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Wiki source code of LA66 LoRaWAN Module

Version 134.1 by Herong Lu on 2022/07/26 09:19
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Herong Lu 113.1 1 0
Xiaoling 87.2 2
Xiaoling 87.13 3 **Table of Contents:**
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Edwin Chen 1.1 5 {{toc/}}
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Edwin Chen 6.1 8
Xiaoling 87.2 9 = 1.  LA66 LoRaWAN Module =
10
11
12 == 1.1  What is LA66 LoRaWAN Module ==
13
14
Xiaoling 87.15 15 (((
Xiaoling 100.2 16 (((
17 [[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
18 )))
Edwin Chen 88.2 19
Xiaoling 100.2 20 (((
21
22 )))
23
24 (((
Edwin Chen 65.1 25 (% style="color:blue" %)**Dragino LA66**(%%) is a small wireless LoRaWAN module that offers a very compelling mix of long-range, low power consumption, and secure data transmission. It is designed to facilitate developers to quickly deploy industrial-level LoRaWAN and IoT solutions. It helps users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to create and connect your things everywhere.
Xiaoling 87.15 26 )))
Xiaoling 100.2 27 )))
Edwin Chen 1.1 28
Xiaoling 87.15 29 (((
Xiaoling 100.2 30 (((
Xiaoling 101.4 31 (% 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.
Xiaoling 87.15 32 )))
Xiaoling 100.2 33 )))
Edwin Chen 1.1 34
Xiaoling 87.15 35 (((
Xiaoling 100.2 36 (((
Edwin Chen 65.1 37 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
Xiaoling 87.15 38 )))
Edwin Chen 1.1 39
Xiaoling 87.15 40 (((
Edwin Chen 65.1 41 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.
Xiaoling 87.15 42 )))
Xiaoling 100.2 43 )))
Edwin Chen 1.1 44
Xiaoling 87.15 45 (((
Xiaoling 100.2 46 (((
Edwin Chen 65.1 47 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
Xiaoling 87.15 48 )))
Xiaoling 100.2 49 )))
Edwin Chen 1.1 50
Edwin Chen 67.1 51
Xiaoling 100.2 52
Xiaoling 87.2 53 == 1.2  Features ==
Edwin Chen 64.1 54
Edwin Chen 68.1 55 * Support LoRaWAN v1.0.4 protocol
56 * Support peer-to-peer protocol
57 * TCXO crystal to ensure RF performance on low temperature
58 * SMD Antenna pad and i-pex antenna connector
59 * Available in different frequency LoRaWAN frequency bands.
60 * World-wide unique OTAA keys.
Edwin Chen 69.1 61 * AT Command via UART-TTL interface
62 * Firmware upgradable via UART interface
63 * Ultra-long RF range
Edwin Chen 64.1 64
Xiaoling 87.2 65 == 1.3  Specification ==
66
Edwin Chen 68.1 67 * CPU: 32-bit 48 MHz
68 * Flash: 256KB
69 * RAM: 64KB
Edwin Chen 66.1 70 * Input Power Range: 1.8v ~~ 3.7v
71 * Power Consumption: < 4uA.
72 * Frequency Range: 150 MHz ~~ 960 MHz
73 * Maximum Power +22 dBm constant RF output
74 * High sensitivity: -148 dBm
75 * Temperature:
76 ** Storage: -55 ~~ +125℃
77 ** Operating: -40 ~~ +85℃
78 * Humidity:
79 ** Storage: 5 ~~ 95% (Non-Condensing)
80 ** Operating: 10 ~~ 95% (Non-Condensing)
81 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
82 * LoRa Rx current: <9 mA
83 * I/O Voltage: 3.3v
Edwin Chen 1.1 84
Xiaoling 87.2 85 == 1.4  AT Command ==
86
Xiaoling 98.2 87
Edwin Chen 66.1 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.
