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Last modified by Xiaoling on 2023/09/19 09:20
From version 72.1
edited by Edwin Chen
on 2022/07/03 00:02
Change comment: There is no comment for this version
To version 162.2
edited by Xiaoling
on 2023/06/05 15:32
Change comment: There is no comment for this version

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Title
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1 -LA66 LoRaWAN Module
1 +LA66 LoRaWAN Module User Manual
Author
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1 -XWiki.Edwin
1 +XWiki.Xiaoling
Content
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1 -{{box cssClass="floatinginfobox" title="**Contents**"}}
2 -{{toc/}}
3 -{{/box}}
1 +
4 4  
5 -= LA66 LoRaWAN Module =
3 +**Table of Contents:**
6 6  
7 -== What is LA66 LoRaWAN Module ==
5 +{{toc/}}
8 8  
9 -(% 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.
10 10  
11 -(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.4 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.
12 12  
13 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
9 += 1.  LA66 LoRaWAN Module =
14 14  
15 -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.
11 +== 1.1  What is LA66 LoRaWAN Module ==
16 16  
17 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
18 18  
14 +(((
15 +(((
16 +[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
17 +)))
19 19  
20 -== Features ==
19 +(((
20 +
21 +)))
21 21  
22 -* Support LoRaWAN v1.0.4 protocol
23 -* Support peer-to-peer protocol
24 -* TCXO crystal to ensure RF performance on low temperature
25 -* SMD Antenna pad and i-pex antenna connector
26 -* Available in different frequency LoRaWAN frequency bands.
27 -* World-wide unique OTAA keys.
28 -* AT Command via UART-TTL interface
29 -* Firmware upgradable via UART interface
30 -* Ultra-long RF range
23 +(((
24 +(% 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.
25 +)))
26 +)))
31 31  
32 -== Specification ==
28 +(((
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 +)))
32 +)))
33 33  
34 -* CPU: 32-bit 48 MHz
35 -* Flash: 256KB
36 -* RAM: 64KB
37 -* Input Power Range: 1.8v ~~ 3.7v
38 -* Power Consumption: < 4uA.
39 -* Frequency Range: 150 MHz ~~ 960 MHz
40 -* Maximum Power +22 dBm constant RF output
41 -* High sensitivity: -148 dBm
42 -* Temperature:
43 -** Storage: -55 ~~ +125℃
44 -** Operating: -40 ~~ +85℃
45 -* Humidity:
46 -** Storage: 5 ~~ 95% (Non-Condensing)
47 -** Operating: 10 ~~ 95% (Non-Condensing)
48 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
49 -* LoRa Rx current: <9 mA
50 -* I/O Voltage: 3.3v
34 +(((
35 +(((
36 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
37 +)))
51 51  
52 -== AT Command ==
39 +(((
40 +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.
41 +)))
42 +)))
53 53  
54 -AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
44 +(((
45 +(((
46 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
47 +)))
48 +)))
55 55  
56 56  
57 -== Dimension ==
51 +== 1.2  Features ==
58 58  
59 -[[image:image-20220517072526-1.png]]
60 60  
61 -
62 -== Pin Mapping ==
63 -
64 -[[image:image-20220523101537-1.png]]
65 -
66 -== Land Pattern ==
67 -
68 -[[image:image-20220517072821-2.png]]
69 -
70 -
71 -== Order Info ==
72 -
73 -Part Number: **LA66-XXX**
74 -
75 -**XX**: The default frequency band
76 -
77 -* **AS923**: LoRaWAN AS923 band
78 -* **AU915**: LoRaWAN AU915 band
79 -* **EU433**: LoRaWAN EU433 band
80 -* **EU868**: LoRaWAN EU868 band
81 -* **KR920**: LoRaWAN KR920 band
82 -* **US915**: LoRaWAN US915 band
83 -* **IN865**: LoRaWAN IN865 band
84 -* **CN470**: LoRaWAN CN470 band
85 -* **PP**: Peer to Peer LoRa Protocol
86 -
87 -
88 -= LA66 LoRaWAN Shield =
89 -
90 -== Overview ==
91 -
92 -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.
93 -
94 -
95 -== Features ==
96 -
97 -* Arduino Shield base on LA66 LoRaWAN module
98 -* Support LoRaWAN v1.0.4 protocol
54 +* Support LoRaWAN v1.0.3 protocol
99 99  * Support peer-to-peer protocol
100 100  * TCXO crystal to ensure RF performance on low temperature
101 -* SMA connector
57 +* SMD Antenna pad and i-pex antenna connector
102 102  * Available in different frequency LoRaWAN frequency bands.
103 103  * World-wide unique OTAA keys.
