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Version 149.2 by Xiaoling on 2022/08/17 08:57
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1
2
3 **Table of Contents:**
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5 {{toc/}}
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10 = 1.  LA66 LoRaWAN Shield =
11
12
13 == 1.1  Overview ==
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15
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17 [[image:image-20220715000826-2.png||height="145" width="220"]]
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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.
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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.
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36 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
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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.
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48 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
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51
52
53
54 == 1.2  Features ==
55
56
57 * Arduino Shield base on LA66 LoRaWAN module
58 * Support LoRaWAN v1.0.3 protocol
59 * Support peer-to-peer protocol
60 * TCXO crystal to ensure RF performance on low temperature
61 * SMA connector
62 * Available in different frequency LoRaWAN frequency bands.
63 * World-wide unique OTAA keys.
64 * AT Command via UART-TTL interface
65 * Firmware upgradable via UART interface
66 * Ultra-long RF range
67
68
69
70
71 == 1.3  Specification ==
72
73
74 * CPU: 32-bit 48 MHz
75 * Flash: 256KB
76 * RAM: 64KB
77 * Input Power Range: 1.8v ~~ 3.7v
78 * Power Consumption: < 4uA.
79 * Frequency Range: 150 MHz ~~ 960 MHz
80 * Maximum Power +22 dBm constant RF output
81 * High sensitivity: -148 dBm
82 * Temperature:
83 ** Storage: -55 ~~ +125℃
84 ** Operating: -40 ~~ +85℃
85 * Humidity:
86 ** Storage: 5 ~~ 95% (Non-Condensing)
87 ** Operating: 10 ~~ 95% (Non-Condensing)
88 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
89 * LoRa Rx current: <9 mA
90 * I/O Voltage: 3.3v
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92
93
94
95 == 1.4  Pin Mapping & LED ==
96
97
98 [[image:image-20220817085048-1.png]]
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100
101
102 ~1. The LED lights up red when there is an upstream data packet
103 2. When the network is successfully connected, the green light will be on for 5 seconds
104 3. Purple light on when receiving downlink data packets
105
106
107
108 == 1.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
109
110
111 **Show connection diagram：**
112
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114 [[image:image-20220723170210-2.png||height="908" width="681"]]
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118 (% style="color:blue" %)**1.  open Arduino IDE**
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121 [[image:image-20220723170545-4.png]]
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125 (% style="color:blue" %)**2.  Open project**
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128 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]]
129
130 [[image:image-20220726135239-1.png]]
131
132
133 (% 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**
134
135 [[image:image-20220726135356-2.png]]
136
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138 (% style="color:blue" %)**4.  After the upload is successful, open the serial port monitoring and send the AT command**
139
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141 [[image:image-20220723172235-7.png||height="480" width="1027"]]
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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**
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151 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]]
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154 [[image:image-20220723172502-8.png]]
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158 (% 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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161 [[image:image-20220723172938-9.png||height="652" width="1050"]]
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163
164
165 == 1.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
166
167
168 (% style="color:blue" %)**1.  Open project**
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171 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]]
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173
174 [[image:image-20220723173341-10.png||height="581" width="1014"]]
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178 (% 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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180
181 [[image:image-20220723173950-11.png||height="665" width="1012"]]
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185 (% style="color:blue" %)**3.  Integration into Node-red via TTNV3**
186
187 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/]]
188
189 [[image:image-20220723175700-12.png||height="602" width="995"]]
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191
192
193 == 1.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
194
195
196 === 1.8.1  Items needed for update ===
197
198
199 1. LA66 LoRaWAN Shield
200 1. Arduino
201 1. USB TO TTL Adapter
202
203 [[image:image-20220602100052-2.png||height="385" width="600"]]
204
205
206
207 === 1.8.2  Connection ===
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209
210 [[image:image-20220602101311-3.png||height="276" width="600"]]
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213 (((
214 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
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217 (((
218 (% style="background-color:yellow" %)**GND  <-> GND
219 TXD  <->  TXD
220 RXD  <->  RXD**
221 )))
222
223
224 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
225
226 Connect USB TTL Adapter to PC after connecting the wires
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229 [[image:image-20220602102240-4.png||height="304" width="600"]]
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231
232
233 === 1.8.3  Upgrade steps ===
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235
236
237 ==== (% style="color:blue" %)1.  Switch SW1 to put in ISP position(%%) ====
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240 [[image:image-20220602102824-5.png||height="306" width="600"]]
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242
243
244 ==== (% style="color:blue" %)2.  Press the RST switch once(%%) ====
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247 [[image:image-20220817085447-1.png]]
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251
252 ==== (% style="color:blue" %)3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade(%%) ====
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255 (((
256 (% style="color:blue" %)**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/]]**
257 )))
258
259
260 [[image:image-20220602103227-6.png]]
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263 [[image:image-20220602103357-7.png]]
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267 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
268 (% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
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271 [[image:image-20220602103844-8.png]]
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275 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
276 (% style="color:blue" %)**3. Select the bin file to burn**
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279 [[image:image-20220602104144-9.png]]
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282 [[image:image-20220602104251-10.png]]
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285 [[image:image-20220602104402-11.png]]
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289 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
290 (% style="color:blue" %)**4. Click to start the download**
291
292 [[image:image-20220602104923-13.png]]
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296 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
297 (% style="color:blue" %)**5. Check update process**
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300 [[image:image-20220602104948-14.png]]
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304 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
305 (% style="color:blue" %)**The following picture shows that the burning is successful**
306
307 [[image:image-20220602105251-15.png]]
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309
310
311 = 2.  FAQ =
312
313
314 == 2.1  How to Compile Source Code for LA66? ==
315
316
317 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]]
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319
320
321 = 3.  Order Info =
322
323
324 **Part Number:**   (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%)
325
326
327 (% style="color:blue" %)**XXX**(%%): The default frequency band
328
329 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
330 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
331 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
332 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
333 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
334 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
335 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
336 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
337 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
338
339
340
341 = 4.  Reference =
342
343
344 * Hardware Design File for LA66 LoRaWAN Shield : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
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