In
te
r
n
ation
a
l Jou
rn
al
o
f Po
we
r
Elec
tron
ic
s an
d
D
r
ive S
y
stem
(IJ
PED
S
)
V
o
l.
10, N
o.
2, June
2
01
9, pp.
753~
7
6
7
IS
S
N
: 2088-
86
94,
D
O
I
:
10.11
59
1
/ij
ped
s
.
v10
.
i
2.pp
7
53-
76
7
753
Jou
rn
a
l
h
o
me
pa
ge
:
ht
tp:
//i
a
e
score
.
com
/
j
o
u
r
na
l
s
/
i
n
d
e
x
.
p
hp/IJ
PED
S
Development of an ine
x
pensiv
e da
ta logger fo
r solar water
heating system regul
ators
Ait
A
h
med W
a
ssi
m
a
,
Ag
gou
r Mo
ha
mmed, Ouha
mmou
Ba
dr
Dep
a
rtm
e
nt of
Phys
ics
,
Ib
n
T
o
f
ail
Univ
ers
i
ty, M
o
ro
cco
Art
i
cl
e In
fo
ABSTRACT
A
r
tic
le hist
o
r
y
:
R
e
c
e
i
v
e
d
Oct
1
6
,
2
018
Re
vise
d N
ov
1
9
,
201
8
Ac
ce
p
t
ed
M
ar 1
, 2
0
19
Each
s
o
l
ar
t
herm
al
p
lant
can
p
r
o
vi
de
d
if
f
e
rent
p
aram
et
ers
t
o
b
e
t
reated
a
nd
eval
uat
e
d
,
m
o
s
tly
t
em
perat
u
re
m
easu
r
emen
ts
,
p
r
essu
re
s
p
ecif
i
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io
ns
,
heat
tran
s
f
er
v
al
ues
.
T
his
d
a
ta
c
ol
lect
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can
b
e
q
u
it
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s
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v
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t
o
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n
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the
i
m
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nt
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u
m
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e
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of
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enso
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a
n
d
d
at
a
lo
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eir
specifi
c
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t
i
on
s.
H
ence
to
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ssure
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l
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lity
i
n
the
data
c
oll
ect
i
o
n
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t
a
l
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o
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t
,
m
a
ny
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ardware
and
s
o
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t
w
a
re
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pe
cifi
catio
n
s
can
b
e
ad
opt
ed.
Here
we
b
uil
t
a
n
ine
x
pe
n
s
iv
e
da
ta
l
og
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r
b
a
se
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on
th
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Ard
u
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o
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o
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r
d
a
n
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o
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ect
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nd
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ore
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comin
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ata
f
r
om
R
es
o
l
D
elt
a
S
o
l
reg
u
lators
i
n
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egrat
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i
n
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ffe
r
e
n
t
sola
r
wa
te
r
h
e
a
t
i
n
g
sys
t
e
m
s.
T
he
o
bje
c
t
iv
e
o
f
t
hi
s
s
t
ud
y
i
s
t
o
allow
m
a
ssive
sy
nch
r
oni
zed m
eas
urem
ent
s
wit
h hig
h
r
es
o
l
utio
n
to
b
e s
t
ored
i
n
t
o
an
S
D card
th
rou
gh
t
h
e
Ardu
in
o
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t
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o
rm.
T
h
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meas
uremen
ts
a
re
g
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y
m
u
l
tipl
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sen
s
o
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s
(t
em
perat
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at
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co
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ted
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om
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o
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o
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rci
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aspec
t
s
o
f
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h
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b
uil
t
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l
o
ggi
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dev
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ce.
A
f
t
er
a
m
ont
h
of
d
a
i
l
y
m
eas
urem
ent
s
,
the
d
a
t
a
l
o
g
g
e
r
s
h
owe
d
a
n
ou
tstan
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in
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pe
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orm
a
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ce
wi
th
a
n
ext
r
em
e
lo
w
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t
c
o
m
pared
to
i
n
d
u
st
r
i
al
d
a
t
al
og
g
e
r
.
K
eyw
ord
s
:
A
r
dui
n
o
D
a
ta
l
o
ggi
ng
Mi
cro
S
D
Solar
wat
e
r system
Tem
p
era
t
ure
sens
ors
VBu
s
Co
pyri
gh
t © 2
019 In
stit
u
t
e
of Advanced
En
gi
neeri
n
g
an
d
S
c
ien
ce.
All
rights
res
e
rv
ed.
Corres
pon
d
i
n
g
Au
th
or:
A
it A
h
m
e
d Wa
ssima
Lab
o
rato
ry
o
f
Renew
a
bl
e
En
erg
i
es
a
nd
E
n
v
i
r
on
me
n
t
,
D
e
pa
rtment o
f
p
hysic
s,
Fa
cult
y
o
f
s
c
i
e
n
ce
s,
I
bn Tofa
il U
n
ive
r
sity
K
eni
t
ra,
Morocc
o.
Em
ail:
aita
hme
d
w
@
gm
ail
.
co
m
1.
I
N
TR
OD
U
C
TI
O
N
Re
ne
w
a
b
l
e
en
ergy
t
oda
y
is
by
far
t
h
e
first
stu
d
i
ed,
eva
l
u
a
te
d
a
nd
promote
d
s
c
i
ence
a
ll
a
r
ou
n
d
t
h
e
w
o
rld
due
t
o
ma
ny
fac
t
ors,
i
n
c
lu
d
i
ng
su
st
a
i
n
a
bl
e
de
ve
l
opm
e
n
t
,
t
he
d
ec
rea
s
e
of
f
ossil
e
n
e
r
gy
re
se
rves
b
e
c
a
u
se
of
t
he
e
xce
ssi
ve
i
nd
us
tria
l
a
nd
dome
s
tic
u
se
f
or
p
ow
er
e
xtrac
t
i
o
n
,
as
w
e
l
l
as
t
he
i
n
c
r
ease
in
t
he
e
nerg
y
dem
a
nd
[1].
S
olar
e
ner
gy,
w
i
nd,
h
ydra
u
lic
a
nd
b
i
om
ass
e
n
ergy
so
urce
s
are
c
o
min
g
h
a
n
d
i
n
h
an
d
wi
t
h
f
uel
t
o
overc
ome
t
h
e
chal
le
ng
e
of
g
oo
d
func
t
i
on
t
hro
u
g
h
a
l
o
n
g
t
im
e
[2]
.
N
e
ve
rthe
less,
s
ol
a
r
e
nerg
y
i
s
c
o
n
s
i
de
r
e
d
the
m
o
s
t
e
ffi
cien
t
in
t
er
ms
o
f
c
l
e
a
n
e
xp
loi
t
a
t
ion
an
d
c
o
n
v
ersi
o
n
p
r
o
c
e
sse
s,
i
n
c
lud
i
ng
pho
to
vol
t
a
i
c
,
ph
o
t
oc
hem
i
c
a
l
,
and
p
h
o
t
o
t
h
e
r
m
a
l
c
o
n
v
ersi
o
n
,
con
v
ert
i
ng
s
un
ra
d
i
a
tio
n
to
e
lectr
i
ci
t
y
,
ch
em
ical
a
n
d
t
he
rm
al
ene
r
g
y
r
espec
t
i
v
e
l
y.
N
ev
er
the
l
e
s
s,
t
he
e
n
e
rgy
c
o
n
v
e
r
s
i
on
e
f
fic
i
en
c
y
r
e
m
a
i
n
s
l
o
w
i
n
p
hot
ovol
ta
i
c
a
n
d
che
m
ica
l
a
pp
l
i
cati
o
ns com
par
e
d to t
he
t
herm
al
c
on
versi
o
n a
ppr
oa
ch[1,
2].
The
t
h
erm
a
l
con
v
e
r
si
on
proc
ess
is
c
o
n
s
i
der
e
d
t
h
e
tra
d
i
t
i
o
nal
c
o
nv
e
r
si
on
me
t
h
od
t
ra
nsfo
rmi
n
g
sol
a
r
radia
t
i
o
n
in
to
h
eat
;
th
is
t
ype
o
f
e
n
e
r
g
y
e
x
t
rac
tio
n
proces
s
is
q
u
it
e
appl
i
cabl
e
o
n
Moro
c
c
a
n
s
o
i
l
.
A
s
a
n
e
x
a
m
p
l
e
,
t
h
e
c
o
n
c
e
n
t
r
a
t
e
d
s
o
l
a
r
p
o
w
e
r
p
l
a
n
t
b
u
i
l
t
i
n
O
u
a
r
z
a
z
a
t
,
t
hi
s
kind
o
f
re
n
e
wabl
e
e
n
e
r
g
y
ex
t
r
act
i
o
n
syste
m
s
he
lps
r
e
duce
the
ver
y
h
i
g
h
ener
gy
depe
n
d
enc
y
o
f
M
o
rocc
o
(
de
pen
d
s
ma
in
ly
on
im
p
o
rte
d
s
our
ces
(96%)
)
[
3]
a
n
d
a
l
s
o
pro
hi
bit
furt
her
p
o
l
l
ut
i
o
n
prob
lem
s
i
n
the
f
u
t
u
r
e
.
The
Inte
gra
tio
n of em
b
edde
d sy
s
t
em
s
in
di
ffe
re
nt
e
l
e
c
t
ric
pl
a
n
t
s
[
4],
espec
i
al
ly
m
e
g
a
e
n
erg
y
f
urnac
e
s
and
heating
sys
t
em
s
[5],
i
s
crucial
in
o
r
d
er
t
o
rea
l
i
z
e
differ
e
n
t
tas
k
s
w
i
t
h
o
u
t
i
nvo
lv
i
n
g
a
n
y
h
u
ma
n
c
ontro
l
[6]
.
