SIM900A 1800/1900 MHz Wireless Extension Module GSM GPRS Board
SIM900A 1800/1900 MHz Wireless Extension Module GSM GPRS Board
SIM900A 1800/1900 MHz Wireless Extension Module GSM GPRS Board
SIM900A 1800/1900 MHz Wireless Extension Module GSM GPRS Board
SIM900A 1800/1900 MHz Wireless Extension Module GSM GPRS Board
Need Support? Click Here
Free Delivery Above ₹999

Best seller

ThinkRobotics

SIM900A 1800/1900 MHz Wireless Extension Module GSM GPRS Board

SKU: ELC8006

₹ 929.99 ₹ 1,600.00

In stock | Ready to ship

Select variant

Without Soldered Pin
⚠ Only a few left in stock. Order soon.
⏱ High demand right now.
📦 Min order 1
Chat with us on WhatsApp We reply quickly! Contact Us
SIM900A 1800/1900 MHz Wireless Extension Module GSM GPRS BoardWithout Soldered Pin₹ 929.99
Ask AI about this product
Open in ChatGPT Open in Claude Open in Gemini
Features:
  • On board two power supply interface VCC5 5 V VCC4 interface 3.5 power supply. 4.5 V optional power supply of envelope that (default) and control to start
  • On board SMA (default) and IPXmini antenna interface SIM900A reserved interface reset?
  • The size of the module is 49 * 50, all the new and original device.
  • The computer can provide the power supply of the USB debugging module of the computer,
  • A large amount of data under the recommended current condition more than 1 A.
  • Dozens of waiting MA data can be configured to provide
  • Rest, rest of 10 ma of low power. Support 2, 3.4G mobile phone card.
  • Serial port circuit: compatible with 3.3 V single-chip microcomputer
  • Microcomputer with single chip TTL serial port support3.3 and 5 V.
  • The circuit SIM card to increase the SMF05C ESD chip
  • Antenna circuit: guarantees a short and straight, to guarantee the strength of the signal.
  • PCB screen printing brand: each interface, practical development twice,
  • The SIM900 / hardware is completely still in the design when the manual design
  • Two power supply interface: VCC5 5 V DC above 1A!
  • The power supply of the 5 V computer can be the first USB in the computer.
  • Largest DC long data circuit recommended 5V1A.
  • VCC4 3.5. 4.5 V Ibid power supply suitable for lithium battery
  • Control Pin all cables.
  • A TTL level, compatible with 3.3 V and 5 V.
  • The interface of two antennas, the straight head SMA predetermined, the connector for the IPXmini antenna.
  • A form of speech interface, the way it exchanges the microphone.
  • The control interface of each pin Description:
  • GND-GNDSIMR SIM900A RXD TTL level
  • It can not be directly connected to the 232 levelSIMT SIM900A TXD TTL level
  • It can not be connected directly to the 232 levelRST-SIM900A reset
  • Active lowVCC_MCU when the SIM900A module and 5V level TTL communication
  • This pin is connected to DC 5 V;
  • When the communication level of SIM900A and 3.3V TTL ...
  • This pin is connected to DC 3.3 V.
  • VCC5 ---- DC 5 V input?
  • VCC4 ------ DC3.5--4.5 input
  • Integrated resources: serial port circuit (with protection)
  • Antenna interface circuit (SMA curve female port) SIM card circuit
  • (Flip SIM slot) 4 * 3.5 fixture hole 4pcsSIM900A serial port terminal output
Specifications

Resources

Datasheet

Sample Code

Tutorial

 

    What power inputs are available and what is the recommended supply?
    The module provides VCC5 5 V DC input and VCC4 3.5 to 4.5 V input. For reliable operation a 5 V supply of at least 1 A is recommended; USB power from a computer can be used.
    What are the serial interface voltage levels and how should it connect to a microcontroller?
    The serial interface is TTL level and supports 3.3 V and 5 V logic. Do not connect directly to RS232 level devices; use the RXD and TXD pins with appropriate level shifting if needed.
    What antenna connectors are available on the board?
    The board includes an on board SMA antenna interface as default and a reserved IPXmini antenna interface for optional use.
    Is there a SIM card slot and how do I access it?
    Yes, the SIM card circuit uses a flip SIM slot for inserting the SIM card.
    What are the main control pins and their purposes?
    The module exposes GND, RXD, TXD, RST and VCC_MCU for MCU connection. RXD and TXD are TTL level, RS232 level is not supported, RST resets the SIM900A when driven low, and VCC_MCU provides 5 V or 3.3 V depending on the TTL level used.
    A
    Admin
    Welcome to the discussion thread for SIM900A 1800/1900 MHz Wireless Extension Module GSM GPRS Board
    Feel free to ask questions, share tips or report issues.
    Add Post

    For more discussion Click Here

    Discover More In:

    GPS, GSM, RFID → Wireless & IOT →

    Category: View all Breakout Boards

    Fill out the form below and our team will get back to you with bulk pricing.

