Compatibility between Bluetooth 4.0 ble and traditional Bluetooth

Bluetooth is divided into three types: Bluetooth smart Ready, Bluetooth Smart (Smart is the logo for low-power Bluetooth), and standard Bluetooth. According toBluetooth SIG, in order to distinguish between the compatibility of the device and to identify the transmission frequency of each version. Basically, Smart ready is suitable for any dual-mode Bluetooth 4.0 electronic products, such as Apple Inc.IPhone 4S and later products and installed Android 4.3 + system, and Bluetooth chip support 4.0 of mobile phones. Smart is a device that uses a twisted-button battery and transmits a single consultation, such as a heart rate monitor or pedometer. Smart ready has the highest compatibility and can be communicated with smart and standard. Standard Bluetooth is not connected to Smart.

      summarized under both:

Smart ready can connect and communicate with smart, smart, traditional Bluetooth;

Smart can connect and communicate with smart and smart ready;

        Traditional Bluetooth can and traditional Bluetooth, Smart ready to connect and communicate;

Because now the more mainstream CC2540 is ble single-mode chip, belongs to smart, so only and smart ready, smart connection and communication, is incompatible with traditional Bluetooth. At the same time support BR and BLE devices become dual-mode equipment, the current general mobile phone using Bluetooth chip are dual-mode. I use the mobile phone Bluetooth hardware is support BLE, but because the system is Android 4.1, so you have to brush the machine to more than 4.3 version, in order to connect with the CC2540 communication.

This article is from the "Big bro" blog, make sure to keep this source http://cto521.blog.51cto.com/9652841/1638654

Compatibility between Bluetooth 4.0 ble and traditional Bluetooth