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Wiki source code of LA66 LoRaWAN Module

Version 79.1 by Edwin Chen on 2022/07/10 22:00
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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 77.1 155 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
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
Edwin Chen 76.1 175 ==== Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
Edwin Chen 75.1 176
Edwin Chen 76.1 177 **~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/]]**
Herong Lu 39.1 178
Herong Lu 32.1 179 [[image:image-20220602103227-6.png]]
180
181 [[image:image-20220602103357-7.png]]
182
183
Edwin Chen 76.1 184 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
185 **2. Select the COM port corresponding to USB TTL**
186
Herong Lu 32.1 187 [[image:image-20220602103844-8.png]]
188
189
Edwin Chen 76.1 190 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
191 **3. Select the bin file to burn**
192
Herong Lu 32.1 193 [[image:image-20220602104144-9.png]]
194
195 [[image:image-20220602104251-10.png]]
196
197 [[image:image-20220602104402-11.png]]
198
199
Edwin Chen 76.1 200 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
201 **4. Click to start the download**
202
Herong Lu 32.1 203 [[image:image-20220602104923-13.png]]
204
205
Edwin Chen 76.1 206 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
207 **5. Check update process**
208
Herong Lu 32.1 209 [[image:image-20220602104948-14.png]]
210
211
Edwin Chen 76.1 212 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
213 **The following picture shows that the burning is successful**
214
Herong Lu 32.1 215 [[image:image-20220602105251-15.png]]
216
Edwin Chen 72.1 217
218 == Order Info ==
219
220 Part Number: **LA66-LoRaWAN-Shield-XXX**
221
222 **XX**: The default frequency band
223
224 * **AS923**: LoRaWAN AS923 band
225 * **AU915**: LoRaWAN AU915 band
226 * **EU433**: LoRaWAN EU433 band
227 * **EU868**: LoRaWAN EU868 band
228 * **KR920**: LoRaWAN KR920 band
229 * **US915**: LoRaWAN US915 band
230 * **IN865**: LoRaWAN IN865 band
231 * **CN470**: LoRaWAN CN470 band
232 * **PP**: Peer to Peer LoRa Protocol
233
234 == Package Info ==
235
236 * LA66 LoRaWAN Shield x 1
237 * RF Antenna x 1
238
Edwin Chen 6.1 239 = LA66 USB LoRaWAN Adapter =
240
Edwin Chen 73.1 241 == Overview ==
Edwin Chen 7.1 242
Edwin Chen 73.1 243 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 52.1 244
Edwin Chen 73.1 245
246 == Features ==
247
248 * LoRaWAN USB adapter base on LA66 LoRaWAN module
249 * Ultra-long RF range
250 * Support LoRaWAN v1.0.4 protocol
251 * Support peer-to-peer protocol
252 * TCXO crystal to ensure RF performance on low temperature
253 * Spring RF antenna
254 * Available in different frequency LoRaWAN frequency bands.
255 * World-wide unique OTAA keys.
256 * AT Command via UART-TTL interface
257 * Firmware upgradable via UART interface
258
259 == Specification ==
260
261 * CPU: 32-bit 48 MHz
262 * Flash: 256KB
263 * RAM: 64KB
264 * Input Power Range: 5v
265 * Frequency Range: 150 MHz ~~ 960 MHz
266 * Maximum Power +22 dBm constant RF output
267 * High sensitivity: -148 dBm
268 * Temperature:
269 ** Storage: -55 ~~ +125℃
270 ** Operating: -40 ~~ +85℃
271 * Humidity:
272 ** Storage: 5 ~~ 95% (Non-Condensing)
273 ** Operating: 10 ~~ 95% (Non-Condensing)
274 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
275 * LoRa Rx current: <9 mA
276
Edwin Chen 14.1 277 == Pin Mapping & LED ==
Edwin Chen 7.1 278
Edwin Chen 11.1 279 == Example Send & Get Messages via LoRaWAN in PC ==
Edwin Chen 7.1 280
Edwin Chen 78.2 281 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
Herong Lu 58.1 282
Edwin Chen 78.2 283 ~1. Connect the LA66 USB LoRaWAN adapter to PC
Herong Lu 58.1 284
Edwin Chen 78.2 285 [[image:image-20220602171217-1.png||height="538" width="800"]]
286
Herong Lu 58.1 287 Open the serial port tool
288
289 [[image:image-20220602161617-8.png]]
290
Edwin Chen 78.2 291 [[image:image-20220602161718-9.png||height="457" width="800"]]
Herong Lu 58.1 292
293
Edwin Chen 78.2 294 2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.
