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J
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l
y
2021
,
p
p
.
7
7
~
8
6
I
SS
N:
2722
-
3221
,
DOI
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
7
2
2
-
3221
C
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m
p
u
t.
Sci.
I
n
f
.
T
ec
h
n
o
l.
,
Vo
l.
2
,
No
.
2
,
J
u
l
y
20
2
1
:
7
7
–
8
6
78
Du
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e
is
n
o
g
u
id
e
th
at
f
a
m
iliar
ize
s
u
s
er
s
w
it
h
ex
i
s
tin
g
p
r
o
g
r
a
m
m
i
n
g
p
la
t
f
o
r
m
s
t
h
at
th
e
y
ca
n
c
h
o
o
s
e
to
s
tar
t
d
ev
elo
p
in
g
t
h
eir
ap
p
lic
atio
n
s
o
n
t
h
e
E
SP
m
o
d
u
les.
W
e
ca
n
f
i
n
d
m
a
n
y
t
u
to
r
ials
a
n
d
a
lo
t
o
f
i
n
f
o
r
m
atio
n
o
n
th
e
i
n
ter
n
et
r
eg
ar
d
in
g
o
n
l
y
s
p
ec
if
ic
la
n
g
u
a
g
e
b
u
t
n
o
n
e
o
f
t
h
e
m
co
v
er
s
all
p
lat
f
o
r
m
s
i
n
o
n
e
w
o
r
k
.
E
v
er
y
lan
g
u
a
g
e
is
v
er
y
s
p
ec
i
f
ic
a
n
d
h
as it
s
o
u
ts
tan
d
i
n
g
f
ea
t
u
r
es.
T
h
e
ex
is
ti
n
g
p
r
o
b
lem
i
s
t
h
at
u
s
er
s
n
ee
d
to
k
n
o
w
an
d
u
n
d
er
s
tan
d
e
v
er
y
p
lat
f
o
r
m
s
ep
ar
atel
y
an
d
s
till
m
i
g
h
t
b
e
co
n
f
u
s
ed
ab
o
u
t
w
h
ic
h
p
lat
f
o
r
m
is
th
e
m
o
s
t
ap
p
r
o
p
r
iate
to
th
eir
n
ee
d
s
.
T
h
e
in
s
p
ir
atio
n
f
o
r
th
is
w
o
r
k
w
a
s
t
h
e
in
ac
ce
s
s
ib
ili
t
y
o
f
g
o
o
d
co
m
p
ar
is
o
n
s
a
n
d
lan
g
u
ag
e
p
er
f
o
r
m
an
ce
test
s
.
T
h
e
o
v
er
lo
ad
o
f
th
e
n
o
n
-
s
p
ec
i
f
ic
in
f
o
r
m
atio
n
ca
u
s
es
t
h
at
n
e
w
u
s
er
s
(
s
tu
d
e
n
ts
,
h
o
b
b
y
i
s
ts
)
m
a
y
g
et
lo
s
t
an
d
d
is
co
u
r
ag
e
d
to
u
s
e
d
if
f
er
en
t
p
r
o
g
r
am
m
i
n
g
lan
g
u
ag
e
s
.
I
n
th
is
w
o
r
k
,
r
esear
c
h
e
s
h
a
v
e
b
ee
n
co
n
d
u
cted
o
r
ien
tated
t
o
w
ar
d
f
a
m
iliar
izi
n
g
p
o
ten
tial u
s
er
s
w
it
h
th
e
e
x
i
s
tin
g
s
o
lu
tio
n
s
b
y
clea
r
l
y
d
is
c
u
s
s
i
n
g
a
v
ailab
le
p
lat
f
o
r
m
s
.
T
h
an
k
s
to
th
is
w
o
r
k
u
s
er
s
ca
n
b
ase
th
eir
ch
o
ice
w
it
h
o
u
t
w
ast
in
g
ti
m
e
s
ea
r
ch
i
n
g
s
ep
ar
ated
k
n
o
w
led
g
e.
I
t
d
eliv
er
s
t
h
e
m
o
s
t
i
m
p
o
r
tan
t
in
f
o
r
m
atio
n
ab
o
u
t
ea
ch
p
lat
f
o
r
m
an
d
co
m
p
ar
es
th
e
m
.
I
t
all
o
w
s
s
elec
tin
g
th
e
m
o
s
t
s
u
itab
le
s
o
lu
tio
n
s
f
o
r
th
e
in
d
iv
id
u
al
t
y
p
e
s
o
f
u
s
er
s
.
R
ese
ar
ch
es
co
n
ce
r
n
ea
ch
o
n
e
o
f
t
h
e
lis
ted
p
r
o
g
r
a
m
m
in
g
la
n
g
u
a
g
e
s
an
d
p
r
o
v
id
e
clea
r
co
n
clu
s
io
n
s
th
a
t
an
s
w
e
r
t
h
e
q
u
esti
o
n
s
:
Wh
ich
p
r
o
g
r
a
mmin
g
p
la
tfo
r
m
is
th
e
b
est
fo
r
a
p
a
r
t
icu
la
r
u
s
er
?
W
h
ich
o
n
e
is
th
e
mo
s
t su
ita
b
le
fo
r
th
e
p
a
r
ticu
la
r
typ
e
o
f p
r
o
ject
?
2.
E
SP
P
RO
G
RAM
M
I
NG
I
n
th
is
r
esear
ch
,
f
o
u
r
w
a
y
s
o
f
p
r
o
g
r
am
m
i
n
g
th
e
E
SP
b
o
ar
d
s
ar
e
co
n
s
id
er
ed
.
Dev
elo
p
m
en
t
in
C
lo
w
-
lev
el
p
r
o
g
r
a
m
m
in
g
lan
g
u
ag
e
is
o
f
ten
co
n
n
ec
ted
w
it
h
R
e
al
-
T
i
m
e
Op
er
atin
g
S
y
s
te
m
(
R
T
OS)
.
T
h
e
o
f
f
icial
s
u
p
p
o
r
ted
p
latf
o
r
m
b
y
E
s
p
r
es
s
if
i
s
E
SP
8
2
6
6
R
T
OS
SDK
wh
ich
u
s
es
Fre
e
R
T
OS
as
an
o
p
er
atin
g
s
y
s
te
m
.
T
h
e
s
ec
o
n
d
ap
p
r
o
ac
h
to
p
r
o
g
r
am
E
SP
m
o
d
u
le
s
is
t
h
e
C
++
la
n
g
u
ag
e
w
h
ic
h
u
s
es
A
r
d
u
i
n
o
lib
r
ar
ies.
I
t
is
th
e
m
o
s
t
p
o
p
u
lar
s
o
lu
tio
n
w
h
ic
h
i
s
s
u
p
p
o
r
ted
b
y
s
e
v
er
al
p
r
o
g
r
a
m
m
i
n
g
en
v
ir
o
n
m
e
n
ts
li
k
e
A
r
d
u
i
n
o
I
DE
,
Vis
u
al
St
u
d
io
C
o
d
e
(
VSC
)
,
o
r
ev
en
E
clip
s
e.
T
h
e
n
ex
t
ar
e
to
u
s
e
MP
o
r
L
u
a
lan
g
u
a
g
es.
T
h
e
y
b
o
th
r
eq
u
ir
e
a
d
ed
icate
d
f
ir
m
w
ar
e
th
at
h
as
to
b
e
d
ep
lo
y
ed
i
n
to
th
e
b
o
ar
d
m
e
m
o
r
y
.
T
h
e
y
b
o
t
h
o
f
f
er
a
p
o
w
er
f
u
l
to
o
l
in
th
e
s
h
a
p
e
o
f
a
f
ile
s
y
s
te
m
.
I
t
ca
n
s
to
r
e
m
o
r
e
t
h
an
o
n
e
d
e
v
elo
p
ed
p
r
o
g
r
am
,
o
u
t
o
f
w
h
ic
h
a
u
s
er
ca
n
r
u
n
w
h
ich
e
v
er
p
r
o
g
r
a
m
h
e
w
i
s
h
e
s
.
T
h
e
last
e
x
is
t
in
g
s
o
lu
tio
n
is
to
u
s
e
A
T
C
o
m
m
a
n
d
s
w
h
ic
h
all
o
w
s
en
d
i
n
g
co
m
m
a
n
d
s
to
t
h
e
b
o
ar
d
v
ia
s
er
ial
co
m
m
u
n
icatio
n
.
