Wiki source code of LA66 LoRaWAN Module

Version 88.2 by Edwin Chen on 2022/07/15 00:07
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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 [[image:image-20220715000242-1.png||height="110" width="132"]]
17
18 (% 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.
19 )))
20
21 (((
22 (% 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.
23 )))
24
25 (((
26 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
27 )))
28
29 (((
30 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.
31 )))
32
33 (((
34 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
35 )))
36
37
38 == 1.2  Features ==
39
40 * Support LoRaWAN v1.0.4 protocol
41 * Support peer-to-peer protocol
42 * TCXO crystal to ensure RF performance on low temperature
43 * SMD Antenna pad and i-pex antenna connector
44 * Available in different frequency LoRaWAN frequency bands.
45 * World-wide unique OTAA keys.
46 * AT Command via UART-TTL interface
47 * Firmware upgradable via UART interface
48 * Ultra-long RF range
49
50
51 == 1.3  Specification ==
52
53 * CPU: 32-bit 48 MHz
54 * Flash: 256KB
55 * RAM: 64KB
56 * Input Power Range: 1.8v ~~ 3.7v
57 * Power Consumption: < 4uA.
58 * Frequency Range: 150 MHz ~~ 960 MHz
59 * Maximum Power +22 dBm constant RF output
60 * High sensitivity: -148 dBm
61 * Temperature:
62 ** Storage: -55 ~~ +125℃
63 ** Operating: -40 ~~ +85℃
64 * Humidity:
65 ** Storage: 5 ~~ 95% (Non-Condensing)
66 ** Operating: 10 ~~ 95% (Non-Condensing)
67 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
68 * LoRa Rx current: <9 mA
69 * I/O Voltage: 3.3v
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 == 2.3  Specification ==
119
120 * CPU: 32-bit 48 MHz
121 * Flash: 256KB
122 * RAM: 64KB
123 * Input Power Range: 1.8v ~~ 3.7v
124 * Power Consumption: < 4uA.
125 * Frequency Range: 150 MHz ~~ 960 MHz
126 * Maximum Power +22 dBm constant RF output
127 * High sensitivity: -148 dBm
128 * Temperature:
129 ** Storage: -55 ~~ +125℃
130 ** Operating: -40 ~~ +85℃
131 * Humidity:
132 ** Storage: 5 ~~ 95% (Non-Condensing)
133 ** Operating: 10 ~~ 95% (Non-Condensing)
134 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
135 * LoRa Rx current: <9 mA
136 * I/O Voltage: 3.3v
137
138
139 == 2.4  Pin Mapping & LED ==
140
141
142
143 == 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
144
145
146
147 == 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
148
149
150
151 == 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
152
153
154
155 == 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
156
157
158 === 2.8.1  Items needed for update ===
159
160 1. LA66 LoRaWAN Shield
161 1. Arduino
162 1. USB TO TTL Adapter
163
164
165
166 [[image:image-20220602100052-2.png||height="385" width="600"]]
167
168
169 === 2.8.2  Connection ===
170
171
172 [[image:image-20220602101311-3.png||height="276" width="600"]]
173
174
175 (((
176 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
177 )))
178
179 (((
180 (% style="background-color:yellow" %)**GND  <-> GND
181 TXD  <->  TXD
182 RXD  <->  RXD**
183 )))
184
185
186 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
187
188 Connect USB TTL Adapter to PC after connecting the wires
189
190
191 [[image:image-20220602102240-4.png||height="304" width="600"]]
192
193
194 === 2.8.3  Upgrade steps ===
195
196
197 ==== 1.  Switch SW1 to put in ISP position ====
198
199
200 [[image:image-20220602102824-5.png||height="306" width="600"]]
201
202
203
204 ==== 2.  Press the RST switch once ====
205
206
207 [[image:image-20220602104701-12.png||height="285" width="600"]]
208
209
210
211 ==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
212
213
214 (((
215 (% 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/]]**
216 )))
217
218
219 [[image:image-20220602103227-6.png]]
220
221
222 [[image:image-20220602103357-7.png]]
223
224
225
226 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
227 (% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
228
229
230 [[image:image-20220602103844-8.png]]
231
232
233
234 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
235 (% style="color:blue" %)**3. Select the bin file to burn**
236
237
238 [[image:image-20220602104144-9.png]]
239
240
241 [[image:image-20220602104251-10.png]]
242
243
244 [[image:image-20220602104402-11.png]]
245
246
247
248 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
249 (% style="color:blue" %)**4. Click to start the download**
250
251 [[image:image-20220602104923-13.png]]
252
253
254
255 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
256 (% style="color:blue" %)**5. Check update process**
257
258
259 [[image:image-20220602104948-14.png]]
260
261
262
263 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
264 (% style="color:blue" %)**The following picture shows that the burning is successful**
265
266 [[image:image-20220602105251-15.png]]
267
268
269
270 = 3.  LA66 USB LoRaWAN Adapter =
271
272
273 == 3.1  Overview ==
274
275 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.
