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Wiki source code of LA66 LoRaWAN Module

Version 87.1 by Edwin Chen on 2022/07/11 09:10
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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
71
Edwin Chen 6.1 72 = LA66 LoRaWAN Shield =
73
Edwin Chen 71.1 74 == Overview ==
Edwin Chen 6.1 75
Edwin Chen 71.1 76 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.
77
78
79 == Features ==
80
81 * Arduino Shield base on LA66 LoRaWAN module
82 * Support LoRaWAN v1.0.4 protocol
83 * Support peer-to-peer protocol
84 * TCXO crystal to ensure RF performance on low temperature
85 * SMA connector
86 * Available in different frequency LoRaWAN frequency bands.
87 * World-wide unique OTAA keys.
88 * AT Command via UART-TTL interface
89 * Firmware upgradable via UART interface
90 * Ultra-long RF range
91
92 == Specification ==
93
94 * CPU: 32-bit 48 MHz
95 * Flash: 256KB
96 * RAM: 64KB
97 * Input Power Range: 1.8v ~~ 3.7v
98 * Power Consumption: < 4uA.
99 * Frequency Range: 150 MHz ~~ 960 MHz
100 * Maximum Power +22 dBm constant RF output
101 * High sensitivity: -148 dBm
102 * Temperature:
103 ** Storage: -55 ~~ +125℃
104 ** Operating: -40 ~~ +85℃
105 * Humidity:
106 ** Storage: 5 ~~ 95% (Non-Condensing)
107 ** Operating: 10 ~~ 95% (Non-Condensing)
108 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
109 * LoRa Rx current: <9 mA
110 * I/O Voltage: 3.3v
111
Edwin Chen 11.1 112 == Pin Mapping & LED ==
Edwin Chen 6.1 113
Edwin Chen 11.1 114 == Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
115
116 == Example: Join TTN network and send an uplink message, get downlink message. ==
117
118 == Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
119
Edwin Chen 13.1 120 == Upgrade Firmware of LA66 LoRaWAN Shield ==
Edwin Chen 11.1 121
Edwin Chen 74.1 122 === Items needed for update ===
Edwin Chen 11.1 123
Edwin Chen 74.1 124 1. LA66 LoRaWAN Shield
125 1. Arduino
126 1. USB TO TTL Adapter
Edwin Chen 13.1 127
Edwin Chen 75.1 128 [[image:image-20220602100052-2.png||height="385" width="600"]]
Herong Lu 20.1 129
130
Edwin Chen 74.1 131 === Connection ===
Herong Lu 20.1 132
Edwin Chen 75.1 133 [[image:image-20220602101311-3.png||height="276" width="600"]]
Herong Lu 20.1 134
Edwin Chen 75.1 135 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  <-> (% style="color:blue" %)**USB TTL**(%%)
136 **GND  <-> GND
137 TXD  <-> TXD
138 RXD  <-> RXD**
Herong Lu 20.1 139
Edwin Chen 77.1 140 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
Herong Lu 20.1 141
Edwin Chen 75.1 142 Connect USB TTL Adapter to PC after connecting the wires
Herong Lu 20.1 143
144
Edwin Chen 75.1 145 [[image:image-20220602102240-4.png||height="304" width="600"]]
Herong Lu 20.1 146
147
148 === Upgrade steps ===
149
Edwin Chen 75.1 150 ==== Switch SW1 to put in ISP position ====
Herong Lu 20.1 151
Edwin Chen 75.1 152 [[image:image-20220602102824-5.png||height="306" width="600"]]
Herong Lu 32.1 153
154
Edwin Chen 75.1 155 ==== Press the RST switch once ====
Herong Lu 32.1 156
Edwin Chen 75.1 157 [[image:image-20220602104701-12.png||height="285" width="600"]]
Herong Lu 32.1 158
Edwin Chen 75.1 159