T
h
at
w
a
y
o
f
p
r
o
g
r
am
m
i
n
g
an
E
SP
b
o
ar
d
h
as
n
o
t
b
ee
n
co
n
s
id
er
ed
in
t
h
is
w
o
r
k
b
ec
au
s
e
it
i
s
in
te
n
d
ed
to
u
s
e
it
as
a
W
i
-
Fi
m
o
d
u
le
[
8
]
-
[
1
0
]
.
I
t
is
a
v
er
y
f
ast
w
a
y
to
ch
ec
k
co
m
m
u
n
ica
ti
o
n
w
it
h
t
h
e
b
o
ar
d
o
r
test
s
o
m
e
m
o
d
u
le
s
b
u
t it
i
s
h
ar
d
to
co
m
p
ar
e
it
w
i
th
p
r
o
g
r
a
m
m
i
n
g
la
n
g
u
a
g
es.
2
.
1
.
C++
Usu
al
l
y
,
u
s
er
s
d
o
n
o
t
h
a
v
e
a
ch
o
ice
b
et
w
ee
n
p
r
o
g
r
a
m
m
i
n
g
l
an
g
u
a
g
es
t
h
at
t
h
e
y
ca
n
u
s
e
to
p
r
o
g
r
am
a
p
ar
ticu
lar
m
icr
o
co
n
tr
o
ller
.
E
SP
b
o
ar
d
s
ar
e
s
u
p
p
o
r
ted
b
y
s
e
v
er
al
s
o
lu
tio
n
s
.
User
s
,
w
h
o
s
tar
t
p
r
o
g
r
a
m
m
in
g
,
w
i
ll
b
e
in
f
l
u
en
ce
d
b
y
a
p
o
p
u
lar
ity
i
n
d
icato
r
lik
e
also
b
y
t
h
e
n
u
m
b
er
o
f
av
ailab
le
an
d
alr
ea
d
y
i
m
p
le
m
e
n
ted
s
o
lu
tio
n
s
.
I
n
th
at
ca
s
e,
th
e
m
o
s
t
p
o
p
u
lar
w
a
y
to
p
r
o
g
r
a
m
E
SP
m
icr
o
co
n
tr
o
ller
s
is
th
e
C
++
lan
g
u
a
g
e.
T
h
e
in
ter
n
et
is
f
u
l
l
o
f
p
r
ep
ar
ed
tu
to
r
ials
in
d
if
f
er
en
t
f
o
r
m
s
,
s
o
b
eg
i
n
n
er
s
m
ig
h
t
th
i
n
k
t
h
at
t
h
er
e
is
n
o
o
th
er
wa
y
to
p
r
o
g
r
a
m
th
a
t
m
icr
o
co
n
tr
o
ller
.
T
h
is
p
o
p
u
lar
it
y
m
a
y
b
e
g
o
o
d
b
ec
au
s
e
i
t
allo
w
s
f
o
r
f
a
s
t
an
d
ea
s
y
g
ettin
g
s
tar
ted
w
it
h
p
r
o
g
r
am
m
i
n
g
E
SP
m
o
d
u
le
s
.
T
h
e
p
o
p
u
lar
it
y
o
f
m
icr
o
co
n
tr
o
ll
er
p
r
o
g
r
a
m
m
in
g
in
C
++
is
g
r
o
u
n
d
ed
in
t
h
e
s
u
cc
e
s
s
o
f
A
r
d
u
i
n
o
b
o
ar
d
s
.
T
h
ey
h
a
v
e
b
ec
o
m
e
v
er
y
p
o
p
u
lar
th
an
k
s
t
o
th
e
n
u
m
b
er
o
f
av
ailab
le
p
r
o
jects.
B
ased
o
n
th
e
ex
is
t
in
g
A
r
d
u
i
n
o
lib
r
ar
ies,
u
s
e
r
s
h
a
v
e
to
i
m
p
le
m
e
n
t
A
r
d
u
i
n
o
co
r
e
f
o
r
E
SP
8
2
6
6
.
T
h
at
co
r
e
allo
w
s
f
o
r
w
r
iti
n
g
th
e
co
d
e
u
s
in
g
f
a
m
il
iar
A
r
d
u
i
n
o
f
u
n
ctio
n
s
an
d
lib
r
ar
ies.
T
h
an
k
s
to
th
e
d
ed
icate
d
en
v
ir
o
n
m
en
ts
,
it
is
s
i
m
p
le
to
r
u
n
i
m
p
le
m
e
n
ted
s
k
etc
h
es
d
ir
ec
tl
y
o
n
E
SP
8
2
6
6
w
ith
o
u
t
a
n
ex
ter
n
a
l
m
icr
o
co
n
tr
o
ller
.
T
h
e
E
SP
8
2
6
6
A
r
d
u
in
o
co
r
e
in
clu
d
es
all
n
ec
ess
ar
y
lib
r
ar
ies
w
h
ic
h
s
u
p
p
o
r
t:
co
n
tr
o
l
GP
I
O,
c
o
m
m
u
n
ica
tio
n
o
v
er
W
i
-
Fi
u
s
in
g
T
C
P
an
d
UDP
,
s
et
u
p
HT
T
P
,
m
D
NS
a
n
d
DNS
s
er
v
er
s
,
u
s
e
a
f
ile
s
y
s
t
e
m
i
n
f
las
h
m
e
m
o
r
y
,
w
o
r
k
w
it
h
SD
ca
r
d
s
,
s
er
v
o
s
,
an
d
co
m
m
u
n
icatio
n
p
r
o
to
co
ls
: SP
I
,
I
2
C
,
o
r
UA
R
T
[
11
]
-
[
15
].
W
o
r
k
in
g
w
i
th
E
SP
8
2
6
6
A
r
d
u
i
n
o
co
r
e
is
ea
s
ier
f
o
r
u
s
er
s
w
h
o
alr
ea
d
y
g
o
t
f
a
m
il
iar
w
ith
p
r
o
g
r
a
m
m
i
n
g
A
r
d
u
i
n
o
b
o
ar
d
s
.
T
h
an
k
s
to
v
er
y
w
ell
i
m
p
le
m
e
n
ted
lib
r
ar
ies,
i
n
m
o
s
t
ca
s
es u
s
er
s
h
av
e
o
n
l
y
t
o
ca
ll
in
itializatio
n
f
u
n
ctio
n
a
n
d
th
e
n
s
o
m
e
co
n
t
r
o
l
f
u
n
ctio
n
s
.
T
o
co
m
p
ile
th
e
w
r
it
ten
co
d
e,
u
s
er
s
ca
n
u
s
e
s
ev
er
al
I
n
te
g
r
ated
Dev
elo
p
m
e
n
t
E
n
v
ir
o
n
m
e
n
t
s
(
I
DE
)
.
Du
r
in
g
t
h
is
w
o
r
k
,
w
e
h
av
e
test
ed
t
h
r
ee
m
o
s
t
p
o
p
u
l
ar
I
DE
s
w
h
ic
h
ar
e:
A
r
d
u
i
n
o
I
DE
,
Vi
s
u
al
S
tu
d
io
C
o
d
e,
an
d
E
clip
s
e.
E
ac
h
o
f
t
h
o
s
e
I
DE
s
r
eq
u
ir
es
a
co
u
p
le
o
f
s
te
p
s
to
b
e
p
e
r
f
o
r
m
ed
.
T
h
ese
allo
w
f
la
s
h
in
g
t
h
e
w
r
i
tt
en
s
k
e
tch
e
s
in
to
t
h
e
b
o
ar
d
m
e
m
o
r
y
.
A
r
d
u
i
n
o
I
DE
r
eq
u
ir
es
ad
d
in
g
a
p
ac
k
ag
e
w
it
h
th
e
E
SP
b
o
ar
d
s
th
at
allo
w
i
n
s
t
allin
g
t
h
e
E
SP
8
2
6
6
p
latf
o
r
m
.
T
h
at
p
ac
k
ag
e
o
f
f
er
s
also
a
lo
t
o
f
p
r
ep
ar
ed
s
k
etch
e
s
.
Evaluation Warning : The document was created with Spire.PDF for Python.
C
o
m
p
u
t.
Sci.
I
n
f
.
T
ec
h
n
o
l.
