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Version 166.2 by Xiaoling on 2022/11/14 11:41
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Xiaoling 134.2 1
Xiaoling 87.2 2
Xiaoling 87.13 3 **Table of Contents:**
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Edwin Chen 1.1 5 {{toc/}}
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Edwin Chen 6.1 8
Xiaoling 87.2 9
Xiaoling 146.5 10 = 1.  LA66 LoRaWAN Shield =
Xiaoling 87.2 11
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Xiaoling 146.5 13 == 1.1  Overview ==
Xiaoling 87.2 14
Edwin Chen 88.2 15
Xiaoling 100.2 16 (((
17 [[image:image-20220715000826-2.png||height="145" width="220"]]
18 )))
Edwin Chen 90.1 19
Xiaoling 100.2 20 (((
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Xiaoling 100.4 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.
Xiaoling 100.2 26 )))
Edwin Chen 71.1 27
Edwin Chen 90.1 28 (((
Xiaoling 100.2 29 (((
Xiaoling 101.4 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.
Edwin Chen 90.1 31 )))
Xiaoling 100.2 32 )))
Edwin Chen 71.1 33
Edwin Chen 90.1 34 (((
Xiaoling 100.2 35 (((
Edwin Chen 90.1 36 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
37 )))
Xiaoling 100.2 38 )))
Edwin Chen 90.1 39
40 (((
Xiaoling 100.2 41 (((
Edwin Chen 90.1 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 )))
Xiaoling 100.2 44 )))
Edwin Chen 90.1 45
46 (((
Xiaoling 100.2 47 (((
Edwin Chen 90.1 48 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
49 )))
Xiaoling 100.2 50 )))
Edwin Chen 90.1 51
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Xiaoling 100.2 53
Xiaoling 146.5 54 == 1.2  Features ==
Edwin Chen 71.1 55
Xiaoling 137.6 56
Edwin Chen 71.1 57 * Arduino Shield base on LA66 LoRaWAN module
Xiaoling 146.10 58 * Support LoRaWAN v1.0.3 protocol
Edwin Chen 71.1 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
Xiaoling 165.5 68
Xiaoling 166.2 69
Xiaoling 146.5 70 == 1.3  Specification ==
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Edwin Chen 71.1 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
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Xiaoling 165.5 91
Xiaoling 166.2 92
Xiaoling 146.6 93 == 1.4  Pin Mapping & LED ==
Xiaoling 137.6 94
Edwin Chen 11.1 95
Edwin Chen 151.1 96 [[image:image-20220817085048-1.png||height="533" width="734"]]
Edwin Chen 146.1 97
Xiaoling 147.3 98
Xiaoling 149.2 99
Herong Lu 125.1 100 ~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
Edwin Chen 11.1 103
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Edwin Chen 151.1 105 [[image:image-20220820112305-1.png||height="515" width="749"]]
Xiaoling 134.5 106
Edwin Chen 151.1 107
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Xiaoling 146.6 109 == 1.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
Edwin Chen 11.1 110
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Xiaoling 134.3 112 **Show connection diagram：**
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Herong Lu 125.1 115 [[image:image-20220723170210-2.png||height="908" width="681"]]
Xiaoling 87.2 116
Herong Lu 125.1 117
Xiaoling 134.3 118
Xiaoling 134.6 119 (% style="color:blue" %)**1.  open Arduino IDE**
Xiaoling 134.3 120
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Herong Lu 125.1 122 [[image:image-20220723170545-4.png]]
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Xiaoling 134.3 125
Xiaoling 134.6 126 (% style="color:blue" %)**2.  Open project**
Xiaoling 134.3 127
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Edwin Chen 166.1 129 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]]
Xiaoling 134.3 130
Herong Lu 137.1 131 [[image:image-20220726135239-1.png]]
Herong Lu 125.1 132
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Xiaoling 149.3 134
Xiaoling 134.6 135 (% 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**
Xiaoling 134.3 136
Xiaoling 151.3 137
Herong Lu 137.1 138 [[image:image-20220726135356-2.png]]
Xiaoling 134.3 139
Herong Lu 125.1 140
Xiaoling 149.3 141
Xiaoling 134.6 142 (% style="color:blue" %)**4.  After the upload is successful, open the serial port monitoring and send the AT command**
Herong Lu 125.1 143
Xiaoling 134.3 144
Herong Lu 131.1 145 [[image:image-20220723172235-7.png||height="480" width="1027"]]
Herong Lu 125.1 146
Xiaoling 134.3 147
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Xiaoling 146.6 149 == 1.6  Example: Join TTN network and send an uplink message, get downlink message. ==
Xiaoling 87.2 150
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Xiaoling 134.6 152 (% style="color:blue" %)**1.  Open project**
Xiaoling 134.3 153
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Edwin Chen 166.1 155 Join-TTN-network source code link: [[https:~~/~~/www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0 >>https://www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0]]
Xiaoling 134.3 156
Xiaoling 134.7 157
Herong Lu 131.1 158 [[image:image-20220723172502-8.png]]
Xiaoling 87.2 159
Herong Lu 131.1 160
Xiaoling 134.3 161
Bei Jinggeng 159.1 162 (% 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**
Xiaoling 134.3 163
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Herong Lu 131.1 165 [[image:image-20220723172938-9.png||height="652" width="1050"]]
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Xiaoling 134.2 168
Xiaoling 146.6 169 == 1.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
Xiaoling 87.2 170
