SIM900A Wireless GSM GPRS Module
₹1,357.00 (Including GST)
₹1,150.00 ( + ₹207.00 GST)
Features:
- 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 IPX mini 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,
a very large amount of data under the condition of the recommended current more than 1A. - 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.
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Description
Specifications:
- 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 IPX mini 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,
a very large amount of data under the condition of the recommended current more than 1A. - 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 support3.3 and 5V single chip microcomputer.
- The SIM card circuit to increase the SMF05C ESD chip.
- Antenna circuit: guarantee short and straight, so as to ensure the signal strength.
- PCB display screen printing mark: each interface, convenient development two times,
the SIM900/A hardware is completely follow the design when the design manual. - Two power supply interface: VCC5, 5V DC above 1A.
- Computer 5V power supply can be early computer USB.
- DC long data circuit over larger recommended 5V1A.
- VCC4, 3.5–4.5V power supply, ibid., suitable for lithium battery.
- Control pin all leads.
- A TTL level, compatible with 3.3V and 5V.
- The two antenna interface, the default SMA straight head, connector for IPXmini antenna.
- One way of speech interface, the way Mike interface.
Pin Description:
- GND – GNDSIMR SIM900A RXD, TTL level,
- can not be directly connected to the 232 levelSIMT SIM900A TXD, TTL level,
- can not be directly connected to the 232 levelRST – SIM900A reset,
- active lowVCC_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 - Onboard Resources: Serial port circuit(with protection)
- Antenna interface circuit(SMA bend female port)SIM card circuit
- (flip SIM slot)4*3.5 fixture hole 4pcsSIM900A serial port output terminal
- Size:49mm x 47mm
- Net Weight:28gWeight: 38g
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