AT Command Usage Scenario
eWBM LoRa AT Command Manual for Consumer Products, Rev. 0.6, 02/2021
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2)
Downlink : Confirming the data sent from a network server to a Node
Under the default Class A, Uplink data must be sent to Server in order to receive data at a Node,
AT+SEND
2:hello
->
Send
Text Data “
hello
” to Port #2
Send UNCONFIRMED_UP Port 2 Size 5 Adr 1 AdrAckReq 0 Ack 0 Cnt 1
00:18:36.373 TxConfig ch 923100000 pwr 14 bw 0 sf12
<OK>
00:18:37.705 TxDone
00:18:38.720 RxConfig ch 923100000 bw 0 sf12
00:18:39.732 RxConfig ch 921900000 bw 0 sf12
Rx2 UNCONFIRMED_DOWN size 16 rssi -91 snr 29 Adr 0 AdrAckReq 0 Ack 0 Cnt 0
[EVENT] RECVB 1:aabbff
<-
Received the 3 Byte Hexadecimal data [ aa,bb,ff] from server to Port #1
AT+RECVB
<-
To confirm the received downlink data
1:aabbff
<OK>
AT+RECVB
<-
Once confirmed, the received data is removed. Thus, no output.
1:
<OK>