Wiki source code of LA66 LoRaWAN Module

Version 87.7 by Xiaoling on 2022/07/13 10:00
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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 == 2.3  Specification ==
106
107 * CPU: 32-bit 48 MHz
108 * Flash: 256KB
109 * RAM: 64KB
110 * Input Power Range: 1.8v ~~ 3.7v
111 * Power Consumption: < 4uA.
112 * Frequency Range: 150 MHz ~~ 960 MHz
113 * Maximum Power +22 dBm constant RF output
114 * High sensitivity: -148 dBm
115 * Temperature:
116 ** Storage: -55 ~~ +125℃
117 ** Operating: -40 ~~ +85℃
118 * Humidity:
119 ** Storage: 5 ~~ 95% (Non-Condensing)
120 ** Operating: 10 ~~ 95% (Non-Condensing)
121 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
122 * LoRa Rx current: <9 mA
123 * I/O Voltage: 3.3v
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
162 (% style="background-color:yellow" %)**GND  <-> GND
163 TXD  <->  TXD
164 RXD  <->  RXD**
165
166
167 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
168
169 Connect USB TTL Adapter to PC after connecting the wires
170
171
172 [[image:image-20220602102240-4.png||height="304" width="600"]]
173
174
175 === 2.8.3  Upgrade steps ===
176
177
178 ==== 1.  Switch SW1 to put in ISP position ====
179
180
181 [[image:image-20220602102824-5.png||height="306" width="600"]]
182
183
184 ==== 2.  Press the RST switch once ====
185
186 [[image:image-20220602104701-12.png||height="285" width="600"]]
187
188
189 ==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
190
191
192 (% 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/]]**
193
194
195 [[image:image-20220602103227-6.png]]
196
197
198 [[image:image-20220602103357-7.png]]
199
200
201
202 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
203 (% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
204
205
206 [[image:image-20220602103844-8.png]]
207
208
209
210 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
211 (% style="color:blue" %)**3. Select the bin file to burn**
212
213
214 [[image:image-20220602104144-9.png]]
215
216
217 [[image:image-20220602104251-10.png]]
218
219
220 [[image:image-20220602104402-11.png]]
221
222
223
224 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
225 (% style="color:blue" %)**4. Click to start the download**
226
227 [[image:image-20220602104923-13.png]]
228
229
230 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
231 (% style="color:blue" %)**5. Check update process**
232
233
234 [[image:image-20220602104948-14.png]]
235
236
237
238 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
239 (% style="color:blue" %)**The following picture shows that the burning is successful**
240
241 [[image:image-20220602105251-15.png]]
242
243
244
245 = 3.  LA66 USB LoRaWAN Adapter =
246
247
248 == 3.1  Overview ==
249
250 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.
251
252
253 == 3.2  Features ==
254
255 * LoRaWAN USB adapter base on LA66 LoRaWAN module
256 * Ultra-long RF range
257 * Support LoRaWAN v1.0.4 protocol
258 * Support peer-to-peer protocol
259 * TCXO crystal to ensure RF performance on low temperature
260 * Spring RF antenna
261 * Available in different frequency LoRaWAN frequency bands.
262 * World-wide unique OTAA keys.
263 * AT Command via UART-TTL interface
264 * Firmware upgradable via UART interface
265
266 == 3.3  Specification ==
267
268 * CPU: 32-bit 48 MHz
269 * Flash: 256KB
270 * RAM: 64KB
271 * Input Power Range: 5v
272 * Frequency Range: 150 MHz ~~ 960 MHz
273 * Maximum Power +22 dBm constant RF output
274 * High sensitivity: -148 dBm
275 * Temperature:
276 ** Storage: -55 ~~ +125℃
277 ** Operating: -40 ~~ +85℃
278 * Humidity:
279 ** Storage: 5 ~~ 95% (Non-Condensing)
280 ** Operating: 10 ~~ 95% (Non-Condensing)
281 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
282 * LoRa Rx current: <9 mA
283
284 == 3.4  Pin Mapping & LED ==
285
286
287
288 == 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
289
290
291 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
292
293
294 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
295
296
297 [[image:image-20220602171217-1.png||height="538" width="800"]]
298
299
300 Open the serial port tool
301
302 [[image:image-20220602161617-8.png]]
303
304 [[image:image-20220602161718-9.png||height="457" width="800"]]
305
306
307
308 (% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
309
310 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
311
312
313 [[image:image-20220602161935-10.png||height="498" width="800"]]
314
315
316
317 (% style="color:blue" %)**3. See Uplink Command**
318
319 Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
320
321 example: AT+SENDB=01,02,8,05820802581ea0a5
322
323 [[image:image-20220602162157-11.png||height="497" width="800"]]
324
325
326
327 (% style="color:blue" %)**4. Check to see if TTN received the message**
328
329 [[image:image-20220602162331-12.png||height="420" width="800"]]
330
331
332
333 == 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
334
335
336 **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]]
337
338
339 (% style="color:red" %)**Preconditions:**
340
341 (% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
342
343 (% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
344
345
346
347 (% style="color:blue" %)**Steps for usage:**
348
349 (% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
350
351 (% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
352
353 [[image:image-20220602115852-3.png||height="450" width="1187"]]
354
355
356
357 == 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
358
359
360 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
361
362
363 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
364
365 [[image:image-20220602171233-2.png||height="538" width="800"]]
366
367
368
369 (% style="color:blue" %)**2. Install Minicom in RPi.**
370
371 (% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
372
373 (% style="background-color:yellow" %)**apt update**
374
375 (% style="background-color:yellow" %)**apt install minicom**
376
377
378 Use minicom to connect to the RPI's terminal
379
380 [[image:image-20220602153146-3.png||height="439" width="500"]]
381
382
383
384 (% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**(%%)
385 (% style="color:blue" %)The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network
386
387 [[image:image-20220602154928-5.png||height="436" width="500"]]
388
389
390
391 (% style="color:blue" %)**4. Send Uplink message**
392
393 Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
394
395 example: AT+SENDB=01,02,8,05820802581ea0a5
396
397
398 [[image:image-20220602160339-6.png||height="517" width="600"]]
399
400
401
402 Check to see if TTN received the message
403
404 [[image:image-20220602160627-7.png||height="369" width="800"]]
405
406
407
408 == 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
409
410
411
412 == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
413
414
415
416
417 = 4.  Order Info =
418
419
420 **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
421
422
423 (% style="color:blue" %)**XXX**(%%): The default frequency band
424
425 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
426 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
427 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
428 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
429 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
430 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
431 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
432 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
433 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
434
435
436
437
438 = 5.  Reference =
439
440 * 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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