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Details

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1		-XWiki.ting
	1	+XWiki.Edwin

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193	193	LoRaWAN End node will open two receive windows to receive the downstream data. If the downstream packets arrive the end node at these receive windows, the end node will be able to get this packet and process it.
194	194
195	195	(((
196		-Depends on Class A or Class C, the receive windows will be a little difference.
	196	+Depends on Class A or Class C, the receive windows will be a little difference. The main difference between Class A and Class C:
	197	+
	198	+* **Class A** : Suitable for Battery powered end node. Class A will save a lot of power but it can only receive downlink after each uplink
	199	+* **Class C**: End node can receive downlink immediately but have higher power consumption.
	200	+
	201	+
	202	+
197	197	)))
198	198
199	199	[[image:image-20220531161828-1.png]]
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360	360	= 7. Decrypt a LoRaWAN Packet =
361	361
362	362
363		-(% style="color:blue" %)**1. LHT65 End device configure:**
	369	+(% style="color:blue" %)**1. LHT65N End device configure:**
364	364
365	365	**Change to ABP Mode:  AT+NJM=0**
366	366
367		-**Change to fix frequency:  AT+CHS=904900000**
	373	+**Change to fix frequency:  ​​​​AT+CHE=1**
368	368
369		-**Change to fix DR:  AT+DR=0**
370	370
	376	+**AT+CFG(Print configuration):**
371	371
372		-[[image:image-20220526165525-16.png]]
	378	+[[image:image-20240129170603-7.png||height="697" width="545"]][[image:image-20240129163741-3.png||height="694" width="565"]]
373	373
374	374
375	375
376		-(% style="color:blue" %)**2. In LG02 , configure to receive above message**
	382	+**Configuration: **
377	377
378		-[[image:image-20220526165612-17.png]]
	384	+[[image:image-20240129164219-4.png||height="612" width="440"]]
379	379
380	380
381		-In LG02 console, we can see the hex receive are:
382	382
383		-[[image:image-20220526171112-21.png]]
	388	+(% style="color:blue" %)**2. In LPS8-v2, configure to receive above message**
384	384
	390	+[[image:image-20240129164326-5.png||height="506" width="1114"]]
385	385
386	386
387		-(% style="color:blue" %)**3. Decode the info in web**
	393	+In LPS8-v2 console, we can see the Base64 receive are:
388	388
389		-[[https:~~/~~/lorawan-packet-decoder-0ta6puiniaut.runkit.sh>>url:https://lorawan-packet-decoder-0ta6puiniaut.runkit.sh/]]
	395	+[[image:image-20240129170137-6.png||height="459" width="1116"]]
390	390
391		-Need these three fields:
392	392
393		-LoRa packet hex format: 40c1190126800100024926272bf18bbb6341584e27e23245 (from LG02)
394	394
395		-AT+NWKSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 11 (End node Network Session Key)
	399	+(% style="color:blue" %)**3. Decode the info in CMD(Command prompt window)**
396	396
397		-AT+APPSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 11 (End Node App Session Key)
	401	+LoRa packet Base64 format:  QP~/~/~/~/+AFQACZv8Hjmc8gFTAkhMzU+75 **(from LPS8-v2)**
398	398
	403	+Then the instructions and format parsed in SecureCRT are:  ./node_modules/.bin/lora-packet-decode ~-~-base64 QP~/~/~/~/+AFQACZv8Hjmc8gFTAkhMzU+75
399	399
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]]
401	401
402		-[[image:image-20220526171029-20.png]]
	406	+**Step1: Open CMD, Enter the gateway IP and port.(ssh root@gateway IP -p 22)**
403	403
404		-(((
405		- The FRMPayload is the device payload.
406		-)))
	408	+[[image:image-20240129190752-17.png||height="338" width="901"]]
407	407
	410	+[[image:image-20240129191937-21.png||height="450" width="901"]]
408	408
	412	+
	413	+**Step2: Enter the command to download the LoRa parsing package.(npm install lora-packet)**
	414	+
	415	+[[image:image-20240129192239-22.png||height="416" width="902"]]
	416	+
	417	+[[image:image-20240129192549-23.png||height="459" width="898"]]
	418	+
	419	+
	420	+**Step3: Parse the gateway raw payload.(./node_modules/.bin/lora-packet-decode ~-~-base64 QP~/~/~/~/+AFQACZv8Hjmc8gFTAkhMzU+75)**
	421	+
	422	+
	423	+
	424	+
	425	+[[image:image-20240129192908-24.png||height="477" width="907"]]
	426	+
	427	+
	428	+[[image:image-20240129192954-25.png||height="485" width="916"]]
	429	+
	430	+
	431	+
	432	+
	433	+
	434	+
	435	+
409	409	= 8. Why I see uplink 0x00 periodically on the LHT65 v1.8 firmware =
410	410
411	411
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576	576
577	577
578	578	[[image:image-20221215223215-1.png||height="584" width="1280"]]
579		-

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