C
o
mp
a
r
is
o
n
o
f E
S
P
p
r
o
g
r
a
mmin
g
p
la
tfo
r
ms
(
F
ilip
R
a
k
)
79
On
e
t
h
i
n
g
n
ee
d
ed
to
d
o
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s
c
h
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o
s
in
g
t
h
e
co
r
r
ec
t
b
o
ar
d
an
d
s
et
a
co
m
m
u
n
icatio
n
p
o
r
t.
I
n
t
h
o
s
e
f
e
w
s
tep
s
,
A
r
d
u
in
o
I
DE
is
r
ea
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y
to
f
las
h
p
r
o
g
r
a
m
s
.
T
h
e
s
ec
o
n
d
en
v
ir
o
n
m
e
n
t
is
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Vis
u
al
St
u
d
io
C
o
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e.
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t
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r
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ito
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.
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t
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icate
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O
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te
m
[
1
2
]
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T
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at
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s
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ev
elo
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o
f
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w
ar
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8
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d
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S
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2
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o
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clip
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y
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A
V
R
.
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r
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ir
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ad
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g
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e
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SP
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ar
d
s
in
th
e
s
a
m
e
w
a
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as
in
A
r
d
u
in
o
I
DE
.
Af
ter
th
e
s
e
s
tep
s
,
E
clip
s
e
i
s
r
ea
d
y
to
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ea
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a
p
r
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j
ec
t a
n
d
f
lash
th
e
p
r
o
g
r
a
m
.
2
.
2
.
L
ua
An
o
th
er
ap
p
r
o
ac
h
to
p
r
o
g
r
am
E
SP
b
o
ar
d
s
is
to
u
s
e
No
d
eM
C
U
f
ir
m
w
ar
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th
at
is
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o
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L
u
a
b
ased
f
ir
m
w
ar
e
f
o
r
th
e
E
SP
8
2
6
6
[
15
]
.
Ded
icate
d
E
SP
8
2
6
6
b
o
ar
d
s
w
it
h
alr
ea
d
y
lo
ad
ed
No
d
eM
C
U
f
ir
m
w
ar
e
ar
e
av
ailab
le
o
n
th
e
m
ar
k
et.
T
h
e
E
SP
8
2
6
6
SDK
ca
n
b
e
ca
te
g
o
r
iz
ed
in
to
t
w
o
t
y
p
es:
No
n
-
OS
SDK
a
n
d
R
T
OS
SDK.
T
h
e
No
n
-
OS
S
DK
d
o
es
n
o
t
b
ase
o
n
an
o
p
er
atin
g
s
y
s
t
e
m
,
it
u
s
e
s
ti
m
er
s
an
d
ca
ll
-
b
ac
k
s
as
t
h
e
m
ai
n
w
a
y
to
p
er
f
o
r
m
v
ar
io
u
s
f
u
n
ctio
n
s
.
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d
eM
C
U
is
i
m
p
le
m
e
n
ted
in
C
p
r
o
g
r
a
m
m
in
g
la
n
g
u
a
g
e
an
d
it
is
la
y
er
ed
o
n
th
e
E
s
p
r
ess
i
f
No
n
-
OS S
DK.
T
h
e
s
o
f
t
w
ar
e
is
n
o
w
ad
a
y
s
co
m
m
u
n
i
t
y
-
s
u
p
p
o
r
ted
an
d
th
e
f
ir
m
w
ar
e
ca
n
b
e
r
u
n
o
n
a
n
y
E
SP
b
o
a
r
d
.
T
h
e
m
a
in
L
u
a
d
es
ig
n
ed
g
o
al
s
ar
e
s
p
ee
d
,
p
o
r
tab
i
lit
y
,
ex
te
n
s
ib
ilit
y
,
a
n
d
s
m
al
l
k
er
n
el
s
ize.
T
h
e
L
u
a
is
an
as
y
n
c
h
r
o
n
o
u
s
a
n
d
ev
en
t
-
d
r
iv
en
s
cr
ip
t
lan
g
u
a
g
e
[
16
]
,
[
17
]
.
Oth
er
lan
g
u
ag
e
s
ar
e
p
r
o
c
ed
u
r
al
th
at
m
a
k
es
a
clea
r
f
lo
w
o
f
ex
ec
u
tio
n
[
18
]
,
[
19
]
.
L
u
a
r
eq
u
ir
es
th
e
as
y
n
c
h
r
o
n
o
u
s
m
o
d
e
an
d
o
th
er
ap
p
r
o
a
ch
es
to
d
ev
elo
p
an
d
s
tr
u
ct
u
r
e
th
eir
ap
p
licatio
n
s
.
R
ef
er
r
i
n
g
to
ev
en
t
-
d
r
iv
e
n
p
r
o
g
r
a
m
m
i
n
g
s
t
y
le,
tas
k
s
ar
e
ass
o
ciate
d
w
it
h
g
i
v
en
ev
en
t
s
b
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s
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g
SDK
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P
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ich
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eg
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ter
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ll
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o
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s
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r
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n
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ts
.
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en
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ter
n
all
y
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n
SDK.
T
h
en
f
ir
m
w
ar
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ca
lls
th
e
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ciate
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ar
ticu
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en
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ti
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e.
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h
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SDK
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n
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n
s
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s
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ler
t
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te
s
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ed
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k
s
w
ith
FIFO
(
f
ir
s
t
i
n
f
ir
s
t
o
u
t)
f
o
r
m
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la.
An
i
m
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ta
n
t
th
i
n
g
is
to
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b
ey
ti
m
e
li
m
it
s
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ec
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s
e
task
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th
at
r
u
n
f
o
r
m
o
r
e
th
a
n
1
5
m
s
ca
n
d
is
r
u
p
t
o
th
er
tas
k
s
,
f
o
r
ex
a
m
p
le,
W
i
-
Fi
w
o
r
k
i
n
g
.
T
h
e
r
ec
o
m
m
en
d
atio
n
is
to
k
ee
p
m
ed
iu
m
p
r
io
r
it
y
ta
s
k
s
u
n
d
er
2
m
s
a
n
d
lo
w
p
r
io
r
ity
tas
k
s
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n
d
er
1
5
m
s
to
p
r
ev
en
t th
e
r
esp
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w
o
r
k
o
f
t
h
e
s
y
s
te
m
.
T
h
e
r
u
n
n
i
n
g
w
atc
h
d
o
g
w
il
l
r
eset
th
e
m
icr
o
co
n
tr
o
ller
if
th
e
task
tak
es
lo
n
g
er
th
an
5
0
0
ms
.
A
n
o
t
h
er
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m
ita
tio
n
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s
t
h
e
av
ai
lab
ilit
y
o
f
th
e
f
r
ee
R
a
n
d
o
m
-
A
cc
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s
Me
m
o
r
y
(
R
AM
)
s
p
ac
e
.
E
SP
h
ar
d
w
ar
e
e
x
ec
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te
s
co
d
e
in
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A
M
b
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t
it
ca
n
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e
al
s
o
ex
e
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ted
f
r
o
m
Fla
s
h
-
m
ap
p
ed
ad
d
r
ess
s
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ac
e.
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v
elo
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er
s
m
u
s
t
b
e
ca
r
ef
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l
b
ec
au
s
e
it
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s
y
to
g
o
o
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t
o
f
f
r
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m
e
m
o
r
y
w
h
e
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th
e
y
d
ev
e
lo
p
ap
p
licatio
n
s
u
s
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n
g
t
h
e
L
u
a
co
r
e
R
u
n
-
T
i
m
e
S
y
s
te
m
(
R
T
S).
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h
e
L
u
a
R
T
S
as
s
u
m
e
s
t
h
at
b
o
th
L
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a
d
ata
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d
co
d
e
ar
e
s
to
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ed
in
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AM
.
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h
e
s
o
lu
tio
n
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t
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s
e
t
h
e
L
u
a
Flas
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Sto
r
e
(
L
FS
)
p
atch
w
h
ic
h
m
o
d
if
ies
t
h
e
L
u
a
R
T
S.
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t
allo
w
s
th
e
L
u
a
co
d
e
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d
its
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o
ciate
d
co
n
s
ta
n
t
d
ata
to
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e
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ec
u
ted
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ir
ec
tl
y
o
u
t
o
f
f
las
h
m
e
m
o
r
y
,
in
th
e
s
a
m
e
w
a
y
,
lik
e
is
No
d
eM
C
U
f
ir
m
w
ar
e.
T
h
e
No
d
eM
C
U
p
r
o
j
ec
t
u
s
e
s
th
e
SP
I
Flas
h
Fil
e
S
y
s
te
m
(
SP
I
FF
S)
to
s
to
r
e
f
iles
i
n
t
h
e
f
las
h
m
e
m
o
r
y
.
