SIM900A V4.0 Kit Wireless Extension Module GSM GPRS Board with Antenna is based on SIM900A chip having onboard two set power of supply interface namely VCC5 5V power supply, VCC4 interface, 3.5–4.5V power supply, optional power on self-starting (default), and control start. The onboard SMA (default) and IPXmini antenna interface, SIM900A interface reserved reset. The computer can give early computer debugging USB module power supply, a very large amount of data under the condition of the recommended current more than 1A. Standby dozens of MA data can be set to provide dormancy, dormancy of 10MA low power. Support 2G, mobile phone 3,4G card.
The serial port circuit can support for 3.3V single-chip microcomputer. TTL serial port support 3.3 and 5V single-chip microcomputer. The SIM card circuit to increase the SMF05C ESD chip. Antenna circuit guarantee short and straight so as to ensure the higher signal strength.
Features:
- The computer can give early computer debugging USB module power supply, a very large amount of data under the condition of the recommended current more than 1A. Standby dozens of MA data can be set to provide dormancy, dormancy of 10MA low power. Support 2, mobile phone 3,4G card.
- The serial port circuit: support for 3.3V single chip microcomputer. TTL serial port support 3.3 and 5V single chip microcomputer.
- The SIM card circuit to increase the SMF05C ESD chip.
- Antenna circuit: guarantee short and straight, so as to ensure the signal strength.
- PCB display screen printing mark: each interface, convenient development two times, the SIM900/A hardware is completely follow the design when the design manual.
- Two power supply interface: VCC5, 5V DC above 1A. Computer 5V power supply can be early computer USB. DC long data circuit over larger recommended 5V1A. VCC4, 3.5–4.5V power supply, ibid., suitable for lithium battery.
- 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.
Specifications:
| Frequency bands | Dual-band |
| GPRS connectivity | 90dBGPRS multi-slot class 10 (default) , GPRS multi-slot class 8 (option) |
| On-Off Button | Yes |
| Operating Temperature Range | -30 to 80 ºC |
| Supply Voltage | VCC5 : DC 5V input.
VCC4 : DC3.5 – 4.5 input |
| Dimensions (LxW) | 49x47mm (approx) |
| Weight (gm) | 28 |
Onboard Resources:
- Serial port circuit(with protection)
- Antenna interface circuit(SMA bend female port)
- SIM card circuit (flip SIM slot)
- 4×3.5mm fixture hole 4pcs
- SIM900A serial port output terminal
Pin Description:
- GND – GNDSIMR SIM900A RXD, TTL level,
- can not be directly connected to the 232 level SIMT SIM900A TXD, TTL level,
- can not 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
Package Includes:
- 1 x SIM900A V4.0 Kit Wireless Extension Module GSM GPRS Board with Antenna.
Technical Specifications
| Model | SIM900A |
|---|---|
| SKU | AI4227 |
| Weight | 0.03 kg |
| Availability | In Stock |
Applications & Use Cases
The SIM900A V4.0 Kit Wireless Extension Module GSM GPRS Board Antenna 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
Vipin Shetty –
Good SIM900A V4.0 Kit Wireless Extension Module. Quality is fine for prototyping. Some colors are hard to distinguish.
Aman Choudhury (verified owner) –
Nice SIM900A V4.0 Kit Wireless Extension Module. Connections are reliable. Length is adequate for breadboard use.
Sarika Tandon –
This SIM900A V4.0 Kit Wireless Extension Module is exactly what I needed. Connections are solid and reliable.
Sanju Kachhwha (verified owner) –
Best price best product
Ashwin Kamath (verified owner) –
Excellent SIM900A V4.0 Kit Wireless Extension Module! Good quality connections, no loose wires. Perfect for prototyping.
Urmi Bajaj (verified owner) –
Average SIM900A V4.0 Kit Wireless Extension Module. Works for basic prototyping but connector quality could be better.
Ananya Verma –
Average SIM900A V4.0 Kit Wireless Extension Module. Works for basic prototyping but connector quality could be better.
Saurabh Srivastava –
Superb SIM900A V4.0 Kit Wireless Extension Module! Using these in all my Arduino projects. Very durable.
Lakshmi Kamath (verified owner) –
Love this SIM900A V4.0 Kit Wireless Extension Module. Insulation is good quality and the gauge is perfect.
