anchor.diff:    
     {ok, I2cRef} = attrib_utils:get_value(Private, i2c_ref),
     {ok, DegF} = attrib_utils:get_value(Config, deg_f),
  -  {ok, Offset} = attrib_utils:get_value(Config, offset),
  +  {ok, Offset} = attrib_utils:get_value(Config, temp_offset),
     
     % Read the ambient temperature
     case read_ambient(I2cRef, DegF, Offset) of
  
positive.code:       
        
        {ok, DegF} = attrib_utils:get_value(Config, deg_f),
        {ok, Offset} = attrib_utils:get_value(Config, offset),
    
        % Read the ambient temperature
        case read_ambient(I2cRef, DegF, Offset) of
  
negative.code:       {i2c_device, {"i2c-1"}},
        {i2c_addr, {16#18}},
        {deg_f, {true}},
        {temp_offset, {0.0}}
      ]). 
  
  
  