T
h
e
SDK
i
n
v
o
k
es
a
s
tar
t
-
u
p
h
o
o
k
w
it
h
i
n
t
h
e
f
ir
m
w
ar
e
o
n
b
o
o
t
-
u
p
m
o
d
e.
Du
r
i
n
g
b
o
o
t,
f
ir
m
w
ar
e
co
d
e
in
itializes
t
h
e
L
u
a
e
n
v
ir
o
n
m
e
n
t,
an
d
n
ex
t
i
t
lo
o
k
s
f
o
r
in
it.lu
a
f
ile.
I
t
is
a
d
ef
au
lt
ex
ec
u
ted
af
ter
b
o
o
ti
n
g
.
I
n
th
i
s
f
ile,
th
e
u
s
er
s
h
o
u
ld
d
o
an
y
r
eq
u
ir
ed
in
itial
izatio
n
s
,
ca
ll
ti
m
er
alar
m
s
,
b
in
d
ca
ll
-
b
ac
k
r
o
u
ti
n
es,
o
r
r
u
n
o
th
er
s
cr
ip
ts
.
Mo
r
e
th
a
n
o
n
e
s
cr
ip
t
ca
n
b
e
s
to
r
ed
in
th
e
SP
I
FF
S
t
h
at
ca
n
b
e
ex
e
cu
ted
f
r
o
m
i
n
it.l
u
a
f
ile
o
r
b
y
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llin
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ed
icate
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d
o
f
ile
co
m
m
an
d
.
L
u
a
f
ir
m
w
ar
e
o
f
f
er
s
s
ev
er
al
co
m
m
a
n
d
s
w
h
ic
h
ca
n
b
e
u
s
ed
to
m
an
a
g
e
th
e
f
ile
s
y
s
te
m
,
r
u
n
s
cr
ip
ts
,
o
r
r
eset
th
e
b
o
ar
d
.
T
h
at
is
p
o
s
s
ib
le
af
ter
co
m
m
u
n
icate
w
i
th
th
e
b
o
ar
d
u
s
i
n
g
s
er
ial
co
m
m
u
n
i
ca
t
io
n
.
T
h
e
d
ef
au
lt
b
au
d
r
ate
is
s
et
i
n
f
ir
m
w
ar
e
to
1
1
5
2
0
0
b
it/s
.
E
SP
b
o
ar
d
s
r
u
n
n
in
g
L
u
a
s
cr
i
p
ts
r
eq
u
ir
es
d
ed
icate
d
f
ir
m
w
ar
e.
T
h
e
b
u
ild
i
n
g
o
f
f
ir
m
w
ar
e
h
as
to
b
e
d
o
n
e
b
y
u
s
er
s
.
T
h
e
r
ea
d
y
f
ir
m
w
ar
e
i
s
n
o
t
m
o
r
e
a
v
ailab
le
b
ec
au
s
e
o
f
th
e
in
cr
ea
s
i
n
g
n
u
m
b
er
o
f
m
o
d
u
les.
T
h
er
e
ar
e
th
r
ee
w
a
y
s
:
#
1
u
s
in
g
C
lo
u
d
B
u
ild
Ser
v
ice
in
te
n
d
ed
f
o
r
u
s
er
s
w
h
o
n
ee
d
a
r
ea
d
y
-
m
ad
e
f
ir
m
w
ar
e
to
s
tar
t
d
e
v
elo
p
in
g
t
h
eir
ap
p
licatio
n
s
.
O
n
th
e
w
eb
s
it
e,
u
s
er
s
m
a
y
c
h
o
o
s
e
m
o
d
u
les
:
GP
I
O,
U
A
R
T
,
P
W
M
,
T
im
er
s
,
A
D
C
,
o
r
W
i
-
F
i.
A
f
te
r
th
e
tas
k
a
n
d
s
et
u
p
t
h
eir
p
r
o
p
er
ties
,
th
e
f
ir
m
w
ar
e
w
il
l
b
e
p
r
e
p
ar
ed
an
d
s
en
d
to
t
h
e
e
m
ail
b
o
x
as
a
b
in
f
ile.
#
2
u
s
i
n
g
Do
ck
er
I
m
a
g
e
w
h
ich
is
in
te
n
d
ed
f
o
r
u
s
er
s
w
h
o
d
o
n
o
t
n
ee
d
f
u
ll
co
n
tr
o
l
o
v
er
th
e
co
m
p
lete
to
o
lch
ai
n
.
#
3
s
ettin
g
u
p
a
L
i
n
u
x
v
ir
t
u
al
m
ac
h
in
e.
I
t
u
s
es
t
h
e
L
i
n
u
x
b
u
ild
en
v
ir
o
n
m
en
t
an
d
o
f
f
er
s
a
p
o
w
er
f
u
l
en
v
ir
o
n
m
en
t
w
it
h
th
e
co
m
p
lete
to
o
lch
ain
.
On
ce
th
e
f
ir
m
w
ar
e
is
cr
ea
ted
,
th
e
u
s
er
m
a
y
u
s
e
esp
to
o
l.p
y
to
f
las
h
th
e
f
ir
m
war
e
in
to
b
o
a
r
d
m
e
m
o
r
y
.
I
t
is
s
u
p
p
o
r
ted
b
y
m
a
n
y
o
p
er
atin
g
s
y
s
te
m
s
s
u
c
h
as
W
in
d
o
w
s
,
L
in
u
x
,
o
r
m
ac
O
S.
W
in
d
o
w
s
an
d
m
ac
O
S
u
s
er
s
ca
n
also
u
s
e
No
d
eM
C
U
P
y
F
las
h
er
.
T
h
e
E
SP
lo
r
e
r
o
r
No
d
eM
C
U
-
T
o
o
l
allo
w
s
f
o
r
u
p
lo
ad
in
g
a
w
r
itte
n
s
cr
ip
t.
E
SP
lo
r
er
I
DE
is
a
m
u
ltip
lat
f
o
r
m
to
o
l
w
ith
a
g
r
ap
h
ical
in
ter
f
ac
e.
I
t
s
u
p
p
o
r
ts
p
r
o
g
r
am
m
i
n
g
i
n
L
U
A
li
k
e
also
in
MP
.
Af
ter
co
n
n
ec
ti
n
g
w
i
t
h
t
h
e
E
SP
b
o
ar
d
u
s
in
g
s
er
ial
co
m
m
u
n
icati
o
n
,
u
s
er
s
ca
n
also
u
s
e
A
T
C
o
m
m
a
n
d
s
th
at
ar
e
s
u
p
p
o
r
ted
b
y
t
h
is
I
DE
.
T
h
e
No
d
eM
C
U
-
T
o
o
l is b
ased
o
n
No
d
e.
j
s
an
d
it o
f
f
er
s
o
n
l
y
a
co
n
s
o
le
ter
m
i
n
al.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
7
2
2
-
3221
C
o
m
p
u
t.
Sci.
I
n
f
.
T
ec
h
n
o
l.
,
Vo
l.
2
,
No
.
2
,
J
u
l
y
20
2
1
:
7
7
–
8
6
80
2
.
3
.
M
icr
o
P
y
t
ho
n
Mic
r
o
P
y
t
h
o
n
(
MP
)
is
a
tin
y
o
p
en
-
s
o
u
r
ce
,
i
n
ter
p
r
eted
,
an
d
o
b
j
ect
-
o
r
ien
ted
s
cr
ip
ti
n
g
lan
g
u
ag
e
th
at
r
u
n
s
o
n
m
icr
o
co
n
tr
o
ller
s
.
I
t
is
a
h
ig
h
-
le
v
el
p
r
o
g
r
a
m
m
in
g
lan
g
u
a
g
e
b
ased
o
n
P
y
t
h
o
n
co
r
e.
T
h
e
MP
id
ea
is
to
k
ee
p
co
d
e
as
s
i
m
p
le
as
p
o
s
s
ib
le,
s
o
it
is
f
r
ie
n
d
l
y
f
o
r
b
eg
i
n
n
er
s
[
20
]
-
[
23
]
.
T
h
e
s
tr
u
ctu
r
e
o
f
t
h
e
c
o
d
e
is
s
i
m
i
lar
to
th
e
s
tr
u
ct
u
r
e
o
f
A
r
d
u
in
o
ap
p
licatio
n
s
.
