Version 151.3 by Xiaoling on 2022/08/22 16:15
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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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50 )))
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 == 1.3  Specification ==
71
72
73 * CPU: 32-bit 48 MHz
74 * Flash: 256KB
75 * RAM: 64KB
76 * Input Power Range: 1.8v ~~ 3.7v
77 * Power Consumption: < 4uA.
78 * Frequency Range: 150 MHz ~~ 960 MHz
79 * Maximum Power +22 dBm constant RF output
80 * High sensitivity: -148 dBm
81 * Temperature:
82 ** Storage: -55 ~~ +125℃
83 ** Operating: -40 ~~ +85℃
84 * Humidity:
85 ** Storage: 5 ~~ 95% (Non-Condensing)
86 ** Operating: 10 ~~ 95% (Non-Condensing)
87 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
88 * LoRa Rx current: <9 mA
89 * I/O Voltage: 3.3v
90
91
92
93 == 1.4  Pin Mapping & LED ==
94
95
96 [[image:image-20220817085048-1.png||height="533" width="734"]]
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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
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104
105 [[image:image-20220820112305-1.png||height="515" width="749"]]
106
107
108
109 == 1.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
110
111
112 **Show connection diagram：**
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115 [[image:image-20220723170210-2.png||height="908" width="681"]]
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119 (% style="color:blue" %)**1.  open Arduino IDE**
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122 [[image:image-20220723170545-4.png]]
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126 (% style="color:blue" %)**2.  Open project**
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129 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]]
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132 [[image:image-20220726135239-1.png]]
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136 (% 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**
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139 [[image:image-20220726135356-2.png]]
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143 (% style="color:blue" %)**4.  After the upload is successful, open the serial port monitoring and send the AT command**
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146 [[image:image-20220723172235-7.png||height="480" width="1027"]]
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148
149
150 == 1.6  Example: Join TTN network and send an uplink message, get downlink message. ==
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152
153 (% style="color:blue" %)**1.  Open project**
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156 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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159 [[image:image-20220723172502-8.png]]
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163 (% 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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166 [[image:image-20220723172938-9.png||height="652" width="1050"]]
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168
169
170 == 1.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
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173 (% style="color:blue" %)**1.  Open project**
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176 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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179 [[image:image-20220723173341-10.png||height="581" width="1014"]]
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183 (% 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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186 [[image:image-20220723173950-11.png||height="665" width="1012"]]
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190 (% style="color:blue" %)**3.  Integration into Node-red via TTNV3**
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193 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/]]
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196 [[image:image-20220723175700-12.png||height="602" width="995"]]
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198
199
200 == 1.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
201
202
203 === 1.8.1  Items needed for update ===
204
205
206 1. LA66 LoRaWAN Shield
207 1. Arduino
208 1. USB TO TTL Adapter
209
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211 [[image:image-20220602100052-2.png||height="385" width="600"]]
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213
214
215 === 1.8.2  Connection ===
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218 [[image:image-20220602101311-3.png||height="276" width="600"]]
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221 (((
222 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
223 )))
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225 (((
226 (% style="background-color:yellow" %)**GND  <-> GND
227 TXD  <->  TXD
228 RXD  <->  RXD**
229 )))
230
231
232 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
233
234 Connect USB TTL Adapter to PC after connecting the wires
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237 [[image:image-20220602102240-4.png||height="304" width="600"]]
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239
240
241 === 1.8.3  Upgrade steps ===
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243
244
245 ==== (% style="color:blue" %)1.  Switch SW1 to put in ISP position(%%) ====
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248 [[image:image-20220602102824-5.png||height="306" width="600"]]
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250
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252 ==== (% style="color:blue" %)2.  Press the RST switch once(%%) ====
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255 [[image:image-20220817085447-1.png]]
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259
260 ==== (% style="color:blue" %)3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade(%%) ====
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263 (((
264 (% 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]]**
265 )))
266
267
268 [[image:image-20220602103227-6.png]]
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271 [[image:image-20220602103357-7.png]]
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275 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
276 (% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
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279 [[image:image-20220602103844-8.png]]
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283 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
284 (% style="color:blue" %)**3. Select the bin file to burn**
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287 [[image:image-20220602104144-9.png]]
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290 [[image:image-20220602104251-10.png]]
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293 [[image:image-20220602104402-11.png]]
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297 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
298 (% style="color:blue" %)**4. Click to start the download**
299
300 [[image:image-20220602104923-13.png]]
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304 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
305 (% style="color:blue" %)**5. Check update process**
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308 [[image:image-20220602104948-14.png]]
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312 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
313 (% style="color:blue" %)**The following picture shows that the burning is successful**
314
315 [[image:image-20220602105251-15.png]]
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317
318
319 = 2.  FAQ =
320
321
322 == 2.1  How to Compile Source Code for LA66? ==
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324
325 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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327
328
329 = 3.  Order Info =
330
331
332 **Part Number:**   (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%)
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335 (% style="color:blue" %)**XXX**(%%): The default frequency band
336
337 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
338 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
339 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
340 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
341 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
342 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
343 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
344 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
345 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
346
347
348
349 = 4.  Reference =
350
351
352 * Hardware Design File for LA66 LoRaWAN Shield : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
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