Introduction
As Bluetooth Low Energy (BLE) spreads across wearables, smart homes, and industrial sensing, TI's CC2640 has become a core choice for many Bluetooth modules. Within EBYTE's E72-2G4M series, the E72-2G4M02S2B and E72-2G4M05S1B are two BLE 5.1 low-energy modules based on the CC2640, representing two distinct positions in the BLE product line.
The Chip Core: What Is the CC2640?
The CC2640 is an ultra-low-power wireless MCU from TI's SimpleLink™ series with a dual-core architecture: an ARM Cortex-M3 main core handles application processing while a Cortex-M0 RF core manages wireless control. This division of labor keeps power low while delivering solid compute capability. Supporting the BLE 5.1 protocol, it is an ideal core for Bluetooth IoT devices.
Product Comparison
Feature E72-2G4M02S2B E72-2G4M05S1B
Core Chip CC2640 CC2640
Protocol BLE 5.1 BLE 5.1
Key Strengths Ultra-low power, multi-role functionality High-precision crystal, dual-core processor
Communication Interface Various command operations and configurations Multiple communication interfaces
Operating Voltage — 1.8–3.8 V
Band 2.4 GHz ISM 2.4 GHz ISM
E72-2G4M02S2B Highlights
This module is known for ultra-low power and multi-role functionality. It supports AT command configuration, letting users set up and manage parameters through simple commands. Its high-speed transmission suits real-time-sensitive scenarios, such as sensor data backhaul in smart homes.
E72-2G4M05S1B Highlights
This module emphasizes a high-precision crystal and dual-core processing, with a wide operating voltage of 1.8–3.8 V, good interference immunity, and stable communication. Its rich communication interfaces make integration with various MCUs and sensors easy.
Applications
Both modules serve smart homes, industrial sensors, security systems, and wearables. BLE 5.1's extended range and higher data rates make them strong performers in low-power, long-battery-life devices.
Conclusion
With its dual-core architecture and ultra-low-power design, the CC2640 platform lays a solid foundation for BLE IoT devices. The E72-2G4M02S2B (multi-role) and E72-2G4M05S1B (high-precision crystal) together form an important part of EBYTE's BLE product line.
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