[ZigBee wireless communication module step by step] zigbee3 0 module to establish remote network control method

This paper takes the application of street lamp control as an example , sketch ZigBee3.0 Module usage process .

One 、 Set up a network

1. adopt USB The serial port module will leave the factory ZigBee Ad hoc network module connection , Open the upper computer software “E180-ZG120A-Setting”, As shown in the screenshot below , Select the port number , And set the serial port baud rate （ Default 115200）, Open the serial port

2. After the serial port is opened , First click on “ Enter configuration mode ”, Message box prompt “ Successfully entered the configuration state , Reading parameters succeeded ”, The main network parameters include , The node type defaults to terminal , Channel default 11,PAN ID Default random , The transmission power defaults to 10.

3. Change the node type to coordinator , And click the back button next to it , At the same time, the message box prompts “ Configuration of device type succeeded ”. General ZigBee3.0 The network is established by the coordinator node , Therefore, it is necessary to change the factory default terminal node type to coordinator before establishing the network .

4. After the node type is written successfully , Modify some network parameters to establish the required ZigBee The Internet （ You can also use the default value without modifying the parameters ）, Modify the channel here 、 The Internet PANID And transmit power , After parameter modification, be sure to click “ Write network parameters ”, The message box will prompt “ Write parameter succeeded ”. Modified node type , The module needs to be restarted before it can take effect , Click on “ Module restart ”, The message box prompts “ Module restart succeeded ”.

Two 、 Join the network

1. Enter configuration mode , Message box prompt “ Successfully entered the configuration state , Reading parameters succeeded ”, Setting network parameters includes , The node type defaults to terminal , Channel default 11,PAN ID Default random , The transmission power defaults to 20.

2. Modify network parameters , Its PAN ID And transmission channel parameters must be the same as the network to be joined , Click on “ Write network parameters ”, Message box prompt “ Write parameter succeeded ”. Restart the module .

3. Select the fixed-point networking interface , The network status is displayed as “ Joined the network ” Indicates that the dormant terminal node has joined the network created by the coordinator .

3、 ... and 、 Drive street lamp

The module is connected with the street lamp control driver to control the brightness and switch status of the street lamp ,pwm The interface controls the brightness of street lamps ,GPIO Control the street lamp switch .

Four 、 Remote control

1.zigbee Through the Internet E180-DTU(ZG120-485)zigbee To serial port data transmission unit , Connect E810-DTU（RS485） Realize network connection through Ethernet interface , As shown in the figure ：

Zigbee Network communication link

2. adopt E810-DTU(RS485) The connected network server collects the working state data of street lamps and controls the brightness and switching state of street lamps , Realize remote network monitoring .