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Last modified by Xiaoling on 2023/09/19 09:20
From version 87.1
edited by Edwin Chen
on 2022/07/11 09:10
Change comment: There is no comment for this version
To version 162.5
edited by Xiaoling
on 2023/09/18 16:35
Change comment: There is no comment for this version

Summary

Details

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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 -
72 -= LA66 LoRaWAN Shield =
73 -
74 -== Overview ==
75 -
76 -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.
77 -
78 -
79 -== Features ==
80 -
81 -* Arduino Shield base on LA66 LoRaWAN module
82 -* Support LoRaWAN v1.0.4 protocol
54 +* Support LoRaWAN v1.0.3 protocol
83 83  * Support peer-to-peer protocol
84 84  * TCXO crystal to ensure RF performance on low temperature
85 -* SMA connector
57 +* SMD Antenna pad and i-pex antenna connector
86 86  * Available in different frequency LoRaWAN frequency bands.
87 87  * World-wide unique OTAA keys.
88 88  * AT Command via UART-TTL interface
... ... @@ -89,8 +89,10 @@
89 89  * Firmware upgradable via UART interface
90 90  * Ultra-long RF range
91 91  
92 -== Specification ==
93 93  
65 +== 1.3  Specification ==
66 +
67 +
94 94  * CPU: 32-bit 48 MHz
95 95  * Flash: 256KB
96 96  * RAM: 64KB
... ... @@ -109,269 +109,177 @@
109 109  * LoRa Rx current: <9 mA
110 110  * I/O Voltage: 3.3v
111 111  
112 -== Pin Mapping & LED ==
113 113  
114 -== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
87 +== 1.4  AT Command ==
115 115  
116 -== Example: Join TTN network and send an uplink message, get downlink message. ==
117 117  
118 -== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
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>>https://www.dropbox.com/scl/fi/s3i58dyuh2zpwxfzcks9d/Accuhealth-LA66-AT-commands.pdf?rlkey=059co9isdbddl1h1lb5gy93oy&dl=0]].
119 119  
120 -== Upgrade Firmware of LA66 LoRaWAN Shield ==
92 +== 1.5  Dimension ==
121 121  
122 -=== Items needed for update ===
123 123  
124 -1. LA66 LoRaWAN Shield
125 -1. Arduino
126 -1. USB TO TTL Adapter
95 +[[image:image-20220718094750-3.png]]
127 127  
128 -[[image:image-20220602100052-2.png||height="385" width="600"]]
129 129  
98 +== 1.6  Pin Mapping ==
130 130  
131 -=== Connection ===
100 +[[image:image-20220720111850-1.png]]
132 132  
133 -[[image:image-20220602101311-3.png||height="276" width="600"]]
134 134  
135 -(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  <-> (% style="color:blue" %)**USB TTL**(%%)
136 -**GND  <-> GND
137 -TXD  <-> TXD
138 -RXD  <-> RXD**
103 +== 1.7  Land Pattern ==
139 139  
140 -Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
141 141  
142 -Connect USB TTL Adapter to PC after connecting the wires
106 +[[image:image-20220517072821-2.png]]
143 143  
144 144  
145 -[[image:image-20220602102240-4.png||height="304" width="600"]]
109 += 2.  FAQ =
146 146  
111 +== 2.1  Where to find examples of how to use LA66? ==
147 147  
148 -=== Upgrade steps ===
149 149  
150 -==== Switch SW1 to put in ISP position ====
114 +(% class="wikigeneratedid" %)
115 +Below products are made by LA66. User can use their examples as reference:
151 151  
152 -[[image:image-20220602102824-5.png||height="306" width="600"]]
117 +* [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
118 +* [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
153 153  
154 154  
155 -==== Press the RST switch once ====
121 +== 2.2  How to Compile Source Code for LA66? ==
156 156  
157 -[[image:image-20220602104701-12.png||height="285" width="600"]]
158 158  
124 +Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
159 159  
160 -==== Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
161 161  
162 -**~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/]]**
127 +== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
163 163  
164 -[[image:image-20220602103227-6.png]]
165 165  
166 -[[image:image-20220602103357-7.png]]
130 +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.
167 167  
168 168  
169 -(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
170 -**2. Select the COM port corresponding to USB TTL**
133 +== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
171 171  
172 -[[image:image-20220602103844-8.png]]
173 173  
136 +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]]
174 174  
175 -(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
176 -**3. Select the bin file to burn**
177 177  
178 -[[image:image-20220602104144-9.png]]
139 +== 2.5 How can i use J-LInk to debug LA66? ==
179 179  
180 -[[image:image-20220602104251-10.png]]
181 181  
182 -[[image:image-20220602104402-11.png]]
142 +(% style="color:#037691" %)**The steps are as follows:**
183 183  
184 184  
185 -(% class="wikigeneratedid" id="HClicktostartthedownload" %)
186 -**4. Click to start the download**
145 +(% style="color:blue" %)**1. Install J-Link software from**
187 187  
188 -[[image:image-20220602104923-13.png]]
147 +[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
189 189  
190 190  
191 -(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
192 -**5. Check update process**
150 +(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
193 193  
