Wiki source code of LA66 LoRaWAN Module

Version 87.17 by Xiaoling on 2022/07/13 10:13
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1
2
3 **Table of Contents:**
4
5 {{toc/}}
6
7
8
9 = 1.  LA66 LoRaWAN Module =
10
11
12 == 1.1  What is LA66 LoRaWAN Module ==
13
14
15 (((
16 (% 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.
17 )))
18
19 (((
20 (% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.4 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.
21 )))
22
23 (((
24 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
25 )))
26
27 (((
28 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.
29 )))
30
31 (((
32 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
33 )))
34
35
36 == 1.2  Features ==
37
38 * Support LoRaWAN v1.0.4 protocol
39 * Support peer-to-peer protocol
40 * TCXO crystal to ensure RF performance on low temperature
41 * SMD Antenna pad and i-pex antenna connector
42 * Available in different frequency LoRaWAN frequency bands.
43 * World-wide unique OTAA keys.
44 * AT Command via UART-TTL interface
45 * Firmware upgradable via UART interface
46 * Ultra-long RF range
47
48
49
50 == 1.3  Specification ==
51
52 * CPU: 32-bit 48 MHz
53 * Flash: 256KB
54 * RAM: 64KB
55 * Input Power Range: 1.8v ~~ 3.7v
56 * Power Consumption: < 4uA.
57 * Frequency Range: 150 MHz ~~ 960 MHz
58 * Maximum Power +22 dBm constant RF output
59 * High sensitivity: -148 dBm
60 * Temperature:
61 ** Storage: -55 ~~ +125℃
62 ** Operating: -40 ~~ +85℃
63 * Humidity:
64 ** Storage: 5 ~~ 95% (Non-Condensing)
65 ** Operating: 10 ~~ 95% (Non-Condensing)
66 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
67 * LoRa Rx current: <9 mA
68 * I/O Voltage: 3.3v
69
70
71
72 == 1.4  AT Command ==
73
74 AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
75
76
77 == 1.5  Dimension ==
78
79 [[image:image-20220517072526-1.png]]
80
81
82
83 == 1.6  Pin Mapping ==
84
85
86 [[image:image-20220523101537-1.png]]
87
88
89
90 == 1.7  Land Pattern ==
91
92 [[image:image-20220517072821-2.png]]
93
94
95
96 = 2.  LA66 LoRaWAN Shield =
97
98
99 == 2.1  Overview ==
100
101 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.
102
103
104 == 2.2  Features ==
105
106 * Arduino Shield base on LA66 LoRaWAN module
107 * Support LoRaWAN v1.0.4 protocol
108 * Support peer-to-peer protocol
109 * TCXO crystal to ensure RF performance on low temperature
110 * SMA connector
111 * Available in different frequency LoRaWAN frequency bands.
112 * World-wide unique OTAA keys.
113 * AT Command via UART-TTL interface
114 * Firmware upgradable via UART interface
115 * Ultra-long RF range
116
117
118
119 == 2.3  Specification ==
120
121 * CPU: 32-bit 48 MHz
122 * Flash: 256KB
123 * RAM: 64KB
124 * Input Power Range: 1.8v ~~ 3.7v
125 * Power Consumption: < 4uA.
126 * Frequency Range: 150 MHz ~~ 960 MHz
127 * Maximum Power +22 dBm constant RF output
128 * High sensitivity: -148 dBm
129 * Temperature:
130 ** Storage: -55 ~~ +125℃
131 ** Operating: -40 ~~ +85℃
132 * Humidity:
133 ** Storage: 5 ~~ 95% (Non-Condensing)
134 ** Operating: 10 ~~ 95% (Non-Condensing)
135 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
136 * LoRa Rx current: <9 mA
137 * I/O Voltage: 3.3v
138
139
140
141 == 2.4  Pin Mapping & LED ==
142
143
144
145 == 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
146
147
148
149 == 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
150
151
152
153 == 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
154
155
156
157 == 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
158
159
160 === 2.8.1  Items needed for update ===
161
162 1. LA66 LoRaWAN Shield
163 1. Arduino
164 1. USB TO TTL Adapter
165
166
167
168
169 [[image:image-20220602100052-2.png||height="385" width="600"]]
170
171
172 === 2.8.2  Connection ===
173
174
175 [[image:image-20220602101311-3.png||height="276" width="600"]]
176
177
178 (((
179 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
180 )))
181
182 (((
183 (% style="background-color:yellow" %)**GND  <-> GND
184 TXD  <->  TXD
185 RXD  <->  RXD**
186 )))
187
188
189 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
190
191 Connect USB TTL Adapter to PC after connecting the wires
192
193
194 [[image:image-20220602102240-4.png||height="304" width="600"]]
195
196
197 === 2.8.3  Upgrade steps ===
198
199
200 ==== 1.  Switch SW1 to put in ISP position ====
201
202
203 [[image:image-20220602102824-5.png||height="306" width="600"]]
204
205
206
207 ==== 2.  Press the RST switch once ====
208
209
210 [[image:image-20220602104701-12.png||height="285" width="600"]]
211
212
213
214 ==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
215
216
217 (% 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/]]**
218
219
220 [[image:image-20220602103227-6.png]]
221
222
223 [[image:image-20220602103357-7.png]]
224
225
226
227 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
228 (% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
229
230
231 [[image:image-20220602103844-8.png]]
232
233
234
235 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
236 (% style="color:blue" %)**3. Select the bin file to burn**
237
238
239 [[image:image-20220602104144-9.png]]
240
241
242 [[image:image-20220602104251-10.png]]
243
244
245 [[image:image-20220602104402-11.png]]
246
247
248
249 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
250 (% style="color:blue" %)**4. Click to start the download**
251
252 [[image:image-20220602104923-13.png]]
253
254
255
256 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
257 (% style="color:blue" %)**5. Check update process**
258
259
260 [[image:image-20220602104948-14.png]]
261
262
263
264 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
265 (% style="color:blue" %)**The following picture shows that the burning is successful**
266
267 [[image:image-20220602105251-15.png]]
268
269
270
271 = 3.  LA66 USB LoRaWAN Adapter =
272
273
274 == 3.1  Overview ==
275
276 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.
