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SIM800A LM317 with Antenna(GSM Finger)- ADIY

SIM800A LM317 with Antenna(GSM Finger)- ADIY

Regular price Rs. 889
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  • This is SIM800A LM317 with Antenna(GSM Finger)- ADIY
  • Quad-band GSM/GPRS module supporting 850/900/1800/1900 MHz bands
  • Low power consumption for efficient operation
  • Enables voice, SMS, and data transmission
  • RS232 interface for easy connection to computers, laptops, or microcontrollers
  • Can be used with USB to Serial connector or RS232 to TTL converter
  • Supports LTE-FDD, LTE-TDD, and GSM frequency bands
  • Operating temperature range: -40°C to +85°C for versatile applications

SIM800A LM317 with Antenna(GSM Finger)- ADIY

The SIM800A Quad-Band GSM/GPRS Module with RS232 Interface is a comprehensive solution for Quad-band GSM/GPRS communication. It comes in an LGA (Land grid array) form factor and offers low power consumption while enabling voice, SMS, and data transmission. This module supports the 850/900/1800/1900 MHz bands.

To establish a connection with a computer, laptop, or microcontroller, the GSM module features an RS232 interface, which can be utilized through either a USB to Serial connector or an RS232 to TTL converter. Communication with the SIM800A module is achieved using AT instructions. The module comes with a SIM cardholder and an SMA antenna connector.

The SIM800A modem consists of a SIM800A GSM chip and an RS232 interface, facilitating easy connections to PCs or laptops via USB to Serial or to microcontrollers using the RS232 to TTL converter. Once the SIM800A modem is connected to the USB to RS232 connector, the correct COM port should be selected by checking the Device Manager of the USB to Serial Adapter.

Next, a serial connection needs to be established between the computer and the microcontroller by using a terminal program such as Putty. The connection should be made to the designated COM port at a baud rate of 9600, which is the default baud rate for the modem. Once the serial connection is established, AT commands can be transmitted. For example, sending the command "ATr" should elicit a response of "OK" or another relevant response from the SIM800A modem, depending on the provided command.

check out : Sim800 GSM-GPRS-Bluetooth Modem


Pinout Of SIM800A LM317 with Antenna


  • Quad Band GSM/GPRS modem
  • Supports LTE-FDD, LTE-TDD, and GSM frequency bands
  • Dual frequency of 900/1800 MHz
  • Operating temperature range: -40°C to +85°C
  • Can be connected to a computer or microcontroller
  • Connection options: USB to Serial connector or RS232 to TTL converter


  • Parking Meter and Taxi Meter
  • For Detection of Navigation

Package Includes:

  • 1 x SIM800A LM317 with Antenna(GSM Finger)- ADIY


Input Voltage 7-12V DC
Module A7670C by SIMCOM
Frequency Bands

LTE-FDD: B1/B3/B5/B8

LTE-TDD: B34/B38/B39/B40/B41

GSM: 900/1800MHz

Temperature GNSS



70 x 46.2 x 14.4mm

Shipping & Returns

  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

For more details, please check our Shipping and Return Policy

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1.What is SIM800A GSM module?

  • The SIM800A is a type of GSM (Global System for Mobile communications) module developed by SIMCOM. It is a compact and low-power module that supports various GSM and GPRS (General Packet Radio Service) bands, making it suitable for use in a wide range of wireless communication applications. The SIM800A GSM module features integrated Bluetooth and FM radio capabilities, as well as a serial interface that allows it to communicate with microcontrollers and other devices.

2.What is the use of SIM800A?

  • The SIM800A GSM module is commonly used in a variety of applications that require low-power wireless communication and connectivity. Some common uses of the SIM800A module include Asset tracking, Remote monitoring and control, SMS and voice communication, Internet connectivity, Portable devices.