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p
o
n
d
s
i
s
a
n
i
m
p
o
r
ta
n
t
f
ac
to
r
.
T
h
e
id
ea
l
te
m
p
er
atu
r
e
to
ler
an
ce
r
an
g
e
f
o
r
ca
tf
is
h
ac
co
r
d
in
g
t
o
SNI
n
u
m
b
er
01
-
6
4
8
3
.
3
-
2
0
0
0
is
b
etw
ee
n
2
5
-
30
℃.
Po
o
l
w
ater
te
m
p
er
at
u
r
e
af
f
ec
ts
w
ater
q
u
alit
y
[
1
7
]
.
Ox
y
g
e
n
s
o
l
u
b
ilit
y
i
s
o
n
e
o
f
th
e
c
h
ar
ac
ter
is
tic
s
o
f
w
ater
q
u
alit
y
th
at
i
s
af
f
ec
ted
b
y
te
m
p
er
atu
r
e
v
ar
iatio
n
s
.
W
ith
in
cr
ea
s
i
n
g
te
m
p
er
atu
r
e,
th
e
le
v
el
o
f
s
o
lu
b
il
it
y
o
f
o
x
y
g
en
d
ec
r
ea
s
es
[
1
8
]
,
[
1
9
]
.
On
ce
th
er
e
is
a
n
in
cr
ea
s
e
i
n
te
m
p
er
atu
r
e,
th
e
a
m
o
u
n
t
o
f
s
o
lu
b
ilit
y
o
f
o
x
y
g
en
i
n
w
ater
w
il
l
d
ec
r
ea
s
e.
An
in
cr
ea
s
e
in
te
m
p
er
atu
r
e
ca
u
s
e
s
th
e
m
etab
o
lic
ac
tiv
it
y
o
f
f
i
s
h
to
b
e
g
r
ea
ter
w
h
ic
h
r
esu
lt
s
in
a
d
o
u
b
lin
g
o
f
o
x
y
g
en
co
n
s
u
m
p
tio
n
in
f
is
h
.
L
o
w
w
a
ter
te
m
p
er
atu
r
e
ca
n
af
f
e
ct
th
e
ab
ilit
y
o
f
f
is
h
to
b
in
d
o
x
y
g
e
n
s
o
th
at
it
ca
n
in
h
ib
it
f
is
h
d
ev
elo
p
m
e
n
t
[
2
0
]
.
Fis
h
th
a
t
ex
p
er
ien
ce
s
tr
es
s
r
ed
u
ce
s
ta
m
i
n
a
an
d
r
ed
u
ce
h
u
n
g
er
,
an
d
ev
en
t
u
all
y
s
tar
v
e
to
d
ea
th
[
1
6
]
.
T
h
e
DS1
8
B
2
0
tem
p
er
atu
r
e
s
e
n
s
o
r
is
a
d
ev
ice
t
h
at
ca
n
r
ea
d
te
m
p
er
atu
r
e
v
ar
iatio
n
s
a
n
d
t
h
e
n
tr
a
n
s
late
th
ese
ch
a
n
g
es
in
to
elec
tr
ical
q
u
an
tit
ies.
T
h
is
s
en
s
o
r
is
co
n
n
ec
ted
to
th
e
m
icr
o
co
n
tr
o
ller
u
s
i
n
g
a
s
in
g
le
ca
b
le
an
d
is
a
d
ig
ital
s
e
n
s
o
r
.
T
h
ese
s
en
s
o
r
s
ar
e
s
p
ec
ial
b
ec
au
s
e
e
ac
h
s
en
s
o
r
co
n
tain
s
a
s
er
ial
co
d
e
th
at
allo
w
s
t
h
e
u
s
e
o
f
m
u
ltip
le
DS1
8
B
2
0
s
in
o
n
e
-
w
ir
e
tr
a
n
s
m
i
s
s
io
n
.
T
h
is
s
en
s
o
r
ca
n
b
e
u
s
ed
w
it
h
3
.
0
to
5
.
5
V.