Mo
n
itor
i
n
g
v
a
r
ia
ble
s
can
p
rov
i
de
e
arly
w
a
r
n
i
n
gs
o
f
m
a
l
f
unc
t
i
on,
t
he
refore
m
in
imiz
in
g
re
le
va
nt
c
os
ts
a
n
d
fi
na
ll
y
he
l
p
s
ob
serv
in
g
th
eir
l
o
ng-
term
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SSN: 2088-
8694
I
nt
J
P
ow
Elec
& Dr
i
S
y
st, Vol. 10,
N
o.
2, June
2
019
: 75
3
–
7
67
75
4
beha
v
i
or,
e
s
pe
cia
l
l
y
t
e
m
pe
ra
ture
s
pe
ci
fica
t
i
on
si
nce
t
h
e
y
a
r
e
c
onsi
d
ere
d
t
he
m
ain
s
t
ud
ie
d
para
me
te
rs
t
o
assure
b
ett
e
r
efficienc
y
o
f
sol
a
r
ther
mal
s
y
stem
s
[
7
].
T
hese
m
o
ni
tor
i
ng
a
p
p
lica
tio
ns
a
r
e
m
ainl
y
ba
se
d
o
n
mi
cro
c
on
t
r
oll
e
rs
a
n
d
el
e
c
t
r
o
n
i
c
ci
rcui
t
s
.
M
i
c
r
o
c
on
t
r
oll
e
r
bas
e
d
s
y
s
t
e
m
s
a
r
e
w
i
l
d
l
y
u
s
e
d
f
o
r
g
e
n
e
r
a
l
p
h
y
s
i
c
a
l
para
me
ters
m
oni
tor
i
ng,
i
n
pa
rtic
ular
s
ol
a
r
e
nerg
y
a
p
p
l
ic
a
t
i
o
ns,
a
ss
uri
ng
a
si
gn
i
f
ica
n
t
i
m
provem
e
n
t
i
n
th
e
ene
r
g
y
e
ff
ic
ien
c
y
a
n
d
l
e
ss
e
x
pen
s
es
[
8].
H
o
w
e
ver,
e
ve
ry
p
ar
t
i
c
u
la
r
re
se
arc
h
w
ork
ha
s
it
s
ow
n
spec
ific
atio
ns
st
a
r
t
i
n
g
from
the
ty
pe
o
f
t
h
e
m
i
croc
on
trol
ler
use
d
i
n
the
ap
p
l
i
cat
i
on
a
nd
t
h
e
a
ppr
opria
te
e
l
e
ctro
nic
c
o
mp
on
en
ts.
M
.
F
u
e
nt
e
s
a
nd
a
l
l
[
9
]
d
e
v
el
op
ed
a
d
at
al
og
g
e
r
f
o
r
a
p
h
o
to
vo
l
t
ai
c
sys
t
em
acc
ordi
ng
to
t
h
e
st
a
ndard
o
f
I
n
t
e
rnat
io
na
l
E
l
e
c
tro
t
ec
hn
ica
l
C
om
mission
I
EC
6
17
2
4
:1
99
8,
u
s
i
ng
a
n
A
r
du
i
n
o
U
n
o
bo
a
r
d,
b
y
impro
v
i
n
g
its
A
D
C
from
na
ti
ve
1
0-b
it
res
o
l
u
t
i
on
t
o
a
n
up
g
r
a
d
ed
ver
s
io
n
of
18-b
i
t
re
sol
u
t
i
on.
W
h
ile
G
ad
a
n
d
all
[10]
d
eve
l
o
p
e
d
a
d
a
t
a
ac
q
u
isi
t
i
o
n
s
ys
t
e
m
for
a
s
o
lar
s
y
s
t
e
m
m
on
itor
i
n
g
,
u
s
in
g
bo
th
a
P
IC
m
icr
o
con
t
ro
ll
e
r
and
a
n
A
T
M
E
L
m
i
c
roco
n
t
rol
l
er
a
ssem
b
le
d
on
a
n
A
r
d
u
i
n
o
Me
ga
b
oar
d
t
o
assur
e
d
ata
stora
g
e.
T
hus,
u
s
i
ng
em
bedde
d
tec
h
no
l
o
g
y
i
n so
lar
therm
a
l pla
n
t
can
b
e
bot
h
effic
i
e
n
t
an
d
cost
e
ffec
t
i
ve
[
7].
A
qu
it
e
s
i
m
ilar
proje
c
t
is
b
u
i
lt on th
e p
h
y
s
i
c
s
depa
rtme
nt of f
a
c
ul
t
y
o
f
s
c
i
e
n
c
es
–
K
en
it
ra
,
i
n
o
rd
er t
o
u
s
e
t
h
e
h
e
at
e
x
t
ra
c
t
ed
f
ro
m
t
h
e
so
l
a
r
co
ll
ect
o
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eat
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com
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a
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ys
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t
r
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d
from
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efo
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r
e
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Th
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or Res
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sys
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s w
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o
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2.
MATE
R
I
A
L
AND
M
E
T
HO
DS
A
s
o
l
a
r
c
o
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e
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g
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Fac
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[
Fi
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1
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.
Sy
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2.1.
So
la
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F
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S
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75
5
2.1.
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The
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2.
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r
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c
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at
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a
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oad
s
i
n
pr
ess
u
rized
s
t
o
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s
y
st
em
s.
T
hi
s
e
n
c
l
o
s
e
d
a
rea
–
i
n
s
i
de
t
he
i
nner
tu
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–
is
v
a
c
u
ume
d
a
nd
injec
t
e
d
w
ith
a
h
ea
t
tra
n
sfer
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l
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i
d
.
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surfac
e
c
o
at
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ng
m
a
ter
i
a
l
o
f
t
h
e
i
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ner
tu
bes
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t
e
r
surfa
ce
is
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n
Al-Cu-
Ss
s
elect
i
v
e,
it
cha
n
ge
s
t
h
e
so
lar
ra
di
a
t
io
ns
i
n
t
o
hea
t
,
t
h
e
abs
o
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s
o
l
a
r
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o
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t
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w
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e
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,
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h
e
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p
,
cha
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to
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as,
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n
d
ris
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s
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c
hi
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o
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s
ha
pe
d
co
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r
i
n
the
usa
g
e
w
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t
e
r
ta
nk,
t
he
h
e
a
t
t
ra
nsfe
r
flu
i
d
pr
im
ar
i
l
y
i
n
t
he
f
orm
of
gas
co
n
d
ense
s
on
the
i
n
ne
r
sur
f
ac
e
of
t
he
c
o
nde
nse
r
d
ue
t
o
the
co
n
t
ac
t
w
i
th
t
he
c
ol
d
w
a
te
r
alre
ady
i
n
s
i
de
t
he
tan
k
.
H
e
nc
e
the
co
nde
ns
in
g
c
h
e
m
ic
a
l
r
et
urn
s
i
n
its
liq
u
i
d
f
o
rm
bac
k
t
o
th
e
su
n
ex
p
o
se
d
base
o
f
t
h
e
tu
b
e
.
Thi
s
circ
u
l
a
t
i
on a
s
p
ect i
s va
l
i
d
a
s
l
on
g
as the
s
y
s
t
e
m
is
h
e
a
t
ed b
y
su
n
r
a
d
i
a
t
i
o
n
s
.
In com
par
i
s
on w
i
t
h
vacu
u
m
t
ube
s
there
is
n
o
w
a
t
e
r
circula
tio
n
i
n
si
de
t
h
e
t
ube
,
t
hus
t
he
c
las
s
if
ica
t
i
o
n
pr
ob
le
m
due
t
o
w
a
t
e
r
is
p
re
ve
nte
d
:
n
o
w
a
ter
c
i
r
c
ula
t
i
o
n
m
eans
no
risk of
fre
e
z
i
n
g
o
r bre
a
ki
ng t
h
e
t
u
b
e in
col
d
t
e
mp
era
t
u
r
es.
b.
T
h
erm
o
sip
h
o
n
stor
age t
a
nk
The
hea
t
e
r
i
s
pr
o
v
i
d
e
d
w
i
t
h
a
1
6
7
L
iter
ca
paci
t
y
t
a
nk.
T
he
i
nne
r
ta
nk
i
s
ma
de
o
f
2
m
m
E
nam
e
le
d
shee
t,
s
o
tha
t
t
he
t
a
n
k
resis
t
s
t
o
c
orros
i
on
.
This
s
ys
tem
pr
o
v
i
d
e
s
a
qu
it
e
di
ff
e
r
e
n
t
t
e
chno
l
o
g
y
i
n
wat
e
r
rese
rvoirs,
t
h
e
class
i
c
me
tho
d
s
u
s
i
ng
d
o
u
b
l
e
w
a
ll
,
se
rpe
n
t
i
n
e
o
r
hea
t
e
xc
h
a
ngers
i
nsi
d
e
t
h
e
ta
nk
are
n
o
l
on
g
e
r
app
l
icab
le.
The
r
efore,
a
s
pe
c
i
al
l
y
d
e
s
i
g
ned
sea
lin
g
ri
n
g
h
a
s
b
e
en
d
ev
e
l
o
p
e
d
t
o
r
e
s
i
st
a
gainst
p
ressure
.
The
col
d
w
ater
e
n
t
e
r
i
n
g
t
h
e
w
a
ter
t
a
nk,
i
s
he
ate
d
by
c
o
n
v
e
c
t
i
on tha
n
k
s
t
o
h
ea
te
d
t
ube
s,
t
h
u
s
b
e
c
o
me
s
re
ady
to
u
se
as
h
ot
w
ater
.
