Last modified by Xiaoling on 2023/09/19 09:20
<
From version < 130.1 >
edited by Herong Lu
on 2022/07/23 17:39
To version < 162.2 >
edited by Xiaoling
on 2023/06/05 15:32
>
Change comment: There is no comment for this version

Summary

Details

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Title
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1 -LA66 LoRaWAN Module
1 +LA66 LoRaWAN Module User Manual
Author
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1 -XWiki.Lu
1 +XWiki.Xiaoling
Content
... ... @@ -1,4 +1,4 @@
1 -0
1 +
2 2  
3 3  **Table of Contents:**
4 4  
... ... @@ -8,7 +8,6 @@
8 8  
9 9  = 1.  LA66 LoRaWAN Module =
10 10  
11 -
12 12  == 1.1  What is LA66 LoRaWAN Module ==
13 13  
14 14  
... ... @@ -49,10 +49,10 @@
49 49  )))
50 50  
51 51  
52 -
53 53  == 1.2  Features ==
54 54  
55 -* Support LoRaWAN v1.0.4 protocol
53 +
54 +* Support LoRaWAN v1.0.3 protocol
56 56  * Support peer-to-peer protocol
57 57  * TCXO crystal to ensure RF performance on low temperature
58 58  * SMD Antenna pad and i-pex antenna connector
... ... @@ -64,6 +64,7 @@
64 64  
65 65  == 1.3  Specification ==
66 66  
66 +
67 67  * CPU: 32-bit 48 MHz
68 68  * Flash: 256KB
69 69  * RAM: 64KB
... ... @@ -85,547 +85,169 @@
85 85  == 1.4  AT Command ==
86 86  
87 87  
88 -AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
88 +AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in[[ AT Command documents>>https://www.dropbox.com/sh/wtq43za8sykpgta/AABAEE02uEAsRU-JV7bzEhMba?dl=0]].
89 89  
90 90  
91 -
92 92  == 1.5  Dimension ==
93 93  
93 +
94 94  [[image:image-20220718094750-3.png]]
95 95  
96 96  
97 -
98 98  == 1.6  Pin Mapping ==
99 99  
100 100  [[image:image-20220720111850-1.png]]
101 101  
102 102  
103 -
104 104  == 1.7  Land Pattern ==
105 105  
104 +
106 106  [[image:image-20220517072821-2.png]]
107 107  
108 108  
108 += 2.  FAQ =
109 109  
110 -= 2.  LA66 LoRaWAN Shield =
110 +== 2.1  Where to find examples of how to use LA66? ==
111 111  
112 112  
113 -== 2.1  Overview ==
113 +(% class="wikigeneratedid" %)
114 +Below products are made by LA66. User can use their examples as reference:
114 114  
116 +* [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
117 +* [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
115 115  
116 -(((
117 -[[image:image-20220715000826-2.png||height="145" width="220"]]
118 -)))
119 +== 2.2  How to Compile Source Code for LA66? ==
119 119  
120 -(((
121 -
122 -)))
123 123  
124 -(((
125 -(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%) is the Arduino shield base on LA66. Users can use LA66 LoRaWAN Shield to rapidly add LoRaWAN or peer-to-peer LoRa wireless function to  Arduino projects.
126 -)))
122 +Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
127 127  
128 -(((
129 -(((
130 -(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 protocol**(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely.  This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
131 -)))
132 -)))
133 133  
134 -(((
135 -(((
136 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
137 -)))
138 -)))
125 +== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
139 139  
140 -(((
141 -(((
142 -Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)**open-source peer-to-peer LoRa Protocol**(%%) for the none-LoRaWAN application.
143 -)))
144 -)))
145 145  
146 -(((
147 -(((
148 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
149 -)))
150 -)))
128 +Yes, this is possible, user can refer[[ the source code from ASR >>https://github.com/asrlora/asr_lora_6601/tree/master/projects/ASR6601SE-EVAL/examples/lora]]to get examples for how to its I/O Interfaces.
