SIM A7670C 4G LTE Development Board w/ Flex Antenna
SIM A7670C 4G LTE Development Board w/ Flex Antenna - Image 2
SIM A7670C 4G LTE Development Board w/ Flex Antenna - Image 3
SIM A7670C 4G LTE Development Board w/ Flex Antenna - Image 4
SKU: IOWC-0945
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SIM A7670C 4G LTE Development Board w/ Flex Antenna

₹1,859.00 (Inclusive of all taxes)
Out of Stock

The SIM A7670C 4G LTE Development Board provides a robust cellular connectivity platform for IoT projects, supporting LTE-TDD, LTE-FDD, and GSM networks with speeds up to 10Mbps downlink. It integrates UART, USB, RS232, I2C, and ADC interfaces for easy connection to microcontrollers and embedded systems.

Features

  • Supports LTE-TDD, LTE-FDD, and GSM networks with download speeds up to 10Mbps and upload up to 5Mbps for reliable data transmission.
  • Features a wide 9–32V DC input voltage range, making it suitable for automotive, industrial, and solar-powered IoT applications.
  • Includes a flexible 4G antenna with U.FL connector to enhance signal reception and ensure stable network connectivity.
  • Offers multiple interfaces including UART TTL, RS232, I2C, ADC, and audio MIC/SPK for versatile system integration.
  • Supports advanced software features like SSL for secure connections, FOTA for remote firmware updates, and LBS for location-based services.

Out of stock

Description

The SIM A7670C 4G LTE Development Board is a comprehensive cellular communication module designed for developers and system integrators building IoT solutions. Its core is based on the SIM A7670C chipset, providing multi-band LTE and GSM fallback connectivity, ensuring network availability across various regions. The board’s architecture supports a wide operational voltage, allowing direct integration into 12V or 24V vehicle and industrial power systems without complex regulation.

Engineered for low-power IoT deployments, the board features an efficient sleep mode consuming less than 10mA, extending battery life in remote telemetry and tracking applications. The integrated U.FL antenna port, coupled with the included flexible antenna, optimizes RF performance for reliable data links. With its onboard Mini SIM slot and suite of serial and digital interfaces, it serves as a ready-to-deploy cellular modem for smart devices, automation controllers, and wireless monitoring systems.

Key Features

  • Multi-network support for LTE-TDD, LTE-FDD, and GSM ensures broad coverage and reliable fallback connectivity.
  • Wide 9–32V DC input voltage range enables direct use in automotive, industrial, and off-grid power environments.
  • Comprehensive interface suite includes UART TTL, RS232, USB, I2C, ADC, and audio inputs/outputs for flexible peripheral connection.
  • Advanced software support for SSL (secure socket layer), FOTA (firmware over-the-air updates), and LBS (location-based services).
  • Integrated U.FL connector for external 4G antenna attachment to boost signal strength in challenging RF environments.
  • Onboard Mini SIM card slot simplifies cellular subscription management and module activation.
  • Low-power sleep mode (<10mA) designed for battery-operated, energy-conscious IoT sensor nodes and trackers.
  • Compact form factor and robust design suitable for prototyping as well as integration into final product enclosures.

Applications

  • Industrial IoT (IIoT) telemetry and remote equipment monitoring systems.
  • Vehicle telematics, fleet management, and automotive tracking devices.
  • Smart agriculture sensors for soil moisture, weather, and irrigation control.
  • Remote environmental monitoring stations for air quality and weather data.
  • Smart city infrastructure such as smart parking, waste management, and street lighting.
  • Portable and fixed asset tracking solutions with cellular connectivity.
  • Backup communication links and failover systems for critical infrastructure.

Technical Specifications

Cellular Chipset/ModuleSIM A7670C
Supported NetworksLTE-TDD, LTE-FDD, GSM
LTE Download SpeedUp to 10 Mbps
LTE Upload SpeedUp to 5 Mbps
Supply Voltage9 – 32 V DC
Sleep Current< 10 mA
Communication InterfacesUART TTL, USB, RS232, I2C, ADC, Audio MIC/SPK, USB_BOOT
SIM Card SlotMini SIM
Antenna ConnectorU.FL
Software FeaturesSSL, FOTA, LBS

Frequently Asked Questions

What is the primary power requirement for the SIM A7670C board?

The board operates on a wide 9 to 32 volts DC input range. This makes it directly compatible with standard 12V automotive systems, 24V industrial power rails, and solar-charged battery packs without needing an additional voltage regulator. Ensure your power supply can deliver sufficient current for peak transmission periods.

How do I establish communication with a microcontroller?

Connect the board's primary UART TTL interface (TX, RX, GND) to your microcontroller's serial pins. Configure your MCU's serial port to the module's default baud rate, typically 115200, to send and receive AT commands for network control and data transmission. The RS232 interface is available for direct connection to legacy industrial equipment or PCs.

What AT commands are used to connect to the cellular network?

Use standard 3GPP AT commands. Start with 'AT' to check communication, then 'AT+CPIN?' to verify SIM status. Use 'AT+CREG?' to check network registration and 'AT+CGATT?' for PDP context attachment. For data, use 'AT+CGDCONT' to set APN and 'AT+CGACT=1' to activate the context. Refer to the SIM A7670C AT command manual for a complete list.

Can I update the firmware remotely?

Yes, the module supports Firmware Over-The-Air (FOTA) updates. This allows you to deploy firmware upgrades to deployed devices via the cellular network without physical access. The process is managed through specific AT commands that download and apply update packages from a secure server, ensuring your devices stay updated with the latest features and security patches.

How do I attach the included flexible antenna?

The antenna has a U.FL (IPEX) connector. Carefully align the connector on the antenna cable with the U.FL port on the development board and press down firmly until it clicks into place. Avoid bending the cable sharply near the connector. For optimal performance, position the antenna away from metal obstructions and other RF sources to maximize signal strength.

Package Includes

  • 1 x SIM A7670C 4G LTE Development Board
  • 1 x 4G Flexible Antenna

Additional Information

Weight 0.04 kg
Dimensions 9 × 9 × 2 cm

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