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Last modified by Xiaoling on 2023/09/19 09:20
From version 162.5
edited by Xiaoling
on 2023/09/18 16:35
Change comment: There is no comment for this version
To version 134.1
edited by Herong Lu
on 2022/07/26 09:19
Change comment: There is no comment for this version

Summary

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Title
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1 -LA66 LoRaWAN Module User Manual
1 +LA66 LoRaWAN Module
Author
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1 -XWiki.Xiaoling
1 +XWiki.Lu
Content
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1 -
1 +0
2 2  
3 3  **Table of Contents:**
4 4  
... ... @@ -8,6 +8,7 @@
8 8  
9 9  = 1.  LA66 LoRaWAN Module =
10 10  
11 +
11 11  == 1.1  What is LA66 LoRaWAN Module ==
12 12  
13 13  
... ... @@ -48,10 +48,10 @@
48 48  )))
49 49  
50 50  
52 +
51 51  == 1.2  Features ==
52 52  
53 -
54 -* Support LoRaWAN v1.0.3 protocol
55 +* Support LoRaWAN v1.0.4 protocol
55 55  * Support peer-to-peer protocol
56 56  * TCXO crystal to ensure RF performance on low temperature
57 57  * SMD Antenna pad and i-pex antenna connector
... ... @@ -61,10 +61,8 @@
61 61  * Firmware upgradable via UART interface
62 62  * Ultra-long RF range
63 63  
64 -
65 65  == 1.3  Specification ==
66 66  
67 -
68 68  * CPU: 32-bit 48 MHz
69 69  * Flash: 256KB
70 70  * RAM: 64KB
... ... @@ -83,177 +83,570 @@
83 83  * LoRa Rx current: <9 mA
84 84  * I/O Voltage: 3.3v
85 85  
86 -
87 87  == 1.4  AT Command ==
88 88  
89 89  
90 -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/scl/fi/s3i58dyuh2zpwxfzcks9d/Accuhealth-LA66-AT-commands.pdf?rlkey=059co9isdbddl1h1lb5gy93oy&dl=0]].
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.
91 91  
92 -== 1.5  Dimension ==
93 93  
94 94  
92 +== 1.5  Dimension ==
93 +
95 95  [[image:image-20220718094750-3.png]]
96 96  
97 97  
97 +
98 98  == 1.6  Pin Mapping ==
99 99  
100 100  [[image:image-20220720111850-1.png]]
101 101  
102 102  
103 +
103 103  == 1.7  Land Pattern ==
104 104  
105 -
106 106  [[image:image-20220517072821-2.png]]
107 107  
108 108  
109 -= 2.  FAQ =
110 110  
111 -== 2.1  Where to find examples of how to use LA66? ==
110 += 2.  LA66 LoRaWAN Shield =
112 112  
113 113  
114 -(% class="wikigeneratedid" %)
115 -Below products are made by LA66. User can use their examples as reference:
113 +== 2.1  Overview ==
116 116  
117 -* [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
118 -* [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
119 119  
116 +(((
117 +[[image:image-20220715000826-2.png||height="145" width="220"]]
118 +)))
120 120  
121 -== 2.2  How to Compile Source Code for LA66? ==
120 +(((
121 +
122 +)))
122 122  
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 +)))
123 123  
124 -Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
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 +)))
125 125  
134 +(((
135 +(((
136 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
137 +)))
138 +)))
126 126  
127 -== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
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 +)))
128 128  
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 +)))
129 129  
130 -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.
