File size: 2,844 Bytes
ce4b573 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 | #!/usr/bin/env python
import socket
import time
from struct import pack
class SigmoidMotion:
HOST = '172.22.99.206'
PORT = 2342
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
colorA = {'red': 0x66, 'green': 0xCC, 'blue': 0x00}
colorB = {'red': 0xCC, 'green': 0x66, 'blue': 0x00}
# header
data = [pack('b', 0x0F), pack('b', 0), pack('!h', 678)]
# east side LEDs
left = pack('BBB', colorA['blue'], colorA['green'], colorA['red'])
# west side LEDs
right = pack('BBB', colorB['blue'], colorB['green'], colorB['red'])
period = 3000 # five minutes
transitionLength = 40 # four seconds
maxRuntime = 36000 # sixty minutes
def ramp(self, start, end, time):
fres = start + time*(float(end - start)/self.transitionLength)
return abs(int(fres))
def packet(self):
self.data = [pack('b', 0x0F), pack('b', 0), pack('!h', 678)]
for i in range(0, 226):
if i < 3:
self.data.append(self.right)
elif i < 13:
self.data.append(self.left)
elif i < 19:
self.data.append(self.right)
elif i < 120:
self.data.append(self.left)
else:
self.data.append(self.right)
return ''.join(self.data)
def transition(self, time, asc):
left = {}
right = {}
if asc:
colorA = self.colorA
colorB = self.colorB
else:
colorA = self.colorB
colorB = self.colorA
for col in ['red', 'green', 'blue']:
left[col] = self.ramp(colorA[col], colorB[col], time)
right[col] = self.ramp(colorB[col], colorA[col], time)
self.left = pack('BBB', left['blue'], left['green'], left['red'])
self.right = pack('BBB', right['blue'], right['green'], right['red'])
def __call__(self):
globaltimer = 0
timer = 0
epoch = 0
transitionEnd = self.transitionLength + self.period
asc = True
while globaltimer < self.maxRuntime:
globaltimer = globaltimer + 1
timer = timer + 1
if timer < self.period:
self.s.sendto(self.packet(), (self.HOST, self.PORT))
time.sleep(0.09)
continue
elif timer == self.period:
epoch = timer
self.transition(timer-epoch, asc)
elif timer > self.period and timer < transitionEnd:
self.transition(timer-epoch, asc)
else:
asc = not asc
timer = 0
self.s.sendto(self.packet(), (self.HOST, self.PORT))
time.sleep(0.08)
self.s.close()
if __name__ == '__main__':
sigmo = SigmoidMotion()
sigmo()
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