The DD‑MCore‑A7670E is a high‑performance, compact 4G LTE Cat 1 development board engineered for modern IoT and telemetry applications. Fully compatible with Rwanda’s cellular infrastructure, this future‑proof module delivers stable, high‑speed connectivity without relying on legacy 2G networks. It integrates multi‑constellation GNSS positioning for precise location tracking, built‑in Bluetooth for short‑range wireless sensor data, and a flexible 5 V‑12 V wide‑voltage power input. Housed on a breadboard‑friendly 2.54 mm pitch layout with an onboard Nano SIM slot, it is the ideal plug‑and‑play solution for engineers building smart tracking systems, remote monitoring nodes, and industrial automation equipment.

Technical Specifications

• Core Module: SIMCom A7670E 4G LTE Cat 1


• Cellular Data Speeds: Up to 10 Mbps downlink / 5 Mbps uplink


• Supported LTE Bands (FDD): B1, B3, B5, B7, B8, B20


• Positioning & Wireless: Integrated multi‑constellation GNSS & Bluetooth


• Input Voltage Range: 5 V – 12 V DC


• Hardware Interfaces: UART serial port, native USB, IPEX‑1 (U.FL) antenna connector


• SIM Card Layout: Onboard Nano SIM slot


• Pin Configuration: 7‑pin header, 2.54 mm pitch


• Physical Dimensions: 28 mm × 26 mm × 6.98 mm


• Operating Temperature: –40 °C to +85 °C (industrial grade)


• Supported Protocols: TCP, IP, IPv4, IPv6, Multi‑PDP, FTP, FTPS, HTTP, HTTPS, RNDIS, ECM, PPP


• Status Indicators: Power LED, Network registration LED

Typical Applications

• Smart fleet tracking and vehicle telematics


• Remote environmental monitoring stations


• Industrial automation gateways and PLC communication


• Asset management and real‑time location services


• IoT sensor hubs with Bluetooth data aggregation


• Wearable or portable devices requiring reliable 4G connectivity


• Edge computing nodes for edge‑AI and data preprocessing