Reference: RBD-2306
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The SIM800A Wireless Module is a compact, industrial-grade GSM/GPRS communication module that supports quad-band GSM900/1800MHz operation. It provides reliable GSM voice, SMS, and GPRS data transmission, making it ideal for a wide range of remote communication and IoT applications.
This module is optimized with an efficient power design, ESD protection, reset circuitry, and dual antenna options for stable long-term operation. It is fully compatible with both 3.3V and 5V microcontrollers such as STM32, 8051, MSP430, and Arduino without the need for additional level shifting.
The SIM800A Wireless Module is a compact, industrial-grade GSM/GPRS communication module that supports quad-band GSM900/1800MHz operation. It provides reliable GSM voice, SMS, and GPRS data transmission, making it ideal for a wide range of remote communication and IoT applications.
This module is optimized with an efficient power design, ESD protection, reset circuitry, and dual antenna options for stable long-term operation. It is fully compatible with both 3.3V and 5V microcontrollers such as STM32, 8051, MSP430, and Arduino without the need for additional level shifting.
Quad-band GSM: GSM900/1800MHz
Communication Functions: Voice calls, SMS (SMS/MMS), GPRS data (transparent mode, domain name resolution, IP mode)
Extra Functions: DTMF decoding, TTS (text-to-speech, optional), Bluetooth (optional)
Serial Port: TTL level, adaptive to both 3.3V and 5V systems
Power Supply: 5V–18V DC input, requires ≥1.5A current for reliable data transmission
Low Power Consumption:
Standby: ~30mA
Sleep mode: ~10mA
Protection Circuits:
Serial port protected by TVS diodes and magnetic beads against surge/high voltage
SIM card circuit with SMF05C ESD protection
Antenna Options:
SMA antenna interface
IPX mini antenna interface (unsoldered by default)
PCB Design: Screen-printed labels for easy secondary development, optimized per SIM900A/SIM800A hardware design manual
Reset Function: Dedicated reset pin for hardware recovery
Remote monitoring and telemetry
Smart home and building automation
Remote meter reading systems
IoT and M2M communication projects
Automotive communication equipment
Module: SIM800A GSM/GPRS module
Frequency Bands: GSM 900/1800MHz
Supply Voltage: 5–18V DC (recommended ≥1.5A for stable operation)
Current Consumption:
Standby: ~30mA
Sleep: ~10mA
Transmission: up to 2A peak
Communication Interfaces: UART (TTL level, 3.3V/5V compatible)
Supported Protocols: SMS, MMS, HTTP, FTP, PPP dialing, GPRS
Antenna Connectors: SMA & IPX (optional)
SIM Slot: Micro SIM card deck
Reset Pin: Available
PCB Size: Compact design with clear silk-screen labels
1 × SIM800A GSM/GPRS Wireless Module
This module is plug-and-play for most microcontrollers and development boards, requiring only a stable 5–18V power supply and UART connection.
Specific References
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Reference: RBD-2306
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The SIM800A Wireless Module is a compact, industrial-grade GSM/GPRS communication module that supports quad-band GSM900/1800MHz operation. It provides reliable GSM voice, SMS, and GPRS data transmission, making it ideal for a wide range of remote communication and IoT applications.
This module is optimized with an efficient power design, ESD protection, reset circuitry, and dual antenna options for stable long-term operation. It is fully compatible with both 3.3V and 5V microcontrollers such as STM32, 8051, MSP430, and Arduino without the need for additional level shifting.
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