T
h
e
s
en
s
o
r
h
as
±
0
.
5
°C
ac
c
u
r
ac
y
f
r
o
m
-
1
0
to
+8
5
°C
an
d
ca
n
b
e
u
s
ed
i
n
t
h
e
te
m
p
er
at
u
r
e
r
an
g
e
o
f
-
5
5
to
1
2
5
°C
(
-
6
7
to
+2
5
7
°F
)
w
ith
a
r
eso
lu
tio
n
o
f
9
to
1
2
b
its
[
2
1
]
.
SEN0
2
3
7
g
r
av
it
y
a
n
alo
g
d
is
s
o
l
v
ed
o
x
y
g
en
s
en
s
o
r
is
a
s
en
s
o
r
f
o
r
m
ea
s
u
r
i
n
g
d
is
s
o
lv
ed
o
x
y
g
en
le
v
el
s
in
w
a
ter
.
T
h
ese
s
en
s
o
r
s
ar
e
w
id
el
y
u
s
ed
i
n
v
a
r
io
u
s
w
ater
-
r
elate
d
s
ec
to
r
s
,
in
cl
u
d
in
g
r
esear
ch
,
aq
u
ac
u
lt
u
r
e,
an
d
m
o
n
ito
r
in
g
o
f
th
e
aq
u
at
ic
en
v
ir
o
n
m
en
t.
T
h
is
s
e
n
s
o
r
is
o
p
en
s
o
u
r
ce
an
d
co
m
p
atib
le
w
i
th
v
ar
io
u
s
m
icr
o
co
n
tr
o
ller
s
,
allo
w
in
g
u
s
er
s
to
u
s
e
it
f
r
ee
l
y
an
d
o
p
en
l
y
.
T
h
is
s
en
s
o
r
h
as
a
g
al
v
an
ic
p
r
o
b
e
ty
p
e
w
it
h
a
d
etec
tio
n
r
a
n
g
e
o
f
0
to
2
0
m
g
/
L
.
T
h
is
s
e
n
s
o
r
h
a
s
a
r
esp
o
n
s
e
ti
m
e
o
f
u
p
to
9
8
%
f
u
ll
r
esp
o
n
s
e,
w
ith
in
9
0
s
ec
o
n
d
s
(
2
5
℃)
s
en
s
o
r
p
r
ess
u
r
e
r
an
g
e
f
r
o
m
0
to
50
p
s
i
w
it
h
elec
tr
o
d
e
s
er
v
ice
lif
e
g
e
n
er
all
y
f
o
r
1
y
ea
r
f
o
r
n
o
r
m
al
u
s
e
[
2
2
]
.
No
d
eM
C
U
E
SP
8
2
6
6
is
a
m
icr
o
co
n
tr
o
ller
eq
u
ip
p
ed
w
it
h
t
h
e
E
SP
8
2
6
6
ch
ip
.
T
h
is
m
icr
o
co
n
tr
o
ller
h
as
m
u
ltip
le
i
n
p
u
t
o
r
o
u
tp
u
t
p
o
r
ts
to
en
ab
le
m
o
n
i
to
r
in
g
a
n
d
co
n
tr
o
l
ap
p
licatio
n
s
f
o
r
I
o
T
p
r
o
j
ec
ts
.
T
h
e
No
d
eM
C
U
E
SP
8
2
6
6
is
a
n
ev
o
lu
tio
n
o
f
th
e
E
SP
8
2
6
6
v
er
s
io
n
o
f
th
e
E
SP
-
1
2
I
o
T
p
latf
o
r
m
m
o
d
u
le
f
a
m
il
y
.
T
h
is
m
o
d
u
le
w
o
r
k
s
v
er
y
s
i
m
il
ar
l
y
to
t
h
e
A
r
d
u
i
n
o
m
o
d
u
le
p
l
atf
o
r
m
in
ter
m
s
o
f
f
u
n
ctio
n
alit
y
,
b
u
t t
h
e
d
if
f
er
en
c
e
is
"
co
n
n
ec
ted
to
th
e
in
ter
n
et
"
[
2
3
]
.
