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1
2
3 **Table of Contents:**
4
5 {{toc/}}
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7
8
9
10 = 1.  LA66 LoRaWAN Shield =
11
12 == 1.1  Overview ==
13
14
15 (((
16 [[image:image-20220715000826-2.png||height="145" width="220"]]
17 )))
18
19 (((
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21 )))
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23 (((
24 (% style="color:blue" %)**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.
25 )))
26
27 (((
28 (((
29 (% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 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.
30 )))
31 )))
32
33 (((
34 (((
35 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
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37 )))
38
39 (((
40 (((
41 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.
42 )))
43 )))
44
45 (((
46 (((
47 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
48 )))
49 )))
50
51
52 == 1.2  Features ==
53
54
55 * Arduino Shield base on LA66 LoRaWAN module
56 * Support LoRaWAN v1.0.3 protocol
57 * Support peer-to-peer protocol
58 * TCXO crystal to ensure RF performance on low temperature
59 * SMA connector
60 * Available in different frequency LoRaWAN frequency bands.
61 * World-wide unique OTAA keys.
62 * AT Command via UART-TTL interface
63 * Firmware upgradable via UART interface
64 * Ultra-long RF range
65
66
67 == 1.3  Specification ==
68
69
70 * CPU: 32-bit 48 MHz
71 * Flash: 256KB
72 * RAM: 64KB
73 * Input Power Range: 1.8v ~~ 3.7v
74 * Power Consumption: < 4uA.
75 * Frequency Range: 150 MHz ~~ 960 MHz
76 * Maximum Power +22 dBm constant RF output
77 * High sensitivity: -148 dBm
78 * Temperature:
79 ** Storage: -55 ~~ +125℃
80 ** Operating: -40 ~~ +85℃
81 * Humidity:
82 ** Storage: 5 ~~ 95% (Non-Condensing)
83 ** Operating: 10 ~~ 95% (Non-Condensing)
84 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
85 * LoRa Rx current: <9 mA
86 * I/O Voltage: 3.3v
87
88
89 == 1.4  Pin Mapping & LED ==
90
91
92 [[image:image-20220817085048-1.png||height="533" width="734"]]
93
94
95
96 ~1. The LED lights up red when there is an upstream data packet
97
98 2. When the network is successfully connected, the green light will be on for 5 seconds
99
100 3. Purple light on when receiving downlink data packets
101
102
103 [[image:image-20220820112305-1.png||height="515" width="749"]]
104
105
106 == 1.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
107
108
109 (% style="color:blue" %)**Show connection diagram:**
110
111
112 [[image:image-20220723170210-2.png||height="908" width="681"]]
113
114
115
116 (% style="color:blue" %)**1.  open Arduino IDE**
117
118
119 [[image:image-20220723170545-4.png]]
120
121
122
123 (% style="color:blue" %)**2.  Open project**
124
125
126 LA66-LoRaWAN-shield-AT-command-via-Arduino-UNO source code link: [[https:~~/~~/www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0 >>https://www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0]]
127
128 [[image:image-20220726135239-1.png]]
129
130
131
132 (% style="color:blue" %)**3.  Click the button marked 1 in the figure to compile, and after the compilation is complete, click the button marked 2 in the figure to upload**
133
134
135 [[image:image-20220726135356-2.png]]
136
137
138
139 (% style="color:blue" %)**4.  After the upload is successful, open the serial port monitoring and send the AT command**
140
141
142 [[image:image-20220723172235-7.png||height="480" width="1027"]]
143
144
145 == 1.6  Example: Join TTN network and send an uplink message, get downlink message. ==
146
147
148 (% style="color:blue" %)**1.  Open project**
149
150
151 Join-TTN-network source code link: [[https:~~/~~/www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0 >>https://www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0]]
152
153
154 [[image:image-20220723172502-8.png]]
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156
157
158 (% style="color:blue" %)**2.  Same steps as 1.5,after opening the serial port monitoring, it will automatically connect to the network and send packets**
159
160
161 [[image:image-20220723172938-9.png||height="652" width="1050"]]
162
163
164 == 1.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
165
166
167 (% style="color:blue" %)**1.  Open project**
168
169
170 Log-Temperature-Sensor-and-send-data-to-TTN source code link: [[https:~~/~~/www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0>>https://www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0]]
171
172
173 [[image:image-20220723173341-10.png||height="581" width="1014"]]
174
175
176
177 (% style="color:blue" %)**2.  Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets**
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179
180 [[image:image-20220723173950-11.png||height="665" width="1012"]]
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183
184
185
186 (% style="color:blue" %)**3.  Integration into Node-red via TTNV3**
187
188
189 For the usage of Node-RED, please refer to: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Node-RED/>>http://wiki.dragino.com/xwiki/bin/view/Main/Node-RED/]]
190
191
192 [[image:image-20220723175700-12.png||height="602" width="995"]]
193
194
195 == 1.8  Example: How to join helium ==
196
197
198 (% style="color:blue" %)**1.  Create a new device.**
199
200
201 [[image:image-20220907165500-1.png||height="464" width="940"]]
202
203
204
205 (% style="color:blue" %)**2.  Save the device after filling in the necessary information.**
206
207
208 [[image:image-20220907165837-2.png||height="375" width="809"]]
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212 (% style="color:blue" %)**3.  Use AT commands.**
213
214
