I. Key Criteria for Selecting Industrial-Grade Bluetooth Modules
1. Protocol Version and Compatibility
Preferably choose modules that support BLE 4.2/5.0/5.2 and above to ensure compatibility with mainstream devices.
Support for multi-protocol integration (such as BLE + UART/RS485) improves system scalability.
2. Communication Performance
Transmit Power: For industrial scenarios, we recommend an adjustable range of 2.5mW to 500mW to cover long-range requirements.
Receive Sensitivity: Optimally below 136dBm to ensure stable communication in weak signal conditions.
Communication Distance: Under ideal conditions, it should reach 100m to 1km (depending on environmental interference).
3. Operating Environment Adaptability
Wide Temperature Range: 40°C to +85°C (industrial grade) or even wider (e.g., 40°C to +125°C for automotive grade).
Interference Resistance: Supports the 2.4GHz ISM band and features built-in interference resistance (such as frequency hopping technology).
Power Supply: Supports 2.0~5.5V input, compatible with industrial equipment power supply standards.
4. Reliability and Certifications
Compliant with international certifications such as FCC, CE, and RoHS, ensuring compliance.
Equipped with an industrial-grade crystal oscillator and triple-proofing (dust-proof, moisture-proof, and corrosion-resistant) for extended life.
5. Development and Integration Ease
Provides AT commands or an SDK to lower the development barrier.
Supports a dual-antenna design (PCB + IPEX) for connecting external antennas to optimize signal quality.
II. EBYTE Industrial-Grade Bluetooth Module Recommendations
1. E73-2G4M04S1B (nRF52832 Core)
Core Features:
Supports BLE 4.2/5.0 and features a built-in ARM Cortex-M4F core for powerful processing performance.
Transmit power is 2.5mW (software-adjustable in multiple levels), with a communication range of up to 100m.
Operating temperature range: 40°C to +85°C. FCC, CE, and RoHS certified.
Built-in PCB antenna and support for an external IPEX antenna provide flexible adaptation to complex environments.
Typical applications:
Industrial sensors, smart home control, and wireless communication for medical devices.
2. E10-4BT53C3 (Automotive-Grade Bluetooth Module)
Core Features:
Based on the Silicon Labs EFR32BG22 chip, supporting Bluetooth 5.2.
Operating temperature range: 40°C to +125°C, meeting the demands of automotive and outdoor environments.
Ultra-low power design, transmit power of 10mW, and a communication range of 100m+.
Support for AT commands facilitates development and is suitable for a variety of industrial control scenarios.
Typical applications:
Automotive electronics, smart wearables, and Industrial Internet of Things (IIoT) devices.
3. E28-2G4M27S (LoRa+BLE Multi-mode Module)
Core Features:
Integrates LoRa spread spectrum and BLE 5.0 dual-mode communication, compatible with the 2.4GHz ISM band.
Maximum transmit power: 500mW (27dBm), communication range: 8km (LoRa mode).
Supports Time of Flight ranging, suitable for precise positioning scenarios.
Operating voltage: 2.5V to 3.6V, industrial-grade wide operating temperature: 40°C to +85°C.
Typical Applications:
Wireless ranging, industrial automation, and security monitoring systems.
III. Ebyte Product Advantages Summary
1. High-Performance Core: Utilizes proven chip solutions from Nordic and Semtech, balancing processing power and power consumption.
2. Multi-Mode Compatibility: Supports multiple modulation methods, including BLE, LoRa, and GFSK, adapting to complex industrial needs.
3. Industrial-Grade Reliability: Wide operating temperature, triple-proofing, and high-precision crystal oscillators ensure long-term operation in harsh environments.
4. Rich Ecosystem Support: Provides datasheets, evaluation kits, and development tools to accelerate product implementation.
IV. Purchasing Recommendations
Clear Requirements: Select models based on key parameters such as communication range, power consumption, and ambient temperature.
Field Testing: Verify the module's anti-interference capabilities and communication stability in the target environment.
Technical Support: Contact Ebyte for customized solutions (such as custom frequency bands, packaging, or firmware development).