kopia lustrzana https://github.com/jamesgao/kiln_controller
42 wiersze
1.1 KiB
Python
42 wiersze
1.1 KiB
Python
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import smbus
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import struct
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from collections import namedtuple
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Status = namedtuple('Status', 'ignite flame motor main_temp weight aux_temp0 aux_temp1')
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class Kiln(object):
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fmt = struct.Struct('<2BI4f')
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def __init__(self, addr, bus=1):
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self.bus = smbus.SMBus(1)
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self.addr = addr
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@property
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def status(self):
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chars = map(chr, self.bus.read_i2c_block_data(self.addr, 0, self.fmt.size))
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return Status._make(self.fmt.unpack(''.join(chars)))
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def __repr__(self):
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return repr(self.status)
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@property
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def motor(self):
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return self.status.motor
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@motor.setter
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def motor(self, pos):
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out = map(ord, struct.pack('I',pos))
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self.bus.write_i2c_block_data(self.addr,ord('M'), out)
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@property
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def temperature(self):
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data = self.bus.read_i2c_block_data(self.addr,ord('T'), 4)
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return struct.unpack('<f', ''.join(map(chr, data)))[0]
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@property
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def ignite(self):
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return self.status.ignite
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@ignite.setter
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def ignite(self, output):
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self.bus.write_i2c_block_data(self.addr,ord('I'), [int(output)])
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