<
From version < 63.2 >
edited by Xiaoling
on 2022/05/25 10:12
To version < 80.1 >
edited by Xiaoling
on 2022/05/26 08:51
>
Change comment: Uploaded new attachment "image-20220526085155-1.png", version {1}

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169 169  
170 170  Check ChripStack downlink DataRate
171 171  
172 -[[image:image-20220524164724-18.png]]
172 +[[image:image-20220525101326-11.png]]
173 173  
174 174  Make sure the RX2DR is the same in the end node
175 175  
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189 189  User name: User name Password: password
190 190  )))
191 191  
192 -[[image:image-20220524164806-19.png]]
192 +[[image:image-20220525101401-12.png]]
193 193  
194 194  (((
195 195  MQTT Connect to ChirpStack
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214 214  Payload: {"confirmed":true,"fPort":2,"data":"AwEB"}
215 215  )))
216 216  
217 -[[image:image-20220524164829-20.png]]
217 +[[image:image-20220525101436-13.png]]
218 218  
219 219  MQTT Connect to ChirpStack
220 220  
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222 222  (% 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/]]
223 223  )))
224 224  
225 -[[image:image-20220524164849-21.png]]
225 +[[image:image-20220525101505-14.png]]
226 226  
227 227  Choose to Use Hex for Encode
228 228  
229 229  If we want send downstream hex 030101 to end node, the BASE64 payload is AwEB
230 230  
231 -[[image:image-20220524164907-22.png]]
231 +[[image:image-20220525104025-15.png]]
232 232  
233 233  (((
234 234  Downlink payload encode javescript code: 可以在网站上运行以下Javsscript代码:
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295 295  
296 296  User enters the payload code according to the steps.
297 297  
298 -[[image:image-20220524165001-23.png]]
298 +[[image:image-20220525104051-16.png]]
299 299  
300 -[[image:image-20220524165028-24.png]]
300 +[[image:image-20220525104155-17.png]]
301 301  
302 -[[image:image-20220524165100-25.png]]
302 +[[image:image-20220525104223-18.png]]
303 303  
304 -[[image:image-20220524165116-26.png]]
304 +[[image:image-20220525104258-19.png]]
305 305  
306 306  = 5. Multiply Uplink in ChirpStack =
307 307  
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313 313  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]]
314 314  )))
315 315  
316 -[[image:image-20220524165141-27.png]]
316 +[[image:image-20220525104328-20.png]]
317 317  
318 318  (((
319 319  nbtrans is a field of ADR message, in unconfirm mode, it tells end node how many time it needs to transmit for every frame.
320 320  )))
321 321  
322 -[[image:image-20220524165158-28.png]]
322 +[[image:image-20220525104359-21.png]]
323 323  
324 324  (((
325 325  Above behaviour will cause the platform shows below two cases of error:
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329 329  Error of duplicate Frame Counter
330 330  )))
331 331  
332 -[[image:image-20220524165301-29.png]]
332 +[[image:image-20220525104437-22.png]]
333 333  
334 334  Duplicate transmission in short time
335 335  
336 -[[image:image-20220524165319-30.png]]
336 +[[image:image-20220525104502-23.png]]
337 337  
338 338  == 5.1 Solution ==
339 339  
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343 343  ~1. Install the GO compilation environment: Download the corresponding version of the Go compiler at [[https:~~/~~/go.dev/dl/>>url:https://go.dev/dl/]] and install it.
344 344  )))
345 345  
346 -[[image:image-20220524165339-31.png]]
346 +[[image:image-20220525104532-24.png]]
347 347  
348 348  installation path:
349 349  
350 -[[image:image-20220524165400-32.png]]
350 +[[image:image-20220525104554-25.png]]
351 351  
352 352  (((
353 353  2. Environment variable settings:.
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437 437  )))
438 438  )))
439 439  
440 -[[image:image-20220524165659-40.png]]
440 +[[image:image-20220525104647-26.png]]
441 441  
442 442  Finish.
443 443  
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