Merge pull request #598 from Kantipudi-Supriya/ad7191

Ad7191

Author: tfcollins

adi/ad719x.py

@@ -24,7 +24,7 @@ def __init__(self, uri="", device_name=""):
         """Constructor for AD719x class."""
         context_manager.__init__(self, uri, self._device_name)
 
-        compatible_parts = ["ad7190", "ad7192", "ad7193", "ad7194", "ad7195"]
+        compatible_parts = ["ad7190", "ad7191","ad7192", "ad7193", "ad7194", "ad7195"]
 
         self._ctrl = None
 
@@ -90,14 +90,15 @@ def offset(self, value):
     def to_volts(self, index, val):
         """Converts raw value to SI."""
         _scale = self.channel[index].scale
+        _offset = self.channel[index].offset
 
         ret = None
 
         if isinstance(val, np.int32):
-            ret = val * _scale
+            ret = (val + _offset) / 1000 * _scale
 
         if isinstance(val, np.ndarray):
-            ret = [x * _scale for x in val]
+            ret = [((x + _offset) / 1000) * _scale for x in val]
 
         if ret is None:
             raise Exception("Error in converting to actual voltage")

supported_parts.md

@@ -87,6 +87,7 @@
 - AD7176-2
 - AD7177-2
 - AD7190
+- AD7191
 - AD7192
 - AD7193
 - AD7194