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SIMCom A7677S Arduino Shield

In the context of Vietnam phasing out 2G services in September 2024, over 15 million 2G subscribers will be affected. The transition to 4G/5G technology is becoming urgent to achieve the goal of widespread adoption of advanced mobile networks. In response to this situation, the demand for 4G-supported modules is rising sharply.

To meet this new trend, the RnD/FAE team from EPI Vietnam Technologies, with extensive hands-on experience and continuous research, introduces the Shield Arduino A7677S – a version that supports only 4G. The product is optimized for direct connection with Arduino Uno R3, supporting VoLTE and SMS on the 4G platform, making it a perfect replacement for 2G modules.

Technical Specifications:

Main module: A7677S

Dimensions: 24x24x2.4mm
Voltage: 3.4~4.2V
Band: 1/3/5/8/34/38/39/40/41
Support: TCP/IP/FTP/HTTP
LTE Cat 1bis (uplink 5Mbps, downlink 10Mbps)

Compatible with Arduino Uno R3: The shield features 2 pin rows, supporting the expansion of other shields.

Power supply: 5V (direct connection with Arduino) or via USB type-C port.

I/O: 3.3V or 5V, including:
– RI: Ringing indication
– DTR: Sleep-wake pin
– RX/TX: UART RX/TX for AT commands
– LTE_EN: On/off LTE module.

Benefits of using the Shield Arduino A7677S:

  • Easily connects with popular Arduino boards on the market.
  • Designed with 2 pin rows, allowing expansion with other shields.
  • Simple communication via AT Command set.
  • Part of the EPduino ecosystem, providing outstanding flexibility and convenience.

EPI Vietnam Technologies – The authorized distributor of SIMCom products in Vietnam:

• Email: info@epi-tech.com.vn

• Tel: +84 2462 817 448

Instruction document: SIMCom_Arduino_A7677S

Contact EPI Vietnam Technologies Design solution

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