131 131  
132 132  
133 -== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
154 +== 2.2  Features ==
134 134  
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
135 135  
136 -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]]
167 +== 2.3  Specification ==
137 137  
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
138 138  
139 -== 2.5 How can i use J-LInk to debug LA66? ==
187 +== 2.4  LED ==
140 140  
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
141 141  
142 -(% style="color:#037691" %)**The steps are as follows:**
143 143  
194 +== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
144 144  
145 -(% style="color:blue" %)**1. Install J-Link software from**
196 +Show connection diagram：
146 146  
147 -[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
198 +[[image:image-20220723170210-2.png||height="908" width="681"]]
148 148  
200 +1.open Arduino IDE
149 149  
150 -(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
202 +[[image:image-20220723170545-4.png]]
151 151  
204 +2.Open project
152 152  
153 -[[image:image-20230605151850-1.png||height="676" width="640"]]
206 +[[image:image-20220723170750-5.png||height="533" width="930"]]
154 154  
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
155 155  
156 -[[image:image-20230605151850-2.png]]
210 +[[image:image-20220723171228-6.png]]
157 157  
158 -(% style="display:none" %) (%%)
212 +4.After the upload is successful, open the serial port monitoring and send the AT command
159 159  
160 -(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
214 +[[image:image-20220723172235-7.png||height="480" width="1027"]]
161 161  
216 +== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
162 162  
163 -**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
218 +1.Open project
164 164  
165 -**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
220 +[[image:image-20220723172502-8.png]]
166 166  
167 -**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
222 +2.Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets
168 168  
169 -**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
224 +[[image:image-20220723172938-9.png||height="652" width="1050"]]
170 170  
171 -[[image:image-20230605151850-3.png||height="629" width="1182"]]
172 172  
173 -(% style="display:none" %) (%%)
227 +== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
174 174  
175 -(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
229 +1.Open project
176 176  
177 -(% style="display:none" %) [[image:image-20230605151850-4.png]]
231 +[[image:image-20220723173341-10.png||height="581" width="1014"]]
178 178  
233 +2.Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets
179 179  
180 -**Add ASR6601 256KB Flash to Flash Download**
235 +[[image:image-20220723173950-11.png||height="665" width="1012"]]
181 181  
182 -[[image:image-20230605152412-12.png]]
237 +3.Integration into Node-red via TTNV3
183 183  
239 +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/]]
184 184  
185 -[[image:image-20230605151851-6.png]]
241 +[[image:image-20220723175700-12.png||height="602" width="995"]]
186 186  
243 +== 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
187 187  
188 -(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
189 189  
246 +=== 2.8.1  Items needed for update ===
190 190  
191 -[[image:image-20230605151851-7.png]]
248 +1. LA66 LoRaWAN Shield
249 +1. Arduino
250 +1. USB TO TTL Adapter
192 192  
193 -[[image:image-20230605151851-8.png]]
252 +[[image:image-20220602100052-2.png||height="385" width="600"]]
194 194  
195 195  
196 -(% 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.**
255 +=== 2.8.2  Connection ===
197 197  
198 198  
199 -(% style="color:blue" %)**6. Comment the low power function in main.c.**
258 +[[image:image-20220602101311-3.png||height="276" width="600"]]
200 200  
201 201  
202 -[[image:image-20230605151851-9.png]]
261 +(((
262 +(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
263 +)))
203 203  
265 +(((
266 +(% style="background-color:yellow" %)**GND  <-> GND
267 +TXD  <->  TXD
268 +RXD  <->  RXD**
269 +)))
204 204  
205 -(% style="color:blue" %)**Click Debug mode to debug.**
206 206  
207 -[[image:image-20230605151851-10.png||height="293" width="1275"]]
272 +Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
208 208  
274 +Connect USB TTL Adapter to PC after connecting the wires
209 209  
210 -[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
211 211  
212 -(% style="display:none" %) (%%)
277 +[[image:image-20220602102240-4.png||height="304" width="600"]]
213 213  
214 -= 3.  Order Info =
215 215  
280 +=== 2.8.3  Upgrade steps ===
216 216  
217 -**Part Number:**  (% style="color:blue" %)**LA66-XXX**
218 218  
219 -(% style="color:blue" %)**XXX**(%%): The default frequency band
283 +==== 1.  Switch SW1 to put in ISP position ====
220 220  
221 -* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
222 -* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
223 -* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
224 -* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
225 -* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
226 -* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
227 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
228 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
229 -* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
230 230  
286 +[[image:image-20220602102824-5.png||height="306" width="600"]]
231 231  
232 -= 4.  FCC Statement =
233 233  
234 234  
235 -(% style="color:red" %)**FCC Caution:**
290 +==== 2.  Press the RST switch once ====
236 236  
237 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
238 238  
239 -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.
293 +[[image:image-20220602104701-12.png||height="285" width="600"]]
240 240  
241 241  
242 -(% style="color:red" %)**IMPORTANT NOTE: **
243 243  
244 -(% 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:
297 +==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
245 245  
246 -—Reorient or relocate the receiving antenna.
247 247  
248 -—Increase the separation between the equipment and receiver.
300 +(((
301 +(% 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/]]**
302 +)))
249 249  
250 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
251 251  
252 -—Consult the dealer or an experienced radio/TV technician for help.
305 +[[image:image-20220602103227-6.png]]
253 253  
254 254  
255 -(% style="color:red" %)**FCC Radiation Exposure Statement: **
308 +[[image:image-20220602103357-7.png]]
256 256  
257 -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.