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Xiaoling 134.6 172 (% style="color:blue" %)**1.  Open project**
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Edwin Chen 166.1 175 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]]
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Herong Lu 131.1 178 [[image:image-20220723173341-10.png||height="581" width="1014"]]
Xiaoling 87.2 179
Herong Lu 131.1 180
Xiaoling 134.2 181
Xiaoling 134.6 182 (% 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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Herong Lu 131.1 185 [[image:image-20220723173950-11.png||height="665" width="1012"]]
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Xiaoling 134.2 188
Bei Jinggeng 152.1 189
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Xiaoling 134.6 191 (% style="color:blue" %)**3.  Integration into Node-red via TTNV3**
Xiaoling 134.2 192
Herong Lu 133.1 193
Xiaoling 151.3 194 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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Herong Lu 133.1 197 [[image:image-20220723175700-12.png||height="602" width="995"]]
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Xiaoling 163.2 201 == 1.8  Example: How to join helium ==
Xiaoling 87.2 202
Xiaoling 163.2 203
204 (% style="color:blue" %)**1.  Create a new device.**
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Bei Jinggeng 159.1 207 [[image:image-20220907165500-1.png||height="464" width="940"]]
Xiaoling 87.2 208
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Xiaoling 134.2 210
Xiaoling 163.2 211 (% style="color:blue" %)**2.  Save the device after filling in the necessary information.**
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Bei Jinggeng 159.1 214 [[image:image-20220907165837-2.png||height="375" width="809"]]
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Xiaoling 163.2 217
Bei Jinggeng 159.1 218 (% style="color:blue" %)**3.  Use AT commands.**
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Xiaoling 163.2 220
Bei Jinggeng 159.1 221 [[image:image-20220602100052-2.png||height="385" width="600"]]
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Xiaoling 163.2 225 (% style="color:#0000ff" %)**4.  Use command AT+CFG to get device configuration**
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Bei Jinggeng 159.1 228 [[image:image-20220907170308-3.png||height="556" width="617"]]
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Xiaoling 163.2 231
Bei Jinggeng 159.1 232 (% style="color:blue" %)**5.  Network successfully.**
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Xiaoling 163.2 234
Bei Jinggeng 159.1 235 [[image:image-20220907170436-4.png]]
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Xiaoling 163.2 238
Bei Jinggeng 159.1 239 (% style="color:blue" %)**6.  Send uplink using command**
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Xiaoling 163.2 242 [[image:image-20220912084334-1.png]]
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Bei Jinggeng 159.1 249 [[image:image-20220907170744-6.png||height="242" width="798"]]
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Xiaoling 163.2 252
Bei Jinggeng 159.1 253 == 1.9  Upgrade Firmware of LA66 LoRaWAN Shield ==
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256 === 1.9.1  Items needed for update ===
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Edwin Chen 74.1 259 1. LA66 LoRaWAN Shield
260 1. Arduino
261 1. USB TO TTL Adapter
Edwin Chen 13.1 262
Edwin Chen 75.1 263 [[image:image-20220602100052-2.png||height="385" width="600"]]
Herong Lu 20.1 264
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Xiaoling 137.6 266
Bei Jinggeng 159.1 267 === 1.9.2  Connection ===
Herong Lu 20.1 268
Xiaoling 87.2 269
Edwin Chen 75.1 270 [[image:image-20220602101311-3.png||height="276" width="600"]]
Herong Lu 20.1 271
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Xiaoling 87.17 273 (((
Xiaoling 87.2 274 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
Xiaoling 87.17 275 )))
Xiaoling 87.2 276
Xiaoling 87.16 277 (((
Xiaoling 87.2 278 (% style="background-color:yellow" %)**GND  <-> GND
Xiaoling 87.8 279 TXD  <->  TXD
280 RXD  <->  RXD**
Xiaoling 87.16 281 )))
Xiaoling 87.2 282
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Edwin Chen 77.1 284 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
Herong Lu 20.1 285
Edwin Chen 75.1 286 Connect USB TTL Adapter to PC after connecting the wires
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Edwin Chen 75.1 289 [[image:image-20220602102240-4.png||height="304" width="600"]]
Herong Lu 20.1 290
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Xiaoling 137.6 292
Bei Jinggeng 159.1 293 === 1.9.3  Upgrade steps ===
Herong Lu 20.1 294
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Xiaoling 146.9 296
Xiaoling 165.5 297 ==== (% style="color:blue" %)**1.  Switch SW1 to put in ISP position**(%%) ====
Xiaoling 87.2 298
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Edwin Chen 75.1 300 [[image:image-20220602102824-5.png||height="306" width="600"]]
Herong Lu 32.1 301
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Xiaoling 87.9 303
Xiaoling 163.2 304
Xiaoling 165.5 305 ==== (% style="color:blue" %)**2.  Press the RST switch once**(%%) ====
Herong Lu 32.1 306
Xiaoling 87.10 307
Xiaoling 148.2 308 [[image:image-20220817085447-1.png]]
Herong Lu 32.1 309
Edwin Chen 75.1 310
Xiaoling 87.9 311
Xiaoling 148.3 312