The
pressure
r
educ
er
i
s
p
l
ac
e
d
i
n
t
h
e
in
le
t
of
t
h
e
sys
t
em
,
wor
k
i
n
g
a
t
a
m
aximum
4
b
a
r
s
t
o
pro
v
i
d
e
a
q
u
i
t
e
u
se
ful
w
a
t
e
r
use,
a
nd
h
e
l
p
pro
t
ec
ti
ng
i
t
from
p
ress
ure
fluctuations
.
Th
e
c
ont
rol
v
a
lve
(tem
pera
ture
a
nd pr
ess
u
re)
help
s pre
v
en
t
i
n
g
t
he s
ystem
s
o
v
e
r
h
ea
t
in
s
um
m
e
r.
c.
Fr
a
m
e su
ppo
rt
:
The
new
fr
am
e
ha
s
m
o
dern
a
nd
e
r
go
n
o
mic
des
i
g
n
,
sa
fe
a
gai
n
s
t
e
nv
iro
n
m
ental
e
f
fe
cts
(w
ind
;
r
ai
n,
snow
…),
it is e
asy t
o
assem
b
le
a
nd c
o
mpa
t
i
b
le
w
ith an
y
ki
n
d
o
f
g
round or
platfor
m
.
I
t
c
a
n
be i
n
sta
l
le
d in
t
he
garde
n
,
t
op
flo
o
rs of
t
h
e a
p
art
m
ents an
d
e
ve
n
fa
rms.
2.1.
2.S
t
orage
t
an
k
F
o
r
h
o
t
w
a
t
e
r
s
t
o
r
i
n
g
w
e
u
s
e
d
E
L
B
I
’
S
h
i
g
h
e
f
f
i
c
i
e
n
c
y
h
o
t
w
a
t
e
r
cyl
i
nde
rs,
offerin
g
a
r
em
ar
kable
stor
age ca
paci
t
y
, and
a
sa
t
i
s
f
y
i
n
g
in
h
e
a
t
in
g t
i
me
p
er
form
anc
e
dur
i
n
g the
p
i
ck h
ours. The
ELBI
BS
V
cyl
i
n
d
er
use
d
in
th
is st
u
dy i
s
a
195 L
ta
nk,
easy
to
i
n
s
ta
ll i
n
t
he
s
o
l
a
r he
ati
ng sy
st
e
m
.
The
hea
t
e
xch
a
nge
r
i
s
a
c
o
i
l
e
d
p
i
pe
w
i
t
h
h
e
ated
w
a
t
er
p
a
s
si
ng
t
h
r
o
ugh
.
Th
e
B
S
V
se
ri
es
i
s
vit
r
e
o
u
s
ena
m
e
l:
t
h
e
i
n
ner
ena
m
e
l
c
o
a
ti
n
g
h
el
ps
p
rotec
t
in
g
t
h
e
c
y
li
nder
from
c
or
rosio
n
t
ha
nks
t
o
t
h
e
M
a
g
n
e
si
u
m
a
n
od
e
a
n
d
Te
st
e
r
,
si
n
c
e
t
h
e
g
a
lv
an
i
c
c
o
rrosio
n
at
t
ack
t
h
e
s
ac
ri
f
i
c
i
a
l
a
re
a
a
n
d
in
st
ead
o
f
co
rro
di
ng
t
h
e
l
ess
ano
d
i
c
me
t
a
ls
i
n the
cy
l
i
n
d
e
r
di
s
p
l
a
y
ed
on
Fig
u
re
4.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
S
S
N: 2
0
8
8
-
86
94
I
nt
J
P
o
w
E
l
e
c
&
D
r
i
S
yst
,
Vol.
10,
N
o.
2
,
Ju
ne
2
0
19
:
7
5
3
–
7
67
75
6
F
i
gur
e
4.
ELB
I
stor
age
ta
nk
[
13]
W
a
te
r pum
p
The
Cir
c
ula
t
i
o
n
pum
p
c
o
nne
cti
n
g
th
e
c
o
lle
c
tin
g
sys
t
em
a
nd
t
he
s
t
o
r
a
g
e
t
a
n
k
i
s
a
2
2
0
V
V
e
r
c
o
S
h
i
e
ldi
n
g
C
i
rcu
l
ati
o
n
pu
mp
,
co
nt
r
o
l
l
ed
by
a
d
i
ffe
rent
i
a
l
c
o
nt
ro
ll
e
r
p
r
o
to
t
ype
t
o
he
lp
c
ircula
t
e
t
he
h
e
a
te
d
w
a
ter
t
o
t
he
E
LBI
st
or
i
n
g
t
a
n
k
.
2.
1.
3.
R
e
sol
D
e
l
t
aS
o
l
R
e
g
u
l
at
ors
R
e
s
o
l
pr
o
v
i
d
es
e
ner
gy
c
o
mm
un
i
t
y
w
i
t
h
m
any
r
e
g
u
l
at
i
o
n
pr
o
t
o
t
ypes
i
n
t
h
i
s
w
or
k
w
e
w
or
ked
w
i
t
h
thr
e
e
di
ff
er
e
n
t
r
e
gu
lat
o
r
s
c
o
nne
cte
d
t
o
tw
o
dif
f
er
e
n
t
s
o
l
a
r
w
a
t
er
h
e
a
t
i
ng
syste
m
s
to
h
e
l
p
ass
u
re
t
he
u
ltim
at
e
f
u
n
c
tio
n
of
t
h
e
d
a
t
al
o
gger
de
ve
lo
ped.
T
he
r
egu
l
a
t
or
s
a
r
e
t
h
e
R
e
so
l
Delt
a
S
o
l
C
/
4
,
De
lt
aSo
l
B
S
a
n
d
Del
t
aSol
E.
a.
Reso
l D
e
ltaS
o
l
C/
4 regu
l
a
t
o
r
Th
e
R
e
s
ol
D
e
l
t
a
S
ol
C
/
4
i
s
a
reg
u
l
a
t
ion
and
con
t
r
o
l
uni
t
us
ed
f
or
s
ys
tem
m
oni
tori
n
g
d
isp
l
ay,
it
c
a
n
sup
p
o
r
t
u
p
t
o
4
p
t
1
0
00
tem
p
er
atur
e
se
ns
o
r
s,
a
s
pe
ed
c
ontr
o
l
un
i
t
f
o
r
c
i
r
c
ula
t
io
n
p
u
mp
a
nd
t
w
o
elec
tr
o
va
ns,
so
lar
oper
a
t
i
n
g
hour
s
co
un
ter
a
n
d
t
h
er
m
o
sta
t
f
unc
tio
n
[
F
ig
u
r
e
5
].
F
i
gur
e
5.
Reso
l
D
e
l
ta
S
o
l
C
4
R
egu
l
a
t
or
a
n
d
c
ompo
ne
nts
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t
J
P
o
w
Elec
&
D
r
i
S
y
st
I
S
S
N
:
2088-
86
94
D
e
v
e
lo
pm
en
t of an
i
n
ex
pe
n
s
i
v
e
dat
a log
g
e
r
f
o
r so
l
a
r
w
a
ter he
a
tin
g sy
st
e
m
re
gula
t
ors
(
A
i
t
Ahm
e
d
Wa
ssi
m
a)
75
7
b.
Reso
l D
e
ltaS
o
l
BS
The
Res
ol
D
e
l
t
a
Sol
BS
c
o
n
t
rol
l
er
p
ro
v
i
des
a
qu
i
t
e
c
l
e
a
r
o
p
er
at
i
ng
c
o
n
c
ep
t
and
i
s
e
qui
pp
ed
w
i
t
h
th
e
il
l
u
m
i
n
a
te
d
co
m
b
in
e
d
d
is
p
l
a
y
w
it
h
sy
stem
m
oni
t
o
r
i
n
g
.
F
l
a
s
hin
g
s
y
m
b
o
l
s
f
or
s
ens
o
r
s
,
pum
ps
a
n
d
v
al
ues
e
n
ab
le
a
n
i
m
m
e
diat
e
a
l
loc
a
t
i
on
of
t
em
per
a
t
u
r
e
s,
t
e
m
pe
r
a
tur
e
d
if
f
e
re
nces
a
nd
a
c
t
i
v
e
a
c
t
u
a
t
o
r
s
;
t
hi
s
mak
e
s
a
d
jus
t
in
g
an
d
moni
t
o
r
i
ng
t
h
e
solar
system
q
uic
k
a
n
d
e
asy.
c.
Reso
l D
e
ltaS
o
l
E
The
Res
ol
D
el
taS
o
l
E
is
d
e
s
igne
d
f
o
r
so
l
a
r
and
hea
tin
g
sy
st
e
m
s,
i
t
is
a
lr
e
a
dy
p
r
e-
pr
ogr
am
me
d
for
7
ba
sic
so
l
a
r
sy
s
t
e
m
s
a
n
d
u
p
t
o
30
var
i
a
t
io
ns
u
se
d
t
o
c
on
tr
o
l
l
ar
g
e
s
y
s
t
e
ms.
M
u
lti
pl
e
ad
just
a
b
l
e
f
un
cti
ons
a
nd
op
t
i
o
n
s
a
r
e
p
o
ssi
bl
e
u
s
in
g
7
r
e
lay
o
u
tp
uts,
1
3
se
nsor
i
np
u
t
s
fo
r
pt
100
0
t
e
mp
era
t
u
r
e
senso
r
s,
C
S10
so
la
r
ce
l
l
,
V40
flowm
e
te
r
and
DIN
dig
ita
l
e
n
t
r
y.