Sev
er
al
s
t
u
d
ies
th
a
t
h
av
e
b
ee
n
co
n
d
u
cted
r
eg
ar
d
in
g
th
e
m
ea
s
u
r
e
m
en
t
o
f
w
ater
q
u
ali
t
y
i
n
aq
u
ac
u
lt
u
r
e
p
o
n
d
s
.
Fo
r
in
s
ta
n
ce
,
Mo
r
en
o
-
R
o
d
en
as
et
a
l
.
[
2
4
]
in
2
0
1
7
w
as
w
o
r
k
in
g
o
n
a
d
ata
ac
q
u
is
i
tio
n
s
y
s
te
m
f
o
r
m
ea
s
u
r
in
g
d
is
s
o
lv
ed
o
x
y
g
en
l
ev
els
w
i
th
th
e
r
es
u
lt
s
t
h
at
t
h
e
av
er
ag
e
d
is
s
o
lv
ed
o
x
y
g
en
le
v
el
is
i
n
th
e
r
a
n
g
e
o
f
3
to
5
m
g
/
L
i
n
r
ain
y
co
n
d
itio
n
s
an
d
b
et
w
ee
n
3
to
7
m
g
/
L
o
n
clo
u
d
y
co
n
d
itio
n
s
.
Ne
x
t,
r
esea
r
ch
b
y
K
u
s
tij
a
an
d
An
d
ik
a
[
2
5
]
in
2
0
2
1
,
w
as
s
h
o
w
i
n
g
a
s
y
s
te
m
f
o
r
m
o
n
ito
r
i
n
g
t
e
m
p
er
at
u
r
e
an
d
d
is
s
o
l
v
e
d
o
x
y
g
e
n
le
v
els
i
n
ca
tf
is
h
p
o
n
d
s
w
i
th
t
h
e
R
asp
b
er
r
y
P
i
th
a
t
w
as
o
b
tain
ed
t
h
e
w
ater
te
m
p
er
atu
r
e
v
ar
ied
w
i
th
ti
m
e.
F
u
r
th
er
m
o
r
e,
r
esear
ch
b
y
B
i
m
a
et
a
l.
[
2
6
]
in
2
0
1
8
b
u
ilt
a
te
m
p
er
atu
r
e
r
em
o
te
m
o
n
ito
r
in
g
s
y
s
te
m
i
n
B
a
n
g
k
o
k
t
ilap
ia
p
o
n
d
s
,
th
e
e
f
f
ec
ti
v
e
te
m
p
er
at
u
r
e
f
o
r
f
i
s
h
p
o
n
d
w
ater
w
a
s
an
i
n
d
icato
r
o
f
2
8
to
3
0
°C
.
T
o
f
il
l
th
e
n
ee
d
s
o
f
f
i
s
h
co
n
s
u
m
e
s
,
aq
u
ac
u
ltu
r
e
m
et
h
o
d
s
h
av
e
b
ee
n
f
o
r
ce
d
to
o
v
er
p
r
o
d
u
ce
an
d
r
esu
lti
n
g
in
t
h
e
ac
ce
ler
ated
w
ater
en
v
ir
o
n
m
e
n
t
d
eg
r
ad
at
io
n
a
n
d
th
e
o
ld
o
f
ag
r
icu
l
tu
r
al
w
o
r
k
er
s
in
m
a
n
y
p
ar
ts
o
f
th
e
w
o
r
ld
s
o
w
ill
f
ac
e
th
e
d
ile
m
m
a
o
f
s
h
o
r
tag
e
o
f
lab
o
r
,
an
d
I
o
T
aq
u
ac
u
ltu
r
e
m
et
h
o
d
is
o
n
e
o
f
th
e
m
e
th
o
d
th
at
ca
n
r
eso
lv
e
th
e
is
s
u
e
[
2
7
]
.
F
is
h
f
ar
m
in
g
h
a
s
b
ee
n
ap
p
lied
w
id
el
y
r
ec
e
n
tl
y
.
