Wiki source code of LA66 LoRaWAN Module

Version 87.11 by Xiaoling on 2022/07/13 10:04
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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 == 1.3  Specification ==
38
39 * CPU: 32-bit 48 MHz
40 * Flash: 256KB
41 * RAM: 64KB
42 * Input Power Range: 1.8v ~~ 3.7v
43 * Power Consumption: < 4uA.
44 * Frequency Range: 150 MHz ~~ 960 MHz
45 * Maximum Power +22 dBm constant RF output
46 * High sensitivity: -148 dBm
47 * Temperature:
48 ** Storage: -55 ~~ +125℃
49 ** Operating: -40 ~~ +85℃
50 * Humidity:
51 ** Storage: 5 ~~ 95% (Non-Condensing)
52 ** Operating: 10 ~~ 95% (Non-Condensing)
53 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
54 * LoRa Rx current: <9 mA
55 * I/O Voltage: 3.3v
56
57
58 == 1.4  AT Command ==
59
60 AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
61
62
63 == 1.5  Dimension ==
64
65 [[image:image-20220517072526-1.png]]
66
67
68
69 == 1.6  Pin Mapping ==
70
71
72 [[image:image-20220523101537-1.png]]
73
74
75
76 == 1.7  Land Pattern ==
77
78 [[image:image-20220517072821-2.png]]
79
80
81
82 = 2.  LA66 LoRaWAN Shield =
83
84
85 == 2.1  Overview ==
86
87 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.
88
89
90 == 2.2  Features ==
91
92 * Arduino Shield base on LA66 LoRaWAN module
93 * Support LoRaWAN v1.0.4 protocol
94 * Support peer-to-peer protocol
95 * TCXO crystal to ensure RF performance on low temperature
96 * SMA connector
97 * Available in different frequency LoRaWAN frequency bands.
98 * World-wide unique OTAA keys.
99 * AT Command via UART-TTL interface
100 * Firmware upgradable via UART interface
101 * Ultra-long RF range
102
103
104 == 2.3  Specification ==
105
106 * CPU: 32-bit 48 MHz
107 * Flash: 256KB
108 * RAM: 64KB
109 * Input Power Range: 1.8v ~~ 3.7v
110 * Power Consumption: < 4uA.
111 * Frequency Range: 150 MHz ~~ 960 MHz
112 * Maximum Power +22 dBm constant RF output
113 * High sensitivity: -148 dBm
114 * Temperature:
115 ** Storage: -55 ~~ +125℃
116 ** Operating: -40 ~~ +85℃
117 * Humidity:
118 ** Storage: 5 ~~ 95% (Non-Condensing)
119 ** Operating: 10 ~~ 95% (Non-Condensing)
120 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
121 * LoRa Rx current: <9 mA
122 * I/O Voltage: 3.3v
123
124
125 == 2.4  Pin Mapping & LED ==
126
127
128
129 == 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
130
131
132
133 == 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
134
135
136
137 == 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
138
139
140
141 == 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
142
143
144 === 2.8.1  Items needed for update ===
145
146 1. LA66 LoRaWAN Shield
147 1. Arduino
148 1. USB TO TTL Adapter
149
150 [[image:image-20220602100052-2.png||height="385" width="600"]]
151
152
153 === 2.8.2  Connection ===
154
155
156 [[image:image-20220602101311-3.png||height="276" width="600"]]
157
158
159 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
160
161 (% style="background-color:yellow" %)**GND  <-> GND
162 TXD  <->  TXD
163 RXD  <->  RXD**
164
165
166 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
167
168 Connect USB TTL Adapter to PC after connecting the wires
169
170
171 [[image:image-20220602102240-4.png||height="304" width="600"]]
172
173
174 === 2.8.3  Upgrade steps ===
175
176
177 ==== 1.  Switch SW1 to put in ISP position ====
178
179
180 [[image:image-20220602102824-5.png||height="306" width="600"]]
181
182
183
184 ==== 2.  Press the RST switch once ====
185
186
187 [[image:image-20220602104701-12.png||height="285" width="600"]]
188
189
190
191 ==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
192
193
194 (% 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/]]**
195
196
197 [[image:image-20220602103227-6.png]]
198
199
200 [[image:image-20220602103357-7.png]]
201
202
203
204 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
205 (% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
206
207
208 [[image:image-20220602103844-8.png]]
209
210
211
212 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
213 (% style="color:blue" %)**3. Select the bin file to burn**
214
215
216 [[image:image-20220602104144-9.png]]
217
218
219 [[image:image-20220602104251-10.png]]
220
221
222 [[image:image-20220602104402-11.png]]
223
224
225
226 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
227 (% style="color:blue" %)**4. Click to start the download**
228
229 [[image:image-20220602104923-13.png]]
230
231
232
233 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
234 (% style="color:blue" %)**5. Check update process**
235
236
237 [[image:image-20220602104948-14.png]]
238
239
240
241 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
242 (% style="color:blue" %)**The following picture shows that the burning is successful**
243
244 [[image:image-20220602105251-15.png]]
245
246
247
248 = 3.  LA66 USB LoRaWAN Adapter =
249
250
251 == 3.1  Overview ==
252
253 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.
