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Øyvind Kolås
firmware
Commits
902ade82
Commit
902ade82
authored
Apr 11, 2020
by
schneider
Browse files
fix(spo2): Use averaging from TomoStrap
parent
d7b8753d
Changes
1
Hide whitespace changes
Inline
Side-by-side
preload/apps/spo2/__init__.py
View file @
902ade82
...
...
@@ -24,6 +24,7 @@ class SPO2:
self
.
filtered_value
=
0.0
self
.
source
=
"Red"
self
.
average
=
0
self
.
prev_w
=
0
def
open
(
self
):
def
callback
(
datasets
):
...
...
@@ -46,13 +47,19 @@ class SPO2:
while
buttons
.
read
(
buttons
.
BOTTOM_RIGHT
):
pass
def
update_history
(
self
,
datasets
):
alpha
=
0.995
alpha
=
0.99
7
5
for
val
in
datasets
:
"""
print
(
"%d,%d"
%
(
val
.
red
,
val
.
infrared
))
if
self
.
source
==
"Red"
:
self.avg[self.avg_pos]
= val.red
d
=
val
.
red
else
:
self.avg[self.avg_pos] = val.infrared
d
=
val
.
infrared
w
=
d
+
self
.
prev_w
*
0.95
self
.
history
.
append
(
w
-
self
.
prev_w
)
self
.
prev_w
=
w
"""
self.avg[self.avg_pos] = d
if self.avg_pos < 9:
self.avg_pos += 1
...
...
@@ -68,15 +75,11 @@ class SPO2:
self.history.append(self.filtered_value)
"""
#print("%d,%d" % (val.red, val.infrared))
if
self
.
source
==
"Red"
:
d
=
val
.
red
else
:
d
=
val
.
infrared
"""
self.average = alpha * self.average + (1 - alpha) * d
d -= self.average
self.history.append(d)
"""
# trim old elements
self
.
history
=
self
.
history
[
-
self
.
HISTORY_MAX
:]
...
...
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