I
n
B
an
g
lad
e
s
h
,
f
i
s
h
m
o
n
i
to
r
in
g
h
ad
b
ee
n
s
tu
d
ied
b
ased
o
n
I
o
T
s
o
it
n
o
tif
ied
th
e
u
s
er
th
e
a
m
o
u
n
t
o
f
d
is
s
o
l
v
ed
o
x
y
g
e
n
,
a
m
m
o
n
ia
lev
el,
p
H
lev
el,
an
d
w
ater
b
o
d
y
te
m
p
er
atu
r
e.
I
t
ca
n
h
e
lp
f
i
s
h
f
ar
m
er
s
to
m
ea
s
u
r
e
th
e
p
ar
a
m
eter
s
an
d
p
r
o
v
id
e
n
ec
e
s
s
ar
y
t
h
in
g
s
to
g
r
o
w
m
o
r
e
f
is
h
a
n
d
f
ac
i
n
g
w
ater
p
o
llu
tio
n
[
2
8
]
.
L
atest
r
esear
ch
b
y
L
o
h
et
a
l.
[
2
9
]
s
h
o
w
ed
t
h
at
to
ad
d
r
ess
th
e
c
h
alle
n
g
es
o
f
m
a
in
ta
in
i
n
g
aq
u
at
ic
e
n
v
ir
o
n
m
e
n
t,
I
o
T
f
is
h
f
ar
m
m
o
n
it
o
r
in
g
s
y
s
te
m
h
as
b
ee
n
d
o
n
e
to
p
r
o
v
id
e
s
ev
er
al
f
ea
t
u
r
es
s
u
c
h
a
s
te
m
p
er
at
u
r
e,
p
H,
d
is
s
o
lv
ed
o
x
y
g
e
n
,
to
tal
d
is
s
o
lv
ed
s
o
lid
,
an
d
e
n
er
g
y
u
s
a
g
e
o
f
t
h
e
w
ater
p
u
m
p
.
E
r
r
atic
w
ea
t
h
er
p
atter
n
s
ca
u
s
e
p
o
o
r
w
ater
q
u
alit
y
f
o
r
f
is
h
f
a
r
m
in
g
,
w
h
ic
h
m
a
k
es
f
is
h
s
u
s
c
ep
tib
le
t
o
d
is
ea
s
e
an
d
i
f
it
co
n
t
in
u
es
will
r
esu
l
t
in
m
as
s
f
is
h
m
o
r
tal
i
t
y
.
B
ased
o
n
th
e
e
x
is
tin
g
d
es
cr
ip
tio
n
,
it
is
v
er
y
i
m
p
o
r
tan
t
to
p
a
y
atte
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ater
q
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o
f
aq
u
ac
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lt
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r
e
p
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s
,
esp
ec
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y
te
m
p
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e
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d
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s
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r
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I
n
th
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a
r
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I
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T
b
ased
m
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ito
r
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g
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d
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g
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ter
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et
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ased
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en
s
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r
s
wh
ich
w
il
l
b
e
test
ed
an
d
im
p
l
e
m
en
ted
in
ca
tf
i
s
h
f
ar
m
i
n
g
p
o
n
d
s
.
T
h
is
m
o
n
ito
r
in
g
s
y
s
te
m
u
s
es
No
d
eM
C
U
E
SP
8
2
6
6
as
a
m
icr
o
co
n
tr
o
ller
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d
A
d
af
r
u
it.io
as
an
o
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lin
e
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ter
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ac
e.
B
y
ap
p
l
y
i
n
g
I
o
T
tech
n
o
lo
g
y
w
i
th
an
in
ter
n
et
n
et
w
o
r
k
,
th
is
u
p
-
to
-
d
ate
tec
h
n
o
lo
g
y
is
ab
le
to
s
en
d
d
ata
an
d
o
f
f
er
s
p
ee
d
an
d
a
v
ast
d
is
ta
n
ce
[
3
0
]
.