151 151  
152 152  
131 +== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
153 153  
154 -== 2.2  Features ==
155 155  
156 -* Arduino Shield base on LA66 LoRaWAN module
157 -* Support LoRaWAN v1.0.4 protocol
158 -* Support peer-to-peer protocol
159 -* TCXO crystal to ensure RF performance on low temperature
160 -* SMA connector
161 -* Available in different frequency LoRaWAN frequency bands.
162 -* World-wide unique OTAA keys.
163 -* AT Command via UART-TTL interface
164 -* Firmware upgradable via UART interface
165 -* Ultra-long RF range
134 +Instruction for LA66 Peer to Peer firmware :[[ Instruction >>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.Instruction for LA66 Peer to Peer firmware.WebHome]]
166 166  
167 -== 2.3  Specification ==
168 168  
169 -* CPU: 32-bit 48 MHz
170 -* Flash: 256KB
171 -* RAM: 64KB
172 -* Input Power Range: 1.8v ~~ 3.7v
173 -* Power Consumption: < 4uA.
174 -* Frequency Range: 150 MHz ~~ 960 MHz
175 -* Maximum Power +22 dBm constant RF output
176 -* High sensitivity: -148 dBm
177 -* Temperature:
178 -** Storage: -55 ~~ +125℃
179 -** Operating: -40 ~~ +85℃
180 -* Humidity:
181 -** Storage: 5 ~~ 95% (Non-Condensing)
182 -** Operating: 10 ~~ 95% (Non-Condensing)
183 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
184 -* LoRa Rx current: <9 mA
185 -* I/O Voltage: 3.3v
137 +== 2.5 How can i use J-LInk to debug LA66? ==
186 186  
187 -== 2.4  LED ==
188 188  
189 -~1. The LED lights up red when there is an upstream data packet
190 -2. When the network is successfully connected, the green light will be on for 5 seconds
191 -3. Purple light on when receiving downlink data packets
140 +(% style="color:#037691" %)**The steps are as follows:**
192 192  
193 193  
194 -== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
143 +(% style="color:blue" %)**1. Install J-Link software from**
195 195  
196 -Show connection diagram：
145 +[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
197 197  
198 -[[image:image-20220723170210-2.png||height="908" width="681"]]
199 199  
200 -1.open Arduino IDE
148 +(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
201 201  
202 -[[image:image-20220723170545-4.png]]
203 203  
204 -2.Open project
151 +[[image:image-20230605151850-1.png]]
205 205  
206 -[[image:image-20220723170750-5.png]]
207 207  
208 -3.Click the button marked 1 in the figure to compile, and after the compilation is complete, click the button marked 2 in the figure to upload
154 +[[image:image-20230605151850-2.png]]
209 209  
210 -[[image:image-20220723171228-6.png]]
211 211  
212 -4.After the upload is successful, open the serial port monitoring and send the AT command
157 +(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
213 213  
159 +**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
214 214  
215 -== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
161 +**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
216 216  
163 +**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
217 217  
165 +**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
218 218  
219 -== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
167 +[[image:image-20230605151850-3.png||height="629" width="1182"]]
220 220  
169 +(% style="display:none" %) (%%)
221 221  
171 +(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
222 222  
223 -== 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
173 +(% style="display:none" %) [[image:image-20230605151850-4.png]]
224 224  
225 225  
226 -=== 2.8.1  Items needed for update ===
176 +(% style="color:blue" %)**Add ASR6601 256KB Flash to Flash Download**
227 227  
228 -1. LA66 LoRaWAN Shield
229 -1. Arduino
230 -1. USB TO TTL Adapter
178 +[[image:image-20230605152412-12.png]]
231 231  
232 -[[image:image-20220602100052-2.png||height="385" width="600"]]
233 233  
181 +[[image:image-20230605151851-6.png]]
234 234  
235 -=== 2.8.2  Connection ===
236 236  
184 +(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
237 237  
238 -[[image:image-20220602101311-3.png||height="276" width="600"]]
186 +[[image:image-20230605151851-7.png]]
239 239  
188 +[[image:image-20230605151851-8.png]]
240 240  
241 -(((
242 -(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
243 -)))
244 244  
245 -(((
246 -(% style="background-color:yellow" %)**GND  <-> GND
247 -TXD  <->  TXD
248 -RXD  <->  RXD**
249 -)))
191 +(% style="color:red" %)Note**: After debug, user should change the Flash address back to 0x0800D000, and upload the OTA bootloader to LA66. Otherwise, the compiled program doesn’t support OTA update.**
