SIM 900A GSM/ GPRS Module with Antenna

LKR 1,950.00

SIM900A sim900 V4.0 Kit Wireless Extension Module GSM GPRS Board + Antenna

  • Two power supply interfaces: VCC5, 5V DC above 1A.
  • 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.

Out of stock


  • Two power supply interfaces: VCC5, 5V DC above 1A.
  • 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.

The control interface of each pin description

  • GND – GND
  • SIMR SIM900A RXD, TTL level, cannot be directly connected to the 232 level
  • SIMT SIM900A TXD, TTL level, cannot 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

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 4pcs
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