Wiki source code of LA66 LoRaWAN Module

Version 87.16 by Xiaoling on 2022/07/13 10:10
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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 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
179
180 (((
181 (% style="background-color:yellow" %)**GND  <-> GND
182 TXD  <->  TXD
183 RXD  <->  RXD**
184 )))
185
186
187 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
188
189 Connect USB TTL Adapter to PC after connecting the wires
190
191
192 [[image:image-20220602102240-4.png||height="304" width="600"]]
193
194
195 === 2.8.3  Upgrade steps ===
196
197
198 ==== 1.  Switch SW1 to put in ISP position ====
199
200
201 [[image:image-20220602102824-5.png||height="306" width="600"]]
202
203
204
205 ==== 2.  Press the RST switch once ====
206
207
208 [[image:image-20220602104701-12.png||height="285" width="600"]]
209
210
211
212 ==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
213
214
215 (% 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/]]**
216
217
218 [[image:image-20220602103227-6.png]]
219
220
221 [[image:image-20220602103357-7.png]]
222
223
224
225 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
226 (% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
227
228
229 [[image:image-20220602103844-8.png]]
230
231
232
233 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
234 (% style="color:blue" %)**3. Select the bin file to burn**
235
236
237 [[image:image-20220602104144-9.png]]
238
239
240 [[image:image-20220602104251-10.png]]
241
242
243 [[image:image-20220602104402-11.png]]
244
245
246
247 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
248 (% style="color:blue" %)**4. Click to start the download**
249
250 [[image:image-20220602104923-13.png]]
251
252
253
254 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
255 (% style="color:blue" %)**5. Check update process**
256
257
258 [[image:image-20220602104948-14.png]]
259
260
261
262 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
263 (% style="color:blue" %)**The following picture shows that the burning is successful**
264
265 [[image:image-20220602105251-15.png]]
266
267
268
269 = 3.  LA66 USB LoRaWAN Adapter =
270
271
272 == 3.1  Overview ==
273
274 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.
275
276
277 == 3.2  Features ==
278
279 * LoRaWAN USB adapter base on LA66 LoRaWAN module
280 * Ultra-long RF range
281 * Support LoRaWAN v1.0.4 protocol
282 * Support peer-to-peer protocol
283 * TCXO crystal to ensure RF performance on low temperature
284 * Spring RF antenna
285 * Available in different frequency LoRaWAN frequency bands.
286 * World-wide unique OTAA keys.
287 * AT Command via UART-TTL interface
288 * Firmware upgradable via UART interface
289
290
291
292 == 3.3  Specification ==
293
294 * CPU: 32-bit 48 MHz
295 * Flash: 256KB
296 * RAM: 64KB
297 * Input Power Range: 5v
298 * Frequency Range: 150 MHz ~~ 960 MHz
299 * Maximum Power +22 dBm constant RF output
300 * High sensitivity: -148 dBm
301 * Temperature:
302 ** Storage: -55 ~~ +125℃
303 ** Operating: -40 ~~ +85℃
304 * Humidity:
305 ** Storage: 5 ~~ 95% (Non-Condensing)
306 ** Operating: 10 ~~ 95% (Non-Condensing)
307 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
308 * LoRa Rx current: <9 mA
309
310
311
312 == 3.4  Pin Mapping & LED ==
313
314
315
316 == 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
317
318
319 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
320
321
322 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
323
324
325 [[image:image-20220602171217-1.png||height="538" width="800"]]
326
327
328 Open the serial port tool
329
330 [[image:image-20220602161617-8.png]]
331
332 [[image:image-20220602161718-9.png||height="457" width="800"]]
333
334
335
336 (% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
337
338 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
339
340
341 [[image:image-20220602161935-10.png||height="498" width="800"]]
342
343
344
345 (% style="color:blue" %)**3. See Uplink Command**
346
347 Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
348
349 example: AT+SENDB=01,02,8,05820802581ea0a5
350
351 [[image:image-20220602162157-11.png||height="497" width="800"]]
352
353
354
355 (% style="color:blue" %)**4. Check to see if TTN received the message**
356
357 [[image:image-20220602162331-12.png||height="420" width="800"]]
358
359
360
361 == 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
362
363
364 **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]]
365
366
367 (% style="color:red" %)**Preconditions:**
368
369 (% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
370
371 (% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
372
373
374
375 (% style="color:blue" %)**Steps for usage:**
376
377 (% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
378
379 (% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
380
381 [[image:image-20220602115852-3.png||height="450" width="1187"]]
382
383
384
385 == 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
386
387
388 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
389
390
391 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
392
393 [[image:image-20220602171233-2.png||height="538" width="800"]]
394
395
396
397 (% style="color:blue" %)**2. Install Minicom in RPi.**
398
399 (% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
400
401 (% style="background-color:yellow" %)**apt update**
402
403 (% style="background-color:yellow" %)**apt install minicom**
404
405
406 Use minicom to connect to the RPI's terminal
407
408 [[image:image-20220602153146-3.png||height="439" width="500"]]
409
410
411
412 (% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
413
414 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
415
416
417 [[image:image-20220602154928-5.png||height="436" width="500"]]
418
419
420
421 (% style="color:blue" %)**4. Send Uplink message**
422
423 Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
424
425 example: AT+SENDB=01,02,8,05820802581ea0a5
426
427
428 [[image:image-20220602160339-6.png||height="517" width="600"]]
429
430
431
432 Check to see if TTN received the message
433
434 [[image:image-20220602160627-7.png||height="369" width="800"]]
435
436
437
438 == 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
439
440
441
442 == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
443
444
445
446
447 = 4.  Order Info =
448
449
450 **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
451
452
453 (% style="color:blue" %)**XXX**(%%): The default frequency band
454
455 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
456 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
457 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
458 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
459 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
460 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
461 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
462 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
463 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
464
465
466
467 = 5.  Reference =
468
469 * 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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