Herong Lu 58.1 295
Edwin Chen 78.2 296 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
Herong Lu 58.1 297
Edwin Chen 78.2 298 [[image:image-20220602161935-10.png||height="498" width="800"]]
Herong Lu 58.1 299
Edwin Chen 78.2 300
301 3. See Uplink Command
302
303 Command format: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
304
Herong Lu 58.1 305 example: AT+SENDB=01,02,8,05820802581ea0a5
306
Edwin Chen 78.2 307 [[image:image-20220602162157-11.png||height="497" width="800"]]
Herong Lu 58.1 308
309
Edwin Chen 78.2 310 4. Check to see if TTN received the message
Herong Lu 58.1 311
Edwin Chen 78.2 312 [[image:image-20220602162331-12.png||height="420" width="800"]]
313
314
315
Edwin Chen 11.1 316 == Example Send & Get Messages via LoRaWAN in RPi ==
317
Edwin Chen 79.1 318 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
Edwin Chen 12.1 319
Edwin Chen 79.1 320 ~1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi
321
Edwin Chen 78.2 322 [[image:image-20220602171233-2.png||height="538" width="800"]]
Herong Lu 43.1 323
Herong Lu 52.1 324
Edwin Chen 79.1 325 2. Install Minicom in RPi.
Herong Lu 52.1 326
Edwin Chen 79.1 327 (% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
Herong Lu 52.1 328
Edwin Chen 79.1 329 (% class="mark" %)apt update
Herong Lu 52.1 330
Edwin Chen 79.1 331 (% class="mark" %)apt install minicom
Herong Lu 52.1 332
333
Edwin Chen 79.1 334 Use minicom to connect to the RPI's terminal
Herong Lu 52.1 335
Edwin Chen 79.1 336 [[image:image-20220602153146-3.png||height="439" width="500"]]
Herong Lu 52.1 337
338
Edwin Chen 79.1 339 3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.
340 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network
Edwin Chen 8.1 341
Edwin Chen 79.1 342 [[image:image-20220602154928-5.png||height="436" width="500"]]
Herong Lu 46.1 343
344
Edwin Chen 79.1 345 4. Send Uplink message
Herong Lu 46.1 346
Edwin Chen 79.1 347 Format: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
Herong Lu 46.1 348
Edwin Chen 79.1 349 example: AT+SENDB=01,02,8,05820802581ea0a5
Herong Lu 46.1 350
Edwin Chen 79.1 351 [[image:image-20220602160339-6.png||height="517" width="600"]]
352
353 Check to see if TTN received the message
354
355 [[image:image-20220602160627-7.png||height="369" width="800"]]
356
357
358
Herong Lu 38.1 359 === Send PC's CPU/RAM usage to TTN via script. ===
Edwin Chen 11.1 360
Herong Lu 38.1 361 ==== Take python as an example： ====
Edwin Chen 11.1 362
Herong Lu 38.1 363 ===== Preconditions: =====
364
Herong Lu 62.1 365 1.LA66 USB LoRaWAN Adapter works fine
Herong Lu 38.1 366
Herong Lu 62.1 367 2.LA66 USB LoRaWAN Adapter  is registered with TTN
Herong Lu 38.1 368
369 ===== Steps for usage =====
370
Herong Lu 62.1 371 1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
Herong Lu 38.1 372
373 2.Run the script and see the TTN
374
375 [[image:image-20220602115852-3.png]]
376
377
378
Edwin Chen 11.1 379 == Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
380
Edwin Chen 13.1 381
382 == Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
Herong Lu 63.1 383
Edwin Chen 73.1 384
385
386 == Order Info ==
387
388 Part Number: **LA66-USB-LoRaWAN-Adapter-XXX**
389
390 **XX**: The default frequency band
391
392 * **AS923**: LoRaWAN AS923 band
393 * **AU915**: LoRaWAN AU915 band
394 * **EU433**: LoRaWAN EU433 band
395 * **EU868**: LoRaWAN EU868 band
396 * **KR920**: LoRaWAN KR920 band
397 * **US915**: LoRaWAN US915 band
398 * **IN865**: LoRaWAN IN865 band
399 * **CN470**: LoRaWAN CN470 band
400 * **PP**: Peer to Peer LoRa Protocol
401
402 == Package Info ==
403
404 * LA66 USB LoRaWAN Adapter x 1
405
Edwin Chen 78.1 406 = Reference =
407
408 * Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
409
Edwin Chen 79.1 410