• SIM900A GSM GPRS Wireless Extension Module

  • Free Shipping ( from China ) PRODUCT ID: ADM049
  • USD

    $23.99

    $28.99

  • QTY
-+    可购数量:198
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QTYPRICE
5-10$22.59
11-20$21.99
21-100$19.99
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Features




1.The onboard two set power supply interface VCC5 5V power supply, VCC4 interface, 3.5--4.5V power supply, optional power on self starting (default) and control start. The onboard SMA (default) and IPXmini antenna interface, SIM900A interface reserved reset. The size of the module is 49*50, all the new and original device. The computer can give early computer debugging USB module power supply,
2. Standby dozens of MA data can be set to provide dormancy, dormancy of 10MA low power. Support 2, mobile phone 3,4G card. The serial port circuit: support for 3.3V single chip microcomputer. TTL serial port support
3. The control interface of each pin description:
GND - GND
SIMR SIM900A RXD, TTL level, can not be directly connected to the 232 level
SIMT SIM900A TXD, TTL level, can not be directly connected to the 232 level
RST - SIM900A reset, active low
VCC_MCU when the SIM900A module and 5V TTL level communication, this pin is connected to DC 5V; when the level of communication of SIM900A and 3.3V TTL, this pin is connected to DC 3.3V.
VCC5----DC 5V input.
VCC4------DC3.5--4.5 input


Specifications



Size:49mm x 47mm


Net Weight:28g
Weight: 38g


Package include




1 x SIM900A V4.0 kit
1 x Power Cable
1 x Antenna

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