kopia lustrzana https://github.com/jamesgao/kiln_controller
228 wiersze
6.8 KiB
Python
228 wiersze
6.8 KiB
Python
#!/usr/bin/python
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import threading
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import time
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import datetime
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from Adafruit_LEDBackpack import LEDBackpack
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# ===========================================================================
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# Alphanumeric Display
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# ===========================================================================
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# This class is meant to be used with the 4-character alphanumeric
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# displays available from Adafruit
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class Alphanumeric(object):
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disp = None
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# Hexadecimal character lookup table
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lut = [
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0b0000000000000001,
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0b0000000000000010,
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0b0000000000000100,
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0b0000000000001000,
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0b0000000000010000,
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0b0000000000100000,
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0b0000000001000000,
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0b0000000010000000,
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0b0000000100000000,
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0b0000001000000000,
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0b0000010000000000,
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0b0000100000000000,
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0b0001000000000000,
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0b0010000000000000,
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0b0100000000000000,
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0b1000000000000000,
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0b0000000000000000,
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0b0000000000000000,
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0b0000000000000000,
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0b0000000000000000,
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0b0000000000000000,
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0b0000000000000000,
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0b0000000000000000,
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0b0000000000000000,
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0b0001001011001001,
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0b0001010111000000,
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0b0001001011111001,
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0b0000000011100011,
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0b0000010100110000,
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0b0001001011001000,
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0b0011101000000000,
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0b0001011100000000,
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0b0000000000000000, #
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0b0000000000000110, # !
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0b0000001000100000, # "
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0b0001001011001110, # #
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0b0001001011101101, # $
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0b0000110000100100, # %
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0b0010001101011101, # &
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0b0000010000000000, # '
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0b0010010000000000, # (
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0b0000100100000000, # )
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0b0011111111000000, # *
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0b0001001011000000, # +
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0b0000100000000000, # ,
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0b0000000011000000, # -
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0b0000000000000000, # .
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0b0000110000000000, # /
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0b0000110000111111, # 0
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0b0000000000000110, # 1
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0b0000000011011011, # 2
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0b0000000010001111, # 3
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0b0000000011100110, # 4
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0b0010000001101001, # 5
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0b0000000011111101, # 6
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0b0000000000000111, # 7
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0b0000000011111111, # 8
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0b0000000011101111, # 9
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0b0001001000000000, # :
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0b0000101000000000, # ;
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0b0010010000000000, # <
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0b0000000011001000, # =
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0b0000100100000000, # >
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0b0001000010000011, # ?
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0b0000001010111011, # @
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0b0000000011110111, # A
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0b0001001010001111, # B
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0b0000000000111001, # C
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0b0001001000001111, # D
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0b0000000011111001, # E
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0b0000000001110001, # F
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0b0000000010111101, # G
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0b0000000011110110, # H
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0b0001001000000000, # I
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0b0000000000011110, # J
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0b0010010001110000, # K
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0b0000000000111000, # L
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0b0000010100110110, # M
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0b0010000100110110, # N
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0b0000000000111111, # O
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0b0000000011110011, # P
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0b0010000000111111, # Q
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0b0010000011110011, # R
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0b0000000011101101, # S
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0b0001001000000001, # T
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0b0000000000111110, # U
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0b0000110000110000, # V
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0b0010100000110110, # W
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0b0010110100000000, # X
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0b0001010100000000, # Y
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0b0000110000001001, # Z
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0b0000000000111001, # [
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0b0010000100000000, #
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0b0000000000001111, # ]
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0b0000110000000011, # ^
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0b0000000000001000, # _
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0b0000000100000000, # `
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0b0001000001011000, # a
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0b0010000001111000, # b
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0b0000000011011000, # c
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0b0000100010001110, # d
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0b0000100001011000, # e
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0b0000000001110001, # f
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0b0000010010001110, # g
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0b0001000001110000, # h
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0b0001000000000000, # i
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0b0000000000001110, # j
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0b0011011000000000, # k
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0b0000000000110000, # l
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0b0001000011010100, # m
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0b0001000001010000, # n
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0b0000000011011100, # o
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0b0000000101110000, # p
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0b0000010010000110, # q
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0b0000000001010000, # r
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0b0010000010001000, # s
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0b0000000001111000, # t
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0b0000000000011100, # u
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0b0010000000000100, # v
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0b0010100000010100, # w
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0b0010100011000000, # x
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0b0010000000001100, # y
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0b0000100001001000, # z
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0b0000100101001001, # {
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0b0001001000000000, # |
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0b0010010010001001, # }
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0b0000010100100000, # ~
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0b0011111111111111]
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special = dict(degree= 0b0000000011100011, cone=0b0010100000001000)
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def __init__(self, address=0x70, debug=False):
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self.disp = LEDBackpack(address=address, debug=debug)
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def writeCharRaw(self, charNumber, value):
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"Sets a digit using the raw 16-bit value"
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if (charNumber > 4):
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return
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# Set the appropriate digit
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self.disp.setBufferRow(charNumber, value)
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def writeChar(self, charNumber, value, dot=False):
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"Sets a single decimal or hexademical value (0..9 and A..F)"
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if (charNumber > 4):
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return
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if value in self.special:
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value = self.special[value]
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else:
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value = self.lut[ord(value)]
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# Set the appropriate digit
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self.disp.setBufferRow(charNumber, value | (dot << 14))
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class AlphaScroller(threading.Thread):
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def __init__(self, address=0x70, interval=.25):
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self.interval = interval
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self.disp = Alphanumeric(address)
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self.text = [(' ',)]*4
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self.counter = 0
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super(AlphaScroller, self).__init__()
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self.running = True
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def stop(self):
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self.running = False
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def set_text(self, text, pad=True, reset=True):
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i = 0
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self.text = []
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while i < len(text):
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if i+1 < len(text) and text[i+1] == ".":
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self.text.append((text[i], True))
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i+= 1
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else:
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self.text.append((text[i],))
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i+= 1
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if pad:
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self.text += [(' ',)]*4
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if reset:
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self.counter = 0
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def set_speed(self, interval):
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self.interval = interval
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def run(self):
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while self.running:
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for i in range(4):
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if len(self.text) < 4:
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char = self.text[i] if i < len(self.text) else (' ',)
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else:
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char = self.text[(self.counter+i) % len(self.text)]
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if len(char[0]) == 0:
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print self.text
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self.disp.writeChar(i, *char)
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time.sleep(self.interval)
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self.counter += 1
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for i in range(4):
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self.disp.writeChar(i, ' ')
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if __name__ == "__main__":
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scroller = AlphaScroller(interval=.4)
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scroller.set_text(list("Hello. World.")+["cone","degree"])
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scroller.start()
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try:
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while scroller.isAlive():
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scroller.join(1)
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except KeyboardInterrupt:
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scroller.stop()
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