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2	2
3	3	{{toc/}}
4	4
5		-
6		-
7		-
8	8	= 1. Introduction =
9	9
10	10	(% style="color:black" %)The ChirpStack open-source LoRaWAN Network Server stack provides open-source components for LoRaWAN networks And the Chirpstack supports the users in building a private LoRaWAN Server. For more info please refer to this [[link>>url:https://www.chirpstack.io/]]
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33	33	)))
34	34	)))
35	35
36		-
37		-
38	38	= 2. Semtech UDP =
39	39
40	40	== 2.1 Step 1. Add the Network-servers ==
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103	103
104	104	gateway Status
105	105
106		-
107	107	= 3. Gateway Registration for Basics Station =
108	108
109	109	== Introduction ==
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125	125
126	126	A gateway that can access the internet normally
127	127
128		-
129	129	== 3.1 Add Gateway ==
130	130
131	131	[[image:image-20220524164205-10.png]]
132	132
133		-
134	134	== 3.2 Access the gateway GUI ==
135	135
136	136	Access the gateway GUI interface of LoRaWAN~-~->LoRaWAN ~-~- Basic Station
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151	151	(% class="wikigeneratedid" %)
152	152	[[image:image-20220524164341-12.png]]
153	153
154		-
155	155	== 3.3 Start Station ==
156	156
157	157	When the user has finished the configuration, Please click Sace&Apply to start station to connect ChirpStack
158	158
159		-
160	160	== 3.4 Successful Connection ==
161	161
162	162	If user completes the above steps, which will see live date in the ChirpStack.
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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	)))
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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]]
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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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329	329
330	330	[[image:image-20220526091602-5.png]]
331	331
332		-[[image:image-20220526091801-6.png]]
	311	+[[image:image-20220525104258-19.png]]
333	333
334		-
335	335	= 5. Multiply Uplink in ChirpStack =
336	336
337	337	(((
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342	342	ChirpStack will auto adjust nbtrans according to uplink rssi. [[link to source>>url:https://github.com/brocaar/chirpstack-network-server/blob/master/internal/adr/adr.go]]
343	343	)))
344	344
345		-[[image:image-20220526091912-7.png]]
	323	+[[image:image-20220525104328-20.png]]
346	346
347	347	(((
348	348	nbtrans is a field of ADR message, in unconfirm mode, it tells end node how many time it needs to transmit for every frame.