Edwin Chen 76.1 160 ==== Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
Edwin Chen 75.1 161
Edwin Chen 76.1 162 **~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 39.1 163
Herong Lu 32.1 164 [[image:image-20220602103227-6.png]]
165
166 [[image:image-20220602103357-7.png]]
167
168
Edwin Chen 76.1 169 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
170 **2. Select the COM port corresponding to USB TTL**
171
Herong Lu 32.1 172 [[image:image-20220602103844-8.png]]
173
174
Edwin Chen 76.1 175 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
176 **3. Select the bin file to burn**
177
Herong Lu 32.1 178 [[image:image-20220602104144-9.png]]
179
180 [[image:image-20220602104251-10.png]]
181
182 [[image:image-20220602104402-11.png]]
183
184
Edwin Chen 76.1 185 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
186 **4. Click to start the download**
187
Herong Lu 32.1 188 [[image:image-20220602104923-13.png]]
189
190
Edwin Chen 76.1 191 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
192 **5. Check update process**
193
Herong Lu 32.1 194 [[image:image-20220602104948-14.png]]
195
196
Edwin Chen 76.1 197 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
198 **The following picture shows that the burning is successful**
199
Herong Lu 32.1 200 [[image:image-20220602105251-15.png]]
201
Edwin Chen 72.1 202
203
Edwin Chen 6.1 204 = LA66 USB LoRaWAN Adapter =
205
Edwin Chen 73.1 206 == Overview ==
Edwin Chen 7.1 207
Edwin Chen 73.1 208 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 52.1 209
Edwin Chen 73.1 210
211 == Features ==
212
213 * LoRaWAN USB adapter base on LA66 LoRaWAN module
214 * Ultra-long RF range
215 * Support LoRaWAN v1.0.4 protocol
216 * Support peer-to-peer protocol
217 * TCXO crystal to ensure RF performance on low temperature
218 * Spring RF antenna
219 * Available in different frequency LoRaWAN frequency bands.
220 * World-wide unique OTAA keys.
221 * AT Command via UART-TTL interface
222 * Firmware upgradable via UART interface
223
224 == Specification ==
225
226 * CPU: 32-bit 48 MHz
227 * Flash: 256KB
228 * RAM: 64KB
229 * Input Power Range: 5v
230 * Frequency Range: 150 MHz ~~ 960 MHz
231 * Maximum Power +22 dBm constant RF output
232 * High sensitivity: -148 dBm
233 * Temperature:
234 ** Storage: -55 ~~ +125℃
235 ** Operating: -40 ~~ +85℃
236 * Humidity:
237 ** Storage: 5 ~~ 95% (Non-Condensing)
238 ** Operating: 10 ~~ 95% (Non-Condensing)
239 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
240 * LoRa Rx current: <9 mA
241
Edwin Chen 14.1 242 == Pin Mapping & LED ==
Edwin Chen 7.1 243
Edwin Chen 11.1 244 == Example Send & Get Messages via LoRaWAN in PC ==
Edwin Chen 7.1 245
Edwin Chen 78.2 246 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
Herong Lu 58.1 247
Edwin Chen 78.2 248 ~1. Connect the LA66 USB LoRaWAN adapter to PC
Herong Lu 58.1 249
Edwin Chen 78.2 250 [[image:image-20220602171217-1.png||height="538" width="800"]]
251
Herong Lu 58.1 252 Open the serial port tool
253
254 [[image:image-20220602161617-8.png]]
255
Edwin Chen 78.2 256 [[image:image-20220602161718-9.png||height="457" width="800"]]
Herong Lu 58.1 257
258
Edwin Chen 78.2 259 2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.
