Bluetooth Mesh networking technology? Zhongyi Tengda has launched two modules for you to choose from!
Internet of Things has a wide range of applications in industry and commerce, and it can be used as a way of networking sensors to provide basic data for artificial intelligence. Compared with commercial applications, industrial control has more requirements for the Internet of Things, such as network security, low interference, and low output power, but the amount of data transmission cannot be very large. Currently, there are existing methods such as Lora, Wi-Fi, zigbee, Bluetooth, etc. lora is more suitable for data transmission in open places, cannot form mesh networks, Wi-Fi transmission distance is short, and cannot form mesh networks, zigbee can form a mesh network, but the transmission efficiency is relatively low.
Bluetooth mesh network is a Bluetooth standard approved in 2017. This is a networking technology. Bluetooth 4.0 above supports BLE low power chips. Bluetooth 5.0 is the latest standard of Bluetooth. Its main advantage is to increase the transmission speed by 2 times and the transmission distance by 4 times, but it and Bluetooth mesh are two concepts.
Bluetooth Mesh was born out of CSR Mesh, a private protocol advocated by CSR, which was born in 2014. The Bluetooth Technology Alliance officially announced on July 19 last year that Bluetooth (Bluetooth) technology began to fully support Mesh mesh networks. The new Mesh function provides many-to-many transmission between devices, and especially improves the communication capability of building a wide range of network coverage. It is suitable for building automation, wireless sensor networks and other Internet of Things solutions that require tens of thousands of devices to be transmitted in a reliable and safe environment.
The network node types of the Bluetooth mesh are as follows:
Friend Low power node: The two nodes are used together. The Friend node can cache the information of the Low power node, so that the low power node can wake up regularly and retrieve messages from the Friend node to meet the requirements of low-power applications.
Bluetooth Mesh is different from zigbee. Instead of routing protocol, it uses network flood management technology. Simply put, the data sent by a node will be forwarded by all nodes that support relay, but will not be forwarded indefinitely. The node that has forwarded the data will no longer forward. At the same time, Bluetooth Mesh has some special mechanisms, such as packet lifecycle (Time To Live) management, it also effectively prevents unlimited forwarding of data.
Zhongyi Tengda has focused on the lighting field and developed Bluetooth MESH intelligent lighting solutions to provide intelligent functions for lighting equipment, including lighting hardware, cloud, applications, etc. Online development platform project audit and customized development, one-stop service to help traditional lighting enterprises to realize intelligent lighting equipment, operation and maintenance management information, management upgrade platform.
The module is designed using Cypress®CYW20735B1 and is connected to the external antenna on the customer's product board through its RF pins. Contains the chip's basic peripheral circuit, crystal oscillator and 4Mbit SPI Flash. Supports 4 PWM interfaces, 1 PUART interface, 6 10bit ADC interfaces and 1 I2C interface. This module can support intelligent lighting, intelligent TV, intelligent keyboard and other scenes.
BB1735-46 supports GATT-based Bluetooth low power HID(HOGP) profile V1.0, conforms to Bluetooth core specification V5.0 with LE-2-Mbps support, supports adaptive frame skipping (AFH), supports basic rate (BR) and low power Bluetooth, and supports Bluetooth device ID profile version 1.3.
BB1735-46 supporting IOS and Andorid APP support different lighting control schemes. It has an auxiliary ADC of 15 analog channels, a programmable 8 × 8 key scanning matrix, and RX sensitivity ≧-93dB(LEGFSK,0.1 �� R,1Mbps) to make it have excellent receiving sensitivity. The RF output power is 10dBm, and the control distance can reach 100m.
RB8762-25 Bluetooth module is designed based on Realtek RTL8762CMF. Open module is an ultra-low power consumption system solution for Bluetooth 5.0 low power consumption applications. Embedded ARM Cortex-M4F 32-bit CPU has 16-bit instruction set and 32-bit expansion (Thumb-2 technology), which can provide high density code and occupy less memory. The Bluetooth module can be applied to smart home lighting, camera lighting system, industrial lighting system and other scenes.
The chip has ultra-low power consumption of smart PMU, supports 2Mbps LE, supports LE low-load targeted advertising, supports adaptive frame skipping, supports Bluetooth 5 core specification, supports multi-level low-energy state, and supports LE data length expansion.
RB8762-25p supports LE L2CAP for connection-oriented channels, OTA programming mechanism for firmware upgrade, GAP,ATT, GATT,SMP, and L2CAP, and LE data length extension.