215 [[image:image-20220602100052-2.png||height="385" width="600"]]
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219 (% style="color:#0000ff" %)**4.  Use command AT+CFG to get device configuration**
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221
222 [[image:image-20220907170308-3.png||height="556" width="617"]]
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224
225
226 (% style="color:blue" %)**5.  Network successfully.**
227
228
229 [[image:image-20220907170436-4.png]]
230
231
232
233 (% style="color:blue" %)**6.  Send uplink using command**
234
235
236 [[image:image-20220912084334-1.png]]
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238
239 [[image:image-20220912084412-3.png]]
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241
242
243 [[image:image-20220907170744-6.png||height="242" width="798"]]
244
245
246 == 1.9  Upgrade Firmware of LA66 LoRaWAN Shield ==
247
248 === 1.9.1  Items needed for update ===
249
250
251 1. LA66 LoRaWAN Shield
252 1. Arduino
253 1. USB TO TTL Adapter
254
255 [[image:image-20220602100052-2.png||height="385" width="600"]]
256
257
258 === 1.9.2  Connection ===
259
260
261 [[image:image-20220602101311-3.png||height="276" width="600"]]
262
263
264 (((
265 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
266 )))
267
268 (((
269 (% style="background-color:yellow" %)**GND  <-> GND
270 TXD  <->  TXD
271 RXD  <->  RXD**
272 )))
273
274
275 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
276
277 Connect USB TTL Adapter to PC after connecting the wires
278
279
280 [[image:image-20220602102240-4.png||height="304" width="600"]]
281
282
283 === 1.9.3  Upgrade steps ===
284
285
286 ==== (% style="color:blue" %)**1.  Switch SW1 to put in ISP position**(%%) ====
287
288
289 [[image:image-20220602102824-5.png||height="306" width="600"]]
290
291
292
293 ==== (% style="color:blue" %)**2.  Press the RST switch once**(%%) ====
294
295
296 [[image:image-20220817085447-1.png]]
297
298
299
300 ==== (% style="color:blue" %)**3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade**(%%) ====
301
302
303 (((
304 (% style="color:blue" %)**1.  Software download link:  **(%%)**[[https:~~/~~/www.dropbox.com/sh/j0qyc7a9ejit7jk/AACtx2tK4gEv6YFXMIVUM4dLa?dl=0>>https://www.dropbox.com/sh/j0qyc7a9ejit7jk/AACtx2tK4gEv6YFXMIVUM4dLa?dl=0]]**
305 )))
306
307
308 [[image:image-20220602103227-6.png]]
309
310
311 [[image:image-20220602103357-7.png]]
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313
314
315 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
316 (% style="color:blue" %)**2.  Select the COM port corresponding to USB TTL**
317
318
319 [[image:image-20220602103844-8.png]]
320
321
322
323 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
324 (% style="color:blue" %)**3.  Select the bin file to burn**
325
326
327 [[image:image-20220602104144-9.png]]
328
329
330 [[image:image-20220602104251-10.png]]
331
332
333 [[image:image-20220602104402-11.png]]
334
335
336
337 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
338 (% style="color:blue" %)**4.  Click to start the download**
339
340
341 [[image:image-20220602104923-13.png]]
342
343
344
345 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
346 (% style="color:blue" %)**5.  Check update process**
347
348
349 [[image:image-20220602104948-14.png]]
350
351
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353 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
354 (% style="color:blue" %)**The following picture shows that the burning is successful**
355
356
357 [[image:image-20220602105251-15.png]]
358
359
360 = 2.  FAQ =
361
362 == 2.1  How to Compile Source Code for LA66? ==
363
364
365 Compile and Upload Code to ASR6601 Platform :[[Instruction>>Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Module.Compile and Upload Code to ASR6601 Platform.WebHome]]
366
367
368 == 2.2  Where to find Peer-to-Peer firmware of LA66? ==
369
370
371 Instruction for LA66 Peer to Peer firmware :[[ Instruction >>doc:.Instruction for LA66 Peer to Peer firmware.WebHome]]
372
373
374 = 3.  Order Info =
375
376
377 **Part Number:**   (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%)
378
379 (% style="color:blue" %)**XXX**(%%): The default frequency band
380
381 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
382 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
383 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
384 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
385 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
386 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
387 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
388 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
389 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
390
391
392
393 = 4.  Reference =
394
395
396 * Hardware Design File for LA66 LoRaWAN Shield : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
397
398
399
400 = 5.  FCC Statement =
401
402
403 (% style="color:red" %)**FCC Caution:**
404
405 Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
406
407 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
408
409
410 (% style="color:red" %)**IMPORTANT NOTE: **
411
412 (% style="color:red" %)**Note:**(%%) This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
413
414 —Reorient or relocate the receiving antenna.
415
416 —Increase the separation between the equipment and receiver.
417
418 —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
419
420 —Consult the dealer or an experienced radio/TV technician for help.
421
422
423 (% style="color:red" %)**FCC Radiation Exposure Statement: **
424
425 This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. 
426
427
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