Edwin Chen 1.1 89
Edwin Chen 3.1 90
Xiaoling 98.4 91
Xiaoling 87.2 92 == 1.5  Dimension ==
Edwin Chen 3.1 93
Xiaoling 98.2 94 [[image:image-20220718094750-3.png]]
Edwin Chen 3.1 95
96
Edwin Chen 5.1 97
Xiaoling 87.2 98 == 1.6  Pin Mapping ==
99
Xiaoling 101.2 100 [[image:image-20220720111850-1.png]]
Xiaoling 87.2 101
Edwin Chen 5.1 102
103
Xiaoling 87.2 104 == 1.7  Land Pattern ==
105
Edwin Chen 5.1 106 [[image:image-20220517072821-2.png]]
107
108
109
Xiaoling 87.2 110 = 2.  LA66 LoRaWAN Shield =
Edwin Chen 6.1 111
112
Xiaoling 87.2 113 == 2.1  Overview ==
114
Edwin Chen 90.1 115
Xiaoling 100.2 116 (((
117 [[image:image-20220715000826-2.png||height="145" width="220"]]
118 )))
Edwin Chen 90.1 119
Xiaoling 100.2 120 (((
121
122 )))
123
124 (((
Xiaoling 100.4 125 (% 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.
Xiaoling 100.2 126 )))
Edwin Chen 71.1 127
Edwin Chen 90.1 128 (((
Xiaoling 100.2 129 (((
Xiaoling 101.4 130 (% 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.
Edwin Chen 90.1 131 )))
Xiaoling 100.2 132 )))
Edwin Chen 71.1 133
Edwin Chen 90.1 134 (((
Xiaoling 100.2 135 (((
Edwin Chen 90.1 136 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
137 )))
Xiaoling 100.2 138 )))
Edwin Chen 90.1 139
140 (((
Xiaoling 100.2 141 (((
Edwin Chen 90.1 142 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 )))
Xiaoling 100.2 144 )))
Edwin Chen 90.1 145
146 (((
Xiaoling 100.2 147 (((
Edwin Chen 90.1 148 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
149 )))
Xiaoling 100.2 150 )))
Edwin Chen 90.1 151
152
Xiaoling 100.2 153
Xiaoling 87.2 154 == 2.2  Features ==
Edwin Chen 71.1 155
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
166
Xiaoling 87.2 167 == 2.3  Specification ==
168
Edwin Chen 71.1 169 * 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
186
Herong Lu 125.1 187 == 2.4  LED ==
Edwin Chen 11.1 188
Herong Lu 125.1 189 ~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
Edwin Chen 11.1 192
193
Xiaoling 87.2 194 == 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
Edwin Chen 11.1 195
Herong Lu 125.1 196 Show connection diagram：
Edwin Chen 11.1 197
Herong Lu 125.1 198 [[image:image-20220723170210-2.png||height="908" width="681"]]
Xiaoling 87.2 199
Herong Lu 125.1 200 1.open Arduino IDE
201
202 [[image:image-20220723170545-4.png]]
203
204 2.Open project
205
Herong Lu 131.1 206 [[image:image-20220723170750-5.png||height="533" width="930"]]
Herong Lu 125.1 207
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
209
210 [[image:image-20220723171228-6.png]]
211
212 4.After the upload is successful, open the serial port monitoring and send the AT command
213
Herong Lu 131.1 214 [[image:image-20220723172235-7.png||height="480" width="1027"]]
Herong Lu 125.1 215
Xiaoling 87.2 216 == 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
217
Herong Lu 131.1 218 1.Open project
Xiaoling 87.2 219
Herong Lu 131.1 220 [[image:image-20220723172502-8.png]]
Xiaoling 87.2 221
Herong Lu 131.1 222 2.Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets
223
224 [[image:image-20220723172938-9.png||height="652" width="1050"]]
225
226
Herong Lu 133.1 227 == 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
Xiaoling 87.2 228
Herong Lu 131.1 229 1.Open project
Xiaoling 87.2 230
Herong Lu 131.1 231 [[image:image-20220723173341-10.png||height="581" width="1014"]]
Xiaoling 87.2 232
Herong Lu 131.1 233 2.Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets
234
235 [[image:image-20220723173950-11.png||height="665" width="1012"]]
236
Herong Lu 133.1 237 3.Integration into Node-red via TTNV3
Herong Lu 131.1 238
Herong Lu 133.1 239 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/]]
240
241 [[image:image-20220723175700-12.png||height="602" width="995"]]
242
Xiaoling 87.2 243 == 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
244
245