T
h
is
r
esear
ch
d
ev
elo
p
s
I
o
T
tech
n
o
lo
g
y
f
o
r
s
en
d
i
n
g
p
ar
am
eter
d
ata
f
r
o
m
d
is
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lv
e
d
o
x
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e
n
le
v
el
a
n
d
te
m
p
er
atu
r
e
d
ir
ec
tly
to
a
w
eb
s
er
v
er
.
T
h
en
,
t
h
e
s
to
r
ed
d
ata
f
o
r
2
4
h
o
u
r
s
o
n
th
e
w
eb
s
er
v
er
ca
n
b
e
p
r
o
ce
s
s
ed
f
o
r
f
u
r
th
er
id
en
ti
f
i
ca
tio
n
all
th
e
ti
m
e.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
R
ec
o
n
f
i
g
u
r
ab
le
&
E
m
b
ed
d
ed
Sy
s
t
I
SS
N:
2089
-
4864
Desig
n
o
f I
o
T
-
b
a
s
ed
mo
n
ito
r
i
n
g
s
ystem
fo
r
temp
era
tu
r
e
a
n
d
d
is
s
o
lved
o
xy
g
en
leve
ls
… (
N
u
r
ma
S
a
r
i
)
689
2.
RE
S
E
ARCH
M
E
T
H
O
D
2
.
1
.
M
a
t
er
ia
l
T
h
e
m
ater
ial
s
u
s
ed
ar
e
th
e
s
e
n
s
o
r
m
o
d
u
le
s
w
h
ic
h
ar
e
DS1
8
B
2
0
tem
p
er
atu
r
e
s
e
n
s
o
r
an
d
SEN0
2
3
7
g
r
av
it
y
a
n
alo
g
d
is
s
o
l
v
ed
o
x
y
g
en
s
e
n
s
o
r
.
Ne
x
t
i
s
th
e
m
icr
o
co
n
tr
o
ller
k
it
th
a
t
co
n
s
is
t
s
o
f
No
d
eM
C
U
E
SP
8
2
6
6
,
20
×
4
-
ch
ar
ac
ter
liq
u
id
-
cr
y
s
tal
d
is
p
la
y
(
L
C
D
)
w
i
th
i
n
ter
-
i
n
te
g
r
ated
cir
cu
it
(
I
2
C
)
an
d
s
ec
u
r
e
d
ig
ital
(
SD
)
ca
r
d
m
o
d
u
le
.
I
t
is
also
s
u
p
p
o
r
ted
b
y
12
V
2
A
ad
ap
ter
,
s
tep
d
o
w
n
DC
to
D
C
co
n
v
er
ter
,
ti
n
,
elec
tr
o
n
ic
co
m
p
o
n
en
ts
,
co
n
n
ec
ti
n
g
ca
b
les
,
an
d
co
n
tr
o
l
p
an
el
b
o
x
.
2
.
2
.
M
et
ho
d
2
.
2
.
1.
H
a
rd
w
a
re
T
h
e
p
r
o
p
o
s
ed
o
f
t
h
e
No
d
eM
C
U
E
SP
8
2
6
6
-
b
ased
I
o
T
m
o
n
ito
r
i
n
g
s
y
s
te
m
f
o
r
te
m
p
er
atu
r
e
an
d
d
is
s
o
lv
ed
o
x
y
g
e
n
co
n
s
is
t
s
o
f
s
ev
er
al
s
tag
es
s
tar
ti
n
g
w
i
th
p
r
ep
ar
in
g
th
e
to
o
ls
an
d
m
ate
r
ials
n
ee
d
ed
in
th
is
r
esear
ch
(
Fig
u
r
e
1
)
.
I
t
p
r
o
ce
e
d
s
w
it
h
ass
e
m
b
li
n
g
th
e
h
ar
d
w
ar
e,
n
a
m
el
y
i
n
teg
r
ati
n
g
th
e
N
o
d
eM
C
U
E
SP
8
2
6
6
w
it
h
th
e
s
e
n
s
o
r
,
an
d
a
s
s
e
m
b
li
n
g
a
r
e
m
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te
m
o
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ito
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in
g
s
y
s
te
m
f
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r
te
m
p
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at
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e
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d
d
i
s
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lv
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x
y
g
en
b
ased
o
n
th
e
No
d
eM
C
U
E
SP
8
2
6
6
.