D
ue
t
o
i
t
s
in
te
ll
ige
n
t
,
e
a
s
y
c
o
n
f
i
gur
at
io
n
a
n
d
i
n
t
e
gr
ate
d
c
a
l
or
i
m
eter
,
the
c
o
n
t
ro
ller
a
l
s
o
o
ffe
r
s
the
c
o
n
t
ro
l
of
c
omp
l
ex
s
yst
e
ms
u
p
to
4
w
e
a
t
h
e
r
c
o
m
p
o
s
t
e
d
h
e
a
t
i
n
g
s
y
s
t
e
m
s
.
A
l
l
t
h
e
Res
ol
c
o
n
tr
o
l
le
r
s
a
r
e
e
qui
pp
ed
w
i
t
h
t
h
e
Re
sol
V
B
u
s
f
or
b
o
t
h
da
t
a
tr
a
n
sf
er
a
n
d
e
ner
gy
s
u
pp
l
y
t
o
e
x
t
e
r
n
al
m
odu
les.
T
he
c
onne
c
t
i
o
n
is
c
a
r
r
i
ed
o
u
t
b
y
t
h
e
b
i
as
o
f
V
B
us
m
ar
k
e
d
t
e
r
m
i
n
a
l
s
[
F
i
g
u
r
e
6
]
.
R
e
s
o
l
p
r
o
v
i
d
e
s
di
ff
er
e
n
t mod
u
l
es
t
h
a
t
c
a
n
be
c
onne
c
t
ed
t
o
t
h
e d
a
ta b
us,
f
o
r
e
x
am
pl
e
D
a
t
a
log
g
e
r
s
D
L
2/D
L
3,
w
he
r
e
t
he
da
t
a
is
bo
t
h
r
ece
i
v
e
d
a
nd
s
t
or
ed.
A
l
so,
t
h
e
K
M
1
c
o
m
m
unica
ti
on
m
odu
le.
T
he
r
e
gula
t
or
c
a
n
a
lso
be
c
o
nne
cte
d
t
he
user
’s
c
omp
u
t
er
u
si
ng
V
B
u
s
/US
B
a
nd
V
Bus
/
LAN
ada
p
t
o
rs
from
Res
o
l
.
T
h
e
s
e
fe
a
t
ur
es
a
r
e
n
o
t
i
nc
l
ude
d
i
n
the
r
e
g
u
l
at
or
’
s
s
pec
i
f
i
ca
t
i
ons
a
nd
nee
d
t
o
be
boug
h
t
s
epa
r
a
t
el
y
.
These
m
o
du
l
e
s
ca
n
be
r
ea
lly
e
x
p
e
n
s
i
v
e
,
that
he
lpe
d
i
mm
erge
t
he
n
e
e
d
t
o
de
vel
o
p
o
u
r
ow
n
low
-
cost
d
ata
l
o
gger
u
si
ng
s
i
m
pl
e
d
e
v
i
c
e
s
al
re
a
d
y
p
r
e
s
e
n
t
in
th
e
lab
.
2.
1.
4.
V
B
u
s
p
r
ot
ocol
V
B
us
p
r
o
t
o
c
o
l
is
a
h
alf-
du
ple
x
bus
s
yst
e
m
used
b
y
Res
ol
c
on
tr
o
l
ler
s
f
or
c
om
munica
ti
on
pur
p
o
se
s.
The
VB
u
s
p
h
y
sica
l in
t
e
rfa
c
e
com
e
s
i
n
t
wo fla
vor
s:
2
w
i
r
e
c
onnec
t
io
n
t
o
p
r
o
vi
de
t
he
b
u
s
s
ig
na
l
and
pa
r
t
i
a
l
p
o
w
e
r
s
upp
ly
[
F
i
g
u
r
e
6]
4
w
i
r
e
c
onnec
t
io
n
t
o
p
r
o
vi
de
s
epar
ate
w
i
r
e
p
air
s
f
or
t
he
b
us
s
i
g
n
a
l
a
n
d
p
o
w
er
s
upply
F
i
gur
e
6.
R
e
s
o
l
D
e
ltaS
o
l
C
S
/4
r
e
gula
t
or
c
on
n
e
ctio
n
boar
d
The
d
a
ta
p
r
ovi
ded
b
y
t
he
R
e
s
o
l
r
e
g
u
l
a
t
or
,
is
r
ece
ive
d
u
s
i
n
g
t
he
a
sync
hr
o
n
o
u
s
ser
i
a
l
por
t
o
f
U
se
r
s
’
c
o
mpu
t
er
s (
C
O
M
)
w
i
th
t
he
f
oll
o
w
i
ng pa
r
a
m
e
ter
s
:
9
6
0
0
b
a
u
d
r
a
t
e
,
1
s
t
ar
t
,
8
da
t
a an
d 1 st
op bi
t,
w
i
t
h n
o
p
a
r
it
y
a
nd
no
ha
n
d
s
h
ake.
T
he
V
Bu
s
is
a
s
in
gle
ma
st
e
r
s
ys
tem
since
t
h
er
e
i
s
n
o
p
o
ssi
b
ili
t
y
t
o
r
ecog
n
iz
e
or
r
e
p
air
c
o
ll
is
i
o
ns in
ca
se
t
w
o
m
od
u
l
e
s
s
end the
i
r
r
e
spec
t
i
ve
d
a
t
a
a
t
th
e
sam
e
tim
e.
T
he
m
aster
in
t
hi
s
c
a
se
i
s
t
h
e so
l
a
r
c
o
n
t
r
o
ller
.
The
V
B
u
s
u
ses
f
our
d
if
fer
e
nt
p
r
o
toc
o
l
ver
s
i
o
ns
(
V
1
.
0
,
V
2
.
0
,
V
3
.
0,
V
3
.
1)
,
e
ach
o
n
e
c
om
b
i
ne
d
w
i
t
h
a
mo
d
e
l
cl
ass
t
h
at
i
nh
erit
s
i
t
s
sp
e
c
i
f
i
c
a
tio
ns
f
ro
m
t
h
e
bu
s’s
co
m
m
on
s
t
r
u
c
t
u
r
e
(
h
e
a
der
spe
c
if
i
c
a
t
i
ons)
de
t
a
ile
d
o
n
Figu
re
7
.
Fi
g
u
re
7
.
V
B
u
s
d
a
t
a
f
r
a
me
s
p
e
c
i
f
i
c
a
t
i
o
n
s
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SSN: 2088-
8694
I
nt
J
P
ow
Elec
& Dr
i
S
y
st, Vol. 10,
N
o.
2, June
2
019
: 75
3
–
7
67
75
8
To
a
cc
ess
t
h
e
data
d
el
ive
r
ed
by
t
h
e
R
e
sol
r
e
gu
la
tors,
Res
o
l
pro
vid
e
s
di
ffe
ren
t
m
od
ul
e
s
t
o
f
a
c
i
l
i
t
a
te
data
e
x
t
rac
t
ion
,
re
a
din
g
a
nd
stor
age
:
K
M
1
com
m
un
i
c
a
t
i
o
n m
o
d
u
le
D
L
2/D
L
3
data
l
o
g
g
ers
V
B
us
/ U
S
B
conver
t
e
r
s
VBu
s
/
L
AN con
v
er
t
e
rs
The
s
e
mo
d
u
le
s
c
a
n
be
q
u
i
te
e
xpe
ns
i
v
e
s
i
n
c
e
the
V
B
us
p
ro
toc
o
l
is
s
p
ecifica
lly
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a
d
e
for
R
e
so
l
regu
la
tors
s
h
o
w
n
i
n
T
a
b
le
1
,
thu
s
n
or
ma
l
da
t
a
log
g
e
r
s
ca
n’
t
he
lp
i
n
o
u
r
case
.
I
n
th
is
p
a
p
er
w
e
pres
ent
a
n
alter
n
a
t
i
v
e
so
lut
i
o
n
:
b
u
ild
our
o
w
n
V
Bus
c
o
m
m
unica
ti
on
a
nd
da
ta
s
tor
i
n
g
d
e
v
i
ce
us
i
n
g
A
r
dui
no
boar
d
a
n
d
ID
E
sp
e
c
ifica
t
ions.
Table
1. Resol m
odules
m
a
r
k
et prices in US
$
R
e
s
o
l
co
m
p
o
n
en
ts
P
r
i
ce (
U
S
$
)
DL
2
d
a
ta
l
ogge
r
480
$
DL
3
d
a
ta
l
ogge
r
592,
86 $
KM
1 c
o
m
m
uni
ca
ti
on
m
odul
e
400
$
VB
us/
U
S
B
a
d
a
p
t
e
r
120
$
VB
us/
LA
N
a
d
a
p
t
e
r
300
$
2.2.
B
i
o
d
i
gest
in
g u
n
it
The
s
o
lar
hea
tin
g
sy
s
t
em
u
se
d
in
t
h
i
s
s
t
u
d
y
he
a
t
s
a
n
U
p
flow
A
n
a
e
ro
bic
S
l
u
dge
B
l
a
n
k
e
t
(
U
A
S
B)
bi
odi
ges
t
er
i
n
w
h
ic
h
w
e
a
dd
ed
p
a
p
er
m
il
l
efflue
nts
an
d
t
r
e
a
ted
u
s
i
ng
m
e
sop
h
i
lic
a
n
a
erob
ic
d
ig
e
s
ti
on
to
extra
c
t
m
ethan
e
gas
u
se
ful for
fur
t
he
r p
o
we
r app
l
i
c
a
t
i
on
afte
r
c
ogener
a
t
i
o
n
[
1
0
].
Wh
ile
b
u
i
l
d
ing
the
bi
o
d
i
g
es
te
r,
m
a
ny
para
me
t
e
rs
h
a
d
t
o
be
t
ake
n
i
nt
o
a
cco
unt
,
ma
i
n
ly
t
e
m
p
e
ra
t
u
re.
