add hibernation thresh

Author: ladyada

adafruit_max1704x.py

@@ -107,3 +107,14 @@ def activity_threshold(self, threshold_voltage):
             raise ValueError("Activity voltage change must be between 0 and 0.31875 Volts")
         self._hibrt_actthr  = int(threshold_voltage / 0.00125) # 1.25mV per LSB
 
+
+    @property
+    def hibernation_threshold(self):
+        return self._hibrt_hibthr * 0.208  # 0.208% per hour
+
+    @hibernation_threshold.setter
+    def hibernation_threshold(self, threshold_percent):
+        if (not 0 <= threshold_percent <= (255 * 0.208)):
+            raise ValueError("Activity percentage/hour change must be between 0 and 53%")
+        self._hibrt_hibthr  = int(threshold_percent / 0.208)  # 0.208% per hour
+

examples/max1704x_simpletest.py

@@ -16,8 +16,11 @@
 
 print("Found MAX1704x with chip version", hex(max17.chip_version))
 
-max17.activity_threshold = 0.1
-print("MAX1704x activity threshold = %0.2f V" % max17.activity_threshold)
+#max17.activity_threshold = 0.15
+#print("MAX1704x activity threshold = %0.2f V" % max17.activity_threshold)
+
+max17.hibernation_threshold = 5
+print("MAX1704x hibernation threshold = %0.2f %%" % max17.hibernation_threshold)
 
 
 while True: