Looking for Sim800a Module? SIM800A Quad Band GSM/GPRS Module with RS232 Interface is available at Zbotic with fast shipping across India.
The SIM800A Quad-Band GSM/GPRS Module with RS232 Interface is a complete Quad-band GSM/GPRS solution in an LGA(Land grid array) type which can be embedded in the customer applications. SIM800A support Quad-band 850/900/1800/1900 MHz, it can transmit Voice, SMS, and data information with low power consumption.
With tiny size of 100 x 53 x 15 mm, it can fit into slim and compact demands of custom design. Featuring and Embedded AT, it allows total cost savings and fast time-to-market for customer applications.
The SIM800A modem has a SIM800A GSM chip and RS232 interface while enables easy connection with the computer or laptop using the USB to the Serial connector or to the microcontroller using the RS232 to TTL converter. Once you connect the SIM800A modem using the USB to RS232 connector, you need to find the correct COM port from the Device Manager of the USB to Serial Adapter.
Then you can open Putty or any other terminal software and open a connection to that COM port at 9600 baud rate, which is the default baud rate of this modem. Once a serial connection is open through the computer or your microcontroller you can start sending the AT commands. When you send AT commands for example “ATr” you should receive back a reply from the SIM800A modem saying “OK” or other response depending on the command sent.
Application :
- Remote Data Monitor and Control.
- Water, gas, and oil flow metering.
- AMR (automatic meter reading).
- Power station monitoring and control.
- Remote POS (point of sale) terminals.
- Traffic signals monitor and control.
- Fleet management.
- Power distribution network supervision.
- Central heating system supervision.
- The weather station data transmission.
- Hydro-logic data acquisition.
- Vending machine.
- Traffic info guidance.
- Parking meter and Taxi Monitor.
- Telecom equipment supervision (Mobile base station, microwave or optical relay station).
Features :
- Quad-band 850/900/1800/1900MHz.
- GPRS class 2/10.
- Control via AT commands (3GPP TS 27.007, 27.005 and SIMCOM enhanced AT command set).
- High-Quality Product (Not hobby grade).
- 5V interface for direct communication with MCU kit.
- Configurable baud rate.
- Built-in SIM Cardholder.
- Built-in Network Status LED.
- Inbuilt Powerful TCP/IP protocol stack for internet data transfer over GPRS.
- Low power.
Package Includes :
1 x SIM800 A Quad-Band GSM/GPRS Modem with RS232 Interface.
4 x Female Header Connector.
About Sim800a Module
SIM800A Quad Band GSM/GPRS Module with RS232 Interface is available at Zbotic, India’s trusted electronics and robotics store. Manufactured by Generic, this product is designed for hobbyists, students, and professionals working on electronics, robotics, and DIY projects.
Product Details
- Brand: Generic
- SKU: AI1615
- Category: GPRS and GSM Modules
Why Buy from Zbotic?
Zbotic offers a wide range of electronics components, development boards, sensors, and robotics parts. All products are quality-checked and shipped within 24 hours. Free shipping on qualifying orders. We offer COD (Cash on Delivery) and secure online payment options. Our customer support team is available to help with technical queries about Sim800a Module and other products.
Applications
Sim800a Module can be used in a variety of projects including Arduino projects, Raspberry Pi builds, drone assembly, 3D printing, IoT applications, and educational experiments. Whether you are a beginner or an advanced user, this component provides the reliability and performance you need. Order your Sim800a Module today and start building.
SIM800A Quad Band GSM/GPRS Module with RS232 Interface Overview
The SIM800A Quad Band GSM/GPRS Module with RS232 Interface is a compact communication board that enables voice, SMS and data transmission over GSM networks. Designed for embedded applications, it operates on quad-band frequencies and offers an RS232 port for easy integration with microcontrollers, PCs or industrial controllers.
