Chengdu Ebyte Electronic Technology Co.,Ltd.
E180-Z8910SP User Manual
Copyright ©2012–2021
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Chengdu Ebyte Electronic Technology Co.,Ltd.
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5. Sending and receiving method
5.1 The way of data transmission
The data transmission mode of the module includes 5 modes: unicast, protocol unicast, multicast, protocol multicast, and
broadcast.
5.1.1 Broadcast mode
In the broadcast mode, the sending device sends the data received by the serial port to each node in the network, and all
devices in the network will receive the data. The minimum broadcast period is 500ms.
5.1.2 Multicast mode
In the multicast mode, first set the group number of the devices in the network in the configuration mode (grouping,
restart to take effect), and the sending device specifies the target group number to send 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. The device with the same group number in the network will receive the data, and the minimum
multicast period is 500ms.
5.1.3 Protocol Multicast Mode
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 valid wireless transmission data. No need to enter the configuration mode to
configure the target group number
5.1.4 Unicast mode
In unicast mode, the devices in the network conduct point-to-point communication through the network address. 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 after receiving the data to indicate that it has received the data. Data (the dormant terminal
node has no ACK function).
模式引脚电平
配置
传输
>100ms
模式引脚电平脉冲
模式引脚电平脉冲
