dragino lps8-868
@descartes Sir, could you please suggest me the AT commands for communication via serial terminal for OTAA method ??
hello,
i performed:
OTAA-Setup
AT+CDEVEUI=xxxxxxxxxxxxxxxx
AT+CAPPEUI=xxxxxxxxxxxxxxxx
AT+CAPPKEY=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
AT+CTXP=2
AT+CSAVE
AT+IREBOOT=0
@daa792 Thank You so much for the suggestion.
However, after providing the commands as stated, and using command AT+DTRX=1,2,5,0001020304
serial terminal shows āERR+SEND:00ā. Could you advice me where I am going wrong ??
I used AT+CJOINMODE=0 for OTAA method
So @AbhipsitaTechnologie you choose OTAA mode.
What is your full AT+JOIN command , and what answer do you get ?
Something like that ?
AT+CJOIN=1,1,10,8
OK
+CJOIN:OK
and what is the answer for AT+CJOIN=1,1,10,8
(full CJOIN command with parameters)
OK or not ?
if not OK you canāt send succesfully datas
@al1fch on applying āAT+CJOIN?ā,
I obtained ā+CJOIN=1,1,10,8ā followed by āOKā,
however on applying AT+DTRX=1,2,4,00010203, it shows āERR+SEND:00ā
@al1fch OTAA method is not working out, however on using ABP method, and applying the command AT+DTRX=0,1,4,01020304, it shows āOK+SEND:04ā followed by āOK+SENT:01ā. However, on view the TTN gateway live data, I got the result as attached on the screen shots. I could not decipher the frmpayload which i think is bound to be the actual data(sent from e-87 endnode). please do refer to the refer screenshots for a clearer understanding.
'look at and show payload ā is not a gateway job . 
.
(the postman does not open and read the letters !!)
Go to console / Application/End-device screen to see , for your end-device itās own live datas with the raw and clear payload (the second according to your specific payload formatter )
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@al1fch Sir, thank You so much for the reply. I opened the application/end device/live data screen, but nothing is updated on screen, expect for the message ācreation of nodeā¦updated location settingsā. It is only at the gateway live data screen, where i generally obtain the msg
"receive gateway status Metrics:{ackr:0,rxfw:1,rxok:1ā¦ "
and after applying command AT+DTRX=0,1,1,00 from serial terminal, it shows
" receive uplink message DevAddr:260B5D94 FCnt:4, FPort:10, Datarate:SF9BW125 SNR:7.8 RSSI:-59 " at the gateway live data window.
I used the following set of commands as follows:
AT+CJOINMODE=1
AT+CDEVADDR=2******0
AT+CAPPSKEY=4------------------------------8
AT+CNWKSKEY=8-----------------------------7
AT+CULDLMODE=2
AT+CCLASS=0
AT+CCONFIRM=0
AT+CNBTRIALS=0,1
AT+CSAVE
AT+IREBOOT=0
AT+DTRX=0,1,1,00
AT+CSTATUS?
+CSTATUS:07
OK
I dont know why I am not getting any updated msg at the application/end device/live data screen.
Please do suggest me, where I might be wrong. Thanks in advance.
@al1fch the issue was due to wrong frequency selection. finally the end node shows data at the live data session of applications.
Good news !! 
@AbhipsitaTechnologie Please can you tell me what setting did you change regarding frequency?
I have similar problem with E78-868LN22s module and E890 gateway. I was unable to perform join process. Always return +CJOIN: FAIL
Thanks in advance
Im still not able to join by OTAA. I created different end device by ABP activation and when I send data by at+dtrx=0,0,5,0102030405 i receive response: OK+SEND 05 and OK+SENT 01
Status is +CSTATUS: 07 and nothing is received by ttn network server, dont see any payload.
When I send at+dtrx=1,1,5,0102030405 I get negative response ERR+SENT:01 and string ārejionā i suppose that should be ārejoinā instead. This is typing error in firmware stack.
What should I do?
Thanks in advance to all.
Hi to all,
somehow now I am able to send data to TTN server. Problem was in gateway 868 frequency set up. But downlink not working correct. Some messages is passed some not. OTAA is working, JOIN is working with multiple request and with multiple messages:
āFailed to schedule join-accept for transmision on Gateway Serverā
and
āFailed to schedule data downlink for transmision on Gateway Serverā
What do you think what is the problem?
Thank you.