Chapter 5 Sending And Receiving Methods; The Way Of Sending Data; Broadcast Mode; Multicast Mode - Ebyte E180-Z5812SP Product Manual

Zigbee multifunctional soc wireless module

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Chengdu Ebyte Electronic Technology Co., Ltd.

E180-Z5812SP Product Manual

Chapter 5 Sending and receiving methods

The module's data transmission methods include unicast, protocol unicast, multicast, protocol multicast, and broadcast.

In broadcast mode, the sending device sends the data received by the serial port to every node in the network, and all devices in the

network will receive the data.

In the multicast mode, first set the group number of the devices in the network in the configuration mode (grouping, restart to take

effect), the sending device specifies the target group number in the configuration mode (which group to send the data to), and then The

sending device enters the transmission mode and sends the data received by the serial port to the network, and the devices with the

same group number in the network will receive the data.

When the sending device is in transmission mode, the serial port receives data, the first byte indicates the target group number, and the

following data indicates effective wireless transmission data. No need to enter the configuration mode to configure the target group

number

In unicast mode, the devices in the network perform point-to-point communication through the network address, and the sending

device sends the received serial port data to the target address device, and the target address device can return an ACK to the sending

device to indicate that it has received the data. data (sleeping end nodes do not have ACK capability).

When the sending device is in transmission mode, the serial port receives data, the first two bytes represent the short address of the

target network, and the following data represent effective wireless transmission data. It is not necessary to enter the configuration

mode to configure the target network short address.

Note: When configured as broadcast or multicast, the period of periodic transmission is recommended to be greater than 2000ms,

otherwise it may cause data blockage.

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