Last modified by Xiaoling on 2023/05/26 14:19
<
From version < 146.7 >
edited by Xiaoling
on 2022/08/16 14:19
To version < 107.1 >
edited by Herong Lu
on 2022/07/23 11:05
>
Change comment: Uploaded new attachment "image-20220723110520-5.png", version {1}

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -LA66 LoRaWAN Shield User Manual
1 +LA66 LoRaWAN Module
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Xiaoling
1 +XWiki.Lu
Content
... ... @@ -6,15 +6,15 @@
6 6  
7 7  
8 8  
9 += 1.  LA66 LoRaWAN Module =
9 9  
10 -= 1.  LA66 LoRaWAN Shield =
11 11  
12 +== 1.1  What is LA66 LoRaWAN Module ==
12 12  
13 -== 1.1  Overview ==
14 14  
15 -
16 16  (((
17 -[[image:image-20220715000826-2.png||height="145" width="220"]]
16 +(((
17 +[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
18 18  )))
19 19  
20 20  (((
... ... @@ -22,12 +22,13 @@
22 22  )))
23 23  
24 24  (((
25 -(% 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 +(% 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.
26 26  )))
27 +)))
27 27  
28 28  (((
29 29  (((
30 -(% 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.
31 +(% 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.
31 31  )))
32 32  )))
33 33  
... ... @@ -35,10 +35,8 @@
35 35  (((
36 36  Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
37 37  )))
38 -)))
39 39  
40 40  (((
41 -(((
42 42  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.
43 43  )))
44 44  )))
... ... @@ -53,12 +53,10 @@
53 53  
54 54  == 1.2  Features ==
55 55  
56 -
57 -* Arduino Shield base on LA66 LoRaWAN module
58 58  * Support LoRaWAN v1.0.4 protocol
59 59  * Support peer-to-peer protocol
60 60  * TCXO crystal to ensure RF performance on low temperature
61 -* SMA connector
58 +* SMD Antenna pad and i-pex antenna connector
62 62  * Available in different frequency LoRaWAN frequency bands.
63 63  * World-wide unique OTAA keys.
64 64  * AT Command via UART-TTL interface
... ... @@ -66,11 +66,8 @@
66 66  * Ultra-long RF range
67 67  
68 68  
69 -
70 -
71 71  == 1.3  Specification ==
72 72  
73 -
74 74  * CPU: 32-bit 48 MHz
75 75  * Flash: 256KB
76 76  * RAM: 64KB
... ... @@ -90,110 +90,131 @@
90 90  * I/O Voltage: 3.3v
91 91  
92 92  
87 +== 1.4  AT Command ==
93 93  
94 94  
95 -== 1.4  Pin Mapping & LED ==
90 +AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
96 96  
97 97  
98 -[[image:image-20220814101457-1.png||height="553" width="761"]]
99 99  
100 -~1. The LED lights up red when there is an upstream data packet
101 -2. When the network is successfully connected, the green light will be on for 5 seconds
102 -3. Purple light on when receiving downlink data packets
94 +== 1.5  Dimension ==
103 103  
96 +[[image:image-20220718094750-3.png]]
104 104  
105 105  
106 -== 1.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
107 107  
100 +== 1.6  Pin Mapping ==
108 108  
109 -**Show connection diagram：**
102 +[[image:image-20220720111850-1.png]]
110 110  
111 111  
112 -[[image:image-20220723170210-2.png||height="908" width="681"]]
113 113  
106 +== 1.7  Land Pattern ==
114 114  
108 +[[image:image-20220517072821-2.png]]
115 115  
116 -(% style="color:blue" %)**1.  open Arduino IDE**
117 117  
118 118  
119 -[[image:image-20220723170545-4.png]]
112 += 2.  LA66 LoRaWAN Shield =
120 120  
121 121  
115 +== 2.1  Overview ==
122 122  
123 -(% style="color:blue" %)**2.  Open project**
124 124  
118 +(((
119 +[[image:image-20220715000826-2.png||height="145" width="220"]]
120 +)))
125 125  
126 -LA66-LoRaWAN-shield-AT-command-via-Arduino-UNO source code link: [[https:~~/~~/www.dropbox.com/sh/cx0pspkwu62pr97/AAAbKh2ioPdZfSDtdDpooYqha?dl=0>>https://www.dropbox.com/sh/cx0pspkwu62pr97/AAAbKh2ioPdZfSDtdDpooYqha?dl=0]]
122 +(((
123 +
124 +)))
127 127  
128 -[[image:image-20220726135239-1.png]]
126 +(((
127 +(% 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.
