Changes for page LoRaWAN Communication Debug
Last modified by Edwin Chen on 2025/01/29 20:30
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... ... @@ -1,9 +1,5 @@ 1 1 **~ Contents:** 2 2 3 -((( 4 - 5 -))) 6 - 7 7 {{toc/}} 8 8 9 9 ... ... @@ -23,7 +23,7 @@ 23 23 * If the device is sending join request to server? 24 24 * What frequency the device is sending? 25 25 26 -[[image:image -20220526163523-1.png]]22 +[[image:https://wiki.dragino.com/images/thumb/0/0f/OTAA_Join-1.jpg/600px-OTAA_Join-1.jpg||height="316" width="600"]] 27 27 28 28 Console Output from End device to see the transmit frequency 29 29 ... ... @@ -33,7 +33,7 @@ 33 33 * If the gateway receive the Join request packet from sensor? (If this fail, check if the gateway and sensor works on the match frequency) 34 34 * If the gateway gets the Join Accept message from server and transmit it via LoRa? 35 35 36 -[[image:image-2 0220526163608-2.png]]32 +[[image:https://wiki.dragino.com/images/thumb/1/1c/OTAA_Join-2.png/600px-OTAA_Join-2.png||height="325" width="600"]] 37 37 38 38 Console Output from Gateway to see packets between end node and server. 39 39 ... ... @@ -44,7 +44,7 @@ 44 44 * If the server send back a Join Accept for the Join Request? if not, check if the keys from the device match the keys you put in the server, or try to choose a different server route for this end device. 45 45 * If the Join Accept message are in correct frequency? If you set the server to use US915 band, and your end node and gateway is EU868, you will see the Join Accept message are in US915 band so no possible to Join success. 46 46 47 -[[image:image -20220526163633-3.png]]43 +[[image:https://wiki.dragino.com/images/thumb/5/5c/OTAA_Join-3.png/600px-OTAA_Join-3.png||height="301" width="600"]] 48 48 49 49 The Traffic for the End node in the server, use TTN as example 50 50 ... ... @@ -53,11 +53,11 @@ 53 53 54 54 * If this data page shows the Join Request message from the end node? If not, most properly you have wrong settings in the keys. Keys in the server doesn't match the keys in End Node. 55 55 56 -[[image:image- 20220526163704-4.png]]52 +[[image:https://wiki.dragino.com/images/thumb/e/ec/OTAA_Join-4.png/600px-OTAA_Join-4.png||height="181" width="600"]] 57 57 58 58 The data for the end device set in server 59 59 60 -[[image:image- 20220526163732-5.png]]56 +[[image:https://wiki.dragino.com/images/thumb/b/b1/OTAA_Join-5.png/600px-OTAA_Join-5.png||height="166" width="600"]] 61 61 62 62 Check if OTAA Keys match the keys in device 63 63 ... ... @@ -248,36 +248,44 @@ 248 248 **For End Node** 249 249 ))) 250 250 251 -((( 252 252 we can use AT Command (AT+CFG) to check the RX1 configure and RX2 configure. as below: 248 + 249 +(% class="box infomessage" %) 250 +((( 251 + AT+RX2FQ=869525000 ~-~--> The RX2 Window frequency 253 253 ))) 254 254 254 +(% class="box infomessage" %) 255 255 ((( 256 - 256 + AT+RX2DR=3 ~-~--> The RX2 DataRate 257 257 ))) 258 258 259 +(% class="box infomessage" %) 259 259 ((( 261 + AT+RX1DL=1000 ~-~--> Receive Delay 1 262 +))) 263 + 260 260 (% class="box infomessage" %) 261 261 ((( 262 -AT+RX2FQ=869525000 ~-~--> The RX2 Window frequency 263 -AT+RX2DR=3 ~-~--> The RX2 DataRate 264 -AT+RX1DL=1000 ~-~--> Receive Delay 1 265 -AT+RX2DL=2000 ~-~--> Receive Delay 2 266 + AT+RX2DL=2000 ~-~--> Receive Delay 2 266 266 ))) 267 -))) 268 268 269 269 ((( 270 270 **when the device running, we can see below info:** 271 271 ))) 272 272 273 -{{{ [12502]***** UpLinkCounter= 0 ***** 274 - [12503]TX on freq 868500000 Hz at DR 0 275 - [13992]txDone 276 - [15022]RX on freq 868500000 Hz at DR 0 --> RX1 window open at frequency: 868500000, DR0, after 15022-13992= 1030ms of txdone 277 - [15222]rxTimeOut --> no packet arrive in RX1 window. (duration: 200ms) 278 - [15987]RX on freq 869525000 Hz at DR 3 --> RX2 window open at frequency: 869525000, DR3, after 15987-13992= 1995ms of txdone 279 - [16027]rxTimeOut --> no packet arrive in RX2 window. (duration: 40 ms)}}} 273 +((( 274 + 275 +))) 280 280 277 +{{{ [12502]***** UpLinkCounter= 0 ***** 278 + [12503]TX on freq 868500000 Hz at DR 0 279 + [13992]txDone 280 + [15022]RX on freq 868500000 Hz at DR 0 --> RX1 window open at frequency: 868500000, DR0, after 15022-13992= 1030ms of txdone 281 + [15222]rxTimeOut --> no packet arrive in RX1 window. (duration: 200ms) 282 + [15987]RX on freq 869525000 Hz at DR 3 --> RX2 window open at frequency: 869525000, DR3, after 15987-13992= 1995ms of txdone 283 + [16027]rxTimeOut --> no packet arrive in RX2 window. (duration: 40 ms)}}} 284 + 281 281 ((( 282 282 283 283 ))) ... ... @@ -286,16 +286,16 @@ 286 286 **Another message:** 287 287 ))) 288 288 289 -{{{ [12502]***** UpLinkCounter= 0 ***** 290 - [12503]TX on freq 868100000 Hz at DR 0 291 - [13992]txDone 292 - [15022]RX on freq 868100000 Hz at DR 0 293 - [15222]rxTimeOut 294 - [15987]RX on freq 869525000 Hz at DR 3 295 - [16185]rxDone --> We have got the downstream packet. 