Fu
r
t
h
er
m
o
r
e,
th
e
m
a
n
u
f
ac
t
u
r
e
o
f
s
o
f
t
w
ar
e
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n
cl
u
d
es
th
e
m
an
u
f
ac
t
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o
f
m
icr
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co
n
tr
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ller
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o
f
t
w
ar
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m
an
u
f
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i
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ter
f
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T
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o
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t
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Fo
llo
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y
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eter
m
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n
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t
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s
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ctio
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s
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s
tr
u
m
e
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ts
,
test
i
n
g
t
h
e
s
y
s
te
m
as
a
w
h
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le
an
d
f
in
a
ll
y
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ata
co
llectio
n
.
T
h
e
d
etails
o
f
th
e
p
r
o
p
o
s
ed
s
y
s
te
m
ca
n
b
e
s
ee
n
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r
l
y
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n
Fi
g
u
r
e
1
(
a
)
.
Me
a
n
w
h
ile,
Fi
g
u
r
e
1
(
b
)
s
h
o
w
s
la
y
o
u
t
o
f
t
h
e
cir
c
u
it
d
es
ig
n
o
f
r
e
m
o
te
m
o
n
ito
r
in
g
o
f
te
m
p
er
at
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r
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a
n
d
d
is
s
o
l
v
ed
o
x
y
g
e
n
le
v
els
b
ased
o
n
No
d
e
MCU
E
SP
8
2
6
6
.
I
t
is
in
clu
d
ed
SEN0
2
3
7
an
alo
g
d
is
s
o
lv
ed
o
x
y
g
e
n
s
e
n
s
o
r
,
DS1
8
B
2
0
s
en
s
o
r
,
SD
C
ar
d
m
o
d
u
le
,
an
d
2
0
×
4
ch
ar
ac
ter
s
I
2
C
L
C
D
m
o
d
u
le
ar
e
in
te
g
r
ate
d
in
to
th
e
No
d
eM
C
U
E
SP
8
2
6
6
.
(
a)
(
b
)
Fig
u
r
e
1
.
P
r
o
p
o
s
ed
s
y
s
te
m
of
(
a)
b
lo
ck
d
iag
r
a
m
an
d
(
b
)
cir
cu
it d
esig
n
W
a
t
e
r
T
e
mp
e
r
a
t
u
r
e
D
i
sso
l
v
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d
O
x
y
g
e
n
D
i
sso
l
v
e
d
O
x
y
g
e
n
S
e
n
so
r
AD
C
S
e
n
so
r
D
S
1
8
B
2
0
W
i
F
i
N
o
d
e
M
C
U
ESP
8
2
6
6
L
C
D
I
2
C
2
0
×
4
A
d
a
f
r
u
i
t
.
i
o
P
C
/
H
a
n
d
p
h
o
n
e
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
9
-
4864
I
n
t J
R
ec
o
n
f
i
g
u
r
ab
le
&
E
m
b
ed
d
ed
Sy
s
t
,
Vo
l.
13
,
No
.
3
,
No
v
e
m
b
er
20
24
:
687
-
6
98
690
2
.
2
.
2.
So
f
t
w
a
re
Fig
u
r
e
2
s
h
o
w
s
th
e
f
u
n
ctio
n
o
f
No
d
eM
C
U
E
SP
8
2
6
6
f
o
r
b
o
th
w
it
h
s
en
s
o
r
s
an
d
L
C
D
a
n
d
also
w
it
h
I
o
T
.
T
h
e
s
o
f
t
w
ar
e
o
n
No
d
eM
C
U
E
SP
8
2
6
6
is
m
ad
e
u
s
i
n
g
t
h
e
A
r
d
u
in
o
i
n
teg
r
ated
d
ev
elo
p
m
e
n
t
e
n
v
ir
o
n
m
e
n
t
(
I
DE
)
s
o
f
t
w
ar
e.