250 250  
251 251  
252 -Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
194 +(% style="color:blue" %)**6. Comment the low power function in main.c.**
253 253  
254 -Connect USB TTL Adapter to PC after connecting the wires
255 255  
197 +[[image:image-20230605151851-9.png]]
256 256  
257 -[[image:image-20220602102240-4.png||height="304" width="600"]]
258 258  
200 +(% style="color:blue" %)**Click Debug mode to debug.**
259 259  
260 -=== 2.8.3  Upgrade steps ===
202 +[[image:image-20230605151851-10.png||height="293" width="1275"]]
261 261  
262 262  
263 -==== 1.  Switch SW1 to put in ISP position ====
205 +[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
264 264  
207 +(% style="display:none" %) (%%)
265 265  
266 -[[image:image-20220602102824-5.png||height="306" width="600"]]
209 += 3.  Order Info =
267 267  
268 268  
212 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**
269 269  
270 -==== 2.  Press the RST switch once ====
214 +(% style="color:blue" %)**XXX**(%%): The default frequency band
271 271  
216 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
217 +* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
218 +* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
219 +* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
220 +* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
221 +* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
222 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
223 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
224 +* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
272 272  
273 -[[image:image-20220602104701-12.png||height="285" width="600"]]
226 += 4.  FCC Statement =
274 274  
275 275  
229 +(% style="color:red" %)**FCC Caution:**
276 276  
277 -==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
231 +Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
278 278  
233 +This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
279 279  
280 -(((
281 -(% style="color:blue" %)**1. Software download link:  [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/>>https://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/]]**
282 -)))
283 283  
236 +(% style="color:red" %)**IMPORTANT NOTE: **
284 284  
285 -[[image:image-20220602103227-6.png]]
238 +(% style="color:red" %)**Note:**(%%) This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
286 286  
240 +—Reorient or relocate the receiving antenna.
287 287  
288 -[[image:image-20220602103357-7.png]]
242 +—Increase the separation between the equipment and receiver.
289 289  
244 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
290 290  
246 +—Consult the dealer or an experienced radio/TV technician for help.
291 291  
292 -(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
293 -(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
294 294  
249 +(% style="color:red" %)**FCC Radiation Exposure Statement: **
295 295  
296 -[[image:image-20220602103844-8.png]]
251 +This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
297 297  
298 -
299 -
300 -(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
301 -(% style="color:blue" %)**3. Select the bin file to burn**
302 -
303 -
304 -[[image:image-20220602104144-9.png]]
305 -
306 -
307 -[[image:image-20220602104251-10.png]]
308 -
309 -
310 -[[image:image-20220602104402-11.png]]
311 -
312 -
313 -
314 -(% class="wikigeneratedid" id="HClicktostartthedownload" %)
315 -(% style="color:blue" %)**4. Click to start the download**
316 -
317 -[[image:image-20220602104923-13.png]]
318 -
319 -
320 -
321 -(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
322 -(% style="color:blue" %)**5. Check update process**
323 -
324 -
325 -[[image:image-20220602104948-14.png]]
326 -
327 -
328 -
329 -(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
330 -(% style="color:blue" %)**The following picture shows that the burning is successful**
331 -
332 -[[image:image-20220602105251-15.png]]
333 -
334 -
335 -
336 -= 3.  LA66 USB LoRaWAN Adapter =
337 -
338 -
339 -== 3.1  Overview ==
340 -
341 -
342 -[[image:image-20220715001142-3.png||height="145" width="220"]]
343 -
344 -
345 -(((
346 -(% style="color:blue" %)**LA66 USB LoRaWAN Adapter**(%%) is designed to fast turn USB devices to support LoRaWAN wireless features. It combines a CP2101 USB TTL Chip and LA66 LoRaWAN module which can easy to add LoRaWAN wireless feature to PC / Mobile phone or an embedded device that has USB Interface.
