Wiki source code of LA66 LoRaWAN Module

Version 87.10 by Xiaoling on 2022/07/13 10:03
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7 = 1.  LA66 LoRaWAN Module =
8
9
10 == 1.1  What is LA66 LoRaWAN Module ==
11
12
13 (% 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.
14
15 (% 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.
16
17 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
18
19 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.
20
21 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
22
23
24 == 1.2  Features ==
25
26 * Support LoRaWAN v1.0.4 protocol
27 * Support peer-to-peer protocol
28 * TCXO crystal to ensure RF performance on low temperature
29 * SMD Antenna pad and i-pex antenna connector
30 * Available in different frequency LoRaWAN frequency bands.
31 * World-wide unique OTAA keys.
32 * AT Command via UART-TTL interface
33 * Firmware upgradable via UART interface
34 * Ultra-long RF range
35
36
37
38 == 1.3  Specification ==
39
40 * CPU: 32-bit 48 MHz
41 * Flash: 256KB
42 * RAM: 64KB
43 * Input Power Range: 1.8v ~~ 3.7v
44 * Power Consumption: < 4uA.
45 * Frequency Range: 150 MHz ~~ 960 MHz
46 * Maximum Power +22 dBm constant RF output
47 * High sensitivity: -148 dBm
48 * Temperature:
49 ** Storage: -55 ~~ +125℃
50 ** Operating: -40 ~~ +85℃
51 * Humidity:
52 ** Storage: 5 ~~ 95% (Non-Condensing)
53 ** Operating: 10 ~~ 95% (Non-Condensing)
54 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
55 * LoRa Rx current: <9 mA
56 * I/O Voltage: 3.3v
57
58
59
60 == 1.4  AT Command ==
61
62 AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
63
64
65 == 1.5  Dimension ==
66
67 [[image:image-20220517072526-1.png]]
68
69
70
71 == 1.6  Pin Mapping ==
72
73
74 [[image:image-20220523101537-1.png]]
75
76
77
78 == 1.7  Land Pattern ==
79
80 [[image:image-20220517072821-2.png]]
81
82
83
84 = 2.  LA66 LoRaWAN Shield =
85
86
87 == 2.1  Overview ==
88
89 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.
90
91
92 == 2.2  Features ==
93
94 * Arduino Shield base on LA66 LoRaWAN module
95 * Support LoRaWAN v1.0.4 protocol
96 * Support peer-to-peer protocol
97 * TCXO crystal to ensure RF performance on low temperature
98 * SMA connector
99 * Available in different frequency LoRaWAN frequency bands.
100 * World-wide unique OTAA keys.
101 * AT Command via UART-TTL interface
102 * Firmware upgradable via UART interface
103 * Ultra-long RF range
104
105
106
107 == 2.3  Specification ==
108
109 * CPU: 32-bit 48 MHz
110 * Flash: 256KB
111 * RAM: 64KB
112 * Input Power Range: 1.8v ~~ 3.7v
113 * Power Consumption: < 4uA.
114 * Frequency Range: 150 MHz ~~ 960 MHz
115 * Maximum Power +22 dBm constant RF output
116 * High sensitivity: -148 dBm
117 * Temperature:
118 ** Storage: -55 ~~ +125℃
119 ** Operating: -40 ~~ +85℃
120 * Humidity:
121 ** Storage: 5 ~~ 95% (Non-Condensing)
122 ** Operating: 10 ~~ 95% (Non-Condensing)
123 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
124 * LoRa Rx current: <9 mA
125 * I/O Voltage: 3.3v
126
127
128
129 == 2.4  Pin Mapping & LED ==
130
131
132
133 == 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
134
135
136
137 == 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
138
139
140
141 == 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
142
143
144
145 == 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
146
147
148 === 2.8.1  Items needed for update ===
149
150 1. LA66 LoRaWAN Shield
151 1. Arduino
152 1. USB TO TTL Adapter
153
154 [[image:image-20220602100052-2.png||height="385" width="600"]]
155
156
157 === 2.8.2  Connection ===
158
159
160 [[image:image-20220602101311-3.png||height="276" width="600"]]
161
162
163 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
164
165 (% style="background-color:yellow" %)**GND  <-> GND
166 TXD  <->  TXD
167 RXD  <->  RXD**
168
169
170 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
171
172 Connect USB TTL Adapter to PC after connecting the wires
173
174
175 [[image:image-20220602102240-4.png||height="304" width="600"]]
176
177
178 === 2.8.3  Upgrade steps ===
179
180
181 ==== 1.  Switch SW1 to put in ISP position ====
182
183
184 [[image:image-20220602102824-5.png||height="306" width="600"]]
185
186
187
188 ==== 2.  Press the RST switch once ====
189
190
191 [[image:image-20220602104701-12.png||height="285" width="600"]]
192
193
194
195 ==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
196
197
198 (% 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/]]**
199
200
201 [[image:image-20220602103227-6.png]]
202
203
204 [[image:image-20220602103357-7.png]]
205
206
207
208 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
209 (% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
210
211
212 [[image:image-20220602103844-8.png]]
213
214
215
216 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
217 (% style="color:blue" %)**3. Select the bin file to burn**
218
219
220 [[image:image-20220602104144-9.png]]
221
222
223 [[image:image-20220602104251-10.png]]
224
225
226 [[image:image-20220602104402-11.png]]
227
228
229
230 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
231 (% style="color:blue" %)**4. Click to start the download**
232
233 [[image:image-20220602104923-13.png]]
234
235
236
237 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
238 (% style="color:blue" %)**5. Check update process**
239
240
241 [[image:image-20220602104948-14.png]]
242
243
244
245 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
246 (% style="color:blue" %)**The following picture shows that the burning is successful**
247
248 [[image:image-20220602105251-15.png]]
249
250
251
252 = 3.  LA66 USB LoRaWAN Adapter =
253
254
255 == 3.1  Overview ==
256
257 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.
