class Mcp9800::Mcp9800
Constants
- I2C_ADDRESS
Public Class Methods
new(i2c)
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# File lib/mcp9800.rb, line 13 def initialize i2c @i2c = i2c end
Public Instance Methods
configuration()
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# File lib/mcp9800.rb, line 22 def configuration read_byte Registers::CONFIGURATION end
configuration=(value)
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# File lib/mcp9800.rb, line 26 def configuration= value write Registers::CONFIGURATION, value end
temperature()
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# File lib/mcp9800.rb, line 17 def temperature value = read_short Registers::AMBIENT_TEMPERATURE (value / 256.0).round(1) end
Private Instance Methods
read(register, read_bytes = 1)
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# File lib/mcp9800.rb, line 31 def read register, read_bytes = 1 @i2c.read I2C_ADDRESS , read_bytes , register end
read_byte(register)
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# File lib/mcp9800.rb, line 35 def read_byte register data = read register data.unpack("C").first end
read_short(register)
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# File lib/mcp9800.rb, line 40 def read_short register data = read register, 2 data.unpack("s>").first end
write(register, *values)
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# File lib/mcp9800.rb, line 45 def write register, *values @i2c.write I2C_ADDRESS, register, *values end