    Description
    Ask AI about this product
    Open in ChatGPT Open in Claude Open in Gemini
    Features:
    • On board two power supply interface VCC5 5 V VCC4 interface 3.5 power supply. 4.5 V optional power supply of envelope that (default) and control to start
    • On board SMA (default) and IPXmini antenna interface SIM900A reserved interface reset?
    • The size of the module is 49 * 50, all the new and original device.
    • The computer can provide the power supply of the USB debugging module of the computer,
    • A large amount of data under the recommended current condition more than 1 A.
    • Dozens of waiting MA data can be configured to provide
    • Rest, rest of 10 ma of low power. Support 2, 3.4G mobile phone card.
    • Serial port circuit: compatible with 3.3 V single-chip microcomputer
    • Microcomputer with single chip TTL serial port support3.3 and 5 V.
    • The circuit SIM card to increase the SMF05C ESD chip
    • Antenna circuit: guarantees a short and straight, to guarantee the strength of the signal.
    • PCB screen printing brand: each interface, practical development twice,
    • The SIM900 / hardware is completely still in the design when the manual design
    • Two power supply interface: VCC5 5 V DC above 1A!
    • The power supply of the 5 V computer can be the first USB in the computer.
    • Largest DC long data circuit recommended 5V1A.
    • VCC4 3.5. 4.5 V Ibid power supply suitable for lithium battery
    • Control Pin all cables.
    • A TTL level, compatible with 3.3 V and 5 V.
    • The interface of two antennas, the straight head SMA predetermined, the connector for the IPXmini antenna.
    • A form of speech interface, the way it exchanges the microphone.
    • The control interface of each pin Description:
    • GND-GNDSIMR SIM900A RXD TTL level
    • It can not be directly connected to the 232 levelSIMT SIM900A TXD TTL level
    • It can not be connected directly to the 232 levelRST-SIM900A reset
    • Active lowVCC_MCU when the SIM900A module and 5V level TTL communication
    • This pin is connected to DC 5 V;
    • When the communication level of SIM900A and 3.3V TTL ...
    • This pin is connected to DC 3.3 V.
    • VCC5 ---- DC 5 V input?
    • VCC4 ------ DC3.5--4.5 input
    • Integrated resources: serial port circuit (with protection)
    • Antenna interface circuit (SMA curve female port) SIM card circuit
    • (Flip SIM slot) 4 * 3.5 fixture hole 4pcsSIM900A serial port terminal output
    Specifications

    Resources

    Datasheet

    Sample Code

    Tutorial

     

      FAQ
      What power inputs are available and what is the recommended supply?
      The module provides VCC5 5 V DC input and VCC4 3.5 to 4.5 V input. For reliable operation a 5 V supply of at least 1 A is recommended; USB power from a computer can be used.
      What are the serial interface voltage levels and how should it connect to a microcontroller?
      The serial interface is TTL level and supports 3.3 V and 5 V logic. Do not connect directly to RS232 level devices; use the RXD and TXD pins with appropriate level shifting if needed.
      What antenna connectors are available on the board?
      The board includes an on board SMA antenna interface as default and a reserved IPXmini antenna interface for optional use.
      Is there a SIM card slot and how do I access it?
      Yes, the SIM card circuit uses a flip SIM slot for inserting the SIM card.
      What are the main control pins and their purposes?
      The module exposes GND, RXD, TXD, RST and VCC_MCU for MCU connection. RXD and TXD are TTL level, RS232 level is not supported, RST resets the SIM900A when driven low, and VCC_MCU provides 5 V or 3.3 V depending on the TTL level used.
      Reviews
      Forum
      A
      Admin
      Welcome to the discussion thread for SIM900A 1800/1900 MHz Wireless Extension Module GSM GPRS Board
      Feel free to ask questions, share tips or report issues.
      Add Post

      For more discussion Click Here

      Similar Products

      Discover More In:

      GPS, GSM, RFID → Wireless & IOT →

      Category: View all Breakout Boards

      Bulk Order

      Fill out the form below and our team will get back to you with bulk pricing.

      Custom Requirements?

      Meet with our team

      Related products

      Related products

      0106-14

      Waldom Electonics

      0106-14

      ₹ 2,623.53