Herong Lu 58.1 260
Edwin Chen 78.2 261 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
Herong Lu 58.1 262
Edwin Chen 78.2 263 [[image:image-20220602161935-10.png||height="498" width="800"]]
Herong Lu 58.1 264
Edwin Chen 78.2 265
266 3. See Uplink Command
267
268 Command format: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
269
Herong Lu 58.1 270 example: AT+SENDB=01,02,8,05820802581ea0a5
271
Edwin Chen 78.2 272 [[image:image-20220602162157-11.png||height="497" width="800"]]
Herong Lu 58.1 273
274
Edwin Chen 78.2 275 4. Check to see if TTN received the message
Herong Lu 58.1 276
Edwin Chen 78.2 277 [[image:image-20220602162331-12.png||height="420" width="800"]]
278
279
280
Edwin Chen 85.1 281 == Example:Send PC's CPU/RAM usage to TTN via python ==
Edwin Chen 81.1 282
Edwin Chen 82.1 283 (% class="wikigeneratedid" id="HUsepythonasanexampleFF1A" %)
Edwin Chen 87.1 284 **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]]
Edwin Chen 81.1 285
Edwin Chen 82.1 286 (% class="wikigeneratedid" id="HPreconditions:" %)
287 **Preconditions:**
Edwin Chen 81.1 288
289 1.LA66 USB LoRaWAN Adapter works fine
290
291 2.LA66 USB LoRaWAN Adapter  is registered with TTN
292
Edwin Chen 82.1 293 (% class="wikigeneratedid" id="HStepsforusage" %)
294 **Steps for usage**
Edwin Chen 81.1 295
296 1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
297
298 2.Run the python script in PC and see the TTN
299
300 [[image:image-20220602115852-3.png||height="450" width="1187"]]
301
302
303
Edwin Chen 11.1 304 == Example Send & Get Messages via LoRaWAN in RPi ==
305
Edwin Chen 79.1 306 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
Edwin Chen 12.1 307
Edwin Chen 79.1 308 ~1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi
309
Edwin Chen 78.2 310 [[image:image-20220602171233-2.png||height="538" width="800"]]
Herong Lu 43.1 311
Herong Lu 52.1 312
Edwin Chen 79.1 313 2. Install Minicom in RPi.
Herong Lu 52.1 314
Edwin Chen 79.1 315 (% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
Herong Lu 52.1 316
Edwin Chen 79.1 317 (% class="mark" %)apt update
Herong Lu 52.1 318
Edwin Chen 79.1 319 (% class="mark" %)apt install minicom
Herong Lu 52.1 320
321
Edwin Chen 79.1 322 Use minicom to connect to the RPI's terminal
Herong Lu 52.1 323
Edwin Chen 79.1 324 [[image:image-20220602153146-3.png||height="439" width="500"]]
Herong Lu 52.1 325
326
Edwin Chen 79.1 327 3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.
328 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network
Edwin Chen 8.1 329
Edwin Chen 79.1 330 [[image:image-20220602154928-5.png||height="436" width="500"]]
Herong Lu 46.1 331
332
Edwin Chen 79.1 333 4. Send Uplink message
Herong Lu 46.1 334
Edwin Chen 79.1 335 Format: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
Herong Lu 46.1 336
Edwin Chen 79.1 337 example: AT+SENDB=01,02,8,05820802581ea0a5
Herong Lu 46.1 338
Edwin Chen 79.1 339 [[image:image-20220602160339-6.png||height="517" width="600"]]
340
341 Check to see if TTN received the message
342
343 [[image:image-20220602160627-7.png||height="369" width="800"]]
344
345
346
Edwin Chen 11.1 347 == Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
348
Edwin Chen 13.1 349
350 == Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
Herong Lu 63.1 351
Edwin Chen 73.1 352
353
Edwin Chen 86.1 354 = Order Info =
Edwin Chen 73.1 355
Edwin Chen 86.1 356 Part Number:
Edwin Chen 73.1 357
Edwin Chen 86.1 358 **LA66-XXX**, **LA66-LoRaWAN-Shield-XXX** or **LA66-USB-LoRaWAN-Adapter-XXX**
Edwin Chen 73.1 359
Edwin Chen 86.1 360 **XXX**: The default frequency band
361
Edwin Chen 73.1 362 * **AS923**: LoRaWAN AS923 band
363 * **AU915**: LoRaWAN AU915 band
364 * **EU433**: LoRaWAN EU433 band
365 * **EU868**: LoRaWAN EU868 band
366 * **KR920**: LoRaWAN KR920 band
367 * **US915**: LoRaWAN US915 band
368 * **IN865**: LoRaWAN IN865 band
369 * **CN470**: LoRaWAN CN470 band
370 * **PP**: Peer to Peer LoRa Protocol
371
372
Edwin Chen 78.1 373 = Reference =
374
375 * Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
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Edwin Chen 79.1 377