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SIM900A GSM GPRS Wireless Module


SIM900A Kit Wireless Extension Module GSM GPRS Board With Antenna. NON PTA 

 2,200

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Product Description:

  • SIM900A GSM GPRS Wireless Module
  • Onboard two sets of power interface VCC5 5V power supply, VCC4 interface, 4.8-5.2V power supply, optional power supply self-start (default) and control start.
  • Onboard SMA (default) and IPX mini antenna interface, SIM900A interface retains reset.
  • The size of the module is 49 * 50mm, all new and original equipment.
  • The computer can power the early computer debugging USB module, and there is a very large amount of data under the recommended current of more than 1A.
  • You can set up dozens of MA data in standby to provide 10MA low power sleep and sleep.
  • at Mekatroniks.com

    SIM900A Kit Wireless Extension Module GSM GPRS Board With Antenna.

  • Specification:

  • SIM900A GSM GPRS Wireless Module
  • Serial port circuit: Support 3.3V microcontroller.
    TTL serial port: Supports 3.3V and 5V microcontrollers.
    SIM card circuit: Added SMF05C ESD chip.
    Antenna circuit: ensure short and straight, thus ensuring signal strength.
    PCB display printing mark: Each interface is easy to develop twice, and the SIM900 / A hardware is completely designed according to the design manual.
    Two power interfaces: VCC5, 1A above 5A DC. The computer 5V power supply can use the computer USB early. The DC long data circuit exceeds the recommended 5V1A. VCC4, 4.8-5.2V power supply, same as above, suitable for lithium batteries.
    The control interface described by each pin:
    GND – GND
    VCC_MCU When the SIM900A module communicates with a 5V TTL level, this pin is connected to DC 5V; when SIM900A and 3.3V TTL communication level, this pin is connected to DC 3.3V.
    VCC5 — DC 5V input.
    VCC4 — DC 4.8-5.2 input.
    Onboard Resources:
    Serial circuit (with protection)
    Antenna interface circuit (SMA curved female port)
    SIM card circuit (flip SIM slot)
    4 * 3.5 fixture holes
    SIM900A serial output terminal

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