128 +)))
129 129  
130 +(((
131 +(((
132 +(% 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.
133 +)))
134 +)))
130 130  
131 -(% 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**
136 +(((
137 +(((
138 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
139 +)))
140 +)))
132 132  
133 -[[image:image-20220726135356-2.png]]
142 +(((
143 +(((
144 +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.
145 +)))
146 +)))
134 134  
148 +(((
149 +(((
150 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
151 +)))
152 +)))
135 135  
136 -(% style="color:blue" %)**4.  After the upload is successful, open the serial port monitoring and send the AT command**
137 137  
138 138  
139 -[[image:image-20220723172235-7.png||height="480" width="1027"]]
156 +== 2.2  Features ==
140 140  
158 +* Arduino Shield base on LA66 LoRaWAN module
159 +* Support LoRaWAN v1.0.4 protocol
160 +* Support peer-to-peer protocol
161 +* TCXO crystal to ensure RF performance on low temperature
162 +* SMA connector
163 +* Available in different frequency LoRaWAN frequency bands.
164 +* World-wide unique OTAA keys.
165 +* AT Command via UART-TTL interface
166 +* Firmware upgradable via UART interface
167 +* Ultra-long RF range
141 141  
142 142  
143 -== 1.6  Example: Join TTN network and send an uplink message, get downlink message. ==
170 +== 2.3  Specification ==
144 144  
172 +* CPU: 32-bit 48 MHz
173 +* Flash: 256KB
174 +* RAM: 64KB
175 +* Input Power Range: 1.8v ~~ 3.7v
176 +* Power Consumption: < 4uA.
177 +* Frequency Range: 150 MHz ~~ 960 MHz
178 +* Maximum Power +22 dBm constant RF output
179 +* High sensitivity: -148 dBm
180 +* Temperature:
181 +** Storage: -55 ~~ +125℃
182 +** Operating: -40 ~~ +85℃
183 +* Humidity:
184 +** Storage: 5 ~~ 95% (Non-Condensing)
185 +** Operating: 10 ~~ 95% (Non-Condensing)
186 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
187 +* LoRa Rx current: <9 mA
188 +* I/O Voltage: 3.3v
145 145  
146 -(% style="color:blue" %)**1.  Open project**
147 147  
191 +== 2.4  Pin Mapping & LED ==
148 148  
149 -Join-TTN-network source code link: [[https:~~/~~/www.dropbox.com/sh/0sjyncafa0gjv00/AACC2m1orov-QHRkvH8-ddCka?dl=0>>https://www.dropbox.com/sh/0sjyncafa0gjv00/AACC2m1orov-QHRkvH8-ddCka?dl=0]]
150 150  
151 151  
152 -[[image:image-20220723172502-8.png]]
195 +== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
153 153  
154 154  
155 155  
156 -(% 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**
199 +== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
157 157  
158 158  
159 -[[image:image-20220723172938-9.png||height="652" width="1050"]]
160 160  
203 +== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
161 161  
162 162  
163 -== 1.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
164 164  
207 +== 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
165 165  
166 -(% style="color:blue" %)**1.  Open project**
167 167  
210 +=== 2.8.1  Items needed for update ===
168 168  
169 -Log-Temperature-Sensor-and-send-data-to-TTN source code link: [[https:~~/~~/www.dropbox.com/sh/0aagmrpec1lxmva/AABMXWVMSHG9dK1_Zv_7xOmCa?dl=0>>https://www.dropbox.com/sh/0aagmrpec1lxmva/AABMXWVMSHG9dK1_Zv_7xOmCa?dl=0]]
170 -
171 -
172 -[[image:image-20220723173341-10.png||height="581" width="1014"]]
173 -
174 -
175 -