347 -)))
348 -
349 -(((
350 -(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 protocol**(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
351 -)))
352 -
353 -(((
354 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
355 -)))
356 -
357 -(((
358 -Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)**open-source peer-to-peer LoRa Protocol**(%%) for the none-LoRaWAN application.
359 -)))
360 -
361 -(((
362 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
363 -)))
364 -
365 -
366 -
367 -== 3.2  Features ==
368 -
369 -* LoRaWAN USB adapter base on LA66 LoRaWAN module
370 -* Ultra-long RF range
371 -* Support LoRaWAN v1.0.4 protocol
372 -* Support peer-to-peer protocol
373 -* TCXO crystal to ensure RF performance on low temperature
374 -* Spring RF antenna
375 -* Available in different frequency LoRaWAN frequency bands.
376 -* World-wide unique OTAA keys.
377 -* AT Command via UART-TTL interface
378 -* Firmware upgradable via UART interface
379 -* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
380 -
381 -== 3.3  Specification ==
382 -
383 -* CPU: 32-bit 48 MHz
384 -* Flash: 256KB
385 -* RAM: 64KB
386 -* Input Power Range: 5v
387 -* Frequency Range: 150 MHz ~~ 960 MHz
388 -* Maximum Power +22 dBm constant RF output
389 -* High sensitivity: -148 dBm
390 -* Temperature:
391 -** Storage: -55 ~~ +125℃
392 -** Operating: -40 ~~ +85℃
393 -* Humidity:
394 -** Storage: 5 ~~ 95% (Non-Condensing)
395 -** Operating: 10 ~~ 95% (Non-Condensing)
396 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
397 -* LoRa Rx current: <9 mA
398 -
399 -== 3.4  Pin Mapping & LED ==
400 -
401 -
402 -
403 -== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
404 -
405 -
406 -(((
407 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
408 -)))
409 -
410 -
411 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
412 -
413 -
414 -[[image:image-20220723100027-1.png]]
415 -
416 -
417 -Open the serial port tool
418 -
419 -[[image:image-20220602161617-8.png]]
420 -
421 -[[image:image-20220602161718-9.png||height="457" width="800"]]
422 -
423 -
424 -
425 -(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
426 -
427 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
428 -
429 -
430 -[[image:image-20220602161935-10.png||height="498" width="800"]]
431 -
432 -
433 -
434 -(% style="color:blue" %)**3. See Uplink Command**
435 -
436 -Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
437 -
438 -example: AT+SENDB=01,02,8,05820802581ea0a5
439 -
440 -[[image:image-20220602162157-11.png||height="497" width="800"]]
441 -
442 -
443 -
444 -(% style="color:blue" %)**4. Check to see if TTN received the message**
445 -
446 -[[image:image-20220602162331-12.png||height="420" width="800"]]
447 -
448 -
449 -
450 -== 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
451 -
452 -
453 -**Use python as an example：**[[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_WindosPC.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_WindosPC.py]]
454 -
455 -(**Raspberry Pi example: **[[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py]])
456 -
457 -(% style="color:red" %)**Preconditions:**
458 -
459 -(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
460 -
461 -(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
462 -
463 -
464 -
465 -(% style="color:blue" %)**Steps for usage:**
466 -
467 -(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
468 -
469 -(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
470 -
471 -[[image:image-20220602115852-3.png||height="450" width="1187"]]
472 -
473 -
474 -
475 -== 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
476 -
477 -
478 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
479 -
480 -
481 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
482 -
483 -[[image:image-20220723100439-2.png]]
484 -
485 -
486 -
487 -(% style="color:blue" %)**2. Install Minicom in RPi.**
488 -
489 -(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
490 -
491 - (% style="background-color:yellow" %)**apt update**
492 -
493 - (% style="background-color:yellow" %)**apt install minicom**
494 -
495 -
496 -Use minicom to connect to the RPI's terminal
497 -
498 -[[image:image-20220602153146-3.png||height="439" width="500"]]
499 -
500 -
501 -
502 -(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
503 -
504 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
505 -
506 -
507 -[[image:image-20220602154928-5.png||height="436" width="500"]]
508 -
509 -
510 -
511 -(% style="color:blue" %)**4. Send Uplink message**
512 -
513 -Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
514 -
515 -example: AT+SENDB=01,02,8,05820802581ea0a5
516 -
517 -
518 -[[image:image-20220602160339-6.png||height="517" width="600"]]
519 -
520 -
521 -
522 -Check to see if TTN received the message
523 -
524 -[[image:image-20220602160627-7.png||height="369" width="800"]]
525 -
526 -
527 -
528 -== 3.8  Example: Use of LA66 USB LoRaWAN Module and DRAGINO-LA66-APP. ==
529 -
530 -=== 3.8.1 DRAGINO-LA66-APP ===
531 -
532 -[[image:image-20220723102027-3.png]]
533 -
534 -==== Overview： ====
535 -
536 -DRAGINO-LA66-APP is a mobile APP for LA66 USB LoRaWAN Module. DRAGINO-LA66-APP can obtain the positioning information of the mobile phone and send it to the LoRaWAN platform through the LA66 USB LoRaWAN Module.
