Wiki source code of LA66 LoRaWAN Module

Version 87.9 by Xiaoling on 2022/07/13 10:02
Show last authors
1
2
3 {{toc/}}
4
5
6
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 [[image:image-20220602104701-12.png||height="285" width="600"]]
191
192
193
194 ==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
195
196
197 (% 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/]]**
198
199
200 [[image:image-20220602103227-6.png]]
201
202
203 [[image:image-20220602103357-7.png]]
204
205
206
207 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
208 (% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
209
210
211 [[image:image-20220602103844-8.png]]
212
213
214
215 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
216 (% style="color:blue" %)**3. Select the bin file to burn**
217
218
219 [[image:image-20220602104144-9.png]]
220
221
222 [[image:image-20220602104251-10.png]]
223
224
225 [[image:image-20220602104402-11.png]]
226
227
228
229 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
230 (% style="color:blue" %)**4. Click to start the download**
231
232 [[image:image-20220602104923-13.png]]
233
234
235 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
236 (% style="color:blue" %)**5. Check update process**
237
238
239 [[image:image-20220602104948-14.png]]
240
241
242
243 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
244 (% style="color:blue" %)**The following picture shows that the burning is successful**
245
246 [[image:image-20220602105251-15.png]]
247
248
249
250 = 3.  LA66 USB LoRaWAN Adapter =
251
252
253 == 3.1  Overview ==
254
255 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.
256
257
258 == 3.2  Features ==
259
260 * LoRaWAN USB adapter base on LA66 LoRaWAN module
261 * Ultra-long RF range
262 * Support LoRaWAN v1.0.4 protocol
263 * Support peer-to-peer protocol
264 * TCXO crystal to ensure RF performance on low temperature
265 * Spring RF antenna
266 * Available in different frequency LoRaWAN frequency bands.
267 * World-wide unique OTAA keys.
268 * AT Command via UART-TTL interface
269 * Firmware upgradable via UART interface
270
271 == 3.3  Specification ==
272
273 * CPU: 32-bit 48 MHz
274 * Flash: 256KB
275 * RAM: 64KB
276 * Input Power Range: 5v
277 * Frequency Range: 150 MHz ~~ 960 MHz
278 * Maximum Power +22 dBm constant RF output
279 * High sensitivity: -148 dBm
280 * Temperature:
281 ** Storage: -55 ~~ +125℃
282 ** Operating: -40 ~~ +85℃
283 * Humidity:
284 ** Storage: 5 ~~ 95% (Non-Condensing)
285 ** Operating: 10 ~~ 95% (Non-Condensing)
286 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
287 * LoRa Rx current: <9 mA
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 (% style="color:blue" %)The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network
391
392 [[image:image-20220602154928-5.png||height="436" width="500"]]
393
394
395
396 (% style="color:blue" %)**4. Send Uplink message**
397
398 Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
399
400 example: AT+SENDB=01,02,8,05820802581ea0a5
401
402
403 [[image:image-20220602160339-6.png||height="517" width="600"]]
404
405
406
407 Check to see if TTN received the message
408
409 [[image:image-20220602160627-7.png||height="369" width="800"]]
410
411
412
413 == 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
414
415
416
417 == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
418
419
420
421
422 = 4.  Order Info =
423
424
425 **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
426
427
428 (% style="color:blue" %)**XXX**(%%): The default frequency band
429
430 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
431 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
432 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
433 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
434 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
435 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
436 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
437 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
438 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
439
440
441
442
443 = 5.  Reference =
444
445 * Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
446
447

Applications

Navigation

Copyright ©2010-2024 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0