Use the AT+SEND command but got an error AT_PARAM_ERROR

LPWAN Modules / EVBs RAK3172
1

Hi,

Here I am trying to send data as per below exercised,

AT
OK
AT+JOIN=?
AT+JOIN=1:0:8:0
OK
AT+SEND=12:01033C666640E6666640E600000000000000000000000000000000000000000000000000003F8000000000471B
OK
+EVT:SEND_CONFIRMED_OK
+EVT:LINKCHECK:0:29:1:-40:4
AT+SEND=12:01033C666640E6666640E600000000000000000000000000000000000000000000000000003F80000000000000000000000000000000000000000000000000471B
AT_PARAM_ERROR
+EVT:TX_DONE
+EVT:LINKCHECK:0:27:1:-38:5

I tried with some data and Its successfully transmit but when try to send more data as per show in log that I got the error AT_PARAM_ERROR so How I can send this data ?

2

Can you provide a complete log?
I see AT+JOIN, but I do not see an corresponding :EVT:JOINED response.
One transmit is with confirmed packet, the other one is unconfirmed packet. But there is no AT+CFM command in the logs.

There is something missing in your log.

One transmission is 45 bytes long, the other one is 65 bytes long.
What LoRaWAN region, what datarate are you using. A payload size of 65 bytes might be too large for the selected datarate. You can check the max payload size per region per datarate in our Documentation Center

3

Thanks for update. Here I am using DR(Data Rate)low so my data transmit with limit so I increase it and its work with short distance. Thank for your time.