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edited by Mengting Qiu
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To version < 67.1 >
edited by Mengting Qiu
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360 360  = 7. Decrypt a LoRaWAN Packet =
361 361  
362 362  
363 -(% style="color:blue" %)**1. LHT65N End device configure:**
363 +(% style="color:blue" %)**1. LHT65 End device configure:**
364 364  
365 365  **Change to ABP Mode:  AT+NJM=0**
366 366  
367 -**Change to fix frequency:  ​​​​AT+CHE=1**
367 +**Change to fix frequency:  AT+CHS=904900000**
368 368  
369 +**Change to fix DR:  AT+DR=0**
369 369  
370 -**AT+CFG(Print configuration):**
371 371  
372 -[[image:image-20240129170603-7.png||height="697" width="545"]][[image:image-20240129163741-3.png||height="694" width="565"]]
372 +[[image:image-20220526165525-16.png]]
373 373  
374 374  
375 375  
376 -**Configuration: **
376 +(% style="color:blue" %)**2. In LG02 , configure to receive above message**
377 377  
378 -[[image:image-20240129164219-4.png||height="612" width="440"]]
378 +[[image:image-20220526165612-17.png]]
379 379  
380 380  
381 +In LG02 console, we can see the hex receive are:
381 381  
382 -(% style="color:blue" %)**2. In LPS8-v2, configure to receive above message**
383 +[[image:image-20220526171112-21.png]]
383 383  
384 -[[image:image-20240129164326-5.png||height="506" width="1114"]]
385 385  
386 386  
387 -In LPS8-v2 console, we can see the Base64 receive are:
387 +(% style="color:blue" %)**3. Decode the info in web**
388 388  
389 -[[image:image-20240129170137-6.png||height="459" width="1116"]]
389 +[[https:~~/~~/lorawan-packet-decoder-0ta6puiniaut.runkit.sh>>url:https://lorawan-packet-decoder-0ta6puiniaut.runkit.sh/]]
390 390  
391 +Need these three fields:
391 391  
393 +LoRa packet hex format: 40c1190126800100024926272bf18bbb6341584e27e23245 (from LG02)
392 392  
393 -(% style="color:blue" %)**3. Decode the info in SecureCRT**
395 +AT+NWKSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 11 (End node Network Session Key)
394 394  
395 -[[SecureCRT - The rock-solid Telnet and SSH client for Windows, Mac, and Linux (vandyke.com)>>url:https://www.vandyke.com/products/securecrt/]]
397 +AT+APPSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 11 (End Node App Session Key)
396 396  
397 -LoRa packet Base64 format:  QP~/~/~/~/+AFQACZv8Hjmc8gFTAkhMzU+75 (from LPS8-v2)
398 398  
399 -Then the instructions and format parsed in SecureCRT are:  ./node_modules/.bin/lora-packet-decode ~-~-base64 QP~/~/~/~/+AFQACZv8Hjmc8gFTAkhMzU+75
400 +[[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]]
400 400  
402 +[[image:image-20220526171029-20.png]]
401 401  
402 -**Step1: In the SecureCRT access gateway control interface, enter the command to download the parsing package: npm install lora-packet.**
404 +(((
405 + The FRMPayload is the device payload.
406 +)))
403 403  
404 -[[image:image-20240129173810-9.png||height="389" width="1070"]]
405 405  
406 -[[image:image-20240129173932-10.png||height="350" width="1084"]]
407 -
408 -[[image:image-20240129174125-11.png||height="338" width="1078"]]
409 -
410 -
411 -**Step2: Parse the raw data from the gateway.**
412 -
413 -[[image:image-20240129174948-14.png]]
414 -
415 -
416 -[[image:image-20240129175037-15.png||height="619" width="1144"]]
417 -
418 -
419 -
420 -
421 -
422 -
423 -
424 424  = 8. Why I see uplink 0x00 periodically on the LHT65 v1.8 firmware =
425 425  
426 426  
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591 591  
592 592  
593 593  [[image:image-20221215223215-1.png||height="584" width="1280"]]
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