246 === 2.8.1  Items needed for update ===
247
Edwin Chen 74.1 248 1. LA66 LoRaWAN Shield
249 1. Arduino
250 1. USB TO TTL Adapter
Edwin Chen 13.1 251
Edwin Chen 75.1 252 [[image:image-20220602100052-2.png||height="385" width="600"]]
Herong Lu 20.1 253
254
Xiaoling 87.2 255 === 2.8.2  Connection ===
Herong Lu 20.1 256
Xiaoling 87.2 257
Edwin Chen 75.1 258 [[image:image-20220602101311-3.png||height="276" width="600"]]
Herong Lu 20.1 259
260
Xiaoling 87.17 261 (((
Xiaoling 87.2 262 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
Xiaoling 87.17 263 )))
Xiaoling 87.2 264
Xiaoling 87.16 265 (((
Xiaoling 87.2 266 (% style="background-color:yellow" %)**GND  <-> GND
Xiaoling 87.8 267 TXD  <->  TXD
268 RXD  <->  RXD**
Xiaoling 87.16 269 )))
Xiaoling 87.2 270
271
Edwin Chen 77.1 272 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
Herong Lu 20.1 273
Edwin Chen 75.1 274 Connect USB TTL Adapter to PC after connecting the wires
Herong Lu 20.1 275
276
Edwin Chen 75.1 277 [[image:image-20220602102240-4.png||height="304" width="600"]]
Herong Lu 20.1 278
279
Xiaoling 87.2 280 === 2.8.3  Upgrade steps ===
Herong Lu 20.1 281
282
Xiaoling 87.2 283 ==== 1.  Switch SW1 to put in ISP position ====
284
285
Edwin Chen 75.1 286 [[image:image-20220602102824-5.png||height="306" width="600"]]
Herong Lu 32.1 287
288
Xiaoling 87.9 289
Xiaoling 87.2 290 ==== 2.  Press the RST switch once ====
Herong Lu 32.1 291
Xiaoling 87.10 292
Edwin Chen 75.1 293 [[image:image-20220602104701-12.png||height="285" width="600"]]
Herong Lu 32.1 294
Edwin Chen 75.1 295
Xiaoling 87.9 296
Xiaoling 87.2 297 ==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
Edwin Chen 75.1 298
Herong Lu 39.1 299
Xiaoling 87.18 300 (((
Xiaoling 87.2 301 (% 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/]]**
Xiaoling 87.18 302 )))
Xiaoling 87.2 303
304
Herong Lu 32.1 305 [[image:image-20220602103227-6.png]]
306
Xiaoling 87.2 307
Herong Lu 32.1 308 [[image:image-20220602103357-7.png]]
309
310
Xiaoling 87.2 311
Edwin Chen 76.1 312 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
Xiaoling 87.2 313 (% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
Edwin Chen 76.1 314
Xiaoling 87.2 315
Herong Lu 32.1 316 [[image:image-20220602103844-8.png]]
317
318
Xiaoling 87.2 319
Edwin Chen 76.1 320 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
Xiaoling 87.2 321 (% style="color:blue" %)**3. Select the bin file to burn**
Edwin Chen 76.1 322
Xiaoling 87.2 323
Herong Lu 32.1 324 [[image:image-20220602104144-9.png]]
325
Xiaoling 87.2 326
Herong Lu 32.1 327 [[image:image-20220602104251-10.png]]
328
Xiaoling 87.2 329
Herong Lu 32.1 330 [[image:image-20220602104402-11.png]]
331
332
Xiaoling 87.2 333
Edwin Chen 76.1 334 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
Xiaoling 87.2 335 (% style="color:blue" %)**4. Click to start the download**
Edwin Chen 76.1 336
Herong Lu 32.1 337 [[image:image-20220602104923-13.png]]
338
339
Xiaoling 87.10 340
Edwin Chen 76.1 341 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
Xiaoling 87.2 342 (% style="color:blue" %)**5. Check update process**
Edwin Chen 76.1 343
Xiaoling 87.2 344
Herong Lu 32.1 345 [[image:image-20220602104948-14.png]]
346
347
Xiaoling 87.2 348
Edwin Chen 76.1 349 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
Xiaoling 87.2 350 (% style="color:blue" %)**The following picture shows that the burning is successful**
Edwin Chen 76.1 351
Herong Lu 32.1 352 [[image:image-20220602105251-15.png]]
353
Edwin Chen 72.1 354
355
Xiaoling 87.2 356 = 3.  LA66 USB LoRaWAN Adapter =
Edwin Chen 6.1 357
Edwin Chen 7.1 358
Xiaoling 87.2 359 == 3.1  Overview ==
360
Xiaoling 100.3 361
Edwin Chen 93.1 362 [[image:image-20220715001142-3.png||height="145" width="220"]]
363
Xiaoling 100.3 364
Xiaoling 100.5 365 (((
Edwin Chen 91.1 366 (% 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.
