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163	163
164	164	[[image:image-20220524164448-13.png]]
165	165
166		-
167	167	== 3.5 Trouble Shooting ==
168	168
169	169	User can check the station log in the logread/system log page.
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170	170
171	171	[[image:image-20220524164514-14.png]]
172	172
173		-
174	174	and recode the station log in the system/Recode log page.
175	175
176	176	[[image:image-20220524164541-15.png]]
177	177
178		-
179	179	= 4. Downlink =
180	180
181	181	== 4.1 Chirpstack Downlink Note ==
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184	184
185	185	Convert the data to Base64
186	186
187		-
188	188	[[image:image-20220526090748-4.png]]
189	189
190	190	Check ChripStack downlink DataRate
191	191
192		-
193	193	[[image:image-20220525101326-11.png]]
194	194
195	195	Make sure the RX2DR is the same in the end node
196	196
197		-
198	198	== 4.2 Loraserver Downlink Note ==
199	199
200	200	User can use MQTT to send downlink payload to ChirpStack to perform downstream to LoRaWAN End
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215	215
216	216	(((
217	217	MQTT Connect to ChirpStack
218		-
219		-
220	220	)))
221	221
222	222	(((
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242	242
243	243	MQTT Connect to ChirpStack
244	244
245		-
246	246	(((
247	247	(% style="color:red" %)Note: Chirpstack use base64 to downlink, so need to convert the downlink payload from HEX to base64 [[https:~~/~~/base64.us/>>url:https://base64.us/]]
248	248	)))
...	...	@@ -251,7 +251,6 @@
251	251
252	252	Choose to Use Hex for Encode
253	253
254		-
255	255	If we want send downstream hex 030101 to end node, the BASE64 payload is AwEB
256	256
257	257	[[image:image-20220525104025-15.png]]
...	...	@@ -317,7 +317,6 @@
317	317	AwAA is 0x030000's base 64 Encode.
318	318	)))
319	319
320		-
321	321	== 4.3 Add the decode function in Chirpstack for the payload ==
322	322
323	323	User enters the payload code according to the steps.
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331	331
332	332	[[image:image-20220526091801-6.png]]
333	333
334		-
335	335	= 5. Multiply Uplink in ChirpStack =
336	336
337	337	(((
...	...	@@ -360,12 +360,10 @@
360	360
361	361	[[image:image-20220525104437-22.png]]
362	362
363		-
364	364	Duplicate transmission in short time
365	365
366	366	[[image:image-20220525104502-23.png]]
367	367
368		-
369	369	== 5.1 Solution ==
370	370
371	371	This example uses the Windows version as a template, other versions can refer to this. Similiar reference: [[https:~~/~~/confluence.alitecs.de/plugins/servlet/mobile?contentId=79790102#content/view/79790102>>url:https://confluence.alitecs.de/plugins/servlet/mobile?contentId=79790102#content/view/79790102]]
...	...	@@ -376,12 +376,10 @@
376	376
377	377	[[image:image-20220525104532-24.png]]
378	378
379		-
380	380	installation path:
381	381
382	382	[[image:image-20220525104554-25.png]]
383	383
384		-
385	385	(((
386	386	2. Environment variable settings:.
387	387	)))
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396	396
397	397	[[image:image-20220524165433-33.png]]
398	398
399		-
400	400	3)Modify the system variable Path and add C:\Go\bin\:
401	401
402	402	[[image:image-20220524165452-34.png]]