254
255
256 == 3.2  Features ==
257
258 * LoRaWAN USB adapter base on LA66 LoRaWAN module
259 * Ultra-long RF range
260 * Support LoRaWAN v1.0.4 protocol
261 * Support peer-to-peer protocol
262 * TCXO crystal to ensure RF performance on low temperature
263 * Spring RF antenna
264 * Available in different frequency LoRaWAN frequency bands.
265 * World-wide unique OTAA keys.
266 * AT Command via UART-TTL interface
267 * Firmware upgradable via UART interface
268
269
270 == 3.3  Specification ==
271
272 * CPU: 32-bit 48 MHz
273 * Flash: 256KB
274 * RAM: 64KB
275 * Input Power Range: 5v
276 * Frequency Range: 150 MHz ~~ 960 MHz
277 * Maximum Power +22 dBm constant RF output
278 * High sensitivity: -148 dBm
279 * Temperature:
280 ** Storage: -55 ~~ +125℃
281 ** Operating: -40 ~~ +85℃
282 * Humidity:
283 ** Storage: 5 ~~ 95% (Non-Condensing)
284 ** Operating: 10 ~~ 95% (Non-Condensing)
285 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
286 * LoRa Rx current: <9 mA
287
288
289 == 3.4  Pin Mapping & LED ==
290
291
292
293 == 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
294
295
296 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
297
298
299 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
300
301
302 [[image:image-20220602171217-1.png||height="538" width="800"]]
303
304
305 Open the serial port tool
306
307 [[image:image-20220602161617-8.png]]
308
309 [[image:image-20220602161718-9.png||height="457" width="800"]]
310
311
312
313 (% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
314
315 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
316
317
318 [[image:image-20220602161935-10.png||height="498" width="800"]]
319
320
321
322 (% style="color:blue" %)**3. See Uplink Command**
323
324 Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
325
326 example: AT+SENDB=01,02,8,05820802581ea0a5
327
328 [[image:image-20220602162157-11.png||height="497" width="800"]]
329
330
331
332 (% style="color:blue" %)**4. Check to see if TTN received the message**
333
334 [[image:image-20220602162331-12.png||height="420" width="800"]]
335
336
337
338 == 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
339
340
341 **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]]
342
343
344 (% style="color:red" %)**Preconditions:**
345
346 (% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
347
348 (% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
349
350
351
352 (% style="color:blue" %)**Steps for usage:**
353
354 (% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
355
356 (% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
357
358 [[image:image-20220602115852-3.png||height="450" width="1187"]]
359
360
361
362 == 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
363
364
365 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
366
367
368 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
369
370 [[image:image-20220602171233-2.png||height="538" width="800"]]
371
372
373
374 (% style="color:blue" %)**2. Install Minicom in RPi.**
375
376 (% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
377
378 (% style="background-color:yellow" %)**apt update**
379
380 (% style="background-color:yellow" %)**apt install minicom**
381
382
383 Use minicom to connect to the RPI's terminal
384
385 [[image:image-20220602153146-3.png||height="439" width="500"]]
386
387
388
389 (% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
390
391 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
392
393
394 [[image:image-20220602154928-5.png||height="436" width="500"]]
395
396
397
398 (% style="color:blue" %)**4. Send Uplink message**
399
400 Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
401
402 example: AT+SENDB=01,02,8,05820802581ea0a5
403
404
405 [[image:image-20220602160339-6.png||height="517" width="600"]]
406
407
408
409 Check to see if TTN received the message
410
411 [[image:image-20220602160627-7.png||height="369" width="800"]]
412
413
414
415 == 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
416
417
418
419 == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
420
421
422
423
424 = 4.  Order Info =
425
426
427 **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
428
429
430 (% style="color:blue" %)**XXX**(%%): The default frequency band
431
432 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
433 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
434 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
435 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
436 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
437 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
438 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
439 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
440 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
441
442
443
444 = 5.  Reference =
445
446 * Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
447
448

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