Xiaoling 100.5 367 )))
Herong Lu 52.1 368
Xiaoling 100.5 369 (((
Xiaoling 101.4 370 (% 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.
Xiaoling 100.5 371 )))
Edwin Chen 73.1 372
Xiaoling 100.5 373 (((
Edwin Chen 90.1 374 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
Xiaoling 100.5 375 )))
Edwin Chen 90.1 376
Xiaoling 100.5 377 (((
Edwin Chen 90.1 378 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.
Xiaoling 100.5 379 )))
Edwin Chen 90.1 380
Xiaoling 100.5 381 (((
Edwin Chen 90.1 382 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
Xiaoling 100.5 383 )))
Edwin Chen 90.1 384
385
Xiaoling 100.3 386
Xiaoling 87.2 387 == 3.2  Features ==
Edwin Chen 73.1 388
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
Xiaoling 93.3 399 * Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
Edwin Chen 73.1 400
Xiaoling 87.3 401 == 3.3  Specification ==
Edwin Chen 73.1 402
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
Xiaoling 87.3 419 == 3.4  Pin Mapping & LED ==
Edwin Chen 7.1 420
421
Xiaoling 87.3 422
423 == 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
424
425
Xiaoling 100.5 426 (((
Edwin Chen 78.2 427 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
Xiaoling 100.5 428 )))
Herong Lu 58.1 429
430
Xiaoling 87.3 431 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
432
433
Herong Lu 106.1 434 [[image:image-20220723100027-1.png]]
Edwin Chen 78.2 435
Xiaoling 87.3 436
Herong Lu 58.1 437 Open the serial port tool
438
439 [[image:image-20220602161617-8.png]]
440
Edwin Chen 78.2 441 [[image:image-20220602161718-9.png||height="457" width="800"]]
Herong Lu 58.1 442
443
444
Xiaoling 87.3 445 (% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
446
Edwin Chen 78.2 447 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
Herong Lu 58.1 448
Xiaoling 87.3 449
Edwin Chen 78.2 450 [[image:image-20220602161935-10.png||height="498" width="800"]]
Herong Lu 58.1 451
Edwin Chen 78.2 452
453
Xiaoling 87.3 454 (% style="color:blue" %)**3. See Uplink Command**
Edwin Chen 78.2 455
Xiaoling 87.3 456 Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
457
Herong Lu 58.1 458 example: AT+SENDB=01,02,8,05820802581ea0a5
459
Edwin Chen 78.2 460 [[image:image-20220602162157-11.png||height="497" width="800"]]
Herong Lu 58.1 461
462
463
Xiaoling 87.3 464 (% style="color:blue" %)**4. Check to see if TTN received the message**
465
Edwin Chen 78.2 466 [[image:image-20220602162331-12.png||height="420" width="800"]]
467
468
469
Xiaoling 87.3 470 == 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
Edwin Chen 81.1 471
Xiaoling 87.3 472
Edwin Chen 87.1 473 **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]]
Edwin Chen 81.1 474
Herong Lu 106.1 475 (**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]])
Edwin Chen 81.1 476
Xiaoling 87.3 477 (% style="color:red" %)**Preconditions:**
Edwin Chen 81.1 478
Xiaoling 87.3 479 (% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
Edwin Chen 81.1 480
Xiaoling 87.3 481 (% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
Edwin Chen 81.1 482
483
484
Xiaoling 87.3 485 (% 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
Edwin Chen 81.1 491 [[image:image-20220602115852-3.png||height="450" width="1187"]]
492
493
494
Xiaoling 87.4 495 == 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
Edwin Chen 11.1 496
Xiaoling 87.4 497
Edwin Chen 79.1 498 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
Edwin Chen 12.1 499
Edwin Chen 79.1 500
Xiaoling 87.5 501 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
Xiaoling 87.4 502
Herong Lu 106.1 503 [[image:image-20220723100439-2.png]]
Herong Lu 43.1 504
Herong Lu 52.1 505
506
Xiaoling 87.4 507 (% style="color:blue" %)**2. Install Minicom in RPi.**
508
Edwin Chen 79.1 509 (% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
