diff --git a/frappy_psi/dtmpressure.py b/frappy_psi/dtmpressure.py new file mode 100644 index 00000000..a235bc60 --- /dev/null +++ b/frappy_psi/dtmpressure.py @@ -0,0 +1,37 @@ +# ***************************************************************************** +# This program is free software; you can redistribute it and/or modify it under +# the terms of the GNU General Public License as published by the Free Software +# Foundation; either version 2 of the License, or (at your option) any later +# version. +# +# This program is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +# details. +# +# You should have received a copy of the GNU General Public License along with +# this program; if not, write to the Free Software Foundation, Inc., +# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +# Module authors: +# Anik Stark +# ***************************************************************************** + +from frappy.core import StringIO, HasIO, Readable, Parameter, Property, FloatRange + + +class IO(StringIO): + end_of_line = '\r' + identification = [('IDN*', '.*')] # expected reply? + default_settings = {'baudrate': 9600} + + +class Pressure(HasIO, Readable): + + ioClass = IO + + value = Parameter('pressure', datatype=FloatRange(unit='mbar')) + scale = Property('global scale factor', datatype=FloatRange(), default=1) + + def read_value(self): + return self.communicate('PRES?') / self.scale # any other reply?