Daksh Kumar (verified owner) –
Superb SIM900A V4.0 Kit Wireless Extension Module! Using these in all my Arduino projects. Very durable.
Vidya Thakur (verified owner) –
Love this SIM900A V4.0 Kit Wireless Extension Module. Insulation is good quality and the gauge is perfect.
Harshit Goyal (verified owner) –
Superb SIM900A V4.0 Kit Wireless Extension Module! Using these in all my Arduino projects. Very durable.
Karan Choudhury (verified owner) –
Decent SIM900A V4.0 Kit Wireless Extension Module. Works well. Wish there were more of each color in the pack.
Kiara Vyas (verified owner) –
Perfect SIM900A V4.0 Kit Wireless Extension Module for my lab. Organized my workbench with these. Great purchase.
Devansh Dhillon (verified owner) –
This SIM900A V4.0 Kit Wireless Extension Module is essential for any electronics workbench. Good quality at great price.
Sandeep Sen (verified owner) –
This SIM900A V4.0 Kit Wireless Extension Module is essential for any electronics workbench. Good quality at great price.
Meera Negi (verified owner) –
Great SIM900A V4.0 Kit Wireless Extension Module. Bought in bulk for my electronics lab. Excellent value.
Anand Naidu (verified owner) –
Perfect SIM900A V4.0 Kit Wireless Extension Module for my lab. Organized my workbench with these. Great purchase.
Vansh Hegde (verified owner) –
Very satisfied with this SIM900A V4.0 Kit Wireless Extension Module. Connectors grip well and don’t fall out.
Sanju Kachhwha (verified owner) –
Best product at best price
Girish Mukherjee (verified owner) –
Perfect SIM900A V4.0 Kit Wireless Extension Module for my lab. Organized my workbench with these. Great purchase.
Ishaan Kulkarni –
Nice SIM900A V4.0 Kit Wireless Extension Module. Connections are reliable. Length is adequate for breadboard use.
Aryan Kulkarni (verified owner) –
This SIM900A V4.0 Kit Wireless Extension Module is exactly what I needed. Connections are solid and reliable.
Mayank Bisht (verified owner) –
Nice SIM900A V4.0 Kit Wireless Extension Module. Connections are reliable. Length is adequate for breadboard use.
Pranav Verma (verified owner) –
Great quality SIM900A V4.0 Kit Wireless Extension Module. Fits perfectly on my breadboard. Color coded which helps a lot.
Ishan Hegde –
Average SIM900A V4.0 Kit Wireless Extension Module. Works for basic prototyping but connector quality could be better.
Hemant Parekh (verified owner) –
Great quality SIM900A V4.0 Kit Wireless Extension Module. Fits perfectly on my breadboard. Color coded which helps a lot.
Mahammad Saif Shaik (verified owner) –
Chaitanya Zagade (verified owner) –
Shruti Saini (verified owner) –
This SIM900A V4.0 Kit Wireless Extension Module is essential for any electronics workbench. Good quality at great price.
Shantanu Rote (verified owner) –
Product is good but Prices slightly high
Akash Malhotra (verified owner) –
Perfect SIM900A V4.0 Kit Wireless Extension Module for my lab. Organized my workbench with these. Great purchase.
Jayesh Reddy (verified owner) –
This SIM900A V4.0 Kit Wireless Extension Module is exactly what I needed. Connections are solid and reliable.
Shruti Khanna (verified owner) –
Great SIM900A V4.0 Kit Wireless Extension Module. Bought in bulk for my electronics lab. Excellent value.
Tarun Chauhan –
Excellent SIM900A V4.0 Kit Wireless Extension Module! Good quality connections, no loose wires. Perfect for prototyping.
Advik Chopra –
Excellent SIM900A V4.0 Kit Wireless Extension Module! Good quality connections, no loose wires. Perfect for prototyping.
Saurabh Goyal –
Great quality SIM900A V4.0 Kit Wireless Extension Module. Fits perfectly on my breadboard. Color coded which helps a lot.
Pooja Trivedi (verified owner) –
Great SIM900A V4.0 Kit Wireless Extension Module. Bought in bulk for my electronics lab. Excellent value.