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Wiki source code of LA66 LoRaWAN Module

Version 73.1 by Edwin Chen on 2022/07/03 00:12
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Edwin Chen 1.1 1 {{box cssClass="floatinginfobox" title="**Contents**"}}
2 {{toc/}}
3 {{/box}}
4
Edwin Chen 6.1 5 = LA66 LoRaWAN Module =
Edwin Chen 1.1 6
Edwin Chen 6.1 7 == What is LA66 LoRaWAN Module ==
8
Edwin Chen 65.1 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.
Edwin Chen 1.1 10
Edwin Chen 65.1 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.
Edwin Chen 1.1 12
Edwin Chen 65.1 13 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
Edwin Chen 1.1 14
Edwin Chen 65.1 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.
Edwin Chen 1.1 16
Edwin Chen 65.1 17 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
Edwin Chen 1.1 18
Edwin Chen 67.1 19
Edwin Chen 65.1 20 == Features ==
Edwin Chen 64.1 21
Edwin Chen 68.1 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.
Edwin Chen 69.1 28 * AT Command via UART-TTL interface
29 * Firmware upgradable via UART interface
30 * Ultra-long RF range
Edwin Chen 64.1 31
Edwin Chen 6.1 32 == Specification ==
Edwin Chen 1.1 33
Edwin Chen 68.1 34 * CPU: 32-bit 48 MHz
35 * Flash: 256KB
36 * RAM: 64KB
Edwin Chen 66.1 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
Edwin Chen 1.1 51
Edwin Chen 66.1 52 == AT Command ==
Edwin Chen 1.1 53
Edwin Chen 66.1 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.
Edwin Chen 1.1 55
Edwin Chen 3.1 56
Edwin Chen 66.1 57 == Dimension ==
Edwin Chen 3.1 58
Edwin Chen 66.1 59 [[image:image-20220517072526-1.png]]
Edwin Chen 3.1 60
61
Edwin Chen 6.1 62 == Pin Mapping ==
Edwin Chen 5.1 63
Xiaoling 10.2 64 [[image:image-20220523101537-1.png]]
Edwin Chen 5.1 65
Edwin Chen 6.1 66 == Land Pattern ==
Edwin Chen 5.1 67
68 [[image:image-20220517072821-2.png]]
69
70
Edwin Chen 72.1 71 == Order Info ==
Edwin Chen 5.1 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
Edwin Chen 68.1 85 * **PP**: Peer to Peer LoRa Protocol
Edwin Chen 6.1 86
87 = LA66 LoRaWAN Shield =
88
Edwin Chen 71.1 89 == Overview ==
Edwin Chen 6.1 90
Edwin Chen 71.1 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
Edwin Chen 11.1 127 == Pin Mapping & LED ==
Edwin Chen 6.1 128
Edwin Chen 11.1 129 == 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
Edwin Chen 13.1 135 == Upgrade Firmware of LA66 LoRaWAN Shield ==
Edwin Chen 11.1 136
Herong Lu 20.1 137 === what needs to be used ===
Edwin Chen 11.1 138
Herong Lu 20.1 139 1.LA66 LoRaWAN Shield that needs to be upgraded
Edwin Chen 13.1 140
Herong Lu 20.1 141 2.Arduino
142
143 3.USB TO TTL
144
145 [[image:image-20220602100052-2.png]]
146
147 === Wiring Schematic ===
148
149 [[image:image-20220602101311-3.png]]
150
151 LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
152
153 GND  >>>>>>>>>>>>GND
154
155 TXD  >>>>>>>>>>>>TXD
156
157 RXD  >>>>>>>>>>>>RXD
158
159 JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
160
161 Connect to the PC after connecting the wires
162
163 [[image:image-20220602102240-4.png]]
164
165 === Upgrade steps ===
166
Herong Lu 32.1 167 ==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
Herong Lu 20.1 168
Herong Lu 32.1 169 [[image:image-20220602102824-5.png]]
170
171 ==== Press the RST switch on the LA66 LoRaWAN Shield once ====
172
173 [[image:image-20220602104701-12.png]]
174
175 ==== Open the upgrade application software ====
176
Herong Lu 39.1 177 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
Herong Lu 32.1 179 [[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
Edwin Chen 72.1 207
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
231
Edwin Chen 6.1 232 = LA66 USB LoRaWAN Adapter =
233
Edwin Chen 73.1 234 == Overview ==
Edwin Chen 7.1 235
Edwin Chen 73.1 236 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.
Herong Lu 52.1 237
Edwin Chen 73.1 238
239 == Features ==
240
241 * LoRaWAN USB adapter base on LA66 LoRaWAN module
242 * Ultra-long RF range
243 * Support LoRaWAN v1.0.4 protocol
244 * Support peer-to-peer protocol
245 * TCXO crystal to ensure RF performance on low temperature
246 * Spring RF antenna
247 * Available in different frequency LoRaWAN frequency bands.
