Wiki source code of LA66 LoRaWAN Module

Version 87.15 by Xiaoling on 2022/07/13 10:09
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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 (% style="background-color:yellow" %)**GND  <-> GND
181 TXD  <->  TXD
182 RXD  <->  RXD**
183
184
185 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
186
187 Connect USB TTL Adapter to PC after connecting the wires
188
189
190 [[image:image-20220602102240-4.png||height="304" width="600"]]
191
192
193 === 2.8.3  Upgrade steps ===
194
195
196 ==== 1.  Switch SW1 to put in ISP position ====
197
198
199 [[image:image-20220602102824-5.png||height="306" width="600"]]
200
201
202
203 ==== 2.  Press the RST switch once ====
204
205
206 [[image:image-20220602104701-12.png||height="285" width="600"]]
207
208
209
210 ==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
211
212
213 (% 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/]]**
214
215
216 [[image:image-20220602103227-6.png]]
217
218
219 [[image:image-20220602103357-7.png]]
220
221
222
223 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
224 (% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
225
226
227 [[image:image-20220602103844-8.png]]
228
229
230
231 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
232 (% style="color:blue" %)**3. Select the bin file to burn**
233
234
235 [[image:image-20220602104144-9.png]]
236
237
238 [[image:image-20220602104251-10.png]]
239
240
241 [[image:image-20220602104402-11.png]]
242
243
244
245 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
246 (% style="color:blue" %)**4. Click to start the download**
247
248 [[image:image-20220602104923-13.png]]
249
250
251
252 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
253 (% style="color:blue" %)**5. Check update process**
254
255
256 [[image:image-20220602104948-14.png]]
257
258
259
260 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
261 (% style="color:blue" %)**The following picture shows that the burning is successful**
262
263 [[image:image-20220602105251-15.png]]
264
265
266
267 = 3.  LA66 USB LoRaWAN Adapter =
268
269
270 == 3.1  Overview ==
271
272 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.
273
274
275 == 3.2  Features ==
276
277 * LoRaWAN USB adapter base on LA66 LoRaWAN module
278 * Ultra-long RF range
279 * Support LoRaWAN v1.0.4 protocol
280 * Support peer-to-peer protocol
281 * TCXO crystal to ensure RF performance on low temperature
282 * Spring RF antenna
283 * Available in different frequency LoRaWAN frequency bands.
284 * World-wide unique OTAA keys.
285 * AT Command via UART-TTL interface
286 * Firmware upgradable via UART interface
287
288
289
290 == 3.3  Specification ==
291
292 * CPU: 32-bit 48 MHz
293 * Flash: 256KB
294 * RAM: 64KB
295 * Input Power Range: 5v
296 * Frequency Range: 150 MHz ~~ 960 MHz
297 * Maximum Power +22 dBm constant RF output
298 * High sensitivity: -148 dBm
299 * Temperature:
300 ** Storage: -55 ~~ +125℃
301 ** Operating: -40 ~~ +85℃
302 * Humidity:
303 ** Storage: 5 ~~ 95% (Non-Condensing)
304 ** Operating: 10 ~~ 95% (Non-Condensing)
305 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
306 * LoRa Rx current: <9 mA
307
308
309
310 == 3.4  Pin Mapping & LED ==
311
312
313
314 == 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
315
316
317 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
318
319
320 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
321
322
323 [[image:image-20220602171217-1.png||height="538" width="800"]]
324
325
326 Open the serial port tool
327
328 [[image:image-20220602161617-8.png]]
329
330 [[image:image-20220602161718-9.png||height="457" width="800"]]
331
332
333
334 (% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
335
336 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
337
338
339 [[image:image-20220602161935-10.png||height="498" width="800"]]
340
341
342
343 (% style="color:blue" %)**3. See Uplink Command**
344
345 Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
346
347 example: AT+SENDB=01,02,8,05820802581ea0a5
348
349 [[image:image-20220602162157-11.png||height="497" width="800"]]
350
351
352
353 (% style="color:blue" %)**4. Check to see if TTN received the message**
354
355 [[image:image-20220602162331-12.png||height="420" width="800"]]
356
357
358
359 == 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
360
361
362 **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]]
363
364
365 (% style="color:red" %)**Preconditions:**
366
367 (% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
368
369 (% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
370
371
372
373 (% style="color:blue" %)**Steps for usage:**
374
375 (% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
376
377 (% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
378
379 [[image:image-20220602115852-3.png||height="450" width="1187"]]
380
381
382
383 == 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
384
385
386 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
387
388
389 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
390
391 [[image:image-20220602171233-2.png||height="538" width="800"]]
392
393
394
395 (% style="color:blue" %)**2. Install Minicom in RPi.**
396
397 (% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
398
399 (% style="background-color:yellow" %)**apt update**
400
401 (% style="background-color:yellow" %)**apt install minicom**
402
403
404 Use minicom to connect to the RPI's terminal
405
406 [[image:image-20220602153146-3.png||height="439" width="500"]]
407
408
409
410 (% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
411
412 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
413
414
415 [[image:image-20220602154928-5.png||height="436" width="500"]]
416
417
418
419 (% style="color:blue" %)**4. Send Uplink message**
420
421 Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
422
423 example: AT+SENDB=01,02,8,05820802581ea0a5
424
425
426 [[image:image-20220602160339-6.png||height="517" width="600"]]
427
428
429
430 Check to see if TTN received the message
431
432 [[image:image-20220602160627-7.png||height="369" width="800"]]
433
434
435
436 == 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
437
438
439
440 == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
441
442
443
444
445 = 4.  Order Info =
446
447
448 **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
449
450
451 (% style="color:blue" %)**XXX**(%%): The default frequency band
452
453 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
454 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
455 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
456 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
457 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
458 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
459 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
460 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
461 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
462
463
464
465 = 5.  Reference =
466
467 * Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
468
469

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