Ebyte E70-433NW30S User Manual

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Ebyte E70-433NW30S User Manual Manual pdf 11 page image

Chengdu Ebyte Electronic Technology Co,;Ltd E 70-433NW30S user manualCopyright ©2012–2019，Chengdu Ebyte Electronic Technology Co,;Ltd 106.3 ACK description The ACK pin is used to indicate the status of the last user’s data transmission. Before transmitting, the pin is pulledlow. After the transmission is successful, the pin is pulled high. The user can use this pin state to judge if the data hasarrived successfully. This pin function cannot indicate the coordinator to send broadcast message. Note: In 802.15.4 protocol, the device will use the CSMA/MA technology to access the channel before sending data.When the receiving device receives the data, the returned ACK does not have this mechanism. This means that evenif the receiving device can receive data in extreme conditions, sending device ACK pin indicates that the last datatransmission failed.7.Operating mode7.1.Coordinator modeIf the user configures the operating mode 4,（M0=0,M1=0）or the user configures the operating mode as 0, themodule works in the coordinator mode. In the coordinator mode, the coordinator can set up the network, coordinator isthe central node of the network, there must be a coordinator in the network.The coordinator configurable data input mode is:Broadcast transmission. When configured to broadcast, all non-dormant devices on the entire network will receive data.The ACK pin indicates transmission successfully all the time.Short address transmission, when configured to short address transmission, the user must specify the short address beforesending data.Long address transmission. When configured to long address transmission, the user must specify the long address beforeM1 M0 Description RemarksCoordinator mode 0 0 Set up a network to manage network nodeinformation Transfer data according to input and output modesNormal node 0 1 Send and receive data at any time High real-time performanceDormant node 1 0 Low-power reception, sending data at anytime Receive delay, send need to wake up the serial portSleep mode 1 1 Cannot send and receive data, system sleeps The fixed baud rate is 115200 8N1