I
n
o
p
p
o
s
itio
n
to
L
u
a,
MP
is
p
r
o
ce
d
u
r
al.
T
h
is
s
i
m
p
licit
y
h
a
s
its
d
is
ad
v
a
n
ta
g
es.
I
t c
o
m
es a
t t
h
e
ex
p
en
s
e
o
f
s
p
e
ed
an
d
m
e
m
o
r
y
u
s
ag
e
co
m
p
ar
ed
to
th
e
A
r
d
u
in
o
co
r
e
o
r
No
d
eM
C
U
co
r
e.
On
e
o
f
th
e
b
ig
g
est
d
i
f
f
er
en
ce
s
b
et
w
ee
n
MP
an
d
L
u
a
is
t
h
at
t
h
e
f
o
r
m
er
is
an
i
n
ter
p
r
eted
lan
g
u
ag
e
w
h
er
ea
s
t
h
e
latter
i
s
a
n
ati
v
el
y
co
m
p
iled
co
d
e.
I
t
r
ev
ea
ls
t
h
at
MP
m
ig
h
t
b
e
s
lo
w
er
a
n
d
m
o
r
e
m
e
m
o
r
y
co
n
s
u
m
ed
w
h
a
t
w
ill
b
e
ex
a
m
in
ed
in
t
h
is
w
o
r
k
.
Mo
r
eo
v
er
,
ap
p
licatio
n
s
th
at
h
a
v
e
tig
h
t ti
m
in
g
s
,
m
ig
h
t n
o
t
w
o
r
k
w
it
h
th
i
s
p
r
o
g
r
am
m
i
n
g
lan
g
u
a
g
e
[
20
]
.
T
h
an
k
s
to
th
e
ex
ten
s
ib
ilit
y
o
f
MP
w
it
h
lo
w
-
le
v
el
lan
g
u
ag
e
s
lik
e
C
o
r
C
++
,
u
s
er
s
ca
n
m
i
x
th
e
m
to
p
r
o
v
id
e
f
aster
w
o
r
k
w
h
e
n
i
t
is
n
ee
d
ed
.
T
h
e
g
r
ea
test
u
n
iq
u
e
p
u
r
p
o
s
e
o
f
MP
is
t
h
e
p
o
s
s
ib
i
lit
y
to
u
s
e
th
e
R
ea
d
E
v
alu
a
te
P
r
in
t
L
o
o
p
(
R
E
P
L
)
.
T
h
is
to
o
l
allo
w
s
f
o
r
co
n
n
ec
ti
n
g
w
it
h
th
e
b
o
ar
d
an
d
ex
ec
u
ti
n
g
th
e
co
d
e
w
i
th
o
u
t
an
y
n
ee
d
o
f
co
m
p
ili
n
g
o
r
u
p
lo
ad
in
g
t
h
e
co
d
e.
T
h
e
a
p
p
licatio
n
s
ca
n
b
e
j
u
s
t r
u
n
o
n
th
e
b
o
ar
d
.
T
h
is
is
a
v
er
y
f
a
s
t
w
a
y
to
test
d
ev
elo
p
ed
ap
p
licat
io
n
s
an
d
r
u
n
co
m
m
an
d
s
.
User
s
ca
n
ac
ce
s
s
R
E
P
L
eith
er
b
y
s
er
ial
co
m
m
u
n
ica
tio
n
th
r
o
u
g
h
t
h
e
U
AR
T
o
r
b
y
a
W
i
-
Fi
co
n
n
ec
t
io
n
.
USB
co
n
n
ec
t
io
n
r
eq
u
ir
es
a
ter
m
in
al
e
m
u
lat
o
r
s
u
ch
as
P
u
tt
y
o
r
Her
cu
les.
L
i
n
u
x
u
s
er
s
ca
n
u
s
e
th
e
p
ico
co
m
ter
m
i
n
al
ap
p
licati
o
n
.
T
h
e
co
m
m
u
n
icatio
n
w
o
r
k
s
w
i
th
s
p
ee
d
1
1
5
2
0
0
b
it/s
.
T
h
r
o
u
g
h
t
h
e
R
E
P
L
,
u
s
er
s
ca
n
ev
e
n
w
r
ite
co
d
e
lin
e
b
y
l
in
e
a
n
d
ea
ch
o
f
th
e
li
n
es
w
i
ll
b
e
ex
ec
u
ted
u
p
to
d
ate.
W
o
r
k
in
g
w
it
h
MP
r
eq
u
ir
es
d
ed
icate
d
f
ir
m
w
ar
e.
I
n
co
n
tr
ast
to
L
u
a
f
ir
m
w
ar
e,
u
s
er
s
d
o
n
o
t
h
a
v
e
to
b
u
ild
it
b
y
th
e
m
s
elv
e
s
.
I
t
is
a
lr
ea
d
y
d
o
n
e
an
d
th
e
u
s
er
ca
n
ch
o
o
s
e
b
et
w
ee
n
t
h
r
ee
v
er
s
io
n
s
.
A
s
tab
le
v
er
s
io
n
is
r
ec
o
m
m
en
d
ed
f
o
r
b
eg
in
n
er
u
s
er
s
.
T
h
e
r
e
ar
e
tw
o
t
y
p
e
s
o
f
d
ail
y
v
er
s
io
n
s
t
h
at
ar
e
in
ten
d
e
d
f
o
r
m
o
r
e
ex
p
er
ien
ce
d
MP
d
ev
elo
p
er
s
.
T
o
d
e
p
lo
y
th
e
f
ir
m
w
ar
e
o
n
to
th
e
E
SP
m
o
d
u
le
it
is
h
ig
h
l
y
r
ec
o
m
m
e
n
d
ed
to
u
s
e
esp
to
o
l.p
y
w
h
ic
h
i
s
cu
r
r
en
tl
y
s
u
p
p
o
r
ted
to
o
l.
I
t
r
e
q
u
ir
es
an
in
s
talled
P
y
t
h
o
n
p
ac
k
ag
e.
T
h
en
t
h
r
o
u
g
h
th
e
s
y
s
te
m
co
n
s
o
le,
esp
to
o
l
ca
n
b
e
i
n
s
tal
led
.
On
ce
th
e
f
ir
m
war
e
is
d
ep
lo
y
ed
th
e
b
o
ar
d
is
r
ea
d
y
to
u
s
e
w
it
h
R
E
P
L
.
T
h
an
k
s
to
th
e
in
ter
n
al
f
iles
y
s
te
m
,
u
s
er
s
ca
n
s
to
r
e
m
o
r
e
d
ev
elo
p
ed
ap
p
licatio
n
s
o
n
to
th
e
E
SP
b
o
ar
d
an
d
r
u
n
w
h
ich
ev
er
th
e
y
w
a
n
t.
Mo
r
eo
v
er
,
i
t
is
p
o
s
s
ib
le
to
cr
ea
te
o
w
n
d
ir
ec
to
r
ies
an
d
m
a
n
ag
e
th
e
f
ile
s
y
s
te
m
.
Af
ter
b
o
o
t,
th
e
f
ir
m
w
ar
e
r
u
n
s
th
e
b
o
o
t.p
y
f
ile,
an
d
t
h
en
it
lo
o
k
s
f
o
r
t
h
e
m
ai
n
.
p
y
f
i
le
[
20
]
.
I
f
t
h
e
u
s
er
w
a
n
t
s
to
en
s
u
r
e
ex
ec
u
ti
n
g
ap
p
licatio
n
af
ter
ev
er
y
b
o
o
t,
h
e
h
as
to
n
a
m
e
th
at
f
i
le
as
m
ai
n
.
p
y
.
R
E
P
L
is
a
v
er
y
u
s
e
f
u
l
to
o
l
at
th
e
b
eg
in
n
in
g
o
f
w
o
r
k
in
g
w
it
h
MP
b
u
t
it
is
n
o
t
a
g
o
o
d
s
o
lu
tio
n
f
o
r
d
ev
elo
p
in
g
m
o
r
e
co
m
p
le
x
ap
p
licat
io
n
s
.
T
h
er
e
ar
e
s
ev
er
al
to
o
ls
to
m
a
n
a
g
e
f
iles
y
s
te
m
:
R
E
P
L
,
a
m
p
y
,
r
s
h
ell,
o
r
m
p
f
s
h
e
ll
.