Herong Lu 52.1 510
Xiaoling 87.4 511 (% style="background-color:yellow" %)**apt update**
Herong Lu 52.1 512
Xiaoling 87.4 513 (% style="background-color:yellow" %)**apt install minicom**
Herong Lu 52.1 514
515
Edwin Chen 79.1 516 Use minicom to connect to the RPI's terminal
Herong Lu 52.1 517
Edwin Chen 79.1 518 [[image:image-20220602153146-3.png||height="439" width="500"]]
Herong Lu 52.1 519
520
Xiaoling 87.4 521
Xiaoling 87.11 522 (% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
Edwin Chen 8.1 523
Xiaoling 87.11 524 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
525
526
Edwin Chen 79.1 527 [[image:image-20220602154928-5.png||height="436" width="500"]]
Herong Lu 46.1 528
529
530
Xiaoling 87.4 531 (% style="color:blue" %)**4. Send Uplink message**
Herong Lu 46.1 532
Xiaoling 87.5 533 Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
Xiaoling 87.4 534
Edwin Chen 79.1 535 example: AT+SENDB=01,02,8,05820802581ea0a5
Herong Lu 46.1 536
Xiaoling 87.4 537
Edwin Chen 79.1 538 [[image:image-20220602160339-6.png||height="517" width="600"]]
539
Xiaoling 87.4 540
541
Edwin Chen 79.1 542 Check to see if TTN received the message
543
544 [[image:image-20220602160627-7.png||height="369" width="800"]]
545
546
547
Herong Lu 134.1 548 == 3.8  Example: Use of LA66 USB LoRaWAN Adapter and APP sample process and DRAGINO-LA66-APP. ==
Edwin Chen 11.1 549
Herong Lu 106.1 550 === 3.8.1 DRAGINO-LA66-APP ===
Edwin Chen 13.1 551
Herong Lu 106.1 552 [[image:image-20220723102027-3.png]]
Herong Lu 63.1 553
Herong Lu 106.1 554 ==== Overview： ====
555
Herong Lu 134.1 556 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.
Herong Lu 106.1 557
Herong Lu 111.1 558 View the communication signal strength between the node and the gateway through the RSSI value（DRAGINO-LA66-APP currently only supports Android system）
559
Herong Lu 106.1 560 ==== 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
Herong Lu 110.1 568 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
Herong Lu 106.1 598 LA66 USB LoRaWAN Module not connected
599
Herong Lu 110.1 600 [[image:image-20220723110520-5.png||height="903" width="677"]]
Herong Lu 106.1 601
Herong Lu 110.1 602 Connect LA66 USB LoRaWAN Module
Herong Lu 106.1 603
Herong Lu 110.1 604 [[image:image-20220723110626-6.png||height="906" width="680"]]
605
Herong Lu 134.1 606 === 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 ===
Herong Lu 111.1 607
Herong Lu 113.1 608 1.Register LA66 USB LoRaWAN Module to TTNV3
Herong Lu 111.1 609
Herong Lu 113.1 610 [[image:image-20220723134549-8.png]]
611
612 2.Open Node-RED,And import the JSON file to generate the flow
613
Herong Lu 117.1 614 Sample JSON file please go to this link to download：放置JSON文件的链接
615
Herong Lu 115.1 616 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/]]
Herong Lu 113.1 617
Herong Lu 117.1 618 The following is the positioning effect map
619
620 [[image:image-20220723144339-1.png]]
621
Xiaoling 87.4 622 == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
Edwin Chen 73.1 623
Herong Lu 134.1 624 The LA66 USB LoRaWAN Adapter is the same as the LA66 LoRaWAN Shield update method
Edwin Chen 73.1 625
Herong Lu 119.1 626 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)
Edwin Chen 73.1 627
Herong Lu 119.1 628 [[image:image-20220723150132-2.png]]
Edwin Chen 73.1 629
Herong Lu 119.1 630
Xiaoling 87.4 631 = 4.  Order Info =
Edwin Chen 73.1 632
Xiaoling 87.4 633
Xiaoling 87.5 634 **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
Xiaoling 87.4 635
636
Xiaoling 87.5 637 (% style="color:blue" %)**XXX**(%%): The default frequency band
Edwin Chen 86.1 638
Xiaoling 87.5 639 * (% 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
Edwin Chen 73.1 648
Xiaoling 87.4 649 = 5.  Reference =
650
Edwin Chen 78.1 651 * Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]