I believe some people have such a question when they understand Bluetooth. Is Bluetooth 4.0 and Bluetooth low energy the same thing? This statement is wrong, it is absolutely wrong understanding of Bluetooth 4.0. The Bluetooth 4.0 standard includes two Bluetooth standards: one is a dual-mode standard, which includes traditional Bluetooth (or classic Bluetooth), high-speed Bluetooth, and low-power Bluetooth; the other is a separate low-power standard. These two parts are suitable for different application conditions and application environments.
Traditional Bluetooth (or classic Bluetooth) can be used for large data transmission, such as voice, music, etc., and Bluetooth low energy is mainly used in products with high real-time requirements but relatively low data rates, such as sensing Equipment data transmission and remote control device equipment.
Traditional Bluetooth has three power levels: Class1, Class2, and Class3, which support transmission distances of 100m, 10m, and 1m, respectively, while Bluetooth low energy is no power level, and the general transmission power is -21 ~ 5dBm Programming setting), for Bluetooth 4.2 and above standards, the transmission distance is more than 100m under open conditions is no problem.
Therefore, Bluetooth 4.0 integrates the three standards of traditional Bluetooth, high-speed Bluetooth and low-power Bluetooth, not just low-power Bluetooth.
About Bluetooth Low Energy
Bluetooth Low Energy, also known as Smart Bluetooth, is a smart, low-power wireless technology. This technology further increases the degree of intelligence by reducing the size of smart devices, reducing their price and complexity.
Bluetooth Low Energy was originally a part of the Bluetooth 4.0 core specification. The initial goal was to provide the wireless standard with the lowest power consumption, and it was optimized in terms of low cost, low bandwidth and low power consumption. At present, Bluetooth low energy technology has been widely used, and only need a button battery to run for a long time.
Schematic diagram of Bluetooth low energy compatibility with other Bluetooth
The Bluetooth low energy solution solves the communication between mobile phones and mobile devices, and can transmit related data to the cloud for storage, and can also be expanded accordingly and realize more value-added services.
* HY254124PA module * uses TI CC2541 highly integrated single-mode Bluetooth BLE 4.0 chip, the module can work under the role of master / slave / master-slave switch, the module will automatically broadcast after the initial setting, and the mobile phone that has opened a specific APP will After scanning and docking, you can monitor it through BLE protocol after success. At the same time, the built-in FLASH program memory is suitable for customized applications and better protects the applications.
General characteristics:
Product model: HY-254124PA
Wireless standard: Bluetooth 4.0 BLE protocol
Size: 25.1 * 12 * 2.04mm
Communication interface: UART / SPI / IIC
Transmitting power: + 15dBm (the antenna output terminal is directly connected to the RF coaxial line for direct test)
Power control range: 20dB (can be set by software programming)
Receiving sensitivity: -94dBm (using CC2541 high gain receiving sensitivity)
Antenna type: soft antenna
Transmission distance: 110 meters (the actual distance is subject to the test environment)
Working voltage: 2.0-3.6V DC
Working mode: master mode / slave mode / broadcast mode (Beacon)
Secondary development: Support customers' secondary development and provide SDK tools
Provide you with the supply of pulse oximeter finger. to help you safely get back to your daily routine.
With more than 15+ yrs rich MFG experience, you can definitely trust in and cooperate with.
Our strict quality control protocol thoroughly vets every aspect of production, storage, and shipments all the way way to our end customers.
Our products include pulse Oximeter Finger, Forehead Thermometer, Automatic foam soap dispenser, etc.
Pulse Oximeter Manufacturers, oxygen saturation, oximetry
TOPNOTCH INTERNATIONAL GROUP LIMITED , https://www.micbluetooth.com