Wiki source code of LA66 LoRaWAN Module

Version 87.8 by Xiaoling on 2022/07/13 10:01
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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 ==== 2.  Press the RST switch once ====
188
189 [[image:image-20220602104701-12.png||height="285" width="600"]]
190
191
192 ==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
193
194
195 (% 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/]]**
196
197
198 [[image:image-20220602103227-6.png]]
199
200
201 [[image:image-20220602103357-7.png]]
202
203
204
205 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
206 (% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
207
208
209 [[image:image-20220602103844-8.png]]
210
211
212
213 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
214 (% style="color:blue" %)**3. Select the bin file to burn**
215
216
217 [[image:image-20220602104144-9.png]]
218
219
220 [[image:image-20220602104251-10.png]]
221
222
223 [[image:image-20220602104402-11.png]]
224
225
226
227 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
228 (% style="color:blue" %)**4. Click to start the download**
229
230 [[image:image-20220602104923-13.png]]
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 == 3.3  Specification ==
270
271 * CPU: 32-bit 48 MHz
272 * Flash: 256KB
273 * RAM: 64KB
274 * Input Power Range: 5v
275 * Frequency Range: 150 MHz ~~ 960 MHz
276 * Maximum Power +22 dBm constant RF output
277 * High sensitivity: -148 dBm
278 * Temperature:
279 ** Storage: -55 ~~ +125℃
280 ** Operating: -40 ~~ +85℃
281 * Humidity:
282 ** Storage: 5 ~~ 95% (Non-Condensing)
283 ** Operating: 10 ~~ 95% (Non-Condensing)
284 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
285 * LoRa Rx current: <9 mA
286
287 == 3.4  Pin Mapping & LED ==
288
289
290
291 == 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
292
293
294 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
295
296
297 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
298
299
300 [[image:image-20220602171217-1.png||height="538" width="800"]]
301
302
303 Open the serial port tool
304
305 [[image:image-20220602161617-8.png]]
306
307 [[image:image-20220602161718-9.png||height="457" width="800"]]
308
309
310
311 (% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
312
313 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
314
315
316 [[image:image-20220602161935-10.png||height="498" width="800"]]
317
318
319
320 (% style="color:blue" %)**3. See Uplink Command**
321
322 Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
323
324 example: AT+SENDB=01,02,8,05820802581ea0a5
325
326 [[image:image-20220602162157-11.png||height="497" width="800"]]
327
328
329
330 (% style="color:blue" %)**4. Check to see if TTN received the message**
331
332 [[image:image-20220602162331-12.png||height="420" width="800"]]
333
334
335
336 == 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
337
338
339 **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]]
340
341
342 (% style="color:red" %)**Preconditions:**
343
344 (% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
345
346 (% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
347
348
349
350 (% style="color:blue" %)**Steps for usage:**
351
352 (% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
353
354 (% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
355
356 [[image:image-20220602115852-3.png||height="450" width="1187"]]
357
358
359
360 == 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
361
362
363 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
364
365
366 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
367
368 [[image:image-20220602171233-2.png||height="538" width="800"]]
369
370
371
372 (% style="color:blue" %)**2. Install Minicom in RPi.**
373
374 (% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
375
376 (% style="background-color:yellow" %)**apt update**
377
378 (% style="background-color:yellow" %)**apt install minicom**
379
380
381 Use minicom to connect to the RPI's terminal
382
383 [[image:image-20220602153146-3.png||height="439" width="500"]]
384
385
386
387 (% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**(%%)
388 (% style="color:blue" %)The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network
389
390 [[image:image-20220602154928-5.png||height="436" width="500"]]
391
392
393
394 (% style="color:blue" %)**4. Send Uplink message**
395
396 Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
397
398 example: AT+SENDB=01,02,8,05820802581ea0a5
399
400
401 [[image:image-20220602160339-6.png||height="517" width="600"]]
402
403
404
405 Check to see if TTN received the message
406
407 [[image:image-20220602160627-7.png||height="369" width="800"]]
408
409
410
411 == 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
412
413
414
415 == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
416
417
418
419
420 = 4.  Order Info =
421
422
423 **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
424
425
426 (% style="color:blue" %)**XXX**(%%): The default frequency band
427
428 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
429 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
430 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
431 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
432 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
433 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
434 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
435 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
436 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
437
438
439
440
441 = 5.  Reference =
442
443 * 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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