Du
r
in
g
t
h
i
s
w
o
r
k
,
w
e
u
s
ed
a
m
p
y
,
a
cr
o
s
s
-
p
lat
f
o
r
m
co
m
m
a
n
d
-
li
n
e
to
o
l.
An
y
ed
ito
r
ca
n
b
e
u
s
ed
to
w
r
ite
co
d
e,
s
u
c
h
as
th
e
V
is
u
al
Stu
d
io
C
o
d
e.
T
h
er
e
is
also
a
d
e
d
icate
d
en
v
ir
o
n
m
en
t
ca
lled
u
P
y
C
r
a
f
t
I
DE
[
24
]
.
T
h
is
I
DE
is
n
o
t
f
u
r
th
er
s
u
p
p
o
r
ted
f
o
r
L
i
n
u
x
u
s
er
s
b
u
t
it
w
o
r
k
s
u
n
d
er
th
e
W
in
d
o
w
s
s
y
s
te
m
.
I
t
o
f
f
er
s
a
co
d
e
ed
ito
r
w
it
h
s
y
n
t
ax
ch
ec
k
in
g
.
I
t
also
in
cl
u
d
es n
ee
d
ed
to
o
ls
to
m
an
a
g
e
th
e
f
ile
s
y
s
te
m
an
d
r
u
n
ap
p
licatio
n
s
.
2
.
4
.
C
(
RT
O
S)
T
h
e
last
ap
p
r
o
ac
h
is
to
u
s
e
th
e
C
lan
g
u
a
g
e
w
h
ich
i
s
th
e
m
o
s
t
b
en
ef
icia
l
f
o
r
d
ev
elo
p
in
g
e
m
b
ed
d
ed
s
y
s
te
m
s
.
I
n
th
e
ca
s
e
o
f
E
SP
8
2
6
6
b
o
a
r
d
s
,
u
s
in
g
a
C
is
r
elate
d
to
R
ea
l
-
T
i
m
e
Op
er
atin
g
S
y
s
te
m
(
R
T
OS)
.
T
h
e
o
f
f
icia
l
s
u
p
p
o
r
ted
SDK
b
y
E
s
p
r
ess
if
S
y
s
te
m
is
E
SP
8
2
6
6
R
T
OS
S
DK
w
h
ic
h
u
s
es
Fre
eR
T
OS
as
an
o
p
er
atin
g
s
y
s
te
m
.
Fre
eRT
OS
i
s
i
n
ten
d
ed
f
o
r
m
icr
o
co
n
tr
o
ller
s
a
n
d
s
m
al
l
m
icr
o
p
r
o
ce
s
s
o
r
s
w
h
ic
h
i
s
d
is
tr
ib
u
ted
f
r
ee
l
y
u
n
d
er
th
e
o
p
en
-
s
o
u
r
ce
lice
n
s
e
[
25
]
.
T
h
e
s
y
s
te
m
is
m
u
ltit
a
s
k
i
n
g
w
h
ich
a
llo
w
s
e
x
ec
u
t
in
g
s
e
v
er
al
tas
k
s
p
s
eu
d
o
co
n
cu
r
r
en
t
l
y
[
26
]
.
T
o
a
llo
ca
te
ti
m
e
f
o
r
p
ar
ticu
lar
task
s
,
R
T
OS u
s
es a
s
ch
ed
u
ler
.
I
t is also
a
p
r
e
-
e
m
p
tiv
e
k
er
n
el
t
h
at
m
ea
n
s
t
h
at
t
h
e
cu
r
r
en
tl
y
r
u
n
n
in
g
tas
k
ca
n
b
e
ex
p
r
o
p
r
iated
w
h
e
n
an
e
v
en
t
o
cc
u
r
s
.
Usi
n
g
R
T
OS
SD
K
to
d
ev
elo
p
ap
p
licatio
n
s
f
o
r
E
S
P
m
o
d
u
les
i
s
n
o
t
r
ec
o
m
m
en
d
e
d
f
o
r
b
eg
in
n
er
d
ev
elo
p
er
s
.
I
t
r
eq
u
ir
es
k
n
o
w
led
g
e
ab
o
u
t
p
r
o
g
r
am
m
i
n
g
in
C
li
k
e
also
th
e
ab
ilit
y
to
u
s
e
p
o
in
ter
s
.
Fu
r
t
h
er
m
o
r
e,
it
is
i
m
p
o
r
ta
n
t
to
h
av
e
at
lea
s
t
a
b
asi
c
k
n
o
w
led
g
e
o
f
R
T
OS
w
o
r
k
in
g
.
T
h
e
b
asic k
n
o
w
led
g
e
s
h
o
u
ld
at
least in
cl
u
d
e:
cr
ea
tin
g
tas
k
s
,
task
s
c
h
ed
u
li
n
g
u
p
to
th
eir
p
r
io
r
ity
,
tas
k
s
tates,
q
u
eu
es,
s
e
m
ap
h
o
r
es,
an
d
m
u
te
x
.
Usi
n
g
R
T
OS
h
as
s
ev
er
al
b
en
e
f
its
w
h
ic
h
ar
e
u
n
iq
u
e
in
co
m
p
ar
is
o
n
to
o
th
er
s
o
lu
tio
n
s
.
I
t
allo
w
s
f
o
r
cr
ea
tin
g
m
u
lt
i
task
ap
p
licatio
n
s
t
h
at
ar
e
s
ch
e
d
u
led
b
y
t
h
e
s
y
s
te
m
,
w
h
ic
h
c
r
ea
tes
t
h
e
ill
u
s
io
n
o
f
ex
ec
u
t
in
g
s
e
v
er
al
tas
k
s
s
i
m
u
l
tan
eo
u
s
l
y
.
R
T
OS
is
m
o
r
e
d
et
er
m
in
is
tic
b
ec
a
u
s
e
ev
en
t
s
an
d
i
n
ter
r
u
p
t
s
ar
e
h
an
d
led
w
it
h
in
a
d
e
f
in
ed
ti
m
e.
E
ac
h
tas
k
is
al
lo
ca
ted
in
a
d
ef
i
n
ed
s
tac
k
s
p
ac
e
th
a
t
allo
w
s
p
r
ed
ictin
g
m
e
m
o
r
y
u
s
a
g
e.
I
t
is
m
u
c
h
m
o
r
e
p
o
w
er
f
u
l
t
h
an
C
++
o
r
MP
f
o
r
m
o
r
e
co
m
p
licated
an
d
co
m
p
le
x
ap
p
licatio
n
s
[
25
]
.
W
o
r
k
in
g
w
i
th
E
SP
8
2
6
6
R
T
OS
SDK
d
o
es n
o
t
r
eq
u
ir
e
an
y
d
ed
icate
d
f
ir
m
w
ar
e.
T
h
e
u
s
er
h
as
to
s
tar
t
w
it
h
s
ett
in
g
a
to
o
lch
ai
n
.
I
t in
clu
d
e
s
p
r
o
g
r
a
m
s
to
co
m
p
ile
an
d
b
u
ild
ap
p
licatio
n
s
.
I
t a
l
s
o
allo
w
s
f
la
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h
i
n
g
th
e
m
in
to
t
h
e
b
o
ar
d
m
e
m
o
r
y
.
T
h
e
to
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lch
ain
r
eq
u
ir
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a
b
u
ilt
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in
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k
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t t
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n
o
t in
cl
u
d
ed
in
t
h
e
W
i
n
d
o
w
s
s
y
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te
m
.
Du
e
to
th
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s
s
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e,
th
e
p
r
ep
ar
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n
o
f
th
e
e
n
v
ir
o
n
m
e
n
t
s
d
ep
en
d
s
o
n
th
e
o
p
er
atin
g
s
y
s
te
m
.
B
o
th
L
i
n
u
x
a
n
d
m
ac
O
S
s
y
s
t
e
m
s
r
eq
u
ir
e
o
n
l
y
in
s
tall
in
g
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ten
s
a
to
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l
an
d
ad
d
its
s
o
u
r
ce
p
ath
to
th
e
P
A
T
H
en
v
ir
o
n
m
en
t
v
ar
iab
le.
T
h
at
w
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l
allo
w
u
s
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n
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d
ed
icate
d
co
m
m
a
n
d
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in
t
h
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s
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s
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m
ter
m
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al.
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h
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GNU
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co
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p
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m
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in
d
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s
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ter
u
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w
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to
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et
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SP
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2
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T
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SDK.