537 -
538 -View the communication signal strength between the node and the gateway through the RSSI value（DRAGINO-LA66-APP currently only supports Android system）
539 -
540 -==== Conditions of Use： ====
541 -
542 -Requires a type-c to USB adapter
543 -
544 -[[image:image-20220723104754-4.png]]
545 -
546 -==== Use of APP: ====
547 -
548 -Function and page introduction
549 -
550 -[[image:image-20220723113448-7.png||height="1481" width="670"]]
551 -
552 -1.Display LA66 USB LoRaWAN Module connection status
553 -
554 -2.Check and reconnect
555 -
556 -3.Turn send timestamps on or off
557 -
558 -4.Display LoRaWan connection status
559 -
560 -5.Check LoRaWan connection status
561 -
562 -6.The RSSI value of the node when the ACK is received
563 -
564 -7.Node's Signal Strength Icon
565 -
566 -8.Set the packet sending interval of the node in seconds
567 -
568 -9.AT command input box
569 -
570 -10.Send AT command button
571 -
572 -11.Node log box
573 -
574 -12.clear log button
575 -
576 -13.exit button
577 -
578 -LA66 USB LoRaWAN Module not connected
579 -
580 -[[image:image-20220723110520-5.png||height="903" width="677"]]
581 -
582 -Connect LA66 USB LoRaWAN Module
583 -
584 -[[image:image-20220723110626-6.png||height="906" width="680"]]
585 -
586 -=== 3.8.2 Use DRAGINO-LA66-APP to obtain positioning information and send it to TTNV3 through LA66 USB LoRaWAN Module and integrate it into Node-RED ===
587 -
588 -1.Register LA66 USB LoRaWAN Module to TTNV3
589 -
590 -[[image:image-20220723134549-8.png]]
591 -
592 -2.Open Node-RED,And import the JSON file to generate the flow
593 -
594 -Sample JSON file please go to this link to download：放置JSON文件的链接
595 -
596 -For the usage of Node-RED, please refer to: [[http:~~/~~/8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/>>http://8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/]]
597 -
598 -The following is the positioning effect map
599 -
600 -[[image:image-20220723144339-1.png]]
601 -
602 -== 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
603 -
604 -The LA66 USB LoRaWAN Module is the same as the LA66 LoRaWAN Shield update method
605 -
606 -Just use the yellow jumper cap to short the BOOT corner and the RX corner, and then press the RESET button (without the jumper cap, you can directly short the BOOT corner and the RX corner with a wire to achieve the same effect)
607 -
608 -[[image:image-20220723150132-2.png]]
609 -
610 -
611 -= 4.  Order Info =
612 -
613 -
614 -**Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
615 -
616 -
617 -(% style="color:blue" %)**XXX**(%%): The default frequency band
618 -
619 -* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
620 -* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
621 -* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
622 -* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
623 -* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
624 -* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
625 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
626 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
627 -* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
628 -
629 -= 5.  Reference =
630 -
631 -* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
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