Xiaoling 165.5 313 ==== (% style="color:blue" %)**3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade**(%%) ====
Edwin Chen 75.1 314
Herong Lu 39.1 315
Xiaoling 163.2 316
Xiaoling 87.18 317 (((
Xiaoling 163.2 318 (% 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]]**
Xiaoling 87.18 319 )))
Xiaoling 87.2 320
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Herong Lu 32.1 322 [[image:image-20220602103227-6.png]]
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Xiaoling 87.2 324
Herong Lu 32.1 325 [[image:image-20220602103357-7.png]]
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Xiaoling 87.2 328
Edwin Chen 76.1 329 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
Xiaoling 163.2 330 (% style="color:blue" %)**2.  Select the COM port corresponding to USB TTL**
Edwin Chen 76.1 331
Xiaoling 87.2 332
Herong Lu 32.1 333 [[image:image-20220602103844-8.png]]
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Xiaoling 87.2 336
Edwin Chen 76.1 337 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
Xiaoling 163.2 338 (% style="color:blue" %)**3.  Select the bin file to burn**
Edwin Chen 76.1 339
Xiaoling 87.2 340
Herong Lu 32.1 341 [[image:image-20220602104144-9.png]]
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Herong Lu 32.1 344 [[image:image-20220602104251-10.png]]
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Herong Lu 32.1 347 [[image:image-20220602104402-11.png]]
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Xiaoling 87.2 350
Edwin Chen 76.1 351 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
Xiaoling 163.2 352 (% style="color:blue" %)**4.  Click to start the download**
Edwin Chen 76.1 353
Xiaoling 151.4 354
Herong Lu 32.1 355 [[image:image-20220602104923-13.png]]
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Xiaoling 87.10 358
Edwin Chen 76.1 359 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
Xiaoling 163.2 360 (% style="color:blue" %)**5.  Check update process**
Edwin Chen 76.1 361
Xiaoling 87.2 362
Herong Lu 32.1 363 [[image:image-20220602104948-14.png]]
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Xiaoling 87.2 366
Edwin Chen 76.1 367 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
Xiaoling 87.2 368 (% style="color:blue" %)**The following picture shows that the burning is successful**
Edwin Chen 76.1 369
Xiaoling 151.4 370
Herong Lu 32.1 371 [[image:image-20220602105251-15.png]]
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Edwin Chen 72.1 373
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Xiaoling 146.7 375 = 2.  FAQ =
Edwin Chen 6.1 376
Edwin Chen 7.1 377
Xiaoling 165.2 378 == 2.1  How to Compile Source Code for LA66? ==
Xiaoling 87.2 379
Xiaoling 100.3 380
Xiaoling 146.4 381 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]]
Xiaoling 137.2 382
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Xiaoling 165.2 385 == 2.2  Where to find Peer-to-Peer firmware of LA66? ==
Edwin Chen 164.1 386
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Xiaoling 165.2 388 Instruction for LA66 Peer to Peer firmware :[[ Instruction >>doc:.Instruction for LA66 Peer to Peer firmware.WebHome]]
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Xiaoling 146.7 392 = 3.  Order Info =
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Xiaoling 146.7 395 **Part Number:**   (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%)
Xiaoling 87.4 396
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Xiaoling 87.5 398 (% style="color:blue" %)**XXX**(%%): The default frequency band
Edwin Chen 86.1 399
Xiaoling 87.5 400 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
401 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
402 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
403 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
404 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
405 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
406 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
407 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
408 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
Edwin Chen 73.1 409
Xiaoling 165.3 410
Xiaoling 166.2 411
Xiaoling 146.7 412 = 4.  Reference =
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415 * Hardware Design File for LA66 LoRaWAN Shield : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
Xiaoling 148.3 416
Xiaoling 165.4 417
Xiaoling 166.2 418
Xiaoling 165.4 419 = 5.  FCC Statement =
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421
422 (% style="color:red" %)**FCC Caution:**
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424 Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
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426 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.
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429 (% style="color:red" %)**IMPORTANT NOTE: **
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431 (% 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:
432
433 —Reorient or relocate the receiving antenna.
434
435 —Increase the separation between the equipment and receiver.
436
437 —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
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439 —Consult the dealer or an experienced radio/TV technician for help.
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441
442 (% style="color:red" %)**FCC Radiation Exposure Statement: **
443
444 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.