Article Directory
I. Introduction
Let’s not talk about the past and present of Bluetooth Sig Mesh and its historical origin. It doesn't make much sense, just look at how to use it, that's it!
Second, how to choose Mesh networking
2.1 WiFi Mesh (Plug-in WiFi)
- WiFi device is relatively the most convenient, direct access to the cloud, direct operation of the mobile phone, the fastest response, the largest bandwidth
- The only disadvantage is the high power consumption and the inability to stand by for a long time
- Such as: smart speakers, surveillance cameras, etc., all use WiFi Mesh
2.2 Bluetooth Sig Mesh (need to interact with mobile phone)
- The mobile phone comes with bluetooth, so it is very convenient for bluetooth devices to interact with the mobile phone
- And Bluetooth low energy consumption, able to stand by for a long time
- Such as: Bluetooth bracelet, indoor positioning beacon
3.3 ZigBee Mesh (other)
- Other sensors use ZigBee.
Three, Bluetooth module selection
There are many modules that support Bluetooth Sig Mesh
- Telink TLSR8258, TLSR8269
- Nordic nRF52XXX
- ESP32
- and so on
Four, Mesh ad hoc network
- Mesh ad hoc network can accommodate multiple node devices exceeding 1w+.
- Network information is automatically memorized, and access to the network is extremely fast in 1 second.
- The mobile app can proxy to the network for any node to realize remote control of the mesh network.
Five, Mesh role
- Used as a gateway to configure the Mesh network
- The provision node, a special node node, is the initiator of the entire network, also known as a gateway, which adds unnetworked devices to the mesh network.
- As a node to form a Mesh network
- node, relay node, friend node, proxy node equiangular colors.
For specific Mesh network roles, please see the next article:
Six, Mesh application scenarios
It is suitable for various ad hoc networks, low power consumption, multi-node equipment relay and many-to-many communication scenarios.
- Smart home system
- Indoor positioning system (people flow distribution system)
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