Bluetooth technology has become an integral part of our lives, and low-power Bluetooth, with its low power consumption and cost advantages, has been applied in various Bluetooth smart products. What are the characteristics of low-power Bluetooth?

Low power consumption

Low-power Bluetooth aims to reduce power consumption both in design and usage. To minimize power usage, most low-power Bluetooth devices are in a sleep mode, waking up only when activity occurs, and then returning to sleep once the task is completed, resulting in lower power consumption compared to traditional Bluetooth. The low-power Bluetooth modules (4.0/4.2/5.0) developed and produced by Yunli Wuli are equipped with Nordic chips, featuring low power consumption, anti-interference, compact size, long range, and cost-effectiveness.

2. Stability, safety, and reliability

Low-power Bluetooth technology employs the same Adaptive Frequency Hopping (AFH) technology as traditional Bluetooth, but to significantly reduce the cost and power consumption associated with AFH, the number of channels has been reduced from 79 1-MHz wide channels in traditional Bluetooth to 40 2-MHz wide channels.

Coexistence of Wireless

Bluetooth technology utilizes the unlicensed 2.4GHz ISM frequency band. Due to the abundance of technologies sharing this radio wave space, wireless performance can degrade due to error correction and retransmissions caused by interference (such as increased latency and reduced throughput). In stringent applications, interference can be minimized through frequency planning and specialized antenna design. Since both traditional and low-power Bluetooth employ AFH, a technology that significantly reduces interference from other radio technologies, Bluetooth transmissions offer excellent stability and reliability.

4. Range of Connectivity

The modulation of low-power Bluetooth technology differs from traditional Bluetooth technology. This unique modulation achieves a connection range of up to 300 meters with a wireless chip set of 10 milliwatts (high power for low-power Bluetooth).

5. Usability and Integration

Low-power Bluetooth typically operates with a primary device connected to multiple secondary devices. The primary device governs the communication frequency of the secondary devices, which can only communicate based on the primary device's requests. A new feature added by low-power Bluetooth technology, compared to traditional Bluetooth, is the "broadcast" function. With this feature, secondary devices can inform the primary device of the data they need to send (broadcast messages can also include activities or measurements).