258 258  
259 -
311 +
312 +(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
313 +(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
314 +
315 +
316 +[[image:image-20220602103844-8.png]]
317 +
318 +
319 +
320 +(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
321 +(% style="color:blue" %)**3. Select the bin file to burn**
322 +
323 +
324 +[[image:image-20220602104144-9.png]]
325 +
326 +
327 +[[image:image-20220602104251-10.png]]
328 +
329 +
330 +[[image:image-20220602104402-11.png]]
331 +
332 +
333 +
334 +(% class="wikigeneratedid" id="HClicktostartthedownload" %)
335 +(% style="color:blue" %)**4. Click to start the download**
336 +
337 +[[image:image-20220602104923-13.png]]
338 +
339 +
340 +
341 +(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
342 +(% style="color:blue" %)**5. Check update process**
343 +
344 +
345 +[[image:image-20220602104948-14.png]]
346 +
347 +
348 +
349 +(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
350 +(% style="color:blue" %)**The following picture shows that the burning is successful**
351 +
352 +[[image:image-20220602105251-15.png]]
353 +
354 +
355 +
356 += 3.  LA66 USB LoRaWAN Adapter =
357 +
358 +
359 +== 3.1  Overview ==
360 +
361 +
362 +[[image:image-20220715001142-3.png||height="145" width="220"]]
363 +
364 +
365 +(((
366 +(% 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.
367 +)))
368 +
369 +(((
370 +(% 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.
371 +)))
372 +
373 +(((
374 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
375 +)))
376 +
377 +(((
378 +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.
379 +)))
380 +
381 +(((
382 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
383 +)))
384 +
385 +
386 +
387 +== 3.2  Features ==
388 +
389 +* LoRaWAN USB adapter base on LA66 LoRaWAN module
390 +* Ultra-long RF range
391 +* Support LoRaWAN v1.0.4 protocol
392 +* Support peer-to-peer protocol
393 +* TCXO crystal to ensure RF performance on low temperature
394 +* Spring RF antenna
395 +* Available in different frequency LoRaWAN frequency bands.
396 +* World-wide unique OTAA keys.
397 +* AT Command via UART-TTL interface
398 +* Firmware upgradable via UART interface
399 +* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
400 +
401 +== 3.3  Specification ==
402 +
403 +* CPU: 32-bit 48 MHz
404 +* Flash: 256KB
405 +* RAM: 64KB
406 +* Input Power Range: 5v
407 +* Frequency Range: 150 MHz ~~ 960 MHz
408 +* Maximum Power +22 dBm constant RF output
409 +* High sensitivity: -148 dBm
410 +* Temperature:
411 +** Storage: -55 ~~ +125℃
412 +** Operating: -40 ~~ +85℃
413 +* Humidity:
414 +** Storage: 5 ~~ 95% (Non-Condensing)
415 +** Operating: 10 ~~ 95% (Non-Condensing)
416 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
417 +* LoRa Rx current: <9 mA
418 +
419 +== 3.4  Pin Mapping & LED ==
420 +
421 +
422 +
423 +== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
424 +
425 +
426 +(((
427 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
428 +)))
429 +
430 +
431 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
432 +
433 +
434 +[[image:image-20220723100027-1.png]]
435 +
436 +
437 +Open the serial port tool
438 +
439 +[[image:image-20220602161617-8.png]]
440 +
441 +[[image:image-20220602161718-9.png||height="457" width="800"]]
442 +
443 +
444 +
445 +(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
446 +
447 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
448 +
449 +
450 +[[image:image-20220602161935-10.png||height="498" width="800"]]
451 +
452 +
453 +
454 +(% style="color:blue" %)**3. See Uplink Command**
455 +
456 +Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
457 +
458 +example: AT+SENDB=01,02,8,05820802581ea0a5
459 +
460 +[[image:image-20220602162157-11.png||height="497" width="800"]]
461 +
462 +
463 +
464 +(% style="color:blue" %)**4. Check to see if TTN received the message**
465 +
466 +[[image:image-20220602162331-12.png||height="420" width="800"]]
467 +
468 +
469 +
470 +== 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
471 +
472 +
473 +**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]]
474 +
475 +(**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]])
476 +
477 +(% style="color:red" %)**Preconditions:**
478 +
479 +(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
480 +
481 +(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
482 +
483 +
484 +
485 +(% style="color:blue" %)**Steps for usage:**
486 +
487 +(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
488 +
489 +(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
490 +
491 +[[image:image-20220602115852-3.png||height="450" width="1187"]]
492 +
493 +
494 +
495 +== 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
