The T-Call-A7670E is a versatile, high-performance development board featuring ESP32-based microcontroller, A7670E LTE connectivity, and Wi-Fi capabilities. Ideal for IoT and embedded communication projects, this board supports various communication protocols and offers seamless wireless integration for advanced applications.

The SIM800 GSM/GPRS module is a highly versatile and efficient communication module designed for IoT and embedded applications. With its support for GSM and GPRS, it offers reliable cellular communication for a variety of use cases including remote control, data transmission, and IoT networking. With integrated support for SIM Nano card (2G), this module allows seamless integration into your communication-based projects.

Key Features

• Microcontroller: ESP32
• LTE & GSM Module: A7670E
• Wi-Fi: 802.11 b/g/n (Wi-Fi 4)
• Bluetooth: v4.2 BR/EDR and BLE
• Wireless Communication: I2C, SPI, UART, SDIO, I2S, CAN
• Flash Storage: 4MB
• PSRAM: 4MB
• USB Interface: Supports USB 2.0 for device communication
• Connectivity: TCP/IP, IPv4, IPv6, DNS, and more
• Operating System Support: Works with Android, Linux, and Windows 7/8/10
• Power Supply: 3.4V ~ 4.2V
• SIM Card Support: 1.8V / 3.0V

Applications

• IoT Projects: Perfect for Internet of Things applications, providing reliable connectivity.
• Embedded Systems: Ideal for integration into various embedded systems.
• Telecommunication Projects: Supports LTE, GSM, and Wi-Fi communication for diverse telecom needs.
• Remote Monitoring: Enables efficient monitoring of remote systems and devices.
• Data Transmission: Facilitates seamless and fast data transmission for various applications.
• Mobile Applications: Suitable for building mobile applications that require stable connectivity.
• Real-Time Communication: With high-speed LTE data transfer rates, it is well-suited for real-time communication.

Specifications for T-Call-A7670E:

• MCU: ESP32
• LTE/GSM Chip: A7670E
• Flash: 4MB
• PSRAM: 4MB
• Wireless Connectivity:
  • Wi-Fi: 802.11 b/g/n
  • Bluetooth: v4.2 BR/EDR and BLE
• Connectivity Protocols: I2C, SPI, UART, SDIO, I2S, CAN
• SIM Slot: Nano SIM (2G GSM Network)
• Operating Voltage: 3.4V to 4.2V
• JST Connector: Supports Li-Po Battery (JST PH 2pin 2.0mm)
• Power IC: IP5306
• Size: 24.0mm x 24.0mm x 2.3mm
• Weight: 14.5g
• OS Compatibility: Windows, Linux, Android

Specifications for SIM800:

• GSM/GPRS: SIM800H chip
• SIM Card Slot: Nano SIM (Supports 2G GSM/GPRS network)
• Clock Speed: 240 MHz
• Flash: 4MB / 8MB
• PSRAM: 8MB
• Wireless Connectivity:
  • Wi-Fi: 802.11 b/g/n
  • Bluetooth: v4.2 BR/EDR and BLE
• Power Supply: USB Type-C or Li-Po Battery
• Serial Chip: CH9102 (for USB to UART)
• Peripheral Interfaces: I2C, SPI, UART, SDIO, I2S, CAN
• Button: EN (Enable)
• Charging IC: IP5306 for efficient power regulation
• Expandable Features: Supports pin extension for Mic and Speaker (Ships without mic and speaker by default)

Included in the Package

A7670E

• 1 x T-Call-A7670E board
• 1 x LTE Antenna
• 1 x GPS Antenna
• 2 x 19pin headers

SIM800H

• 1 X SIM800H
• 1 XPower Cable(PH 2pin 2.0mm)
• 1 XSIM Antenna(~7 cm)
• 2 XPin

This product is designed for global compatibility in regions such as Europe, China, South Korea, and Thailand, supporting multiple LTE bands and GSM frequencies. Whether you are working with Wi-Fi, Bluetooth, or LTE, this board is an ideal choice for high-performance, embedded development.

Reference

For T-Call SIM800

For T-Call 7670