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t
in
cl
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d
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all
o
f
t
h
e
r
eq
u
ir
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lib
r
ar
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w
h
ic
h
ar
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h
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h
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r
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elea
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e
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s
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f
o
r
d
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elo
p
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p
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v
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s
ta
lled
.
3.
RE
S
E
ARCH
M
E
T
H
O
D
Ou
t o
f
th
e
E
SP
b
o
ar
d
s
,
th
e
th
r
ee
s
er
ies o
f
th
e
E
SP
m
o
d
u
les c
an
b
e
d
is
tin
g
u
is
h
ed
w
h
ic
h
ar
e
E
SP
8
2
6
6
,
E
SP
3
2
,
an
d
E
SP
3
2
-
S2
.
A
ll
m
o
d
u
les
ar
e
s
y
s
te
m
s
o
n
a
ch
ip
(
So
C
)
th
at
u
s
e
th
e
3
2
-
b
it
Xten
s
a
m
icr
o
co
n
tr
o
ller
s
d
ev
elo
p
ed
b
y
T
en
s
il
ica.
T
h
e
E
SP
8
2
6
6
an
d
E
SP
3
2
m
o
d
u
le
s
u
s
e
th
e
s
a
m
e
L
X6
p
r
o
ce
s
s
o
r
w
h
er
ea
s
t
h
e
n
e
w
es
t
E
SP
3
2
-
S2
u
s
es
t
h
e
L
X7
p
r
o
ce
s
s
o
r
.
T
h
e
E
SP
8
2
6
6
m
o
d
u
le
i
s
th
e
p
o
o
r
est o
u
t o
f
t
h
e
d
is
tin
g
u
i
s
h
ed
s
er
ie
s
.
I
t r
u
n
s
at
8
0
MH
z
o
r
1
6
0
MH
z,
h
as
a
1
0
-
b
it
an
alo
g
to
d
ig
ita
l
co
n
v
er
ter
(
ADC),
a
n
d
1
8
av
ailab
le
p
in
s
.
I
t
i
n
cl
u
d
e
s
p
er
ip
h
er
als
s
u
c
h
a
s
U
AR
T
,
GP
I
O,
I
2
C
,
I
2
S,
SDI
O,
PW
M,
A
D
C
,
a
n
d
SP
I
.
T
h
e
E
SP
3
2
d
i
f
f
er
s
f
r
o
m
a
n
o
ld
er
p
r
ed
ec
ess
o
r
th
at
it
in
clu
d
es
ad
j
u
s
tab
le
clo
ck
f
r
eq
u
e
n
c
y
,
r
an
g
in
g
f
r
o
m
8
0
MH
z
u
p
to
2
4
0
MH
z.
I
t
h
as
3
8
p
in
s
an
d
m
o
r
e
p
er
ip
h
er
als
s
u
ch
as
B
lu
eto
o
th
,
SD
ca
r
d
s
in
ter
f
ac
e,
HAL
L
s
e
n
s
o
r
,
an
d
b
etter
1
2
-
b
it
A
D
C
.
T
h
e
n
e
w
est
s
er
ies
i
s
E
SP
3
2
-
S2
w
h
ich
h
a
s
4
3
GP
I
O
p
in
s
an
d
i
n
clu
d
e
s
d
if
f
er
en
t
p
er
ip
h
er
als.
I
n
th
e
E
SP
3
2
s
er
ies,
th
e
s
ec
u
r
it
y
h
as
b
ee
n
i
m
p
r
o
v
ed
,
b
u
t
it
h
as
b
ee
n
m
o
r
e
r
ef
in
ed
in
th
e
S2
s
er
ies.
E
SP
8
2
6
6
is
w
ea
k
i
n
th
is
r
esp
ec
t,
b
u
t
th
e
n
e
w
est
m
o
d
u
les
p
r
o
v
id
e
f
las
h
en
cr
y
p
tio
n
,
s
ec
u
r
e
b
o
o
t,
s
ig
n
at
u
r
e
v
er
if
icat
io
n
,
an
d
p
r
o
v
id
e
a
d
d
itio
n
al
alg
o
r
ith
m
s
s
u
c
h
as
SH
A
o
r
R
S
A
.
I
n
t
h
is
w
o
r
k
,
t
h
e
E
S
P
8
2
6
6
m
o
d
u
le
in
teg
r
ated
o
n
th
e
W
e
m
o
s
D1
m
in
i
b
o
ar
d
h
as
b
ee
n
test
ed
.
Fig
u
r
e
1
p
r
esen
ts
th
e
elec
tr
ical
w
ir
i
n
g
o
f
th
e
b
o
ar
d
w
it
h
p
ar
ticu
lar
p
er
ip
h
er
als.
T
h
e
en
tire
elec
tr
ical
s
y
s
te
m
cr
ea
tes
a
d
ev
elo
p
m
en
t
b
o
ar
d
th
at
ca
n
b
e
u
s
ed
to
lear
n
an
d
test
w
o
r
k
i
n
g
w
it
h
E
SP
8
2
6
6
m
o
d
u
le.
I
n
o
r
d
er
to
p
er
f
o
r
m
tes
ts
,
t
h
e
f
o
llo
w
i
n
g
b
en
ch
m
ar
k
s
h
a
v
e
b
ee
n
p
r
ep
ar
ed
:
#
1
.
B
lin
k
ed
L
E
D;
#
2
.
Ser
ial
co
m
m
u
n
icatio
n
u
s
in
g
U
A
R
T
;
#
3
.
A
DC
co
n
v
er
s
io
n
w
i
th
s
en
d
in
g
r
ea
d
v
al
u
es t
h
r
o
u
g
h
U
AR
T
;
#
4
.
L
E
D
b
r
ig
h
t
n
ess
co
n
tr
o
l u
s
in
g
P
W
M
co
n
tr
o
lled
b
y
p
o
ten
t
io
m
eter
;
#
5
.
Ser
v
o
m
o
to
r
co
n
tr
o
l u
s
in
g
P
W
M
co
n
tr
o
lled
b
y
p
o
ten
tio
m
eter
;
#
6
.
T
em
p
er
atu
r
e
an
d
h
u
m
id
it
y
m
ea
s
u
r
e
m
e
n
t
w
it
h
DHT
2
2
1
-
w
ir
e
s
e
n
s
o
r
;
#
7
.
C
o
m
m
u
n
ica
tio
n
w
it
h
O
L
E
D
d
is
p
la
y
u
s
i
n
g
I
2
C
p
r
o
to
co
l;
#
8
.
Sim
p
le
w
eb
-
s
er
v
er
.
T
h
e
p
r
e
p
ar
ed
b
en
ch
m
ar
k
s
h
a
v
e
b
ee
n
ch
o
s
e
n
to
u
s
e
d
if
f
er
e
n
t
p
o
p
u
lar
m
o
d
u
le
s
an
d
p
r
o
to
co
ls
w
h
ic
h
allo
w
u
s
to
f
u
ll
y
te
s
t
an
E
SP
8
2
6
6
m
o
d
u
le.
T
h
e
y
h
a
v
e
b
ee
n
r
ea
lized
in
th
e
m
e
n
tio
n
ed
p
r
o
g
r
a
m
m
in
g
la
n
g
u
a
g
e
s
an
d
en
v
ir
o
n
m
e
n
t
s
.
T
o
c
o
m
p
ar
e
th
e
lan
g
u
a
g
es,
t
h
e
d
ed
icate
d
in
d
icato
r
s
h
a
v
e
b
ee
n
u
s
ed
th
at
ar
e:
n
u
m
b
er
o
f
co
d
e
lin
es,
f
las
h
ed
f
ile
s
ize,
f
las
h
i
n
g
d
u
r
atio
n
,
an
d
m
a
x
i
m
u
m
F
r
a
m
es
p
er
Seco
n
d
(
FP
S)
th
at
ca
n
b
e
o
b
tain
ed
o
n
OL
E
D
d
is
p
la
y
.
T
h
e
y
allo
w
j
u
d
g
i
n
g
th
e
d
if
f
er
en
ce
s
m
o
r
e
o
b
j
ec
tiv
el
y
t
h
an
m
e
n
tio
n
i
n
g
t
h
e
ad
v
an
tag
e
s
an
d
d
is
ad
v
an
ta
g
es o
f
a
p
ar
ticu
lar
l
an
g
u
a
g
e.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
7
2
2
-
3221
C
o
m
p
u
t.
Sci.
I
n
f
.
T
ec
h
n
o
l.
,
Vo
l.
2
,
No
.
