Key facts
- Manuals
- 13
- Models
- 5
- Languages
- ZH · EN
- Last added
- 2026-09-29
SimCom models by category
Featured SimCom manuals

SIMCom SIM68VB Beidou Navigation Module Hardware Design Manual
The SIM68VB hardware design manual describes the module’s interfaces, electrical and RF characteristics, mechanical dimensions, and recommended PCB layout. It provides detailed schematics, pin definitions, and application examples for integrating the module into positioning products.
The document also includes reliability information, ESD handling, packaging details, and reference designs, helping engineers develop compliant and robust navigation solutions. This manual is written in Chinese.
Covers: Introduction · SIM68VB Overview · Package Information · Application Introduction · Electrical, Reliability and RF Characteristics · Manufacturing

SIMCom SIM5210 AT Commands Set Manual
The document presents the complete AT command set for the SIM5210 module, covering general commands, call control, SMS handling, network services, and TCP/IP functions. It includes command syntax, expected responses, and sample usage for developers and integrators.
Each section details a specific command group, such as manufacturer identification, voice call control, SMS management, and packet data operations, with references to relevant 3GPP specifications. The manual also supplies contact information for SIMCom support.
Covers: General Notes · Introduction · AT Interface Synopsis · General Commands · Call Control Commands · SMS Related Commands

SIMCom SIM340 Hardware Design Manual
The SIM340 Hardware Design Manual describes the key features, functional diagram, and evaluation board of the SIM340 module. It includes detailed sections on application interfaces, power supply considerations, and operating modes such as sleep and power‑saving.
The document also contains extensive pin‑out tables, mechanical dimensions, antenna installation guidance, and electrical reliability data. Contact information for SIMCom is provided at the end of the manual.
Covers: Introduction · Key Features · Functional Diagram · Application Interface and Pin Description · Power Supply and Power Saving Modes · Serial and Audio Interfaces

SIMCom SIM300 Hardware Design Manual
This hardware design guide is intended to help engineers integrate the SIM300 module into their products. It offers application‑specific information, pin‑out tables, power‑supply recommendations, and mechanical drawing details.
The document includes sections on key features, functional diagrams, power‑saving modes, serial and audio interfaces, antenna installation, electrical ratings, and mechanical dimensions, along with contact information for SIMCom support.
Covers: Introduction · Key Features · Functional Diagram · Pin Description · Power Supply and Power Saving · Serial Interfaces
Latest SimCom manuals
SIMCom SIM68VB Beidou Navigation Module Hardware Design Manual
Application Note 35 pages · 2.4 MB · ZHHardware design guide for the SIMCom SIM68VB Beidou/GPS dual‑mode navigation module.
SIMCOM Development Kit Manual SIM5218_EVB_UGD_V1.01
This is the user guide for SIM5218 EVB.
SIMCom SIM5210 AT Commands Set Manual
Programming Manual 126 pages · 522 KB · ENThis manual provides the AT command reference for the SIMCom SIM5210 module, including syntax, responses, and usage examples.
SIMCom SIM340 Hardware Design Manual
User Manual 69 pages · 2 MB · ENThis manual provides hardware design information, pin assignments, power and interface specifications for the SIMCom SIM340 module.
SIMCom SIM300 Hardware Design Manual
User Manual 68 pages · 2 MB · ENThe SIMCom SIM300 hardware design manual provides detailed specifications, pin descriptions, mechanical dimensions, and interface guidelines for the module.
SIMCom SIM340C Hardware Design
Application Note 69 pages · 2.2 MB · ENThe SIMCom SIM340C Hardware Design guide provides detailed hardware interface specifications, mechanical dimensions, and power management information for…
SIMCom SIM548C Hardware Design Guide
Application Note 93 pages · 3.2 MB · ENThis hardware design guide provides specifications, pin descriptions, power and interface details for the SIMCom SIM548C module.
SIMCom SIM802 Hardware Design Manual
User Manual 73 pages · 2.1 MB · ENThe SIMCom SIM802 Hardware Design Manual provides design guidelines, pin descriptions, power management, and interface specifications for the SIM802 module.
SIMCOM 5839 Application Note Multiplexing
Application Note 23 pages · 299 KB · ENThis SIMCOM 5839 application note explains the GSM 07.10 multiplexing protocol and related command set.
SIMCom SIM900 Application Note
Application Note 22 pages · 307 KB · ENThis SIMCom SIM900 application note provides technical details, command definitions, and multiplexing information for the GSM/GPRS module.
SIMCOM SIM900A-HD CN V1.03 hardware design Manual
User Manual 58 pages · 2.3 MB · ZHThe SimCom SIM900A hardware design manual provides specifications, pin functions, power‑management and sleep‑mode details for the GSM module.
SimCom SIM900A_HD Hardware Design Manual
User Manual 56 pages · 1.9 MB · ZHHardware design manual for the SimCom SIM900A_HD GSM module, providing pin definitions, power requirements and circuit guidelines.
SIMCOM Flash Update Tool user manual
Which document do I need?
Application Note
How to use the product for one specific task, with worked examples.
Programming Manual
Instruction set, parameters and examples for configuring or programming the device.
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in SimCom manuals
Which positioning systems does the SIM68VB module support?
It supports the Beidou (BD) and GPS dual‑mode positioning systems.
From: SIMCom SIM68VB Beidou Navigation Module Hardware Design Manual
What is the maximum refresh rate of the module?
The module can refresh position data at up to 10 Hz.
From: SIMCom SIM68VB Beidou Navigation Module Hardware Design Manual
How do I request the manufacturer identification?
Send the AT command AT+HCGMD to the module.
Which command sends TCP data?
Use the AT+TCPWRITE command to transmit data over an established TCP connection.
Who is responsible for system validation of the SIM340 module?
System validation of this product within a larger electronic system remains the responsibility of the customer or the customer's system integrator.
What is the purpose of the SIM300 hardware design manual?
It provides information to support application and engineering efforts that use SIMCom products.
