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Everyone should have a simple understanding of the Bluetooth protocol stack, but there must be a feeling of "seeming to understand, not to say, to rest".

Bluetooth technology's new generation core specification version "Bluetooth 5" (Bluetooth 5), its main updates include longer transmission distance, faster transmission speed, larger broadcast data transmission volume, and interoperability with other wireless technologies and Improve coexistence.

At present, the reason why e-bike/e-scooter sharing is so hot is that the customer experience is very good. In a busy city, spending a dollar to ride a bicycle/bike can save time and is very pleasant. A few years ago, we couldn’t even think of unlocking a e-bicycle/e-scooter with a mobile phone that turned on Bluetooth.

First of all, need to understand several states of the Bluetooth BLE device: one of the slave is in standby, broadcast, and connection state, and the master is in standby, scanning, or connection state. The connection interval is a parameter for the connection state. If two devices are not connected, this parameter will not affect the power consumption in this state.

Currently, mainstream Internet of Things solutions are inseparable from stable and mature wireless connection technologies. WiFi, Bluetooth, and ZigBee are widely used in solutions in different scenarios according to different technical principles and characteristics. As a professional wireless module R & D manufacturer, Shengrun Technology will talk about the application of BLE Bluetooth module in health care area.

Bluetooth is a very basic data transmission tool that can achieve wireless transmission between Bluetooth devices. However, with the advent of smart phones, many people think that the Bluetooth function of mobile phones is very poor. In fact, Bluetooth has many powerful functions.