276
277
278 == 3.2  Features ==
279
280 * LoRaWAN USB adapter base on LA66 LoRaWAN module
281 * Ultra-long RF range
282 * Support LoRaWAN v1.0.4 protocol
283 * Support peer-to-peer protocol
284 * TCXO crystal to ensure RF performance on low temperature
285 * Spring RF antenna
286 * Available in different frequency LoRaWAN frequency bands.
287 * World-wide unique OTAA keys.
288 * AT Command via UART-TTL interface
289 * Firmware upgradable via UART interface
290
291
292 == 3.3  Specification ==
293
294 * CPU: 32-bit 48 MHz
295 * Flash: 256KB
296 * RAM: 64KB
297 * Input Power Range: 5v
298 * Frequency Range: 150 MHz ~~ 960 MHz
299 * Maximum Power +22 dBm constant RF output
300 * High sensitivity: -148 dBm
301 * Temperature:
302 ** Storage: -55 ~~ +125℃
303 ** Operating: -40 ~~ +85℃
304 * Humidity:
305 ** Storage: 5 ~~ 95% (Non-Condensing)
306 ** Operating: 10 ~~ 95% (Non-Condensing)
307 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
308 * LoRa Rx current: <9 mA
309
310
311 == 3.4  Pin Mapping & LED ==
312
313
314
315 == 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
316
317
318 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
319
320
321 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
322
323
324 [[image:image-20220602171217-1.png||height="538" width="800"]]
325
326
327 Open the serial port tool
328
329 [[image:image-20220602161617-8.png]]
330
331 [[image:image-20220602161718-9.png||height="457" width="800"]]
332
333
334
335 (% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
336
337 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
338
339
340 [[image:image-20220602161935-10.png||height="498" width="800"]]
341
342
343
344 (% style="color:blue" %)**3. See Uplink Command**
345
346 Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
347
348 example: AT+SENDB=01,02,8,05820802581ea0a5
349
350 [[image:image-20220602162157-11.png||height="497" width="800"]]
351
352
353
354 (% style="color:blue" %)**4. Check to see if TTN received the message**
355
356 [[image:image-20220602162331-12.png||height="420" width="800"]]
357
358
359
360 == 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
361
362
363 **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]]
364
365
366 (% style="color:red" %)**Preconditions:**
367
368 (% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
369
370 (% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
371
372
373
374 (% style="color:blue" %)**Steps for usage:**
375
376 (% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
377
378 (% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
379
380 [[image:image-20220602115852-3.png||height="450" width="1187"]]
381
382
383
384 == 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
385
386
387 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
388
389
390 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
391
392 [[image:image-20220602171233-2.png||height="538" width="800"]]
393
394
395
396 (% style="color:blue" %)**2. Install Minicom in RPi.**
397
398 (% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
399
400 (% style="background-color:yellow" %)**apt update**
401
402 (% style="background-color:yellow" %)**apt install minicom**
403
404
405 Use minicom to connect to the RPI's terminal
406
407 [[image:image-20220602153146-3.png||height="439" width="500"]]
408
409
410
411 (% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
412
413 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
414
415
416 [[image:image-20220602154928-5.png||height="436" width="500"]]
417
418
419
420 (% style="color:blue" %)**4. Send Uplink message**
421
422 Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
423
424 example: AT+SENDB=01,02,8,05820802581ea0a5
425
426
427 [[image:image-20220602160339-6.png||height="517" width="600"]]
428
429
430
431 Check to see if TTN received the message
432
433 [[image:image-20220602160627-7.png||height="369" width="800"]]
434
435
436
437 == 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
438
439
440
441 == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
442
443
444
445
446 = 4.  Order Info =
447
448
449 **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
450
451
452 (% style="color:blue" %)**XXX**(%%): The default frequency band
453
454 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
455 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
456 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
457 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
458 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
459 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
460 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
461 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
462 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
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]]

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