176 -(% 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**
177 -
178 -
179 -[[image:image-20220723173950-11.png||height="665" width="1012"]]
180 -
181 -
182 -
183 -(% style="color:blue" %)**3.  Integration into Node-red via TTNV3**
184 -
185 -For the usage of Node-RED, please refer to: [[http:~~/~~/8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/>>http://8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/]]
186 -
187 -[[image:image-20220723175700-12.png||height="602" width="995"]]
188 -
189 -
190 -
191 -== 1.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
192 -
193 -
194 -=== 1.8.1  Items needed for update ===
195 -
196 -
197 197  1. LA66 LoRaWAN Shield
198 198  1. Arduino
199 199  1. USB TO TTL Adapter
... ... @@ -201,10 +201,9 @@
201 201  [[image:image-20220602100052-2.png||height="385" width="600"]]
202 202  
203 203  
219 +=== 2.8.2  Connection ===
204 204  
205 -=== 1.8.2  Connection ===
206 206  
207 -
208 208  [[image:image-20220602101311-3.png||height="276" width="600"]]
209 209  
210 210  
... ... @@ -227,11 +227,10 @@
227 227  [[image:image-20220602102240-4.png||height="304" width="600"]]
228 228  
229 229  
230 -
231 231  === 2.8.3  Upgrade steps ===
232 232  
233 233  
234 -==== (% style="color:blue" %)1.  Switch SW1 to put in ISP position(%%) ====
247 +==== 1.  Switch SW1 to put in ISP position ====
235 235  
236 236  
237 237  [[image:image-20220602102824-5.png||height="306" width="600"]]
... ... @@ -238,7 +238,7 @@
238 238  
239 239  
240 240  
241 -==== (% style="color:blue" %)2.  Press the RST switch once(%%) ====
254 +==== 2.  Press the RST switch once ====
242 242  
243 243  
244 244  [[image:image-20220602104701-12.png||height="285" width="600"]]
... ... @@ -245,7 +245,7 @@
245 245  
246 246  
247 247  
248 -==== (% style="color:blue" %)3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade(%%) ====
261 +==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
249 249  
250 250  
251 251  (((
... ... @@ -304,22 +304,233 @@
304 304  
305 305  
306 306  
307 -= 2.  FAQ =
320 += 3.  LA66 USB LoRaWAN Adapter =
308 308  
309 309  
310 -== 2.1  How to Compile Source Code for LA66? ==
323 +== 3.1  Overview ==
311 311  
312 312  
313 -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]]
326 +[[image:image-20220715001142-3.png||height="145" width="220"]]
314 314  
315 315  
329 +(((
330 +(% style="color:blue" %)**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.
331 +)))
316 316  
317 -= 3.  Order Info =
333 +(((
334 +(% 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.
335 +)))
318 318  
337 +(((
338 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
339 +)))
319 319  
320 -**Part Number:**   (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%)
341 +(((
342 +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.
343 +)))
321 321  
345 +(((
346 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
347 +)))
322 322  
349 +
350 +
351 +== 3.2  Features ==
352 +
353 +* LoRaWAN USB adapter base on LA66 LoRaWAN module
354 +* Ultra-long RF range
355 +* Support LoRaWAN v1.0.4 protocol
356 +* Support peer-to-peer protocol
357 +* TCXO crystal to ensure RF performance on low temperature
358 +* Spring RF antenna
359 +* Available in different frequency LoRaWAN frequency bands.
360 +* World-wide unique OTAA keys.