258
259
260 == 3.2  Features ==
261
262 * LoRaWAN USB adapter base on LA66 LoRaWAN module
263 * Ultra-long RF range
264 * Support LoRaWAN v1.0.4 protocol
265 * Support peer-to-peer protocol
266 * TCXO crystal to ensure RF performance on low temperature
267 * Spring RF antenna
268 * Available in different frequency LoRaWAN frequency bands.
269 * World-wide unique OTAA keys.
270 * AT Command via UART-TTL interface
271 * Firmware upgradable via UART interface
272
273
274
275 == 3.3  Specification ==
276
277 * CPU: 32-bit 48 MHz
278 * Flash: 256KB
279 * RAM: 64KB
280 * Input Power Range: 5v
281 * Frequency Range: 150 MHz ~~ 960 MHz
282 * Maximum Power +22 dBm constant RF output
283 * High sensitivity: -148 dBm
284 * Temperature:
285 ** Storage: -55 ~~ +125℃
286 ** Operating: -40 ~~ +85℃
287 * Humidity:
288 ** Storage: 5 ~~ 95% (Non-Condensing)
289 ** Operating: 10 ~~ 95% (Non-Condensing)
290 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
291 * LoRa Rx current: <9 mA
292
293
294
295 == 3.4  Pin Mapping & LED ==
296
297
298
299 == 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
300
301
302 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
303
304
305 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
306
307
308 [[image:image-20220602171217-1.png||height="538" width="800"]]
309
310
311 Open the serial port tool
312
313 [[image:image-20220602161617-8.png]]
314
315 [[image:image-20220602161718-9.png||height="457" width="800"]]
316
317
318
319 (% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
320
321 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
322
323
324 [[image:image-20220602161935-10.png||height="498" width="800"]]
325
326
327
328 (% style="color:blue" %)**3. See Uplink Command**
329
330 Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
331
332 example: AT+SENDB=01,02,8,05820802581ea0a5
333
334 [[image:image-20220602162157-11.png||height="497" width="800"]]
335
336
337
338 (% style="color:blue" %)**4. Check to see if TTN received the message**
339
340 [[image:image-20220602162331-12.png||height="420" width="800"]]
341
342
343
344 == 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
345
346
347 **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]]
348
349
350 (% style="color:red" %)**Preconditions:**
351
352 (% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
353
354 (% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
355
356
357
358 (% style="color:blue" %)**Steps for usage:**
359
360 (% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
361
362 (% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
363
364 [[image:image-20220602115852-3.png||height="450" width="1187"]]
365
366
367
368 == 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
369
370
371 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
372
373
374 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
375
376 [[image:image-20220602171233-2.png||height="538" width="800"]]
377
378
379
380 (% style="color:blue" %)**2. Install Minicom in RPi.**
381
382 (% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
383
384 (% style="background-color:yellow" %)**apt update**
385
386 (% style="background-color:yellow" %)**apt install minicom**
387
388
389 Use minicom to connect to the RPI's terminal
390
391 [[image:image-20220602153146-3.png||height="439" width="500"]]
392
393
394
395 (% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**(%%)
396 (% style="color:blue" %)The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network
397
398 [[image:image-20220602154928-5.png||height="436" width="500"]]
399
400
401
402 (% style="color:blue" %)**4. Send Uplink message**
403
404 Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
405
406 example: AT+SENDB=01,02,8,05820802581ea0a5
407
408
409 [[image:image-20220602160339-6.png||height="517" width="600"]]
410
411
412
413 Check to see if TTN received the message
414
415 [[image:image-20220602160627-7.png||height="369" width="800"]]
416
417
418
419 == 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
420
421
422
423 == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
424
425
426
427
428 = 4.  Order Info =
429
430
431 **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
432
433
434 (% style="color:blue" %)**XXX**(%%): The default frequency band
435
436 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
437 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
438 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
439 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
440 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
441 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
442 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
443 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
444 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
445
446
447
448
449 = 5.  Reference =
450
451 * 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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453

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