73-6 Environmental
consumption as the other modules available. As for the management of the devices, the microcontroller
wa
s
gi
ven
th
e
po
ssibility
to tu
rn
o al
l
ot
her
de
vices
(t
he
te
mperature
se
nsor
an
d
th
e
Bl
uetooth
mo
dule)
.
Ad
ditionally,
sin
ce
bo
th
th
e
mi
crocontroller
an
d
th
e
se
nsor
ca
n
ex
ploit
th
e
ba
ttery
un
til
it de
creases
to
ab
out
2.3 V wh
ile
th
e
Bl
uetooth
mo
dule
re
quires
at le
ast
2.9 V, it wa
s
de
cided
to us
e
a dc
–dc
co
nverter
to pr
ovide
3 V fr
om
vo
ltage
so
urces
be
tween
(s
lightly
mo
re
th
an)
3 an
d
2.3 V. A ch
arge
pu
mp
co
nverter
fr
om
Ma
xim
(M
AX1759)
wa
s
ch
osen
be
cause
it co
uld
su
pply
th
e
cu
rrent
re
quired
by th
e
mo
dule
(7
5
mA
at mo
st)
wh
ile
re
quiring
ve
ry
fe
w
co
mponents
(a
nd
no in
ductors)
. By usi
ng
th
is
co
nverter,
mo
reover,
it
was possibl ...