361 +* AT Command via UART-TTL interface
362 +* Firmware upgradable via UART interface
363 +* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
364 +
365 +
366 +== 3.3  Specification ==
367 +
368 +* CPU: 32-bit 48 MHz
369 +* Flash: 256KB
370 +* RAM: 64KB
371 +* Input Power Range: 5v
372 +* Frequency Range: 150 MHz ~~ 960 MHz
373 +* Maximum Power +22 dBm constant RF output
374 +* High sensitivity: -148 dBm
375 +* Temperature:
376 +** Storage: -55 ~~ +125℃
377 +** Operating: -40 ~~ +85℃
378 +* Humidity:
379 +** Storage: 5 ~~ 95% (Non-Condensing)
380 +** Operating: 10 ~~ 95% (Non-Condensing)
381 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
382 +* LoRa Rx current: <9 mA
383 +
384 +
385 +== 3.4  Pin Mapping & LED ==
386 +
387 +
388 +
389 +== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
390 +
391 +
392 +(((
393 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
394 +)))
395 +
396 +
397 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
398 +
399 +
400 +[[image:image-20220723100027-1.png]]
401 +
402 +
403 +Open the serial port tool
404 +
405 +[[image:image-20220602161617-8.png]]
406 +
407 +[[image:image-20220602161718-9.png||height="457" width="800"]]
408 +
409 +
410 +
411 +(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
412 +
413 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
414 +
415 +
416 +[[image:image-20220602161935-10.png||height="498" width="800"]]
417 +
418 +
419 +
420 +(% style="color:blue" %)**3. See Uplink Command**
421 +
422 +Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
423 +
424 +example: AT+SENDB=01,02,8,05820802581ea0a5
425 +
426 +[[image:image-20220602162157-11.png||height="497" width="800"]]
427 +
428 +
429 +
430 +(% style="color:blue" %)**4. Check to see if TTN received the message**
431 +
432 +[[image:image-20220602162331-12.png||height="420" width="800"]]
433 +
434 +
435 +
436 +== 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
437 +
438 +
439 +**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]]
440 +
441 +(**Raspberry Pi example: **[[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py]])
442 +
443 +(% style="color:red" %)**Preconditions:**
444 +
445 +(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
446 +
447 +(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
448 +
449 +
450 +
451 +(% style="color:blue" %)**Steps for usage:**
452 +
453 +(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
454 +
455 +(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
456 +
457 +[[image:image-20220602115852-3.png||height="450" width="1187"]]
458 +
459 +
460 +
461 +== 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
462 +
463 +
464 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
465 +
466 +
467 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
468 +
469 +[[image:image-20220723100439-2.png]]
470 +
471 +
472 +
473 +(% style="color:blue" %)**2. Install Minicom in RPi.**
474 +
475 +(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
476 +
477 + (% style="background-color:yellow" %)**apt update**
478 +
479 + (% style="background-color:yellow" %)**apt install minicom**
480 +
481 +
482 +Use minicom to connect to the RPI's terminal
483 +
484 +[[image:image-20220602153146-3.png||height="439" width="500"]]
485 +
486 +
487 +
488 +(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
489 +
490 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
491 +
492 +
493 +[[image:image-20220602154928-5.png||height="436" width="500"]]
494 +
495 +
496 +
497 +(% style="color:blue" %)**4. Send Uplink message**
498 +
499 +Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
500 +
501 +example: AT+SENDB=01,02,8,05820802581ea0a5
502 +
503 +
504 +[[image:image-20220602160339-6.png||height="517" width="600"]]
505 +
506 +
507 +
508 +Check to see if TTN received the message
509 +
510 +[[image:image-20220602160627-7.png||height="369" width="800"]]
511 +
512 +
513 +
514 +== 3.8  Example: Use of LA66 USB LoRaWAN Module and DRAGINO-LA66-APP. ==
515 +
516 +=== 3.8.1 DRAGINO-LA66-APP ===
517 +
518 +[[image:image-20220723102027-3.png]]
519 +
520 +==== Overview： ====
521 +
522 +DRAGINO-LA66-APP is a mobile APP for LA66 USB LoRaWAN Module. DRAGINO-LA66-APP can obtain the positioning information of the mobile phone and send it to the LoRaWAN platform through the LA66 USB LoRaWAN Module.（DRAGINO-LA66-APP currently only supports Android system）
523 +
524 +==== Conditions of Use： ====
525 +
526 +Requires a type-c to USB adapter
527 +
528 +[[image:image-20220723104754-4.png]]
529 +
530 +==== Use of APP: ====
531 +
532 +LA66 USB LoRaWAN Module not connected
533 +
534 +
535 +
536 +== 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
537 +
538 +
539 +
540 +
541 += 4.  Order Info =
542 +
543 +
544 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
545 +
546 +
323 323  (% style="color:blue" %)**XXX**(%%): The default frequency band
324 324  
325 325  * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
... ... @@ -332,10 +332,6 @@
332 332  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
333 333  * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
334 334  
559 += 5.  Reference =
335 335  
336 -
337 -
338 -= 4.  Reference =
339 -
340 -
341 -* Hardware Design File for LA66 LoRaWAN Shield : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
561 +* 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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