2
,
J
u
l
y
20
2
1
:
7
7
–
8
6
82
Fig
u
r
e
1
.
E
lectr
ical
cir
cu
it
ap
p
lied
in
test
s
4.
RE
SU
L
T
S
AND
D
I
SCU
SS
I
O
N
T
h
e
test
s
p
er
f
o
r
m
ed
led
to
q
u
a
n
ti
f
ied
v
a
lu
e
s
p
r
esen
ted
in
T
ab
les 1
-
4
.
T
h
e
f
ir
s
t i
n
d
icato
r
,
w
h
ich
is
th
e
n
u
m
b
er
o
f
co
d
e
lin
es,
h
a
s
b
ee
n
p
r
esen
ted
in
T
ab
le
1
.
Dep
en
d
in
g
o
n
t
h
e
p
ar
ticu
lar
lan
g
u
ag
e,
t
h
e
v
al
u
es
ar
e
d
if
f
er
e
n
t.
T
h
e
r
esu
lts
co
n
f
ir
m
th
e
m
ai
n
p
ar
ad
ig
m
o
f
MP
an
d
L
u
a
lan
g
u
a
g
es
to
k
ee
p
co
d
e
as
s
h
o
r
t
as
it
is
p
o
s
s
ib
le.
T
h
e
s
m
alles
t
v
al
u
e
h
as
b
ee
n
r
ea
ch
ed
f
o
r
t
h
o
s
e
t
w
o
lan
g
u
a
g
es.
A
r
d
u
i
n
o
co
r
e
is
ch
ar
ac
ter
ized
b
y
a
f
e
w
m
o
r
e
co
d
e
lin
es
th
a
n
L
u
a
an
d
MP
.
T
h
e
w
o
r
s
t
r
esu
l
ts
ac
h
ie
v
ed
a
C
lan
g
u
a
g
e.
I
t
s
te
m
s
f
r
o
m
a
m
o
r
e
co
m
p
lex
en
v
ir
o
n
m
e
n
t
in
t
h
e
f
o
r
m
o
f
R
T
OS
.
User
s
h
av
e
to
a
d
d
ex
tr
a
lib
r
ar
ies
an
d
d
o
in
itializatio
n
s
o
n
th
eir
o
w
n
.
T
h
er
e
ar
e
n
o
t
d
ed
icate
d
f
u
n
ct
io
n
s
to
in
itial
ize
f
o
r
ex
a
m
p
le
GP
I
O,
b
u
t
o
n
t
h
e
o
th
er
h
a
n
d
,
it
h
a
s
a
b
ig
ad
v
a
n
tag
e.
U
s
er
s
ca
n
in
i
tialize
p
o
r
t
in
a
m
o
r
e
ad
v
an
ce
d
w
a
y
b
ec
au
s
e
th
e
y
ca
n
s
et
u
p
p
r
o
p
er
ties
s
u
ch
as
p
u
llu
p
s
o
r
ex
ter
n
al
in
ter
r
u
p
ts
.
MP
an
d
L
u
a
k
ee
p
co
d
e
v
er
y
s
h
o
r
t
b
u
t
u
s
er
s
h
a
v
e
to
b
ea
r
in
m
i
n
d
th
at
MP
is
n
o
t
s
o
p
o
w
er
f
u
l
li
k
e
L
u
a.
I
n
th
e
ca
s
e
o
f
MP
,
th
e
r
ed
u
ctio
n
o
f
t
h
e
co
d
e
led
to
a
s
lo
w
d
o
w
n
a
n
d
to
ca
u
s
e
tr
o
u
b
les
w
it
h
ti
g
h
t ti
m
in
g
s
.
T
ab
le
1
.
Nu
m
b
er
o
f
lin
es
T
e
st
N
o
.
T
e
st
N
a
me
C
+
+
L
u
a
MP
C
#1
B
l
i
n
k
L
ED
12
12
8
37
#2
S
e
r
i
a
l
8
3
5
32
#3
A
D
C
10
6
8
36
#4
B
r
i
g
h
t
n
e
ss
9
9
6
42
#5
S
e
r
v
o
13
10
7
43
#6
D
H
T
2
2
18
7
11
43
#7
O
L
ED
40
24
20
1
4
0
#8
S
e
r
v
e
r
47
15
15
1
5
0
T
ab
le
2
p
r
esen
ts
th
e
s
ec
o
n
d
in
d
icato
r
w
h
ic
h
is
t
h
e
s
ize
o
f
t
h
e
f
las
h
ed
f
ile.
W
e
o
n
l
y
ch
ec
k
th
e
s
ize
o
f
th
e
f
i
le
w
h
ic
h
m
u
s
t
b
e
f
las
h
ed
ea
ch
ti
m
e
t
h
e
u
s
er
m
ak
e
s
a
ch
an
g
e
i
n
th
e
co
d
e.
T
h
e
an
al
y
s
i
s
co
n
clu
d
es
th
a
t
th
e
less
o
p
ti
m
al
s
o
lu
t
io
n
is
u
s
in
g
th
e
A
r
d
u
in
o
co
r
e.
I
n
th
is
ca
s
e,
MP
an
d
L
u
a
h
av
e
s
i
m
ilar
r
es
u
lts
an
d
th
e
s
cr
ip
ts
ar
e
v
er
y
l
ig
h
t
-
w
ei
g
h
t.
T
h
e
y
b
o
th
o
w
e
it
to
t
h
e
f
ir
m
w
ar
e
w
h
ic
h
i
s
f
las
h
ed
in
to
Flas
h
m
e
m
o
r
y
.
I
n
t
h
e
ca
s
e
o
f
L
u
a
lan
g
u
a
g
e,
t
h
e
f
ir
m
w
ar
e
u
s
ed
d
u
r
in
g
t
h
is
w
o
r
k
h
as
4
9
5
6
1
6
b
y
tes
b
u
t
it
i
n
cl
u
d
es
all
m
o
d
u
les
n
ec
es
s
ar
y
to
i
m
p
le
m
en
t b
e
n
ch
m
ar
k
s
.
W
h
e
n
w
e
ta
k
e
th
e
f
ir
m
w
ar
e
in
to
co
n
s
id
er
atio
n
,
th
e
g
en
er
al
s
ize
w
il
l b
e
b
ig
g
er
th
a
n
Size
r
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Evaluation Warning : The document was created with Spire.PDF for Python.
C
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2
6
6
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OP
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R
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T
h
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o
f
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2
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Flas
h
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L
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MP
C
#1
B
l
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k
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2
6
1
8
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4
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4
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6
6
4
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S
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6
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last
test
w
as
to
c
h
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k
th
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n
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m
b
er
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f
FP
S
t
h
at
ca
n
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y
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g
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L
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p
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–
T
ab
le
5
.
I
t
u
s
e
s
t
h
e
SS
D1
3
0
6
co
n
tr
o
ller
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d
I
2
C
c
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m
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p
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co
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T
h
e
r
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s
ar
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p
r
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n
ted
in
T
ab
le
4
an
d
t
h
e
y
p
r
o
v
e
th
e
th
e
s
is
th
at
MP
is
s
lo
w
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t
h
a
n
o
th
er
s
o
lu
tio
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s
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I
t
allo
w
s
u
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to
g
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8
FP
S
w
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s
A
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d
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ch
es u
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5
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I
n
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at
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t
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lo
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C
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s
e
R
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a
s
to
s
w
itc
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th
r
ea
d
s
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h
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a
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lab
le
lib
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also
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n
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C
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m
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4
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[1
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A
.
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tel,
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De
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No
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CU a
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Ra
sp
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ter
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[2
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J.
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p
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9
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T
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2
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3
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S
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"
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4
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Ra
d
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M
.
Co
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o
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ic
.
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ter
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p
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3
–
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.
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5
]
R.
G
o
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e
tt
e
,
“
A
n
A
n
a
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y
sis a
n
d
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sc
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in
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s o
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l”,
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rleto
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iv
.
2
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0
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.
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6
]
L
.
Bo
g
d
a
n
o
,
R.
Iv
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n
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,
"
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las
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m
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M
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In
ter
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t,
"
2
0
1
9
IEE
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X
XV
III
In
ter
n
a
t
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a
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S
c
ien
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e
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(
ET
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l
g
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2
0
1
9
,
p
p
.
1
-
4.
B
I
O
G
RAP
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S O
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AUTH
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RS
F
il
ip
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k
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Bo
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ra
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ro
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.
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