A
c
c
o
rdi
n
g
t
o
r
esea
rch
c
a
rrie
d
o
u
t
i
n
t
h
e
fie
l
d
of
a
nae
r
o
b
ic
d
ig
est
i
o
n
t
h
e
op
ti
mu
m
t
e
mp
erat
u
r
e
f
o
r
me
so
phi
li
c
bac
t
e
r
ia
i
s
at 3
7°
C, w
h
e
rea
s
it is 5
5°
C for
th
erm
oph
ilic
b
ac
t
e
r
ia
[
11].
To
h
ea
t
t
h
e
1.50
m
l
o
n
g
b
i
odi
ges
t
er
w
e
im
me
rsed
a
60c
m
c
o
il
exc
h
a
ng
e
r
l
i
m
i
t
e
d
by
a
n
i
n
l
e
t
a
nd
ou
tle
t
for
h
o
t
w
ater
c
i
r
cula
t
i
o
n.
T
he
e
xc
ha
nger
i
s
p
lac
e
d
10
c
m
a
b
ove
t
he
d
iges
ter’
s
bo
t
t
om
s
urfa
ce
.
Thi
s
surfa
ce
c
o
n
t
a
i
ns
a
n
i
n
le
t
of
t
he
e
fflue
n
t
a
s
w
e
l
l
;
how
e
v
e
r
,
t
h
e
i
n
l
e
t
o
f
th
e
d
i
ges
t
er
i
s
ma
de
o
f
a
p
i
pe
w
hic
h
c
o
nt
ai
ns
hol
es
o
f
1
c
m
e
a
c
h
,
t
o
h
e
l
p
fe
ed
a
nd
a
git
a
t
e
t
h
e
e
ff
lu
e
nts
i
n
side
d
e
d
i
ges
t
er
c
o
n
ti
nu
o
u
s
l
y
dur
in
g
the
expe
r
i
me
n
t
.
T
h
e
bi
o
d
i
g
es
ter
is
h
ea
ted
v
i
a
t
h
e
s
o
l
a
r
wat
e
r
he
at
i
ng
sys
t
e
m
a
n
d
t
he
t
e
m
pe
rature
i
ns
ide
is
ma
int
a
ine
d
a
t
37
°
C
t
o
ass
u
re
t
he
a
c
t
i
v
it
y
of
t
he
m
ic
roor
gan
i
sm
s
f
or
t
h
e
m
esop
hi
l
i
c
a
n
a
e
ro
bic
d
i
ge
st
i
o
n
proce
ss [12].
2.3.
D
a
ta
l
og
gin
g
Wh
ile
d
e
v
e
l
o
p
i
n
g
t
h
e
da
ta
a
c
quis
i
t
i
on
sys
t
em
,
m
a
ny
pos
si
b
i
l
i
tie
s
were
p
resent
.
however,
t
he
A
r
dui
n
o
p
rot
o
t
ypi
ng
e
n
v
i
r
o
n
m
ent
se
em
ed
m
ore
eff
i
cie
n
t
due
t
o
i
t
s
d
i
ve
rsit
y
in
b
o
t
h
h
a
rdw
a
re
a
nd
s
o
ftw
a
r
e
aspec
t
s
[1
3].
It
p
r
o
v
i
de
s
seve
ral
de
vel
opm
en
t
c
i
r
c
u
i
t
b
o
ar
ds
u
s
i
n
g
A
t
m
e
l
l
o
w
pow
er
C
MO
S
8b
it
mic
r
oco
n
tro
l
le
rs
(
AVR
enha
nc
ed
R
I
S
C
a
r
c
h
i
t
ec
t
u
r
e
),
capa
b
l
e
o
f
c
omp
u
t
i
n
g
a
l
mos
t
300
0
00
c
o
de
l
i
n
es.
A
defi
ni
te
ly
s
u
f
f
i
c
i
en
t
a
m
o
u
n
t
f
or
d
ata
c
o
llec
t
i
on
a
n
d
st
orage
.
A
rdui
no
b
o
a
r
ds
c
ome
a
l
o
ng
w
i
t
h
a
n
ope
n
s
ource
,
fre
e
i
n
t
egr
a
ted
de
v
e
lopm
en
t
e
n
v
i
r
o
nme
n
t
(ID
E)
t
o
hel
p
r
unn
i
ng
m
ost
ope
rat
i
ng
s
y
s
t
e
m
s
usi
n
g
C
/
C
+
+
pro
g
ra
mm
ing
l
a
ng
ua
ge
[
13]
.
The
A
r
du
i
n
o
c
o
m
m
uni
t
y
i
s
c
onsi
d
er
ed
one
o
f
the
l
a
rges
t
c
o
mm
uni
ties
o
n
t
he
w
e
b,
provi
d
i
n
g
sol
u
t
i
ons t
o ha
rdw
a
r
e
a
nd softw
a
r
e
issues
t
o
dev
e
l
oper
s
a
l
l
a
rou
nd t
h
e
w
o
rld [1
4].
Ma
ny
se
nsor
s
and
de
vice
s
a
l
rea
dy
ha
ve
c
os
tum
e
l
i
b
rar
i
e
s
,
ot
hers
i
n
process,
h
ence
assur
i
ng
m
os
t
l
y
succe
ssfu
l
d
a
t
a
co
llec
t
i
on
pro
t
o
t
yp
e
s
.
T
a
ki
n
g
f
or
e
xa
m
p
le
i
n
d
o
o
r
env
i
ro
nm
en
t
data
c
o
l
lec
t
i
o
n
[
1
5
]
,
tem
p
era
t
ur
e
an
d
h
u
m
i
dit
y
m
on
itor
i
n
g
i
nsi
d
e
bui
ld
i
ngs
[
1
6
],
hum
a
n’s
a
c
ti
v
i
t
y
m
o
n
it
orin
g
usi
ng
WIF
I
a
nd
Zi
gbee
[
1
7
]
,
a
l
so
b
a
l
anc
i
ng
e
nve
l
ope
a
n
d
h
ea
tin
g
s
y
s
t
em
p
ara
m
e
t
e
r
s
for
r
e
trofi
t
a
nal
y
s
i
s
u
s
in
g
b
u
il
di
ng
d
a
t
a
[1
8].
A
l
o
n
g
w
i
t
h
t
hese
s
t
u
die
s
–
a
n
d
o
t
h
e
r
s
–
it
i
s
show
n
t
h
at
t
h
e
Ard
u
i
no
p
l
a
tf
o
r
m
ca
n
c
o
me
h
a
ndy
a
n
d
e
a
s
y
to u
se
i
n
most
d
i
f
f
i
c
u
lt
ap
p
l
i
c
ati
ons,
e
s
pe
cia
l
ly d
i
ffe
ren
t
da
t
a co
l
l
e
c
ti
o
n
[19
–21
].
To
da
y,
t
her
e
a
re
m
a
n
y
A
r
dui
no
b
o
ard
ty
pe
s
avai
la
ble
i
n
t
he
m
a
r
k
e
t
f
o
r
c
h
e
a
p
p
r
i
c
e
s
.
T
h
e
A
r
d
u
i
n
o
Me
ga
2
5
6
0
i
s
w
ildl
y
u
se
d
a
n
d
d
o
c
u
m
e
n
t
e
d
a
mong
deve
l
o
per
s
[
1
3
]
.
Its
e
l
e
c
trica
l
a
n
d
c
o
m
m
u
nic
a
tio
n
fe
atures
ma
de
i
t
a
d
e
q
u
a
te
t
o
our
a
pp
li
c
a
t
ion
d
e
ta
il
e
d
o
n
Ta
ble
3.
T
he
m
e
ga
2
5
6
0
i
s
s
pec
i
a
l
l
y
d
es
i
gne
d
f
o
r
m
o
re
com
p
le
x pr
o
j
e
c
ts. It has 5
4
d
i
g
ita
l Inp
u
t
/
O
ut
pu
ts -w
h
i
c
h
15
c
an
be
u
s
ed as
P
W
M o
u
tp
ut
s
-
16 ana
l
og
pin
s
, an
d
hardw
a
re
s
eria
l
por
ts
(
U
A
R
T
s
)
,
a
16
MH
z
c
r
ysta
l
osc
i
l
l
a
t
or
a
U
S
B
ca
ble
for
c
o
m
p
ut
e
r
/b
oard
c
o
n
n
ect
io
n
as
w
e
ll
a
s
p
ow
e
r
[
F
i
g
u
re
7
].
T
he
boa
r
d
i
s
a
l
s
o
p
rov
i
de
d
w
i
th
p
ow
er
j
ac
k
t
o
a
s
s
ur
e
au
to
n
o
mo
us
p
ow
e
r
s
upp
l
y
f
or
the
b
o
ar
d
.
A
rd
ui
n
o
M
e
g
a
25
60
i
s
c
o
m
p
at
i
b
l
e
w
i
t
h
a
l
a
rge
num
ber
of
s
h
i
e
l
ds
i
ni
t
i
a
l
l
y
d
es
ig
ne
d
to
e
a
r
lier
A
r
dui
n
o
boar
d
v
ersio
n
s,
e
a
s
y
t
o
m
ani
p
u
l
a
t
e
usi
ng
the
A
r
du
i
no
ID
E
1.8
.
5,
a
nd
assure
s
-
t
he
m
e
g
a
25
60-
a
large
r
spac
e
f
o
r
p
rogram
ing s
k
etc
h
e
s
[14].
Evaluation Warning : The document was created with Spire.PDF for Python.
Int J
P
o
w
E
l
e
c
&
D
ri S
yst
IS
S
N
:
2088-
86
94
D
eve
lopm
en
t o
f
an
ine
x
p
en
siv
e
dat
a l
o
g
g
er f
o
r so
lar
wa
te
r
hea
t
ing
system
re
gu
l
a
t
o
rs (Ai
t
Ahm
e
d Wa
ssi
m
a
)
75
9
F
i
gure
7.
