Many people think that Bluetooth connection just have one-to-one connection, but one-to-one connection in many application scenarios cannot meet the requirements, these applications need multiple Bluetooth connections. Following as Feasycom’s multiple connections solutions .
Master/Slave multiple connections
The master pairs with the slaves one by one. Each connection will build a channel. The master can send data to each channel or receive data from each channel. Multiple connections cannot send data at the same time. In other words, the communication between them is not a throughput transmission mode, and it needs to communicate with different slaves at different times by sending instructions. The master-slave multi-connection is suitable for the construction of small-scale Piconet and Scatternet.
Bluetooth Mesh
Bluetooth Mesh provides many-to-many transmission between devices, and has the ability to build a large-scale network coverage. It uses network flood management technology. The data sent by a node will be forwarded by all nodes that support relay, but It will not be forwarded infinitely, and the node that has forwarded the data will no longer forward it. At the same time, Bluetooth Mesh has some special mechanisms, such as packet lifetime (Time To Live) management, which also effectively prevents unlimited forwarding of data. Bluetooth Mesh is suitable for IoT solutions that require tens of thousands of devices to transmit in a reliable and safe environment, such as building automation and wireless sensor networks.
Related Products
Products feature
* Nordic nRF52832
* BLE 5.2
* FCC, CE, IC, KC certifications
* Ultra small size: 10 x 11.9 x 1.8mm
Function introduction: support BLE central and peripheral simultaneously, support up to 6 connections (with 6 BLE modules or mobile devices) simultaneously, working power consumption is less than 5 mA, standby power consumption is 15 uA (broadcast interval = 1000 ms).
Application scenarios:
1. The communication between multiple devices is required, such as door locks and lights;
2, Gateway for collecting data from multiple devices;
Advantages and disadvantages: low power consumption, small data volume, complete certification.
Products feature
* Realtek RTL8761
* Bluetooth 5.0 dual mode
* Support SPP, GATT, HID protocol
* High speed: 80KB/S(Android), 65KB/S(iOS)
* Dimensions: 13 x 26.9 x 2.0mm
Function introduction: Support master and slave simultaneously, support multiple connections with up to 10 devices (7 SPP slave devices + 3 BLE slave devices in master mode; 7 SPP master devices + 1 BLE master device in slave mode) simultaneously, the data rate between modules can reach 20 kB/s in the high-speed multi-connection state;
Application scenarios:
1. Dongle, gateway (need to be the master and slave at the same time, and the amount of data is large, regardless of power consumption, multi-channel data collection);
2.Smart medical care;
Advantages and disadvantages: large amount of data, fast speed, does not support automatic pairing temporarily;
Products feature
* Qualcomm CSR8811
* Bluetooth 4.2 dual mode
* Support SPP, GATT, HFP, A2DP and other protocols
* Master-slave integration
* Dimensions: 13 x 26.9 x 2.0mm
Function introduction: master-slave integration, support multiple connections with up to 12 devices (7 SPP slave devices + 5 BLE slave devices in master mode; 7 SPP master devices + 1 BLE master device in slave mode) simultaneously;
Application scenarios:
1. Dongle, gateway (large amount of data, insensitive to power consumption, multi-channel data collection);
2. Smart medical care
Advantages and disadvantages: audio + data combo module, complete protocol, long communication distance (data transmission can reach 250 m, audio can reach 100 m), suitable for high-end product applications;
Products feature
* Cypress CYW20706
* Bluetooth 5.0 dual mode
* Support SPP, GATT, HFP, A2DP and other protocols
* Master-slave integration
* Dimensions: 13 x 26.9 x 2.0mm
For more detail bluetooth solutions, please feel free to contact with Feasycom sales team.
