeDigit(3, (value * 10) % 10)
self.writeDigit(4, (value * 100 % 10))
else:
self.writeDigit(0, int(value * 10), True)
self.writeDigit(1, (value * 100) % 10)
self.writeDigit(3, (value * 1000) % 10)
self.writeDigit(4, (value * 10000) % 10)
#!/usr/bin/python # tsp_timer # # set timer display and handle button press import RPi.GPIO as GPIO import time import datetime from Adafruit_7Segment import SevenSegment from Adafruit_LEDBackpack import LEDBackpack segment = SevenSegment(address=0x73) backpack = LEDBackpack(address=0x73) backpack.setBrightness(15) BUTTON_GPIO = 17 # states constants STOP = 1 RUN = 2 HOLD = 3 timer_state = STOP last_timer_state = STOP hold_time = 0 timer_start = datetime.datetime.now() run_time = datetime.timedelta(0) GPIO.setmode(GPIO.BCM)
class Alphanumeric(object):
disp = None
# Hexadecimal character lookup table
lut = [
0b0000000000000001,
0b0000000000000010,
0b0000000000000100,
0b0000000000001000,
0b0000000000010000,
0b0000000000100000,
0b0000000001000000,
0b0000000010000000,
0b0000000100000000,
0b0000001000000000,
0b0000010000000000,
0b0000100000000000,
0b0001000000000000,
0b0010000000000000,
0b0100000000000000,
0b1000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0001001011001001,
0b0001010111000000,
0b0001001011111001,
0b0000000011100011,
0b0000010100110000,
0b0001001011001000,
0b0011101000000000,
0b0001011100000000,
0b0000000000000000, #
0b0000000000000110, # !
0b0000001000100000, # "
0b0001001011001110, # #
0b0001001011101101, # $
0b0000110000100100, # %
0b0010001101011101, # &
0b0000010000000000, # '
0b0010010000000000, # (
0b0000100100000000, # )
0b0011111111000000, # *
0b0001001011000000, # +
0b0000100000000000, # ,
0b0000000011000000, # -
0b0000000000000000, # .
0b0000110000000000, # /
0b0000110000111111, # 0
0b0000000000000110, # 1
0b0000000011011011, # 2
0b0000000010001111, # 3
0b0000000011100110, # 4
0b0010000001101001, # 5
0b0000000011111101, # 6
0b0000000000000111, # 7
0b0000000011111111, # 8
0b0000000011101111, # 9
0b0001001000000000, # :
0b0000101000000000, # ;
0b0010010000000000, # <
0b0000000011001000, # =
0b0000100100000000, # >
0b0001000010000011, # ?
0b0000001010111011, # @
0b0000000011110111, # A
0b0001001010001111, # B
0b0000000000111001, # C
0b0001001000001111, # D
0b0000000011111001, # E
0b0000000001110001, # F
0b0000000010111101, # G
0b0000000011110110, # H
0b0001001000000000, # I
0b0000000000011110, # J
0b0010010001110000, # K
0b0000000000111000, # L
0b0000010100110110, # M
0b0010000100110110, # N
0b0000000000111111, # O
0b0000000011110011, # P
0b0010000000111111, # Q
0b0010000011110011, # R
0b0000000011101101, # S
0b0001001000000001, # T
0b0000000000111110, # U
0b0000110000110000, # V
0b0010100000110110, # W
0b0010110100000000, # X
0b0001010100000000, # Y
0b0000110000001001, # Z
0b0000000000111001, # [
0b0010000100000000, #
0b0000000000001111, # ]
0b0000110000000011, # ^
0b0000000000001000, # _
0b0000000100000000, # `
0b0001000001011000, # a
0b0010000001111000, # b
0b0000000011011000, # c
0b0000100010001110, # d
0b0000100001011000, # e
0b0000000001110001, # f
0b0000010010001110, # g
0b0001000001110000, # h
0b0001000000000000, # i
0b0000000000001110, # j
0b0011011000000000, # k
0b0000000000110000, # l
0b0001000011010100, # m
0b0001000001010000, # n
0b0000000011011100, # o
0b0000000101110000, # p
0b0000010010000110, # q
0b0000000001010000, # r
0b0010000010001000, # s
0b0000000001111000, # t
0b0000000000011100, # u
0b0010000000000100, # v
0b0010100000010100, # w
0b0010100011000000, # x
0b0010000000001100, # y
0b0000100001001000, # z
0b0000100101001001, # {
0b0001001000000000, # |
0b0010010010001001, # }
0b0000010100100000, # ~
0b0011111111111111]
special = dict(degree= 0b0000000011100011, cone=0b0010100000001000)