104 104  * AT Command via UART-TTL interface
... ... @@ -105,8 +105,9 @@
105 105  * Firmware upgradable via UART interface
106 106  * Ultra-long RF range
107 107  
108 -== Specification ==
64 +== 1.3  Specification ==
109 109  
66 +
110 110  * CPU: 32-bit 48 MHz
111 111  * Flash: 256KB
112 112  * RAM: 64KB
... ... @@ -125,212 +125,172 @@
125 125  * LoRa Rx current: <9 mA
126 126  * I/O Voltage: 3.3v
127 127  
128 -== Pin Mapping & LED ==
85 +== 1.4  AT Command ==
129 129  
130 -== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
131 131  
132 -== Example: Join TTN network and send an uplink message, get downlink message. ==
88 +AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in[[ AT Command documents>>https://www.dropbox.com/sh/wtq43za8sykpgta/AABAEE02uEAsRU-JV7bzEhMba?dl=0]].
133 133  
134 -== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
135 135  
136 -== Upgrade Firmware of LA66 LoRaWAN Shield ==
91 +== 1.5  Dimension ==
137 137  
138 -=== what needs to be used ===
139 139  
140 -1.LA66 LoRaWAN Shield that needs to be upgraded
94 +[[image:image-20220718094750-3.png]]
141 141  
142 -2.Arduino
143 143  
144 -3.USB TO TTL
97 +== 1.6  Pin Mapping ==
145 145  
146 -[[image:image-20220602100052-2.png]]
99 +[[image:image-20220720111850-1.png]]
147 147  
148 -=== Wiring Schematic ===
149 149  
150 -[[image:image-20220602101311-3.png]]
102 +== 1.7  Land Pattern ==
151 151  
152 -LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
153 153  
154 -GND  >>>>>>>>>>>>GND
105 +[[image:image-20220517072821-2.png]]
155 155  
156 -TXD  >>>>>>>>>>>>TXD
157 157  
158 -RXD  >>>>>>>>>>>>RXD
108 += 2.  FAQ =
159 159  
160 -JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
110 +== 2.1  Where to find examples of how to use LA66? ==
161 161  
162 -Connect to the PC after connecting the wires
163 163  
164 -[[image:image-20220602102240-4.png]]
113 +(% class="wikigeneratedid" %)
114 +Below products are made by LA66. User can use their examples as reference:
165 165  
166 -=== Upgrade steps ===
116 +* [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
117 +* [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
167 167  
168 -==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
119 +== 2.2  How to Compile Source Code for LA66? ==
169 169  
170 -[[image:image-20220602102824-5.png]]
171 171  
172 -==== Press the RST switch on the LA66 LoRaWAN Shield once ====
122 +Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
173 173  
174 -[[image:image-20220602104701-12.png]]
175 175  
176 -==== Open the upgrade application software ====
125 +== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
177 177  
178 -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/]]
179 179  
180 -[[image:image-20220602103227-6.png]]
128 +Yes, this is possible, user can refer[[ the source code from ASR >>https://github.com/asrlora/asr_lora_6601/tree/master/projects/ASR6601SE-EVAL/examples/lora]]to get examples for how to its I/O Interfaces.
181 181  
182 -[[image:image-20220602103357-7.png]]
183 183  
184 -===== Select the COM port corresponding to USB TTL =====
131 +== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
185 185  
186 -[[image:image-20220602103844-8.png]]
187 187  
188 -===== Select the bin file to burn =====
134 +Instruction for LA66 Peer to Peer firmware :[[ Instruction >>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.Instruction for LA66 Peer to Peer firmware.WebHome]]
189 189  
190 -[[image:image-20220602104144-9.png]]
191 191  
192 -[[image:image-20220602104251-10.png]]
137 +== 2.5 How can i use J-LInk to debug LA66? ==
193 193  
194 -[[image:image-20220602104402-11.png]]
195 195  
196 -===== Click to start the download =====
140 +(% style="color:#037691" %)**The steps are as follows:**
197 197  
198 -[[image:image-20220602104923-13.png]]
199 199  
200 -===== The following figure appears to prove that the burning is in progress =====
143 +(% style="color:blue" %)**1. Install J-Link software from**
201 201  
202 -[[image:image-20220602104948-14.png]]
145 +[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
203 203  
204 -===== The following picture appears to prove that the burning is successful =====
205 205  
206 -[[image:image-20220602105251-15.png]]
148 +(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
207 207  
208 -(% class="wikigeneratedid" %)
209 -= =
210 210  
211 -== Order Info ==
151 +[[image:image-20230605151850-1.png]]
212 212  
213 -Part Number: **LA66-LoRaWAN-Shield-XXX**
214 214  
215 -**XX**: The default frequency band
154 +[[image:image-20230605151850-2.png]]
216 216  
217 -* **AS923**: LoRaWAN AS923 band
218 -* **AU915**: LoRaWAN AU915 band
219 -* **EU433**: LoRaWAN EU433 band
220 -* **EU868**: LoRaWAN EU868 band
221 -* **KR920**: LoRaWAN KR920 band
222 -* **US915**: LoRaWAN US915 band
223 -* **IN865**: LoRaWAN IN865 band
224 -* **CN470**: LoRaWAN CN470 band
225 -* **PP**: Peer to Peer LoRa Protocol
226 226  
157 +(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
227 227  
228 -(% class="wikigeneratedid" %)
229 -== Package Info ==
159 +**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
230 230  
231 -* LA66 LoRaWAN Shield x 1
232 -* RF Antenna x 1
161 +**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
233 233  
163 +**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
234 234  
165 +**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
235 235  
167 +[[image:image-20230605151850-3.png||height="629" width="1182"]]
236 236  
169 +(% style="display:none" %) (%%)
237 237  
238 -= LA66 USB LoRaWAN Adapter =
171 +(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
239 239  
240 -LA66 USB LoRaWAN Adapter is the USB Adapter for LA66, it combines a USB TTL Chip and LA66 module which can easy to test the LoRaWAN feature by using PC or embedded device which has USB Interface.