296 - Rssi= -64 297 - Receive data 298 - 1:0012345678}}} 293 +{{{ [12502]***** UpLinkCounter= 0 ***** 294 + [12503]TX on freq 868100000 Hz at DR 0 295 + [13992]txDone 296 + [15022]RX on freq 868100000 Hz at DR 0 297 + [15222]rxTimeOut 298 + [15987]RX on freq 869525000 Hz at DR 3 299 + [16185]rxDone --> We have got the downstream packet. 300 + Rssi= -64 301 + Receive data 302 + 1:0012345678}}} 299 299 300 300 == 5.3 If problem doesn’t solve == 301 301 ... ... @@ -372,13 +372,13 @@ 372 372 373 373 AT+APPSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 11 (End Node App Session Key) 374 374 379 +((( 375 375 [[https:~~/~~/lorawan-packet-decoder-0ta6puiniaut.runkit.sh/?data=40c1190126800100024926272bf18bbb6341584e27e23245&nwkskey=00000000000000000000000000000111&appskey=00000000000000000000000000000111>>url:https://lorawan-packet-decoder-0ta6puiniaut.runkit.sh/?data=40c1190126800100024926272bf18bbb6341584e27e23245&nwkskey=00000000000000000000000000000111&appskey=00000000000000000000000000000111]] 381 +))) 376 376 377 377 [[image:https://wiki.dragino.com/images/7/77/Decrypt_a_LoRaWAN_Packet4.png||alt="Decrypt a LoRaWAN Packet4.png" height="390" width="558"]] 378 378 379 -((( 380 - The FRMPayload is the device payload. 381 -))) 385 +The FRMPayload is the device payload. 382 382 383 383 384 384 = 8. Why i see uplink 0x00 periodcally on the LHT65 v1.8 firmware = ... ... @@ -409,13 +409,13 @@ 409 409 410 410 * ((( 411 411 If a node is registered with multiple servers, it may also cause the "mic mismatch" error. 412 - 413 - 414 414 ))) 415 415 416 416 = 10. Why i got the payload only with "0x00" or "AA~=~="? = 417 417 418 -* If you are using US915, AU915 and AS923 frequencies.This is normal phenomenon. 420 +* ((( 421 +If you are using US915, AU915 and AS923 frequencies.This is normal phenomenon. 422 +))) 419 419 420 420 ((( 421 421 When using the frequency mentioned above, the server sometimes adjusts the rate of the node, because the node defaults to the adaptive rate. ... ... @@ -422,46 +422,23 @@ 422 422 ))) 423 423 424 424 ((( 425 -When the server adjusts your node rate to 0, the maximum payload length is 11 bytes. The server sometimes sends an ADR packet to the node, and the node will reply to the server after receiving the ADR packet, but the number of payload bytes exceeds the limit,so it will send a normal uplink packet, and an additional 00 data packet.429 +When the server adjusts your node rate to 0, the maximum payload length is 11 bytes. The server sometimes sends an ADR packet to the node, 426 426 ))) 427 427 432 +((( 433 +and the node will reply to the server after receiving the ADR packet, but the number of payload bytes exceeds the limit, 434 +))) 435 + 436 +((( 437 +so it will send a normal uplink packet, and an additional 00 data packet. 438 +))) 439 + 428 428 * ((( 429 429 Solution: Use the decoder to filter out this 00 packet. 430 430 ))) 431 431 * ((( 432 -Some node decoders may not have filtering function, or you need decoders of other servers and formats. Please send an email to [[david.huang@dragino.cc>>mailto:david.huang@dragino.cc]] 433 - 434 - 435 - 444 +Some node decoders may not have filtering function, or you need decoders of other servers and formats. Please send an email to david.huang@dragino.cc 436 436 ))) 437 437 438 -= 11. Why my Dev EUI and APP EUI is 0x000000000000, how to solve? = 439 - 440 -It is possible the keys is erased during upgrading of firmware. and the console output shows below after AT+CFG 441 - 442 -AT+APPKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 443 - 444 -AT+NWKSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 445 - 446 -AT+APPSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 447 - 448 -AT+APPEUI=00 00 00 00 00 00 00 00 449 - 450 - 451 -You can get the keys from the box sticker or send mail to Dragino Support to check keys with the provided SN number. 452 - 453 -You can rewrites the keys by running commands in AT Console 454 - 455 -For example: 456 - 457 -AT+APPKEY=85 41 47 20 45 58 28 14 16 82 A0 F0 80 0D DD EE 458 - 459 -AT+NWKSKEY=AA CC B0 20 30 45 37 32 14 1E 14 93 E2 3B 20 11 460 - 461 -AT+APPSKEY=11 23 02 20 30 20 30 60 80 20 20 30 30 20 10 10 462 - 463 -AT+APPEUI=2C 45 47 E3 24 12 23 24 464 - 465 -(Any combination of 16 bit codes can be used) 466 - 467 - 447 +(% class="wikigeneratedid" id="H" %) 448 +
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