277
278
279 == 3.2  Features ==
280
281 * LoRaWAN USB adapter base on LA66 LoRaWAN module
282 * Ultra-long RF range
283 * Support LoRaWAN v1.0.4 protocol
284 * Support peer-to-peer protocol
285 * TCXO crystal to ensure RF performance on low temperature
286 * Spring RF antenna
287 * Available in different frequency LoRaWAN frequency bands.
288 * World-wide unique OTAA keys.
289 * AT Command via UART-TTL interface
290 * Firmware upgradable via UART interface
291
292
293
294 == 3.3  Specification ==
295
296 * CPU: 32-bit 48 MHz
297 * Flash: 256KB
298 * RAM: 64KB
299 * Input Power Range: 5v
300 * Frequency Range: 150 MHz ~~ 960 MHz
301 * Maximum Power +22 dBm constant RF output
302 * High sensitivity: -148 dBm
303 * Temperature:
304 ** Storage: -55 ~~ +125℃
305 ** Operating: -40 ~~ +85℃
306 * Humidity:
307 ** Storage: 5 ~~ 95% (Non-Condensing)
308 ** Operating: 10 ~~ 95% (Non-Condensing)
309 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
310 * LoRa Rx current: <9 mA
311
312
313
314 == 3.4  Pin Mapping & LED ==
315
316
317
318 == 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
319
320
321 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
322
323
324 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
325
326
327 [[image:image-20220602171217-1.png||height="538" width="800"]]
328
329
330 Open the serial port tool
331
332 [[image:image-20220602161617-8.png]]
333
334 [[image:image-20220602161718-9.png||height="457" width="800"]]
335
336
337
338 (% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
339
340 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
341
342
343 [[image:image-20220602161935-10.png||height="498" width="800"]]
344
345
346
347 (% style="color:blue" %)**3. See Uplink Command**
348
349 Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
350
351 example: AT+SENDB=01,02,8,05820802581ea0a5
352
353 [[image:image-20220602162157-11.png||height="497" width="800"]]
354
355
356
357 (% style="color:blue" %)**4. Check to see if TTN received the message**
358
359 [[image:image-20220602162331-12.png||height="420" width="800"]]
360
361
362
363 == 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
364
365
366 **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]]
367
368
369 (% style="color:red" %)**Preconditions:**
370
371 (% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
372
373 (% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
374
375
376
377 (% style="color:blue" %)**Steps for usage:**
378
379 (% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
380
381 (% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
382
383 [[image:image-20220602115852-3.png||height="450" width="1187"]]
384
385
386
387 == 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
388
389
390 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
391
392
393 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
394
395 [[image:image-20220602171233-2.png||height="538" width="800"]]
396
397
398
399 (% style="color:blue" %)**2. Install Minicom in RPi.**
400
401 (% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
402
403 (% style="background-color:yellow" %)**apt update**
404
405 (% style="background-color:yellow" %)**apt install minicom**
406
407
408 Use minicom to connect to the RPI's terminal
409
410 [[image:image-20220602153146-3.png||height="439" width="500"]]
411
412
413
414 (% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
415
416 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
417
418
419 [[image:image-20220602154928-5.png||height="436" width="500"]]
420
421
422
423 (% style="color:blue" %)**4. Send Uplink message**
424
425 Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
426
427 example: AT+SENDB=01,02,8,05820802581ea0a5
428
429
430 [[image:image-20220602160339-6.png||height="517" width="600"]]
431
432
433
434 Check to see if TTN received the message
435
436 [[image:image-20220602160627-7.png||height="369" width="800"]]
437
438
439
440 == 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
441
442
443
444 == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
445
446
447
448
449 = 4.  Order Info =
450
451
452 **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
453
454
455 (% style="color:blue" %)**XXX**(%%): The default frequency band
456
457 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
458 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
459 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
460 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
461 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
462 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
463 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
464 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
465 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
466
467
468
469 = 5.  Reference =
470
471 * 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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473

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