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163	163
164	164	[[image:image-20220524164448-13.png]]
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	166	+
166	166	== 3.5 Trouble Shooting ==
167	167
168	168	User can check the station log in the logread/system log page.
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169	169
170	170	[[image:image-20220524164514-14.png]]
171	171
	173	+
172	172	and recode the station log in the system/Recode log page.
173	173
174	174	[[image:image-20220524164541-15.png]]
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	178	+
176	176	= 4. Downlink =
177	177
178	178	== 4.1 Chirpstack Downlink Note ==
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181	181
182	182	Convert the data to Base64
183	183
	187	+
184	184	[[image:image-20220526090748-4.png]]
185	185
186	186	Check ChripStack downlink DataRate
187	187
	192	+
188	188	[[image:image-20220525101326-11.png]]
189	189
190	190	Make sure the RX2DR is the same in the end node
191	191
	197	+
192	192	== 4.2 Loraserver Downlink Note ==
193	193
194	194	User can use MQTT to send downlink payload to ChirpStack to perform downstream to LoRaWAN End
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209	209
210	210	(((
211	211	MQTT Connect to ChirpStack
	218	+
	219	+
212	212	)))
213	213
214	214	(((
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234	234
235	235	MQTT Connect to ChirpStack
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	245	+
237	237	(((
238	238	(% 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/]]
239	239	)))
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242	242
243	243	Choose to Use Hex for Encode
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	254	+
245	245	If we want send downstream hex 030101 to end node, the BASE64 payload is AwEB
246	246
247	247	[[image:image-20220525104025-15.png]]
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307	307	AwAA is 0x030000's base 64 Encode.
308	308	)))
309	309
	320	+
310	310	== 4.3 Add the decode function in Chirpstack for the payload ==
311	311
312	312	User enters the payload code according to the steps.
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320	320
321	321	[[image:image-20220526091801-6.png]]
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	334	+
323	323	= 5. Multiply Uplink in ChirpStack =
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325	325	(((
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348	348
349	349	[[image:image-20220525104437-22.png]]
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	363	+
351	351	Duplicate transmission in short time
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353	353	[[image:image-20220525104502-23.png]]
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	368	+
355	355	== 5.1 Solution ==
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357	357	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]]
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362	362
363	363	[[image:image-20220525104532-24.png]]
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	379	+
365	365	installation path:
366	366
367	367	[[image:image-20220525104554-25.png]]
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	384	+
369	369	(((
370	370	2. Environment variable settings:.
371	371	)))