248 * World-wide unique OTAA keys.
249 * AT Command via UART-TTL interface
250 * Firmware upgradable via UART interface
251
252
253
254 == Specification ==
255
256 * CPU: 32-bit 48 MHz
257 * Flash: 256KB
258 * RAM: 64KB
259 * Input Power Range: 5v
260 * Frequency Range: 150 MHz ~~ 960 MHz
261 * Maximum Power +22 dBm constant RF output
262 * High sensitivity: -148 dBm
263 * Temperature:
264 ** Storage: -55 ~~ +125℃
265 ** Operating: -40 ~~ +85℃
266 * Humidity:
267 ** Storage: 5 ~~ 95% (Non-Condensing)
268 ** Operating: 10 ~~ 95% (Non-Condensing)
269 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
270 * LoRa Rx current: <9 mA
271
272
273
Edwin Chen 14.1 274 == Pin Mapping & LED ==
Edwin Chen 7.1 275
Edwin Chen 11.1 276 == Example Send & Get Messages via LoRaWAN in PC ==
Edwin Chen 7.1 277
Herong Lu 58.1 278 Connect the LA66 LoRa Shield to the PC
279
Herong Lu 61.1 280 [[image:image-20220602171217-1.png||height="615" width="915"]]
Herong Lu 58.1 281
282 Open the serial port tool
283
284 [[image:image-20220602161617-8.png]]
285
286 [[image:image-20220602161718-9.png||height="529" width="927"]]
287
288 Press the reset switch RST on the LA66 LoRa Shield.
289
290 The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
291
292 [[image:image-20220602161935-10.png]]
293
294 send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
295
296 example: AT+SENDB=01,02,8,05820802581ea0a5
297
298 [[image:image-20220602162157-11.png]]
299
300 Check to see if TTN received the message
301
302 [[image:image-20220602162331-12.png||height="547" width="1044"]]
303
Edwin Chen 11.1 304 == Example Send & Get Messages via LoRaWAN in RPi ==
305
Herong Lu 52.1 306 Connect the LA66 LoRa Shield to the RPI
Edwin Chen 12.1 307
Herong Lu 61.1 308 [[image:image-20220602171233-2.png||height="592" width="881"]]
Herong Lu 43.1 309
Herong Lu 52.1 310 Log in to the RPI's terminal and connect to the serial port
311
312 [[image:image-20220602153146-3.png]]
313
314 Press the reset switch RST on the LA66 LoRa Shield.
315 The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
316
317 [[image:image-20220602154928-5.png]]
318
319 send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
320
321 example: AT+SENDB=01,02,8,05820802581ea0a5
322
323 [[image:image-20220602160339-6.png]]
324
325 Check to see if TTN received the message
326
327 [[image:image-20220602160627-7.png||height="468" width="1013"]]
328
Edwin Chen 8.1 329 === Install Minicom ===
330
Herong Lu 46.1 331 Enter the following command in the RPI terminal
332
333 apt update
334
335 [[image:image-20220602143155-1.png]]
336
337 apt install minicom
338
339 [[image:image-20220602143744-2.png]]
340
Herong Lu 38.1 341 === Send PC's CPU/RAM usage to TTN via script. ===
Edwin Chen 11.1 342
Herong Lu 38.1 343 ==== Take python as an example： ====
Edwin Chen 11.1 344
Herong Lu 38.1 345 ===== Preconditions: =====
346
Herong Lu 62.1 347 1.LA66 USB LoRaWAN Adapter works fine
Herong Lu 38.1 348
Herong Lu 62.1 349 2.LA66 USB LoRaWAN Adapter  is registered with TTN
Herong Lu 38.1 350
351 ===== Steps for usage =====
352
Herong Lu 62.1 353 1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
Herong Lu 38.1 354
355 2.Run the script and see the TTN
356
357 [[image:image-20220602115852-3.png]]
358
359
360
Edwin Chen 11.1 361 == Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
362
Edwin Chen 13.1 363
364 == Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
Herong Lu 63.1 365
Edwin Chen 73.1 366
367
368 == Order Info ==
369
370 Part Number: **LA66-USB-LoRaWAN-Adapter-XXX**
371
372 **XX**: The default frequency band
373
374 * **AS923**: LoRaWAN AS923 band
375 * **AU915**: LoRaWAN AU915 band
376 * **EU433**: LoRaWAN EU433 band
377 * **EU868**: LoRaWAN EU868 band
378 * **KR920**: LoRaWAN KR920 band
379 * **US915**: LoRaWAN US915 band
380 * **IN865**: LoRaWAN IN865 band
381 * **CN470**: LoRaWAN CN470 band
382 * **PP**: Peer to Peer LoRa Protocol
383
384 == Package Info ==
385
386 * LA66 USB LoRaWAN Adapter x 1
387
Herong Lu 63.1 388