def __init__(self, address=0x70, debug=False):
self.disp = LEDBackpack(address=address, debug=debug)
def writeCharRaw(self, charNumber, value):
"Sets a digit using the raw 16-bit value"
if (charNumber > 4):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, value)
def writeChar(self, charNumber, value, dot=False):
"Sets a single decimal or hexademical value (0..9 and A..F)"
if (charNumber > 4):
return
if value in self.special:
value = self.special[value]
else:
value = self.lut[ord(value)]
# Set the appropriate digit
self.disp.setBufferRow(charNumber, value | (dot << 14))
class FourteenSegment:
disp = None
# Hexadecimal character lookup table (row 1 = 0..9, row 2 = A..F)
digits = [ 0x3F, 0x06, 0xDB, 0xCF, 0xE6, 0xED, 0xFD, 0x07, 0xFF, 0xEF, \
0xF7, 0xFC, 0x39, 0xDE, 0x79, 0x71 ]
chars = [
0x1, #
0x2, #
0x4, #
0x8, #
0x10, #
0x20, #
0x40, #
0x80, #
0x100, #
0x200, #
0x400, #
0x800, #
0x1000, #
0x2000, #
0x4000, #
0x8000, #
0x0, #
0x0, #
0x0, #
0x0, #
0x0, #
0x0, #
0x0, #
0x0, #
0x12c9, #
0x15c0, #
0x12f9, #
0xe3, #
0x530, #
0x12c8, #
0x3a00, #
0x1700, #
0x0, #
0x6, # !
0x220, # "
0x12ce, # #
0x12ed, # $
0xc24, # %
0x235d, # &
0x400, # '
0x2400, # (
0x900, # )
0x3fc0, # *
0x12c0, # +
0x800, # ,
0xc0, # -
0x0, # .
0xc00, # /
0xc3f, # 0
0x6, # 1
0xdb, # 2
0x8f, # 3
0xe6, # 4
0x2069, # 5
0xfd, # 6
0x7, # 7
0xff, # 8
0xef, # 9
0x1200, # :
0xa00, # ;
0x2400, # <
0xc8, # =
0x900, # >
0x1083, # ?
0x2bb, # @
0xf7, # A
0x128f, # B
0x39, # C
0x120f, # D
0xf9, # E
0x71, # F
0xbd, # G
0xf6, # H
0x1200, # I
0x1e, # J
0x2470, # K
0x38, # L
0x536, # M
0x2136, # N
0x3f, # O
0xf3, # P
0x203f, # Q
0x20f3, # R
0xed, # S
0x1201, # T
0x3e, # U
0xc30, # V
0x2836, # W
0x2d00, # X
0x1500, # Y
0xc09, # Z
0x39, # [
0x2100, #
0xf, # ]
0xc03, # ^
0x8, # _
0x100, # `
0x1058, # a
0x2078, # b
0xd8, # c
0x88e, # d
0x858, # e
0x71, # f
0x48e, # g
0x1070, # h
0x1000, # i
0xe, # j
0x3600, # k
0x30, # l
0x10d4, # m
0x1050, # n
0xdc, # o
0x170, # p
0x486, # q
0x50, # r
0x2088, # s
0x78, # t
0x1c, # u
0x2004, # v
0x2814, # w
0x28c0, # x
0x200c, # y
0x848, # z
0x949, # {
0x1200, # |
0x2489, # }
0x520, # ~
0x3fff #
]
# Constructor
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)
def writeDigitRaw(self, charNumber, value):
"Sets a digit using the raw 16-bit value"
if (charNumber > 7):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, value)
def writeDigit(self, charNumber, value, dot=False):
"Sets a single decimal or hexademical value (0..9 and A..F)"
if (charNumber > 7):
return
if (value > 0xF):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, self.digits[value] | (dot << 14))
def writeChar(self, charNumber, value, dot=False):
"Writes an ascii character on the screen"
if (charNumber > 7):
return
# Set the appropriate character
self.disp.setBufferRow(charNumber, self.chars[ord(value)] | (dot << 14))
def setColon(self, state=True):
"Enables or disables the colon character"
# Warning: This function assumes that the colon is character '2',
# which is the case on 4 char displays, but may need to be modified
# if another display type is used
if (state):
self.disp.setBufferRow(2, 0x4000)
else:
self.disp.setBufferRow(2, 0)
# 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
class SevenSegment:
disp = None
# Hexadecimal character lookup table (row 1 = 0..9, row 2 = A..F)
digits = [ 0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F, \
0x77, 0x7C, 0x39, 0x5E, 0x79, 0x71 ]
# Constructor
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)
def writeDigitRaw(self, charNumber, value):
"Sets a digit using the raw 16-bit value"
if (charNumber > 7):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, value)
def writeDigit(self, charNumber, value, dot=False):
"Sets a single decimal or hexademical value (0..9 and A..F)"