Key Features of SIM800A Quad Band GSM/GPRS Module with RS232 Interface
- Supports quad-band GSM/GPRS: 850/900/1800/1900 MHz for global compatibility
- GPRS Class 2/10 for efficient packet data transmission
- RS232 UART interface with configurable baud rate for seamless host communication
- Built-in SIM card holder and network status LED indicator
- Low power consumption design, ideal for battery-powered applications
- Control via standard 3GPP AT commands (TS 27.007, 27.005) and SIMCOM enhanced set
- Compact LGA module (100 × 53 × 15 mm) fits slim custom enclosures
- Genuine product with fast shipping from Zbotic across India
Applications and Use Cases
- Remote telemetry and environmental monitoring stations
- Vehicle tracking and fleet management devices
- Security alarm panels with SMS alerts
- Point-of-sale (POS) terminals and vending machines
- Industrial automation and SCADA communication links
- Home automation projects requiring GSM connectivity
How to Use SIM800A Quad Band GSM/GPRS Module with RS232 Interface
To begin, insert a valid GSM SIM into the onboard holder and supply 9–12 V DC to the module’s power pins. Connect the RS232 TX/RX pins to your host device or a USB-to-RS232 adapter, then configure the matching baud rate. Issue basic AT commands (e.g., AT+CPIN?, AT+CREG?) via a serial terminal to register on the network, and use SMS or GPRS commands (AT+CMGS, AT+CGATT) to transmit messages or data.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
What input voltage does the SIM800A module require?
The SIM800A module requires a stable 9 V to 12 V DC input. Ensure your power supply can deliver at least 2 A peak current during GSM transmission bursts.
How do I establish serial communication with the module?
Use the RS232 interface pins TXD and RXD. Connect them to your host’s serial port or a USB-to-RS232 adapter. Set the module’s baud rate (e.g., 9600 bps) via AT+IPR and communicate using standard AT commands.
Which GSM bands are supported by this module?
The SIM800A supports four bands: 850 MHz, 900 MHz, 1800 MHz and 1900 MHz. It automatically selects the optimal band based on network availability.
Technical Specifications
| Model | SIM800A |
|---|---|
| Interface / Protocol | RS232 |
| SKU | AI1615 |
| Weight | 0.059 kg |
| Availability | Out of Stock |
Applications & Use Cases
The SIM800A Quad Band GSM/GPRS Module with RS232 Interface is a versatile gprs and gsm modules used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
- Integrating into a custom electronics project
- Learning and experimenting with circuits
- Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components




Varun Bisht (verified owner) –
Great SIM800A Quad Band GSM/GPRS Module with. Using in my vehicle tracking system. Works flawlessly.
Bhavna Banerjee (verified owner) –
Excellent SIM800A Quad Band GSM/GPRS Module with! Range is impressive and connection is stable.
Darshan Saini (verified owner) –
Decent SIM800A Quad Band GSM/GPRS Module with. Connection is stable indoors. Outdoor range slightly less than expected.
Arjun Dave (verified owner) –
Decent SIM800A Quad Band GSM/GPRS Module with. Connection is stable indoors. Outdoor range slightly less than expected.
Suresh Chopra (verified owner) –
Love this SIM800A Quad Band GSM/GPRS Module with. Integrated it with my Arduino in no time. Excellent documentation.
Arjun Desai (verified owner) –
Perfect SIM800A Quad Band GSM/GPRS Module with for wireless communication. Range exceeds the specifications.
Ashish Bhandari (verified owner) –
Perfect SIM800A Quad Band GSM/GPRS Module with for wireless communication. Range exceeds the specifications.
Krishna Luthra (verified owner) –
Excellent SIM800A Quad Band GSM/GPRS Module with! Range is impressive and connection is stable.
Paras Vyas (verified owner) –
Outstanding! This SIM800A Quad Band GSM/GPRS Module with made my IoT mesh network project possible. Highly recommended.
Nikita Dubey (verified owner) –
This SIM800A Quad Band GSM/GPRS Module with is reliable and consistent. Using it for long-range data transfer.
Arun Shah –
Average SIM800A Quad Band GSM/GPRS Module with. Works but range is less than advertised in my environment.
Lakshya Sharma (verified owner) –
This SIM800A Quad Band GSM/GPRS Module with is reliable and consistent. Using it for long-range data transfer.
Rakesh Trivedi (verified owner) –
Great quality SIM800A Quad Band GSM/GPRS Module with. Data transfer is reliable with no packet loss.
Ankur Saini (verified owner) –
Outstanding! This SIM800A Quad Band GSM/GPRS Module with made my IoT mesh network project possible. Highly recommended.