圖片僅供參考
規格
| 屬性 | 價值 |
| Manufacturer | JLCPCB Assembly |
| Package | SMD-68_24.0X24.0X1.00P |
概述
Equivalent
The SIM900A is a GSM/GPRS module. Equivalent alternatives include:
- SIM800L: Compact, low-cost, GSM-only.
- SIM800H: Enhanced GSM/GPRS with better features.
- SIM808: Adds GPS functionality.
- SIM5320: Supports 3G networks.
- A6/A7: Cheaper, similar GSM/GPRS modules.
- Neoway M590: Basic GSM/GPRS alternative.
For 4G/LTE, consider SIM7600 or BG96. Choose based on network needs and features.
- SIM800L: Compact, low-cost, GSM-only.
- SIM800H: Enhanced GSM/GPRS with better features.
- SIM808: Adds GPS functionality.
- SIM5320: Supports 3G networks.
- A6/A7: Cheaper, similar GSM/GPRS modules.
- Neoway M590: Basic GSM/GPRS alternative.
For 4G/LTE, consider SIM7600 or BG96. Choose based on network needs and features.
Features
The SIM900A is a compact GSM/GPRS module with the following key features:
- Quad-band GSM/GPRS (850/900/1800/1900 MHz) for global coverage.
- GPRS Class 10/8 for data transfer (up to 85.6 kbps).
- Voice & SMS support for calls and text messaging.
- Low power consumption (1.5mA in sleep mode).
- UART & AT command interface for easy control.
- Embedded TCP/IP stack for internet connectivity.
- Operating voltage: 3.4V–4.5V (recommended 4V).
- Temperature range: -40°C to +85°C.
- Compact size (24mm × 24mm × 3mm).
- Supports DTMF, HTTP, and FTP.
Ideal for IoT, remote monitoring, and wireless communication projects.
- Quad-band GSM/GPRS (850/900/1800/1900 MHz) for global coverage.
- GPRS Class 10/8 for data transfer (up to 85.6 kbps).
- Voice & SMS support for calls and text messaging.
- Low power consumption (1.5mA in sleep mode).
- UART & AT command interface for easy control.
- Embedded TCP/IP stack for internet connectivity.
- Operating voltage: 3.4V–4.5V (recommended 4V).
- Temperature range: -40°C to +85°C.
- Compact size (24mm × 24mm × 3mm).
- Supports DTMF, HTTP, and FTP.
Ideal for IoT, remote monitoring, and wireless communication projects.
Pinout
The SIM900A module has 64 pins (32 on each side in a compact LCC package). Key functions include:
- Power (VCC, GND): 3.4V–4.5V input (typical 4V).
- Serial Communication (TXD, RXD): UART for AT commands (3V logic).
- SIM Card Interface (SIM_VCC, SIM_DATA, etc.): Supports 1.8V/3V SIMs.
- Audio (MIC+, MIC−, SPK+, SPK−): For voice calls.
- Network Status (NETLIGHT): Indicates network activity.
- Reset (RST): Active-low reset pin.
- Power Key (PWRKEY): Controls power-on/off.
It supports GSM/GPRS (850/900/1800/1900MHz) for calls, SMS, and data. Pins not listed are reserved or for testing.
- Power (VCC, GND): 3.4V–4.5V input (typical 4V).
- Serial Communication (TXD, RXD): UART for AT commands (3V logic).
- SIM Card Interface (SIM_VCC, SIM_DATA, etc.): Supports 1.8V/3V SIMs.
- Audio (MIC+, MIC−, SPK+, SPK−): For voice calls.
- Network Status (NETLIGHT): Indicates network activity.
- Reset (RST): Active-low reset pin.
- Power Key (PWRKEY): Controls power-on/off.
It supports GSM/GPRS (850/900/1800/1900MHz) for calls, SMS, and data. Pins not listed are reserved or for testing.
Application
The SIM900A is a versatile GSM/GPRS module used in various IoT and communication applications. Key areas include:
1. Remote Monitoring – Environmental sensors, industrial equipment.
2. Telematics – Vehicle tracking, fleet management.
3. Smart Agriculture – Soil moisture, weather monitoring.
4. Home Automation – Security alerts, appliance control via SMS.
5. Payment Systems – Mobile POS terminals.
6. Wearables & Health – Emergency SOS, patient monitoring.
7. Energy Management – Smart meters, grid monitoring.
Its compact design, GSM/GPRS support, and low power consumption make it ideal for wireless connectivity in remote or mobile applications.
1. Remote Monitoring – Environmental sensors, industrial equipment.
2. Telematics – Vehicle tracking, fleet management.
3. Smart Agriculture – Soil moisture, weather monitoring.
4. Home Automation – Security alerts, appliance control via SMS.
5. Payment Systems – Mobile POS terminals.
6. Wearables & Health – Emergency SOS, patient monitoring.
7. Energy Management – Smart meters, grid monitoring.
Its compact design, GSM/GPRS support, and low power consumption make it ideal for wireless connectivity in remote or mobile applications.
Package
The SIM900A module typically comes in a LGA (Land Grid Array) package, which is a compact, surface-mount design. It features 60 pins arranged in a grid, providing robust connectivity for GSM/GPRS applications. The package is designed for easy integration into PCB designs, offering durability and efficient heat dissipation. Its dimensions are approximately 24mm x 24mm x 3mm, making it suitable for space-constrained projects.