A
rduin
o
Me
g
a
b
o
ar
d
[1
3]
Ta
b
l
e
3.
Ardui
no M
e
ga
2
5
60
ha
rdw
a
r
e
spe
cs [14]
Spe
c
i
fi
c
a
t
i
o
n
s
A
rduin
o
M
e
g
a
2560
Proce
ssor
A
T
m
e
g
a
2560
(
A
V
R
)
Proce
ssor spee
d
16 MHz
A
r
c
h
it
e
c
t
ure
8bi
t
Fla
s
h Mem
o
ry
256
K
B
o
f
whi
c
h
8
KB
u
s
e
d
by
bootloa
d
e
r
SR
AM
8
K
B
EE
P
R
O
M
4
KB
Prog
r
a
m
i
ng
l
a
nguage
C
v
a
r
i
a
nt
D
i
gita
l
pins
54
(1
5
PW
M
)
A
n
a
l
og
pins
16
(0
-5V
)
C
l
o
c
k
sp
ee
d
16
M
H
z
2.3.
1.V
B
u
s
lib
r
a
ry
A
s
m
any
fea
t
u
r
es,
the
V
B
us
p
ro
toc
o
l
ha
s
a
l
so
its
o
w
n
l
i
b
ra
ry
o
n
A
rd
ui
no
,
i
n
o
rd
e
r
t
o
he
l
p
d
i
s
c
r
e
t
i
ze
the d
a
ta
r
ec
ei
v
e
d
from
t
he
R
e
s
o
l
D
e
l
ta
So
l
r
e
gu
la
tors.
The
li
bra
ry
s
ho
u
l
d be
i
nc
l
u
de
d
t
o
t
he
A
rdui
n
o
s
k
e
t
c
h
to
gi
ve
t
he
p
ro
gr
am
mer
a
se
nse
of
t
he
d
i
f
f
e
re
nt
r
e
a
d
i
ng
s
t
ru
cture
s
.
The
V
B
us
l
ibr
a
ry
c
o
n
ta
i
n
s
m
a
ny
fe
atures
inc
l
ud
ing
:
4
tem
p
era
t
ure
readi
n
gs
Water
p
u
mp
s
ta
tus
and spe
e
d
O
p
e
r
ati
o
n time
A
l
e
r
ts,
sc
hem
e
s a
nd t
i
m
e
.
O
n
c
e
t
he
da
t
a
i
s
re
ceive
d re
ad
a
nd un
der
s
t
o
o
d
,
i
t
s
hou
l
d
be
st
o
red
f
o
r
f
u
rther
use.
2.3.
2.D
a
ta
s
tora
ge
To
s
tor
e
t
he
d
ata
c
o
m
i
ng
f
ro
m
the
R
e
so
l
D
e
ltaSo
l
C
/
4
re
gu
l
a
t
o
r
w
e
c
o
n
n
e
c
te
d
a
V
.
1
s
h
ie
l
d
t
o
the
A
r
d
u
i
n
o
M
e
g
a
,
i
n
w
h
i
c
h
w
e
i
n
s
e
r
t
e
d
a
n
S
D
c
a
r
d
a
n
d
a
3
v
o
l
t
s
l
i
t
hi
um
c
oi
n
ce
ll
ba
tte
ry
f
or
t
he
R
T
C
p
ow
er
con
s
um
pt
io
n.
a.
Micr
oSD car
d
G
e
nera
lly,
i
n
t
his
k
i
nd
of
a
p
p
l
i
ca
t
i
o
n
s,
t
he
d
ata
is
s
t
o
re
d
on
M
i
c
r
oS
D
ca
rds,
f
orm
a
tte
d
in
F
at
1
6
o
r
Fat
3
2
fo
rma
t
.
Mi
c
r
o
S
D
c
a
r
d
s
p
rovi
d
e
unl
i
m
i
t
e
d
s
to
rag
e
s
pac
e
,
s
i
n
c
e
ti
me
a
nd
s
e
n
so
rs
d
at
a
are
st
o
r
e
d
a
s
p
l
ain
tex
t
i
n
a
c
o
m
m
a
-
d
elimi
t
ed
f
o
r
ma
t,
e
ach
o
n
e
o
f
the
s
e
data
p
o
i
n
t
s
p
re
se
nt
s
o
n
ly
a
f
e
w
b
yte
s
;
We
u
se
d
in
o
ur
rese
arc
h
a
n
8
G
B
M
icr
o
S
D
car
d
w
h
ic
h
cos
t
s
a
l
m
o
st
6
$,
c
hea
p
b
ut
c
a
pa
b
l
e
of
s
tor
i
ng
b
i
lli
o
n
s
of
me
asure
m
e
n
t
s
.
The
da
ta
c
an
b
e
re
trie
ve
d
b
y
i
n
sert
in
g
the
S
D
a
da
ptor
f
or
M
i
c
roS
D
i
n
a
ny
t
o
day’
s
c
o
mputer
.
Ma
ny
libr
a
ries
i
n
th
e
A
r
d
u
i
n
o
com
m
un
i
t
y
can
b
e
use
d
i
n
pro
t
ot
y
p
in
g
M
i
croS
D
’
s
based
a
p
p
l
ic
a
t
io
ns.
F
o
r
in
sta
n
c
e
,
the
S
D
l
i
b
r
a
ry
b
y
Spar
kfu
n
E
lec
t
ron
i
cs
o
r
Wi
llia
m
G
r
e
im
an’s
S
D
F
a
t
A
r
duino
l
ibrary
[
15]….
We
ca
n
progra
m
t
he
A
rdu
i
no
M
ega
to
s
ave
da
ta
i
n
ma
ny
f
ile
f
orm
a
ts
in
c
l
ud
in
g
.tx
t
o
r
.c
sv
,
bu
t
it
t
h
i
s
c
a
se
w
e
cho
o
se
t
o
s
t
or
e
them
i
n
an
E
xce
l
f
il
e
,
t
o
fa
cil
ita
te
t
he
e
x
t
ra
c
ti
on
a
nd
g
ra
p
h
i
c
a
l
e
x
p
l
o
re
o
f
ou
r
res
u
lts.
Th
e
V
B
us e
xtra
c
t
e
d
da
t
a can a
lso
be
s
t
o
red us
in
g EEP
RO
MS
o
r
S
P
I
fl
a
sh
m
em
ories, how
ev
e
r
due
t
o the
i
r
limi
t
e
d
me
mor
y
c
apa
c
ity
a
n
d
a
ddi
ti
o
n
al
p
r
o
gram
ming
nec
e
ss
ity,
w
e
d
i
s
re
g
arde
d
t
h
e
i
r
use
i
n
our
a
p
p
l
i
c
a
t
i
ons,
b
u
t
the
y
c
an he
l
p
as
b
a
c
k
u
p
stor
i
ng
de
v
i
ce
s
i
n
ca
s
e of ele
c
t
rici
t
y
or
com
m
unic
a
t
i
o
n fai
l
u
res [15].
b.
Real
t
i
me clock (RTC)
To
k
e
e
p
t
r
a
c
k
o
f
t
h
e
da
t
e
a
nd
t
i
m
e
d
uri
n
g
the
w
a
ter
he
atin
g
sys
tem
o
p
e
r
at
io
n,
t
he
D
S
130
7
Rea
l
Time
C
loc
k
o
n
the
V
.
1
st
ori
n
g
sh
i
e
ld
c
am
e
ha
nd
y
t
o
a
ss
ure
th
is
s
p
eci
fica
tio
n.
D
S
1307
i
s
a
r
ea
l
tim
e
chi
p
o
f
Evaluation Warning : The document was created with Spire.PDF for Python.
I
S
S
N: 2
0
8
8
-
86
94
I
nt
J
P
o
w
E
l
e
c
&
D
r
i
S
yst
,
Vol.
10,
N
o.
2
,
Ju
ne
2
0
19
:
7
5
3
–
7
67
76
0
Da
ll
a
s
e
le
c
t
ron
i
cs de
s
i
g
ned
fo
r ti
m
e
kee
p
i
ng,
the
t
im
e is
q
uite
a
ccu
r
a
t
e
w
i
th
a
1
min
tim
e drift pe
r m
ont
h
,
it is
c
o
mm
onl
y
bac
k
ed
u
p
w
ith
t
he
CR12
2
0
b
at
te
r
y
c
oi
n
ce
ll
f
o
r
pow
er
consu
m
pti
o
n
[
F
ig
ur
e
8]
.
2.
3.
3.
A
d
ap
t
a
t
i
on
p
rot
o
c
o
l
I
n
t
h
i
s
pr
ojec
t,
t
he
d
ata
r
e
t
r
ie
ved
fr
om
t
he
Res
ol
D
e
lta
S
o
l
C
/
4
r
e
g
ul
at
o
r
i
s
un
re
ad
ab
l
e
i
n
c
a
se
w
e
c
o
n
n
ec
ted
t
h
e
r
e
gu
l
a
t
o
r
to
t
h
e
A
r
duin
o
b
oa
r
d
e
ve
n
i
f
w
e
use
d
t
h
e
li
br
ar
y
sinc
e
the
V
B
us
p
r
o
t
o
c
o
l
i
n
n
o
t
sup
p
o
rte
d
b
y
t
h
e
UAR
T
for
m
at
o
f
t
h
e
Ardui
n
o
e
n
t
ry
p
ins
.
