Wiki source code of LA66 LoRaWAN Module

Version 75.1 by Edwin Chen on 2022/07/03 00:21
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1 {{box cssClass="floatinginfobox" title="**Contents**"}}
2 {{toc/}}
3 {{/box}}
4
5 = LA66 LoRaWAN Module =
6
7 == What is LA66 LoRaWAN Module ==
8
9 (% 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.
10
11 (% 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.
12
13 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
14
15 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.
16
17 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
18
19
20 == Features ==
21
22 * Support LoRaWAN v1.0.4 protocol
23 * Support peer-to-peer protocol
24 * TCXO crystal to ensure RF performance on low temperature
25 * SMD Antenna pad and i-pex antenna connector
26 * Available in different frequency LoRaWAN frequency bands.
27 * World-wide unique OTAA keys.
28 * AT Command via UART-TTL interface
29 * Firmware upgradable via UART interface
30 * Ultra-long RF range
31
32 == Specification ==
33
34 * CPU: 32-bit 48 MHz
35 * Flash: 256KB
36 * RAM: 64KB
37 * Input Power Range: 1.8v ~~ 3.7v
38 * Power Consumption: < 4uA.
39 * Frequency Range: 150 MHz ~~ 960 MHz
40 * Maximum Power +22 dBm constant RF output
41 * High sensitivity: -148 dBm
42 * Temperature:
43 ** Storage: -55 ~~ +125℃
44 ** Operating: -40 ~~ +85℃
45 * Humidity:
46 ** Storage: 5 ~~ 95% (Non-Condensing)
47 ** Operating: 10 ~~ 95% (Non-Condensing)
48 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
49 * LoRa Rx current: <9 mA
50 * I/O Voltage: 3.3v
51
52 == AT Command ==
53
54 AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
55
56
57 == Dimension ==
58
59 [[image:image-20220517072526-1.png]]
60
61
62 == Pin Mapping ==
63
64 [[image:image-20220523101537-1.png]]
65
66 == Land Pattern ==
67
68 [[image:image-20220517072821-2.png]]
69
70
71 == Order Info ==
72
73 Part Number: **LA66-XXX**
74
75 **XX**: The default frequency band
76
77 * **AS923**: LoRaWAN AS923 band
78 * **AU915**: LoRaWAN AU915 band
79 * **EU433**: LoRaWAN EU433 band
80 * **EU868**: LoRaWAN EU868 band
81 * **KR920**: LoRaWAN KR920 band
82 * **US915**: LoRaWAN US915 band
83 * **IN865**: LoRaWAN IN865 band
84 * **CN470**: LoRaWAN CN470 band
85 * **PP**: Peer to Peer LoRa Protocol
86
87 = LA66 LoRaWAN Shield =
88
89 == Overview ==
90
91 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.
92
93
94 == Features ==
95
96 * Arduino Shield base on LA66 LoRaWAN module
97 * Support LoRaWAN v1.0.4 protocol
98 * Support peer-to-peer protocol
99 * TCXO crystal to ensure RF performance on low temperature
100 * SMA connector
101 * Available in different frequency LoRaWAN frequency bands.
102 * World-wide unique OTAA keys.
103 * AT Command via UART-TTL interface
104 * Firmware upgradable via UART interface
105 * Ultra-long RF range
106
107 == 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 == Pin Mapping & LED ==
128
129 == Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
130
131 == Example: Join TTN network and send an uplink message, get downlink message. ==
132
133 == Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
134
135 == Upgrade Firmware of LA66 LoRaWAN Shield ==
136
137 === Items needed for update ===
138
139 1. LA66 LoRaWAN Shield
140 1. Arduino
141 1. USB TO TTL Adapter
142
143 [[image:image-20220602100052-2.png||height="385" width="600"]]
144
145
146 === Connection ===
147
148 [[image:image-20220602101311-3.png||height="276" width="600"]]
149
150 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  <-> (% style="color:blue" %)**USB TTL**(%%)
151 **GND  <-> GND
152 TXD  <-> TXD
153 RXD  <-> RXD**
154
155 Put a jumper cap on JP6 of LA66 LoRaWAN Shield.
156
157 Connect USB TTL Adapter to PC after connecting the wires
158
159
160 [[image:image-20220602102240-4.png||height="304" width="600"]]
161
162
163 === Upgrade steps ===
164
165 ==== Switch SW1 to put in ISP position ====
166
167 [[image:image-20220602102824-5.png||height="306" width="600"]]
168
169
170 ==== Press the RST switch once ====
171
172 [[image:image-20220602104701-12.png||height="285" width="600"]]
173
174
175 ==== Open the Upgrade tool (Tremo Programmer) in PC ====
176
177 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/]]
178
179 [[image:image-20220602103227-6.png]]
180
181 [[image:image-20220602103357-7.png]]
182
183 ===== Select the COM port corresponding to USB TTL =====
184
185 [[image:image-20220602103844-8.png]]
186
187 ===== Select the bin file to burn =====
188
189 [[image:image-20220602104144-9.png]]
190
191 [[image:image-20220602104251-10.png]]
192
193 [[image:image-20220602104402-11.png]]
194
195 ===== Click to start the download =====
196
197 [[image:image-20220602104923-13.png]]
198
199 ===== The following figure appears to prove that the burning is in progress =====
200
201 [[image:image-20220602104948-14.png]]
202
203 ===== The following picture appears to prove that the burning is successful =====
204
205 [[image:image-20220602105251-15.png]]
206
207
208 == Order Info ==
209
210 Part Number: **LA66-LoRaWAN-Shield-XXX**
211
212 **XX**: The default frequency band
213
214 * **AS923**: LoRaWAN AS923 band
215 * **AU915**: LoRaWAN AU915 band
216 * **EU433**: LoRaWAN EU433 band
217 * **EU868**: LoRaWAN EU868 band
218 * **KR920**: LoRaWAN KR920 band
219 * **US915**: LoRaWAN US915 band
220 * **IN865**: LoRaWAN IN865 band
221 * **CN470**: LoRaWAN CN470 band
222 * **PP**: Peer to Peer LoRa Protocol
223
224 == Package Info ==
225
226 * LA66 LoRaWAN Shield x 1
227 * RF Antenna x 1
228
229
230 = LA66 USB LoRaWAN Adapter =
231
232 == Overview ==
233
234 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.
