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Wiki source code of LA66 LoRaWAN Module

Version 75.1 by Edwin Chen on 2022/07/03 00:21
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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
Edwin Chen 74.1 137 === Items needed for update ===
Edwin Chen 11.1 138
Edwin Chen 74.1 139 1. LA66 LoRaWAN Shield
140 1. Arduino
141 1. USB TO TTL Adapter
Edwin Chen 13.1 142
Edwin Chen 75.1 143 [[image:image-20220602100052-2.png||height="385" width="600"]]
Herong Lu 20.1 144
145
Edwin Chen 74.1 146 === Connection ===
Herong Lu 20.1 147
Edwin Chen 75.1 148 [[image:image-20220602101311-3.png||height="276" width="600"]]
Herong Lu 20.1 149
Edwin Chen 75.1 150 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  <-> (% style="color:blue" %)**USB TTL**(%%)
151 **GND  <-> GND
152 TXD  <-> TXD
153 RXD  <-> RXD**
Herong Lu 20.1 154
Edwin Chen 75.1 155 Put a jumper cap on JP6 of LA66 LoRaWAN Shield.
Herong Lu 20.1 156
Edwin Chen 75.1 157 Connect USB TTL Adapter to PC after connecting the wires
Herong Lu 20.1 158
159
Edwin Chen 75.1 160 [[image:image-20220602102240-4.png||height="304" width="600"]]
Herong Lu 20.1 161
162
163 === Upgrade steps ===
164
Edwin Chen 75.1 165 ==== Switch SW1 to put in ISP position ====
Herong Lu 20.1 166
Edwin Chen 75.1 167 [[image:image-20220602102824-5.png||height="306" width="600"]]
Herong Lu 32.1 168
169
Edwin Chen 75.1 170 ==== Press the RST switch once ====
Herong Lu 32.1 171
Edwin Chen 75.1 172 [[image:image-20220602104701-12.png||height="285" width="600"]]
Herong Lu 32.1 173
Edwin Chen 75.1 174
175 ==== Open the Upgrade tool (Tremo Programmer) in PC ====
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
Edwin Chen 6.1 230 = LA66 USB LoRaWAN Adapter =
231
Edwin Chen 73.1 232 == Overview ==
Edwin Chen 7.1 233
Edwin Chen 73.1 234 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.
Herong Lu 52.1 235
Edwin Chen 73.1 236
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
Edwin Chen 14.1 268 == Pin Mapping & LED ==
Edwin Chen 7.1 269
Edwin Chen 11.1 270 == Example Send & Get Messages via LoRaWAN in PC ==
Edwin Chen 7.1 271
Herong Lu 58.1 272 Connect the LA66 LoRa Shield to the PC
273
Herong Lu 61.1 274 [[image:image-20220602171217-1.png||height="615" width="915"]]
Herong Lu 58.1 275
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
Edwin Chen 11.1 298 == Example Send & Get Messages via LoRaWAN in RPi ==
299
Herong Lu 52.1 300 Connect the LA66 LoRa Shield to the RPI
Edwin Chen 12.1 301
Herong Lu 61.1 302 [[image:image-20220602171233-2.png||height="592" width="881"]]
Herong Lu 43.1 303
Herong Lu 52.1 304 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
Edwin Chen 8.1 323 === Install Minicom ===
324
Herong Lu 46.1 325 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
Herong Lu 38.1 335 === Send PC's CPU/RAM usage to TTN via script. ===
Edwin Chen 11.1 336
Herong Lu 38.1 337 ==== Take python as an example： ====
Edwin Chen 11.1 338
Herong Lu 38.1 339 ===== Preconditions: =====
340
Herong Lu 62.1 341 1.LA66 USB LoRaWAN Adapter works fine
Herong Lu 38.1 342
Herong Lu 62.1 343 2.LA66 USB LoRaWAN Adapter  is registered with TTN
Herong Lu 38.1 344
345 ===== Steps for usage =====
346
Herong Lu 62.1 347 1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
Herong Lu 38.1 348
349 2.Run the script and see the TTN
350
351 [[image:image-20220602115852-3.png]]
352
353
354
Edwin Chen 11.1 355 == Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
356
Edwin Chen 13.1 357
358 == Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
Herong Lu 63.1 359
Edwin Chen 73.1 360
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
Herong Lu 63.1 382