SIM900A V4.0 Kit Wireless Extension Module GSM GPRS Board Antenna
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![SIM900A GSM module board kit front view]()
![SIM900A GSM module with GPRS antenna]()
![SIM900A GSM module V4.0 wireless extension]()
![SIM900A GSM module Arduino wiring diagram]()
It features an onboard SMA antenna interface (default) along with an additional IPX mini connector, while the SIM900A reset interface remains reserved for custom control needs. Because the module can be powered through a USB source during development, early debugging becomes simple and efficient. Furthermore, it is recommended to use a power supply rated above 1A to handle larger data loads consistently.
Its standby current remains in the tens of milliamps, and the dormancy mode significantly reduces consumption to as low as 10mA. Additionally, it supports 2G networks while accepting 3G and 4G SIM cards from mobile operators, ensuring greater flexibility. The serial port circuit is compatible with both 3.3V and 5V microcontrollers, which makes this sim900a gsm module even more versatile for development environments. For projects that require clear interface markings or users comparing gsm module sim900a price, the PCB screen printing ensures easy secondary development. This makes it suitable for IoT experiments, wireless automation, and sim900a gsm module arduino integrations.
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SIM900A V4.0 Kit Wireless Extension Module GSM GPRS Board Antenna
Available:Out of Stock
- Product SKU: KG755
₹ 349
₹ 449
Specification
Description
SIM900A V4.0 Kit Wireless Extension Module GSM GPRS Board Antenna
The sim900a gsm module is a compact and reliable wireless extension kit designed for GSM/GPRS communication, and it supports stable connectivity across multiple power configurations. This module includes VCC5 (5V) and VCC4 (3.5–4.5V) interfaces, making it suitable for diverse embedded applications. Moreover, users searching for gsm module sim900a price or planning integration with embedded boards will find it ideal due to its efficient design and durable hardware. Since it performs well with microcontrollers and IoT systems, it naturally fits into sim900a gsm module arduino projects.It features an onboard SMA antenna interface (default) along with an additional IPX mini connector, while the SIM900A reset interface remains reserved for custom control needs. Because the module can be powered through a USB source during development, early debugging becomes simple and efficient. Furthermore, it is recommended to use a power supply rated above 1A to handle larger data loads consistently.
Its standby current remains in the tens of milliamps, and the dormancy mode significantly reduces consumption to as low as 10mA. Additionally, it supports 2G networks while accepting 3G and 4G SIM cards from mobile operators, ensuring greater flexibility. The serial port circuit is compatible with both 3.3V and 5V microcontrollers, which makes this sim900a gsm module even more versatile for development environments. For projects that require clear interface markings or users comparing gsm module sim900a price, the PCB screen printing ensures easy secondary development. This makes it suitable for IoT experiments, wireless automation, and sim900a gsm module arduino integrations.
Technical Details
- Frequency bands: Dual-band
- GPRS connectivity: 90dB, GPRS multi-slot class 10 (default), class 8 (option)
- On-Off Button: Yes
- Operating Temperature Range: -30 to 80 ºC
- Supply Voltage:
- VCC5: DC 5V input
- VCC4: DC 3.5 – 4.5V input
- Dimensions (LxW): 50x50mm (approx)
- Weight: 22g
Features
- USB power support for early computer debugging.
- Recommended current: Above 1A for stable high-data operations.
- Standby current: Tens of mA.
- Dormancy mode: Only 10mA power usage.
- Accepts 2G, 3G, and 4G SIM cards.
- Compatible with 3.3V microcontrollers.
- TTL serial port supports both 3.3V and 5V MCU systems.
- SIM circuit includes SMF05C ESD protection.
- Short direct antenna design for optimal signal strength.
- Clear PCB labeling for easy development.
- Follows SIM900/A hardware manual specifications.
- Power Interfaces: VCC5 (5V DC, >1A) & USB power support.
- VCC4: 3.5–4.5V for lithium battery operation.
- All control pins are easily accessible.
- TTL compatible with 3.3V / 5V.
- Two antenna interfaces available.
- Default SMA straight head.
- Supports IPX mini connector.
- Includes one speech interface.
- Includes one microphone interface.
Onboard Resources
- Serial port circuit (with protection)
- Antenna interface circuit (SMA bend female port)
- SIM card circuit (flip SIM slot)
- 4×3.5mm fixture holes
- SIM900A serial port output terminal
Pin Description
- GND – Ground
- SIMR – SIM900A RXD, TTL level
- SIMT – SIM900A TXD, TTL level
- RST – SIM900A reset, active low
- VCC_MCU – 5V TTL communication
- VCC_MCU – 3.3V TTL communication
- VCC5 – DC 5V input
- VCC4 – DC 3.5–4.5V input
- Serial port circuit (protected)
- Antenna interface circuit
- SIM card circuit
Applications :
- Wireless GSM/GPRS communication
- Remote data transmission
- IoT applications
- Home automation
- GPS tracking systems
- Smart meters
- Industrial control
- Wireless security systems
- SMS and call-based control
- Vehicle tracking and fleet management
Integration with Arduino
Integration with Raspberry Pi
Physical Attributes
- L x W (mm): 49 x 47
- Weight (gm): 22
Package Includes
- 1 x SIM900A V4.0 Kit Wireless Extension Module GSM GPRS Board Antenna
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