BT PCB module classification

The BT PCB modules are divided into 1.2, 2.0, 2.1, 4.0 and the latest 4.1 and 5.0, 5.1 according to the standard.
The BT PCB module is divided into data bluetooth module and voice bluetooth module according to purpose. The former completes wireless data transmission, and the latter completes wireless data transmission of voice and stereo audio.
The BT PCB module is divided into flash version and ROM version according to the chip design. The former is generally BGA package with external flash, and the latter is generally QFN package with external EEPROM.
The BT PCB modules are divided into BroadCom Bluetooth modules, Dell Bluetooth modules, and CSR Bluetooth modules according to chip manufacturers;
The BT PCB module is divided into data bluetooth module, serial bluetooth module, voice bluetooth module, car bluetooth module according to the purpose;
The BT PCB module is divided into CLASS1, CLASS2, CLASS3 according to the power;
The BT PCB module is divided into classic Bluetooth module (BT) and Bluetooth low energy module (BLE) according to the application and support protocol;
The BT PCB module is divided into single-mode Bluetooth module and dual-mode Bluetooth module according to the support of the protocol;
The BT PCB module is divided into bluetooth data module and bluetooth audio module according to the application;
BT PCB modules are divided into industrial grade and commercial grade according to temperature;