H
e
n
ce,
we
h
ad
t
o
re
al
i
z
e
a
n
a
dap
t
a
t
i
o
n
cir
c
uit
to
c
h
an
ge
t
he
V
Bus
f
o
r
m
at
g
i
v
en
by
t
h
e
r
e
gul
a
t
or
t
o
S
e
r
i
a
l
f
or
ma
t
un
der
s
ta
nda
b
l
e
b
y
t
he
A
r
d
u
i
n
o
[
2
2
]
–
[
2
4]
.
Th
us,
usin
g
t
h
e
RS
4
8
5
e
le
c
t
r
i
c
a
l
i
nter
f
a
c
e
i
n
th
is
c
ase
w
a
s
he
l
p
f
u
l
f
o
r
i
t
s
s
i
m
i
l
a
r
i
t
y
w
i
t
h
t
h
e
V
B
u
s
c
o
mm
unic
a
t
i
o
n
si
gna
l
[
25]
.
F
i
gur
e
9.
R
S
4
8
5
c
omm
uni
cat
i
on
pr
ot
oc
ol
i
n
t
er
fac
e
f
or
d
a
t
a
tr
a
n
s
miss
ion
a
nd
r
e
c
e
p
tio
n
The
R
S
4
85
s
e
r
i
al
p
or
t
c
o
m
m
unica
ti
on,
i
s
qu
it
e
p
o
p
u
l
ar
i
n
m
o
nit
or
in
g
a
nd
co
n
t
r
o
ll
ing
s
y
ste
m
s
a
p
p
lica
tio
ns,
it
c
an
b
e
q
u
ite
a
dva
n
t
a
g
e
o
us
f
o
r
l
on
g
d
i
sta
n
ce
c
o
m
m
uni
c
a
t
ion
a
nd
an
ti-
jam
m
i
ng
[2
6]
[
F
i
gur
e
9]
,
si
nc
e
i
t
a
do
p
t
s
ha
l
f
d
up
le
x
c
o
mm
unica
t
i
ons
w
hic
h
p
r
o
vi
des
lo
t
l
ess
con
n
ec
tio
n
c
a
b
le
s
t
h
an
o
the
r
s
e
r
ial
c
o
mm
unic
a
t
i
o
ns
s
uc
h
as
R
S
4
22A
d
e
t
a
ile
d
o
n
F
i
g
ur
e
10,
a
n
d
a
h
igh
e
r
c
om
munica
ti
on
d
i
s
t
anc
e
-
u
p
t
o
1
2
00
m
[25
]
.
Th
e
R
S
48
5
h
a
s
th
e
f
o
rm
o
f
b
a
l
a
n
c
e
di
ffe
ren
c
e
c
onne
ct
ing
,
i
.
e.
,
the
se
nder
ha
s
on
e
end
of
r
e
ceiv
i
n
g
a
s
w
e
ll
a
s
o
n
e
en
d
of
s
e
n
d
i
ng
w
h
ile
t
he
r
ec
eiv
e
r
has
the
sam
e
e
nds
o
f
se
ndi
ng
a
nd
r
ec
ei
vin
g
.
T
h
e
s
a
m
e
ca
b
l
es
a
r
e
used
t
o
e
i
the
r
e
nd
deta
ile
d
o
n
F
i
g
ur
e
1
0
.
We
s
h
o
u
l
d
no
te
t
h
a
t
t
he
R
S
4
4
2
A
an
d
RS
48
5
have
n
ear
ly
t
he
sa
me
e
lectr
i
ca
l
pr
o
p
ert
i
es,
t
h
e
RS4
2
2
A
ca
n
c
o
mm
un
ica
t
e
i
n
f
u
l
l
du
pl
ex
b
u
t
h
a
s
t
wi
ce
th
e
co
mmu
n
ic
at
ion
c
a
ble
s
a
s
the
RS
485
de
p
i
cte
d
on
F
i
gur
e
1
0
[
25,
26]
.
(a
)
(b
)
F
i
gur
e
1
0
.
Co
mm
unica
ti
o
n
p
r
i
nc
ipa
l
(
a)
R
S48
5
(
b)
R
S
4
2
2
A
[
25]
The
s
i
g
n
a
l
V
B
u
s
pr
od
uc
es
i
s
si
m
i
lar
to
R
S
4
85
i
n
i
ts
dua
l
p
o
lar
i
t
y
a
spe
c
t
bu
t
no
t
q
u
i
te
t
he
s
a
m
e
.
T
he
c
i
r
c
u
it
use
d
i
n
F
i
gur
e
11 he
lp
s
pr
ocess the
s
i
gna
l
a
nd
t
h
en t
ur
n
it to
a
s
ig
n
a
l
o
f
96
0
0
b
a
ud
ra
t
e
,
with 5V
serial
da
t
a
s
u
i
ta
ble f
o
r
i
n
te
r
f
a
c
i
n
g
a
n
A
r
dui
n
o
M
e
g
a
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0.
O
ur
a
da
pt
in
g
cir
c
uit i
s
m
ainly base
d o
n
c
ompa
r
a
t
o
r
s
a
n
d
r
e
si
s
t
o
r
s
a
s
i
l
l
us
t
r
at
e
in
t
he Fi
g
u
r
e 11
.
Evaluation Warning : The document was created with Spire.PDF for Python.
Int J
P
o
w
E
l
e
c
&
D
ri S
yst
IS
S
N
:
2088-
86
94
D
eve
lopm
en
t o
f
an
ine
x
p
en
siv
e
dat
a l
o
g
g
er f
o
r so
lar
wa
te
r
hea
t
ing
system
re
gu
l
a
t
o
rs (Ai
t
Ahm
e
d Wa
ssi
m
a
)
76
1
F
i
gure
11. V
B
u
s to U
AR
T
adap
ta
tion circuit
The
ada
p
ti
o
n
c
ircu
it
i
s
b
ui
lt
u
s
i
ng
a
L
M
39
3
c
o
mpa
r
at
or,
a
dio
d
e
b
ri
dge
,
pul
l
u
p
p
u
ll
do
w
n
r
esist
o
r
s
and
rec
tific
a
tio
n
resistor
s.
a.
L
M
393
The
ST
M
icr
o
ele
c
t
ro
n
i
cs
L
M39
3
d
e
v
ic
e
con
s
ists
o
f
tw
o
inde
pen
d
e
n
t
l
o
w
vo
lta
ge
c
ompa
rat
o
r
s
(oper
a
t
i
ona
l
a
m
p
l
i
f
ier
s
)
desi
gne
d
to
o
p
e
ra
t
e
f
rom
a
s
i
n
g
le
s
u
p
p
ly
o
v
e
r
a
wide
r
an
ge
o
f
v
o
l
t
age
s
.
The
com
p
ara
t
o
r
s
i
n
te
grate
d
i
ns
id
e
t
h
e
LM
3
93,
h
a
v
e
a
u
n
i
qu
e
cha
r
ac
t
e
ri
st
ic
a
s
wel
l
:
th
e
co
mmo
n
m
o
d
e
inp
u
t
vo
lta
ge
r
an
ge
i
nc
l
ude
s
gro
u
n
d
e
ve
n
i
f
it
i
s
opera
ted
fr
om
a
s
in
gle
pow
er
s
up
ply
v
o
l
t
a
g
e
.
The
LM3
9
3
ca
n
com
e
h
and
y
i
n m
a
ny
elec
t
r
on
ic
base
d
sys
t
e
ms
u
se
d t
o
up
g
ra
de
m
a
j
or
pla
nt
s.
b.
Bri
dge re
c
tif
ie
r
A
b
r
id
g
e
r
ec
ti
fi
e
r
i
s
a
ki
nd
o
f
f
u
ll
w
a
v
e
re
cti
f
i
e
r
t
h
at
u
ses
f
our
d
i
o
des
(
o
r
m
o
re)
in
a
b
ridge
circuit
to
c
o
nv
e
r
t
AC
c
urre
n
t
i
nt
o
DC
.
Th
e
di
od
e
b
r
i
d
g
e
r
e
c
t
i
f
i
e
r
u
s
e
d
i
n
thi
s
c
i
r
cui
t
h
el
p
e
d
m
i
n
i
miz
e
th
e
co
st
a
n
d
s
i
ze
of
t
he
re
c
ti
fier
(
w
e
w
on’t use
an
e
xpe
ns
i
v
e
cente
r ta
ppe
d tr
ans
for
m
er)
.
3.
RESULT
S
A
N
D
DISCU
SSIO
N
I
n
t
he
r
esu
lt
s
ecti
o
n,
w
e
pre
s
en
t
the
bu
i
l
d
i
ng
proc
ess
o
f
t
he
V
B
u
s
d
a
t
a
l
o
g
g
e
r
,
s
t
a
r
t
i
n
g
w
i
t
h
t
h
e
pro
g
ra
m
a
l
gor
ithm
,
c
od
in
g
la
ng
ua
ge,
impl
em
enta
t
i
o
n
,
ad
apt
i
ng
c
i
rc
u
it
a
nd
fina
l
for
m
o
f
the
de
vic
e
.
T
he
resul
t
s of
t
he
d
a
t
a
lo
g
g
in
g
are
give
n
in
t
he
resu
l
ts
s
e
c
t
i
on.
3.1.
Pr
og
ra
m alg
o
r
i
th
m
The
a
l
g
o
ri
thm
use
d
w
hile
c
od
ing
t
h
e
A
r
d
u
i
n
o
spec
i
f
ica
t
i
o
n
s
i
s
m
ade
o
f
t
wo
m
a
i
n
s
i
g
n
i
fican
t
pa
rts:
re
ad
in
g
th
e
VBu
s
d
at
a
co
min
g
fro
m
t
h
e
Re
sol
De
lt
a
S
o
l
r
eg
ul
a
t
o
r
,
a
nd
t
h
en
s
t
o
ri
ng
t
he
m
ea
ning
fu
l
va
lue
s
o
n
a
n
S
D
ca
rd
t
o
b
e
r
e
t
ri
ev
e
d
l
ate
r
w
h
e
n
n
eed
ed
.
