10 Tips For Choose The Right Bluetooth Modules

- Jun 18, 2019-

10 Things You Should Know Before Choosing The Right Bluetooth Modules

Although there are many different sizes and types of Bluetooth modules available on the market, many smart device manufacturers are worried about how to choose the Bluetooth module that suits their products. In fact, the purchase of the Bluetooth module mainly depends on what products are produced and in what scenarios. Below, Feasycom summarizes the top ten considerations for the purchase of Bluetooth modules for the reference of the majority of smart device manufacturers.

1, The chipset

The chipset determines the computing power of the Bluetooth module. Without a strong "core", the performance of the Bluetooth module cannot be guaranteed. If you choose a low-power Bluetooth module, the chipset would be better with CRS, Nordic, Ti, etc. For instance, Feasycom offers quality modules with Ti, CRS, Nordic chipsets.

2, Power Consumption

There’re two types of Bluetooth in the industry, Traditional Bluetooth and Low-Energy Bluetooth (BLE). The smart device with traditional Bluetooth module faces frequent disconnection. It needs frequent re-pairing, and the battery will be exhausted quickly. On the opposite, the smart device with low-energy Bluetooth module only connects once. The dry battery can run for a long time. Therefore, if you are using a battery-powered wireless smart device, it is the best to use Bluetooth 5.0/4.2/4.0 low-energy Bluetooth module to ensure the endurance of the product.

3, Transfer Content

The Bluetooth module can wirelessly transmit data or voice information or both. And according to these features, here comes the Bluetooth data module or the Bluetooth voice module. The Bluetooth data module is mainly used for data transmission, and is suitable for information and data transmission in public places with large traffic such as exhibitions, stations, hospitals, plazas, etc. The Bluetooth voice module can transmit voice information, which is suitable for voice information transmission between a Bluetooth mobile phone and a Bluetooth headset..

4, Transmission Rate

When selecting the Bluetooth module, it is necessary to know the application of the Bluetooth module and use the data transmission rate required by the working state as the selection standard. After all, the data rate required to transmit high-quality music to the earphone and the heartbeat monitor can be widely different.

5, Working Range

Equipment manufacturers need to know in what condition their products are working, whether it request a long range or not. For wireless products such as wireless mouse, wireless earphones, remote control devices and other wireless devices, you can choose Bluetooth modules with a transmission distance of more than 10 meters, such as FSC-BT630 Bluetooth module; Or for RGB lights, it has higher requirements on transmission distance, you could go with modules with cover range of 50 meters, such as the FSC-BT616 Bluetooth module.

6, Package Form

The Bluetooth module has three types: in-line type, surface mount type and serial port adapter. The in-line type has pins for pre-welding and is suitable for small batch production. The surface-mount type module uses semi-circular pads as pins for large-volume reflow soldering for relatively small carriers; Serial Bluetooth adapter type works for the condition when it is inconvenient to insert the module into the device, plug it directly into the device's nine-pin serial port.

7, The Interface

Per the specific implementation of the interface requirements, the Bluetooth module interface includes serial interface, USB interface, digital IO port, analog IO port, SPI programming port and voice interface, different interface can exercise different function. If it's just for data transfer, it's better to use a serial interface (TTL level).

8, The Master-Slave Mode

The Master module can automatically search for a Bluetooth module with the same or lower Bluetooth version level as its own; the Slave module is passively waiting for the Master's search and then makes connection. The general smart devices on the market are all selected slave modules, and the Master modules are generally used on devices such as mobile phones that can serve as control centers.

9, The Antenna

Different products have different antenna requirements. Currently, the most commonly used antennas for Bluetooth modules are PCB antennas, ceramic antennas and IPEX external antennas. If the module needs to work inside a metal shelter, Bluetooth modules with IPEX external antennas would be a better option.

10, The Price

Price is the most concerned issue for many smart device manufacturers. In the field of low-energy Bluetooth module, Feasycom has been producing BLE Modules since its first-came. The ISO9001-certified self-owned factory can produce 40K~50K Bluetooth products per day, with short preparation period and quick response to the majority of equipment manufacturing. Feasycom's existing supply chains and production lines can achieve significant price advantages, ensuring that our clients can get low-cost, cost-effective low-energy Bluetooth modules from us.

In addition to the above ten points, you also need to know the size, receiving sensitivity, transmit power, Flash, RAM, etc. of the Bluetooth module when purchasing the Bluetooth module.


If you have any questions unclear, feel free to let us know. We’d love to hear from you.