T
h
e
s
o
f
t
w
ar
e
in
ter
f
ac
e
to
L
C
D
u
s
i
n
g
Ar
d
u
in
o
I
DE
s
o
f
t
w
ar
e
th
at
co
n
n
ec
t
in
g
b
et
w
ee
n
No
d
eM
C
U
E
SP
8
2
6
6
an
d
s
en
s
o
r
s
(
DS1
8
B
2
0
d
an
SEN0
2
3
7
an
alo
g
d
is
s
o
lv
ed
o
x
y
g
en
s
en
s
o
r
)
.
T
h
e
s
tag
e
s
in
cl
u
d
e
L
C
D
p
in
co
n
f
ig
u
r
atio
n
,
lib
r
ar
y
i
n
p
u
t,
an
d
g
iv
i
n
g
c
o
m
m
a
n
d
s
to
r
etr
iev
e
d
ata
f
r
o
m
th
e
o
u
tp
u
t
o
f
t
h
e
m
ea
s
u
r
in
g
in
s
tr
u
m
e
n
t c
ir
c
u
i
t.
T
h
e
f
lo
w
ch
ar
t o
f
t
h
e
p
r
o
g
r
a
m
m
e
i
n
ter
f
ac
e
to
d
is
p
la
y
ch
ar
ac
ter
s
o
n
t
h
e
L
C
D
ca
n
b
e
s
ee
n
in
F
ig
u
r
e
2
(
a
)
.
C
alib
r
atio
n
wa
s
ac
co
m
p
lis
h
ed
b
y
co
m
p
ar
in
g
t
h
e
m
ea
s
u
r
ed
v
alu
e
o
n
t
h
e
s
e
n
s
o
r
w
it
h
t
h
e
m
ea
s
u
r
ed
v
alu
e
o
n
a
s
ta
n
d
ar
d
m
ea
s
u
r
i
n
g
i
n
s
tr
u
m
e
n
t.
Fo
r
th
e
DS1
8
B
2
0
s
en
s
o
r
,
a
d
ig
ital
th
er
m
o
m
eter
is
u
s
ed
as
a
co
m
p
ar
is
o
n
.
T
h
e
m
ea
s
u
r
e
m
e
n
t
r
an
g
e
u
s
ed
is
1
0
to
5
0
℃.
Me
an
w
h
ile,
f
o
r
th
e
SEN
0
2
3
7
g
r
ativ
y
a
n
a
lo
g
d
is
s
o
lv
ed
o
x
y
g
en
s
e
n
s
o
r
,
a
d
is
s
o
lv
ed
o
x
y
g
e
n
m
eter
i
s
u
s
ed
a
s
a
co
m
p
ar
is
o
n
.
Me
as
u
r
e
m
e
n
t
s
w
er
e
m
ad
e
u
s
in
g
ze
r
o
d
is
s
o
lv
ed
o
x
y
g
e
n
p
o
w
d
e
r
w
h
ic
h
w
a
s
ad
d
ed
litt
le
b
y
li
ttle
u
n
ti
l
a
m
ea
s
u
r
ed
d
is
s
o
l
v
e
d
o
x
y
g
en
v
al
u
e
o
f
0
m
g
/
L
w
a
s
o
b
tain
ed
.
Fig
u
r
e
2
(
b
)
p
r
esen
t
s
co
n
n
ec
ti
o
n
o
f
No
d
eM
C
U
E
SP
8
2
6
6
w
it
h
I
o
T
.
T
h
e
s
y
s
te
m
d
e
v
elo
p
ed
b
y
th
e
A
r
d
u
i
n
o
I
DE
s
o
f
t
w
ar
e
an
d
t
h
e
I
o
T
in
ter
f
ac
e
u
s
ed
A
d
af
r
u
it.io
.
I
n
d
etails,
t
o
co
n
n
ec
t
No
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[
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in
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