Th
e
VB
u
s
A
rd
ui
no
l
i
b
rar
y
h
e
l
pe
d
de
c
i
phe
r
tem
p
era
t
ure
val
u
e
s
gi
ve
n
b
y
t
he
P
T1
00
0
se
ns
ors
a
n
d
late
r
de
liv
e
r
ed
b
y
the
r
e
g
u
la
t
o
r,
w
hi
le
t
h
e
S
D
l
i
bra
r
y
prepa
r
es
t
he
M
ic
r
o
S
D
to re
cei
ve
a
nd
st
ore
the
dat
a
i
n
a
*csv fi
l
e.
F
i
g
ur
e 12
the
r
ef
o
re,
gives
the
p
r
ogra
m
a
lgori
t
hm.
F
i
gur
e 1
2
.
Ar
duin
o
p
ro
gram
algor
it
hm
Evaluation Warning : The document was created with Spire.PDF for Python.
I
S
S
N: 2
0
8
8
-
86
94
I
nt
J
P
o
w
E
l
e
c
&
D
r
i
S
yst
,
Vol.
10,
N
o.
2
,
Ju
ne
2
0
19
:
7
5
3
–
7
67
76
2
3.
2.
A
d
aptor
circu
it
The
ada
p
t
i
n
g
c
ir
cu
it
bu
i
lt
us
i
ng
s
i
m
p
le
e
l
e
c
t
r
o
n
i
c
com
p
one
nt
s,
i
n
c
l
ud
in
g
r
e
sis
t
or
s
d
i
ode
s
con
n
ec
t
i
o
n
c
a
ble
s
a
n
d
h
e
a
d
er
s.
W
e
first
tes
t
ed
t
he
c
i
r
cui
t
o
n
a
br
ead
boa
r
d
t
o
veri
fy
t
he
u
t
ili
ty
o
f
t
h
e
de
v
i
ce
;
o
n
ce
the
va
lue
s
d
isp
l
a
y
e
d
o
n
the
ser
i
al
m
o
n
itor
,
w
e
re
alized
t
he
P
CB
ve
r
s
i
on
o
f
t
he
c
ir
cui
t
t
o
m
a
i
n
ta
in
e
a
c
h
co
mp
on
en
t
i
n
it
s
ri
g
h
t
fu
l
pl
ace
t
o
p
r
ev
en
t
ci
r
c
u
i
t
di
s
c
o
n
n
e
cti
o
n
[F
i
gur
e
14]
.
3.
3.
D
a
ta
l
ogg
i
n
g
d
e
v
i
c
e
O
n
ce
t
he
c
ir
c
u
it
is
m
ade
,
w
e
con
n
ec
te
d
t
h
e
G
N
D
a
nd
5V
p
i
n
s
of
t
he
A
r
d
u
i
n
o
boar
d
t
o
t
h
e
pow
e
r
he
ader
o
f t
h
e c
i
r
c
u
it,
t
he
R
X
1
pin o
f the
A
r
duin
o
me
g
a to t
he R
X
out
put
o
f
t
h
e
ci
rcui
t
,
w
h
i
l
e
t
h
e
V
B
u
s
ca
b
l
es
from
the
Re
g
u
la
t
o
r
are
inse
rte
d
i
ns
ide
the
i
n
p
u
t
he
a
d
er
o
f
the
ci
rcu
i
t
d
i
s
p
l
a
y
e
d
as
F
i
g
u
r
e
14
.
On
ce
t
h
e
pr
ogr
am
i
s
im
pl
e
m
e
n
te
d
on
t
he
A
r
dui
no
boa
r
d
,
w
e
p
ow
er
ed
t
he
d
e
v
ic
e
us
i
ng
a
v
o
l
ta
ge
a
dap
t
or
(
p
h
o
n
e
c
h
ar
ge
r
9V
)
,
i
n
s
tea
d
o
f
t
h
e
com
pute
r
U
S
B
c
able
i
n
or
der
to
g
i
v
e
a
m
on
ot
o
n
o
u
s
as
pe
ct
t
o
t
h
e
da
ta
l
o
ggi
n
g
sy
s
t
em.
F
i
gur
e
1
4
.
V
B
us
d
a
t
a
st
or
i
n
g
dev
i
ce
3.
3.
1.
P
r
oj
e
c
t
cost
s
A
s
m
enti
one
d
bef
o
r
e
t
he
d
a
t
al
o
g
g
i
ng
s
yst
e
m
is
m
ade
u
s
ing
sim
p
l
e
c
om
po
ne
nt
s
av
a
i
l
a
b
l
e
i
n
t
he
m
a
r
k
et
a
n
d
a
t
l
o
w
p
r
ices
a
s
we
l
l
,
c
o
mpa
r
ed
t
o
t
h
e
da
tal
o
gg
er
p
r
ovide
d
b
y
the
Re
so
l
Co
m
p
any,
i
t
cam
e
qu
i
t
e
ch
e
a
p
[
T
a
bl
e 4].
Tab
l
e
4
lis
t
s
t
he
p
r
i
c
e
s
of
e
a
c
h
com
p
o
n
e
n
t
s
i
m
p
lem
e
n
t
ed
o
n
t
h
e
d
a
t
a
l
o
g
g
e
r
d
e
v
i
c
e
;
c
o
s
t
s
a
r
e
pr
ovi
de
d
in
U
S
do
lla
r
s
c
ur
r
e
nt
a
s
o
f
2
0
1
7
,
bo
u
g
h
t
f
r
o
m
d
i
f
f
e
r
e
n
t
r
e
t
a
ile
r
s
.
The
da
tal
o
gge
r
has
a
n
e
xp
e
c
te
d
c
o
st
s
av
in
g
o
f
a
r
ound
80%
t
o
90%
c
om
par
e
d
t
o
Res
o
l
d
a
t
a
l
o
g
g
i
ng
m
o
d
u
l
e
s.
T
his
fea
t
ur
e
alo
ng
w
i
th
t
h
e
f
act
tha
t
t
he
d
a
t
a
log
g
e
r
i
s
a
n
o
p
e
n
s
o
urce
p
la
tfor
m
tha
t
a
l
l
ows
fur
t
h
er
d
ev
elo
p
m
e
n
t
in
h
a
r
d
w
are
a
n
d
so
ftwa
re
a
s
p
e
c
t
s
an
d
prov
i
d
es
a
r
e
liab
l
e
pe
rform
anc
e
com
p
ar
ed
t
o
i
n
d
u
s
t
r
i
a
l
da
taloggers,
shows
the
ut
ilit
y
of
A
r
duino
ba
se
d
da
t
a
log
g
e
r
s
i
n
e
n
er
gy
ind
u
s
t
r
y
.
Tab
l
e
4.
D
atalog
ger
bu
i
l
d
i
ng
e
xpe
nses
Ma
te
ria
l
s
Pri
c
e
A
r
dui
no
Me
g
a
20
$
V
.
1
SD
Shie
l
d
3
$
8
G
B
M
i
c
r
o
S
D
c
a
r
d
6
$
Ada
p
t
e
r
C
i
rc
uit (
c
om
pa
r
a
tor, re
s
ist
o
rs, c
a
b
l
e
s …)
5
$
Tota
l
31$
3.
3.
2.
A
p
p
l
icat
i
o
n
r
e
su
lt
s
I
n
t
hi
s
p
a
per
w
e
p
r
e
se
n
t
t
he
r
esul
ts
o
f
the
pla
t
for
m
i
nt
e
g
r
a
ti
o
n
in
t
hr
e
e
d
if
fer
e
nt
R
e
s
o
l
r
e
g
u
l
a
t
or
s,
e
ach
r
e
g
u
l
a
t
or
p
r
e
sen
t
s
di
ffer
e
n
t
tem
p
era
t
ur
e
char
acte
r
i
s
t
i
c
s
.
The
f
i
r
s
t
da
t
a
l
og
ger
w
a
s
c
o
n
n
ec
ted
t
o
t
he
Res
o
l
De
lt
a
So
l
C/4
Re
gu
la
tor,
c
o
n
tr
oll
i
ng
the
b
i
o
d
i
ges
t
er
p
r
e
se
nte
d
i
n
t
h
e
meth
od
s
se
ct
io
n
,
w
h
i
l
e
t
h
e
s
ec
on
d
a
nd
th
ir
d
da
ta
lo
g
g
e
r
s
w
e
r
e
c
onne
c
t
e
d
t
o
t
h
e
Res
o
l
D
el
ta
S
o
l
B
S
a
n
d
R
e
s
o
l
de
lt
a
S
o
l
E
respec
t
i
ve
ly
c
on
t
r
o
lli
ng
a
b
i
gg
er
b
io
d
ig
esti
ng
p
l
a
nt.
a.
Resol
delta sol C/
4
The fir
s
t
te
sts
of
t
he
d
ata l
o
g
g
in
g
s
y
st
em
w
er
e
c
o
n
duc
te
d bef
o
r
e
tur
n
in
g on
t
h
e
s
o
la
r
he
ati
n
g
s
y
s
t
em
,
tak
i
ng
i
n
t
o
a
c
c
ou
n
t
one
s
en
sor
at
f
ir
st
t
he
n
t
w
o
….
,
t
o
v
er
if
y
th
e
q
u
a
li
ty
o
f
t
h
e
d
a
t
a
c
o
m
in
g
in
f
rom
t
h
e
Evaluation Warning : The document was created with Spire.PDF for Python.