if (charNumber > 7):
return
if (value > 0xF):
return
# Set the appropriate digit
self.disp.setBufferRow(charNumber, self.digits[value] | (dot << 7))
def setColon(self, state=True):
"Enables or disables the colon character"
# Warning: This function assumes that the colon is character '2',
# which is the case on 4 char displays, but may need to be modified
# if another display type is used
if (state):
self.disp.setBufferRow(2, 0xFFFF)
else:
self.disp.setBufferRow(2, 0)
def clear(self , position = 99 , update=True):
'Clears display'
if position == 99: self.disp.clear(update)
else: self.disp.setBufferRow(position , 0)
def getBuffer(self):
'Returns copy of display buffer'
return self.disp.getBuffer()
def setNumber(value):
if value < 0: self.setColon(True)
else: self.setColon(False)
self.writeDigit(0 , (abs(value) / 1000)%10)
self.writeDigit(1 , (abs(value) / 100)%10)
self.writeDigit(3 , (abs(value) / 10)%10)
self.writeDigit(4 , abs(value) % 10)
def setLetter(value):
if not 9 < value < 16: return
self.clear()
self.writeDigit(4 , value)
#!/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)
class ColorEightByEight(EightByEight):
disp = None
# Constructor
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)
def getBufferValue(self, i):
buffer = self.disp.getBuffer()
return buffer[i]
def setPixel(self, x, y, color=1):
"Sets a single pixel"
if (x >= 8):
return
if (y >= 8):
return
x %= 8
# Set the appropriate pixel
buffer = self.disp.getBuffer()
# TODO : Named color constants?
# ATNN : This code was mostly taken from the arduino code, but with the addition of clearing the other bit when setting red or green.
# The arduino code does not do that, and might have the bug where if you draw red or green, then the other color, it actually draws yellow.
# The bug doesn't show up in the examples because it's always clearing.
if (color == 1):
self.disp.setBufferRow(y, (buffer[y] | (1 << x)) & ~(1 << (x+8)) )
elif (color == 2):
self.disp.setBufferRow(y, (buffer[y] | 1 << (x+8)) & ~(1 << x) )
elif (color == 3):
self.disp.setBufferRow(y, buffer[y] | (1 << (x+8)) | (1 << x) )
else:
self.disp.setBufferRow(y, buffer[y] & ~(1 << x) & ~(1 << (x+8)) )
def setBrightness(self, brightness):
"Sets the brightness level from 0..15"
self.disp.setBrightness(brightness)
def setBlinkRate(self, blinkRate):
self.disp.setBrightness(blinkRate)
def clear(self):
"Clears the entire display"
self.disp.clear()
class EightByEight:
disp = None
# Constructor
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)
# ===========================================================================
# A single row operations
# ===========================================================================
def writeRowRaw(self, charNumber, value):
"Sets a row of pixels using a raw 16-bit value"
if charNumber > 7:
return
# Set the appropriate row
self.disp.setBufferRow(charNumber, self.wrapValue(value))
def writeMatrix(self, mx, color=1):
"Sets a 8x8 matrix"
row = 0
for value in mx:
if row > 7:
return
self.disp.setBufferRow(row, self.wrapValue(value), False)
row += 1
self.disp.writeDisplay()
def wrapValue(self, value):
"A function to mock 8x8 LED bug (offset and flip)"
valueHI = value & 0xFF00
valueLO = value & 0x00FF
valueLO = ((valueLO << 1) & 0xFF) | (valueLO >> 7)
flip = 0x00
for i in range(8):
flip = flip | ((2 ** (7 - i)) if (valueLO & 2 ** i) else 0)
valueLO = flip & 0x00FF
return valueHI | valueLO
# ===========================================================================
# A single pixel operations
# ===========================================================================
def setPixel(self, x, y):
"Sets a single pixel"
if (x > 7) | (y > 7):
return
# Set the appropriate pixel
value = 2 ** x
buffer = self.disp.getBuffer()
