Package
¾
¾
Feature
¾
¾
e contents:
SIM900A
GS
DOCUMENT
es:
Supply
powe
Onboard
Fea
1.
O
2.
O
3.
O
m
4.
O
5.
3
m
6.
O
7.
O
SIM90
SM
MODEM
TATION
CD.
er:
DC
9V
to
atures:
Onboard
Pow
Onboard
indic
Onboard
prov
manual)
using
Onboard
DB9
pin
male
he
microcontroll
Onboard
Aud
Onboard
PWM
00/900
with
Antenn
12V
(DC
9V
t
wer
ON
&
Net
cator
LED
&
vision
to
sele
g
the
jumper
9
connector
f
eader
(TTL)
in
er.
io
(speaker
a
M
and
ADC
c
0AGSM
na.
typical)
NOT
twork
indica
buzzer
for
in
ect
the
powe
r
with
onboa
for
connectin
nterface
for
c
and
microph
channels(SIM
M MO
TE:
Recomme
tor
LED
ncoming
mes
er
on
of
SIM9
ard
switch
fo
ng
modem
d
connecting
S
hone)
interfa
M900A
PWM
ODEM
ended
powe
ssage
&
call
i
900A
(either
r
manual
PO
irectly
to
com
SIM900
direc
ce
pins.
and
ADC
PIN
M
r
supply
DC
indication
automatic
o
OWER
‐
ON.
mputers
seri
ctly
with
NS)
9V/3A
or
ial
port.
All manuals and user guides at all-guides.com
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