235
236
237 == Features ==
238
239 * LoRaWAN USB adapter base on LA66 LoRaWAN module
240 * Ultra-long RF range
241 * Support LoRaWAN v1.0.4 protocol
242 * Support peer-to-peer protocol
243 * TCXO crystal to ensure RF performance on low temperature
244 * Spring RF antenna
245 * Available in different frequency LoRaWAN frequency bands.
246 * World-wide unique OTAA keys.
247 * AT Command via UART-TTL interface
248 * Firmware upgradable via UART interface
249
250 == Specification ==
251
252 * CPU: 32-bit 48 MHz
253 * Flash: 256KB
254 * RAM: 64KB
255 * Input Power Range: 5v
256 * Frequency Range: 150 MHz ~~ 960 MHz
257 * Maximum Power +22 dBm constant RF output
258 * High sensitivity: -148 dBm
259 * Temperature:
260 ** Storage: -55 ~~ +125℃
261 ** Operating: -40 ~~ +85℃
262 * Humidity:
263 ** Storage: 5 ~~ 95% (Non-Condensing)
264 ** Operating: 10 ~~ 95% (Non-Condensing)
265 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
266 * LoRa Rx current: <9 mA
267
268 == Pin Mapping & LED ==
269
270 == Example Send & Get Messages via LoRaWAN in PC ==
271
272 Connect the LA66 LoRa Shield to the PC
273
274 [[image:image-20220602171217-1.png||height="615" width="915"]]
275
276 Open the serial port tool
277
278 [[image:image-20220602161617-8.png]]
279
280 [[image:image-20220602161718-9.png||height="529" width="927"]]
281
282 Press the reset switch RST on the LA66 LoRa Shield.
283
284 The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
285
286 [[image:image-20220602161935-10.png]]
287
288 send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
289
290 example: AT+SENDB=01,02,8,05820802581ea0a5
291
292 [[image:image-20220602162157-11.png]]
293
294 Check to see if TTN received the message
295
296 [[image:image-20220602162331-12.png||height="547" width="1044"]]
297
298 == Example Send & Get Messages via LoRaWAN in RPi ==
299
300 Connect the LA66 LoRa Shield to the RPI
301
302 [[image:image-20220602171233-2.png||height="592" width="881"]]
303
304 Log in to the RPI's terminal and connect to the serial port
305
306 [[image:image-20220602153146-3.png]]
307
308 Press the reset switch RST on the LA66 LoRa Shield.
309 The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
310
311 [[image:image-20220602154928-5.png]]
312
313 send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
314
315 example: AT+SENDB=01,02,8,05820802581ea0a5
316
317 [[image:image-20220602160339-6.png]]
318
319 Check to see if TTN received the message
320
321 [[image:image-20220602160627-7.png||height="468" width="1013"]]
322
323 === Install Minicom ===
324
325 Enter the following command in the RPI terminal
326
327 apt update
328
329 [[image:image-20220602143155-1.png]]
330
331 apt install minicom
332
333 [[image:image-20220602143744-2.png]]
334
335 === Send PC's CPU/RAM usage to TTN via script. ===
336
337 ==== Take python as an example： ====
338
339 ===== Preconditions: =====
340
341 1.LA66 USB LoRaWAN Adapter works fine
342
343 2.LA66 USB LoRaWAN Adapter  is registered with TTN
344
345 ===== Steps for usage =====
346
347 1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
348
349 2.Run the script and see the TTN
350
351 [[image:image-20220602115852-3.png]]
352
353
354
355 == Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
356
357
358 == Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
359
360
361
362 == Order Info ==
363
364 Part Number: **LA66-USB-LoRaWAN-Adapter-XXX**
365
366 **XX**: The default frequency band
367
368 * **AS923**: LoRaWAN AS923 band
369 * **AU915**: LoRaWAN AU915 band
370 * **EU433**: LoRaWAN EU433 band
371 * **EU868**: LoRaWAN EU868 band
372 * **KR920**: LoRaWAN KR920 band
373 * **US915**: LoRaWAN US915 band
374 * **IN865**: LoRaWAN IN865 band
375 * **CN470**: LoRaWAN CN470 band
376 * **PP**: Peer to Peer LoRa Protocol
377
378 == Package Info ==
379
380 * LA66 USB LoRaWAN Adapter x 1
381
382

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