self.disp.setBufferRow(y, buffer[y] | self.wrapValue(value))
def clearPixel(self, x, y):
"Sets a single pixel"
if (x > 7) | (y > 7):
return
# Set the appropriate pixel
value = ~(2 ** x) & 0xFF
buffer = self.disp.getBuffer()
self.disp.setBufferRow(y, buffer[y] & self.wrapValue(value))
def switchPixel(self, x, y):
"Sets a single pixel"
if (x > 7) | (y > 7):
return
# Set the appropriate pixel
value = 2 ** x
buffer = self.disp.getBuffer()
self.disp.setBufferRow(y, buffer[y] ^ self.wrapValue(value))
# ===========================================================================
#
# ===========================================================================
def clear(self):
"Clears the entire display"
self.disp.clear()
#!/usr/bin/python
import time
import datetime
import Adafruit_GPIO.SPI as SPI
#import Adafruit_MAX31855.MAX31855 as MAX31855
from MAX31855 import MAX31855
from Adafruit_7Segment import SevenSegment
from Adafruit_LEDBackpack import LEDBackpack
segment = SevenSegment(address=0x72)
backpack = LEDBackpack(address=0x72)
backpack.setBrightness(1)
# Define a function to convert celsius to fahrenheit.
def c_to_f(c):
return c * 9.0 / 5.0 + 32.0
# Raspberry Pi software SPI configuration.
CLK = 24
CS = 23
DO = 18
#sensor = MAX31855.MAX31855(CLK, CS, DO)
sensor = MAX31855(CLK, CS, DO)
# ===========================================================================
# Clock Example
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)
class SevenSegment:
disp = None
# Some 7Segment-Display have several different colons, e.g. the
# 1,2" display. To seperately control such different colons
# use the following values where applicable:
#
# 0x00 - nothing
# 0x02 - center colon
# 0x04 - left colon - upper dot
# 0x08 - left colon - lower dot
# 0x10 - decimal point
# 0xFFFF - everything (default)
mask_colons = 0xFFFF
# Hexadecimal character lookup table (row 1 = 0..9, row 2 = A..F)
DIGITS_NORMAL = [ 0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F, \
0x77, 0x7C, 0x39, 0x5E, 0x79, 0x71 ]
# inverted table from https://github.com/tomgidden/Adafruit-Raspberry-Pi-Python-Code/commit/87bed18ecc8e251f3c10433d8a31d363dbbd355c
# thx to tomgidden@github for this
DIGITS_INVERTED = [ 0x3F, 0x30, 0x5B, 0x79, 0x74, 0x6D, 0x6F, 0x38, 0x7F, 0x7D, \
0x7E, 0x67, 0x0F, 0x73, 0x4F, 0x4E ]
digits = DIGITS_NORMAL
display_inverted = False
# Constructor
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)
def invertDisplay(self):
if (self.display_inverted
): # we were inverted, so switch back to normal
self.digits = self.DIGITS_NORMAL
self.display_inverted = False
else: # we were displaying normally, so switch to inverted
self.digits = self.DIGITS_INVERTED
self.display_inverted = True
def writeDigitRaw(self, charNumber, value):
"Sets a digit using the raw 16-bit value"
if (charNumber > 7):
return
if ((self.display_inverted) & (charNumber < 5)):
"if inverted we need to use reverse character positioning"
charNumber = 4 - charNumber
# Set the appropriate digit
self.disp.setBufferRow(charNumber, value)
def writeDigit(self, charNumber, value, dot=False):
"Sets a single decimal or hexademical value (0..9 and A..F)"
if (charNumber > 7):
return
if (value > 0xF):
return
if ((self.display_inverted) & (charNumber < 5)):
"if inverted we need to use reverse character positioning"
charNumber = 4 - charNumber
# Set the appropriate digit
self.disp.setBufferRow(charNumber, self.digits[value] | (dot << 7))
def setColon(self, state=True):
"Enables or disables the colon character"
# Warning: This function assumes that the colon is character '2',
# which is the case on 4 char displays, but may need to be modified
# if another display type is used
if (state):
self.disp.setBufferRow(2, self.mask_colons)
else:
self.disp.setBufferRow(2, 0)
