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Add support for history

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This commit is contained in:
Phil Howard
2020-08-28 12:25:22 +01:00
parent 3a23dfbed1
commit 5928f99e29
1 changed files with 15 additions and 0 deletions
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15
library/grow/moisture.py
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@@ -30,6 +30,8 @@ class Moisture(object):
self._count = 0 self._count = 0
self._reading = 0 self._reading = 0
self._history = []
self._history_length = 200
self._last_pulse = time.time() self._last_pulse = time.time()
self._new_data = False self._new_data = False
self._wet_point = wet_point if wet_point is not None else 0.7 self._wet_point = wet_point if wet_point is not None else 0.7
@@ -56,10 +58,23 @@ dtoverlay=spi0-cs,cs0_pin=14 # Re-assign CS0 from BCM 8 so that Grow can use it
self._last_pulse = time.time() self._last_pulse = time.time()
if self._time_elapsed >= 1.0: if self._time_elapsed >= 1.0:
self._reading = self._count / self._time_elapsed self._reading = self._count / self._time_elapsed
self._history.insert(0, self._reading)
self._history = self._history[:self._history_length]
self._count = 0 self._count = 0
self._time_last_reading = time.time() self._time_last_reading = time.time()
self._new_data = True self._new_data = True
@property
def history(self):
history = []
for moisture in self._history:
saturation = float(moisture - self._dry_point) / self.range
saturation = round(saturation, 3)
history.append(max(0.0, min(1.0, saturation)))
return history
@property @property
def _time_elapsed(self): def _time_elapsed(self):
return time.time() - self._time_last_reading return time.time() - self._time_last_reading