496 +
497 +
498 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
499 +
500 +
501 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
502 +
503 +[[image:image-20220723100439-2.png]]
504 +
505 +
506 +
507 +(% style="color:blue" %)**2. Install Minicom in RPi.**
508 +
509 +(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
510 +
511 + (% style="background-color:yellow" %)**apt update**
512 +
513 + (% style="background-color:yellow" %)**apt install minicom**
514 +
515 +
516 +Use minicom to connect to the RPI's terminal
517 +
518 +[[image:image-20220602153146-3.png||height="439" width="500"]]
519 +
520 +
521 +
522 +(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
523 +
524 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
525 +
526 +
527 +[[image:image-20220602154928-5.png||height="436" width="500"]]
528 +
529 +
530 +
531 +(% style="color:blue" %)**4. Send Uplink message**
532 +
533 +Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
534 +
535 +example: AT+SENDB=01,02,8,05820802581ea0a5
536 +
537 +
538 +[[image:image-20220602160339-6.png||height="517" width="600"]]
539 +
540 +
541 +
542 +Check to see if TTN received the message
543 +
544 +[[image:image-20220602160627-7.png||height="369" width="800"]]
545 +
546 +
547 +
548 +== 3.8  Example: Use of LA66 USB LoRaWAN Adapter and APP sample process and DRAGINO-LA66-APP. ==
549 +
550 +=== 3.8.1 DRAGINO-LA66-APP ===
551 +
552 +[[image:image-20220723102027-3.png]]
553 +
554 +==== Overview： ====
555 +
556 +DRAGINO-LA66-APP is a mobile APP for LA66 USB LoRaWAN Adapter and APP sample process. DRAGINO-LA66-APP can obtain the positioning information of the mobile phone and send it to the LoRaWAN platform through the LA66 USB LoRaWAN Adapter.
557 +
558 +View the communication signal strength between the node and the gateway through the RSSI value（DRAGINO-LA66-APP currently only supports Android system）
559 +
560 +==== Conditions of Use： ====
561 +
562 +Requires a type-c to USB adapter
563 +
564 +[[image:image-20220723104754-4.png]]
565 +
566 +==== Use of APP: ====
567 +
568 +Function and page introduction
569 +
570 +[[image:image-20220723113448-7.png||height="1481" width="670"]]
571 +
572 +1.Display LA66 USB LoRaWAN Module connection status
573 +
574 +2.Check and reconnect
575 +
576 +3.Turn send timestamps on or off
577 +
578 +4.Display LoRaWan connection status
579 +
580 +5.Check LoRaWan connection status
581 +
582 +6.The RSSI value of the node when the ACK is received
583 +
584 +7.Node's Signal Strength Icon
585 +
586 +8.Set the packet sending interval of the node in seconds
587 +
588 +9.AT command input box
589 +
590 +10.Send AT command button
591 +
592 +11.Node log box
593 +
594 +12.clear log button
595 +
596 +13.exit button
597 +
598 +LA66 USB LoRaWAN Module not connected
599 +
600 +[[image:image-20220723110520-5.png||height="903" width="677"]]
601 +
602 +Connect LA66 USB LoRaWAN Module
603 +
604 +[[image:image-20220723110626-6.png||height="906" width="680"]]
605 +
606 +=== 3.8.2 Use DRAGINO-LA66-APP to obtain positioning information and send it to TTNV3 through LA66 USB LoRaWAN Adapter and integrate it into Node-RED ===
607 +
608 +1.Register LA66 USB LoRaWAN Module to TTNV3
609 +
610 +[[image:image-20220723134549-8.png]]
611 +
612 +2.Open Node-RED,And import the JSON file to generate the flow
613 +
614 +Sample JSON file please go to this link to download：放置JSON文件的链接
615 +
616 +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/]]
617 +
618 +The following is the positioning effect map
619 +
620 +[[image:image-20220723144339-1.png]]
621 +
622 +== 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
623 +
624 +The LA66 USB LoRaWAN Adapter is the same as the LA66 LoRaWAN Shield update method
625 +
626 +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)
627 +
628 +[[image:image-20220723150132-2.png]]
629 +
630 +
631 += 4.  Order Info =
632 +
633 +
634 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
635 +
636 +
637 +(% style="color:blue" %)**XXX**(%%): The default frequency band
638 +
639 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
640 +* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
641 +* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
642 +* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
643 +* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
644 +* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
645 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
646 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
647 +* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
648 +
649 += 5.  Reference =
650 +
651 +* 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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