Bluetooth Low Energy (BLE) Data Logger Basics

This page describes the fundamentals of Bluetooth Low Energy (BLE) data loggers and its benefits and highlights the features of ONSET data loggers.

Definition: A data logger is a device used to record data, such as temperature, relative humidity, or water level. A BLE data logger operates according to the Bluetooth Low Energy standard specifications. These loggers are available for various environments, including indoor, outdoor, and underwater applications.

Figure 1 shows the CX402 temperature data logger from ONSET. ONSET provides data loggers with significant advantages, including high measurement accuracy and the ability to be monitored and controlled remotely using BLE-enabled smartphones or other devices.

ONSET BLE Data Logger Features

ONSET has developed BLE data loggers for a wide range of applications. Here are some examples:

Model: CX402-Txxx BLE Temperature Data Logger

Specifications:

• Temperature Range: -30°C to +70°C
• RF Power: 1mW
• Wireless Range: 30.5 m (Line of Sight - LOS)
• Logging Rate: 1 second to 18 hours

Model: MX1101 Relative Humidity Data Logger

Specifications:

• Range: 1 to 90%
• Accuracy: +/- 2%
• Resolution: 0.01% at 25°C

Benefits of BLE Data Loggers

Following are some of the advantages of BLE data loggers.
They offer several advantages over traditional data loggers, making them ideal for applications requiring wireless connectivity, low power consumption and remote access.

1. Low Power Consumption : BLE data loggers are designed for energy efficiency, allowing long term operation on a single battery, making them ideal for remote and unattended monitoring.
2. Wireless Data Transmission : Unlike wired data loggers, BLE loggers enable seamless wireless data transfer to smartphones, tablets and cloud platforms without physical connections.
3. Real Time Data Monitoring and Alerts : Many BLE data loggers provide real time monitoring with instant alerts for temperature, humidity, pressure etc. to enhance safety and compliance.
4. Compact and Portable Design : Small and lightweight, BLE data loggers can be easily deployed in various environments, including industrial settings, supply chain logistics and medical applications.
5. Easy Integration with IoT and Cloud Systems : BLE loggers support integration with IoT ecosystems, allowing remote access, automated reporting and cloud based data storage for analytics.
6. Cost Effective and Scalable : Their wireless nature reduces the need for extensive wiring and infrastructure, making them a cost effective and scalable solution for large scale monitoring applications.
7. Secure and Reliable Data Storage : Many BLE data loggers have onboard memory to store data in case of connectivity issues, ensuring no loss of critical information.

Conclusion

BLE data loggers provide an efficient and convenient solution for wireless data monitoring across industries, including healthcare, logistics, environmental monitoring and industrial automation. Their low power consumption, real time data transmission, portability and cloud connectivity make them a superior choice for remote and long term data collection. As IoT technology advances, BLE data loggers will continue to play a crucial role in improving efficiency, automation and decision making across various applications.