173 +(% style="display:none" %) [[image:image-20230605151850-4.png]]
241 241  
242 -Before use, please make sure that the computer has installed the CP2102 driver
243 243  
244 -== Pin Mapping & LED ==
176 +(% style="color:blue" %)**Add ASR6601 256KB Flash to Flash Download**
245 245  
246 -== Example Send & Get Messages via LoRaWAN in PC ==
178 +[[image:image-20230605152412-12.png]]
247 247  
248 -Connect the LA66 LoRa Shield to the PC
249 249  
250 -[[image:image-20220602171217-1.png||height="615" width="915"]]
181 +[[image:image-20230605151851-6.png]]
251 251  
252 -Open the serial port tool
253 253  
254 -[[image:image-20220602161617-8.png]]
184 +(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
255 255  
256 -[[image:image-20220602161718-9.png||height="529" width="927"]]
186 +[[image:image-20230605151851-7.png]]
257 257  
258 -Press the reset switch RST on the LA66 LoRa Shield.
188 +[[image:image-20230605151851-8.png]]
259 259  
260 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
261 261  
262 -[[image:image-20220602161935-10.png]]
191 +(% style="color:red" %)Note**: After debug, user should change the Flash address back to 0x0800D000, and upload the OTA bootloader to LA66. Otherwise, the compiled program doesn’t support OTA update.**
263 263  
264 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
265 265  
266 -example: AT+SENDB=01,02,8,05820802581ea0a5
194 +(% style="color:blue" %)**6. Comment the low power function in main.c.**
267 267  
268 -[[image:image-20220602162157-11.png]]
269 269  
270 -Check to see if TTN received the message
197 +[[image:image-20230605151851-9.png]]
271 271  
272 -[[image:image-20220602162331-12.png||height="547" width="1044"]]
273 273  
274 -== Example Send & Get Messages via LoRaWAN in RPi ==
200 +(% style="color:blue" %)**Click Debug mode to debug.**
275 275  
276 -Connect the LA66 LoRa Shield to the RPI
202 +[[image:image-20230605151851-10.png||height="293" width="1275"]]
277 277  
278 -[[image:image-20220602171233-2.png||height="592" width="881"]]
279 279  
280 -Log in to the RPI's terminal and connect to the serial port
205 +[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
281 281  
282 -[[image:image-20220602153146-3.png]]
207 +(% style="display:none" %) (%%)
283 283  
284 -Press the reset switch RST on the LA66 LoRa Shield.
285 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
209 += 3.  Order Info =
286 286  
287 -[[image:image-20220602154928-5.png]]
288 288  
289 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
212 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**
290 290  
291 -example: AT+SENDB=01,02,8,05820802581ea0a5
214 +(% style="color:blue" %)**XXX**(%%): The default frequency band
292 292  
293 -[[image:image-20220602160339-6.png]]
216 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
217 +* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
218 +* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
219 +* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
220 +* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
221 +* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
222 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
223 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
224 +* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
294 294  
295 -Check to see if TTN received the message
226 += 4.  FCC Statement =
296 296  
297 -[[image:image-20220602160627-7.png||height="468" width="1013"]]
298 298  
299 -=== Install Minicom ===
229 +(% style="color:red" %)**FCC Caution:**
300 300  
301 -Enter the following command in the RPI terminal
231 +Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
302 302  
303 -apt update
233 +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.
304 304  
305 -[[image:image-20220602143155-1.png]]
306 306  
307 -apt install minicom
236 +(% style="color:red" %)**IMPORTANT NOTE: **
308 308  
309 -[[image:image-20220602143744-2.png]]
238 +(% 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:
310 310  
311 -=== Send PC's CPU/RAM usage to TTN via script. ===
240 +—Reorient or relocate the receiving antenna.
312 312  
313 -==== Take python as an example： ====
242 +—Increase the separation between the equipment and receiver.
314 314  
315 -===== Preconditions: =====
244 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
316 316  
317 -1.LA66 USB LoRaWAN Adapter works fine
246 +—Consult the dealer or an experienced radio/TV technician for help.
318 318  
319 -2.LA66 USB LoRaWAN Adapter  is registered with TTN
320 320  
321 -===== Steps for usage =====
249 +(% style="color:red" %)**FCC Radiation Exposure Statement: **
322 322  
323 -1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
251 +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.
324 324  
325 -2.Run the script and see the TTN
326 -
327 -[[image:image-20220602115852-3.png]]
328 -
329 -
330 -
331 -== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
332 -
333 -
334 -== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
335 -
336 336  
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