194 -[[image:image-20220602104948-14.png]]
195 195  
153 +[[image:image-20230605151850-1.png||height="676" width="640"]]
196 196  
197 -(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
198 -**The following picture shows that the burning is successful**
199 199  
200 -[[image:image-20220602105251-15.png]]
156 +[[image:image-20230605151850-2.png]]
201 201  
158 +(% style="display:none" %) (%%)
202 202  
160 +(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
203 203  
204 -= LA66 USB LoRaWAN Adapter =
205 205  
206 -== Overview ==
163 +**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
207 207  
208 -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.
165 +**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
209 209  
167 +**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
210 210  
211 -== Features ==
169 +**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
212 212  
213 -* LoRaWAN USB adapter base on LA66 LoRaWAN module
214 -* Ultra-long RF range
215 -* Support LoRaWAN v1.0.4 protocol
216 -* Support peer-to-peer protocol
217 -* TCXO crystal to ensure RF performance on low temperature
218 -* Spring RF antenna
219 -* Available in different frequency LoRaWAN frequency bands.
220 -* World-wide unique OTAA keys.
221 -* AT Command via UART-TTL interface
222 -* Firmware upgradable via UART interface
171 +[[image:image-20230605151850-3.png||height="629" width="1182"]]
223 223  
224 -== Specification ==
173 +(% style="display:none" %) (%%)
225 225  
226 -* CPU: 32-bit 48 MHz
227 -* Flash: 256KB
228 -* RAM: 64KB
229 -* Input Power Range: 5v
230 -* Frequency Range: 150 MHz ~~ 960 MHz
231 -* Maximum Power +22 dBm constant RF output
232 -* High sensitivity: -148 dBm
233 -* Temperature:
234 -** Storage: -55 ~~ +125℃
235 -** Operating: -40 ~~ +85℃
236 -* Humidity:
237 -** Storage: 5 ~~ 95% (Non-Condensing)
238 -** Operating: 10 ~~ 95% (Non-Condensing)
239 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
240 -* LoRa Rx current: <9 mA
175 +(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
241 241  
242 -== Pin Mapping & LED ==
177 +(% style="display:none" %) [[image:image-20230605151850-4.png]]
243 243  
244 -== Example Send & Get Messages via LoRaWAN in PC ==
245 245  
246 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
180 +**Add ASR6601 256KB Flash to Flash Download**
247 247  
248 -~1. Connect the LA66 USB LoRaWAN adapter to PC
182 +[[image:image-20230605152412-12.png]]
249 249  
250 -[[image:image-20220602171217-1.png||height="538" width="800"]]
251 251  
252 -Open the serial port tool
185 +[[image:image-20230605151851-6.png]]
253 253  
254 -[[image:image-20220602161617-8.png]]
255 255  
256 -[[image:image-20220602161718-9.png||height="457" width="800"]]
188 +(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
257 257  
258 258  
259 -2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.
191 +[[image:image-20230605151851-7.png]]
260 260  
261 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
193 +[[image:image-20230605151851-8.png]]
262 262  
263 -[[image:image-20220602161935-10.png||height="498" width="800"]]
264 264  
196 +(% 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.**
265 265  
266 -3. See Uplink Command
267 267  
268 -Command format: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
199 +(% style="color:blue" %)**6. Comment the low power function in main.c.**
269 269  
270 -example: AT+SENDB=01,02,8,05820802581ea0a5
271 271  
272 -[[image:image-20220602162157-11.png||height="497" width="800"]]
202 +[[image:image-20230605151851-9.png]]
273 273  
274 274  
275 -4. Check to see if TTN received the message
205 +(% style="color:blue" %)**Click Debug mode to debug.**
276 276  
277 -[[image:image-20220602162331-12.png||height="420" width="800"]]
207 +[[image:image-20230605151851-10.png||height="293" width="1275"]]
278 278  
279 279  
210 +[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
280 280  
281 -== Example:Send PC's CPU/RAM usage to TTN via python ==
212 +(% style="display:none" %) (%%)
282 282  
283 -(% class="wikigeneratedid" id="HUsepythonasanexampleFF1A" %)
284 -**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]]
214 += 3.  Order Info =
285 285  
286 -(% class="wikigeneratedid" id="HPreconditions:" %)
287 -**Preconditions:**
288 288  
289 -1.LA66 USB LoRaWAN Adapter works fine
217 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**
290 290  
291 -2.LA66 USB LoRaWAN Adapter  is registered with TTN
219 +(% style="color:blue" %)**XXX**(%%): The default frequency band
292 292  
293 -(% class="wikigeneratedid" id="HStepsforusage" %)
294 -**Steps for usage**
221 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
222 +* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
223 +* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
224 +* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
225 +* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
226 +* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
227 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
228 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
229 +* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
295 295  
296 -1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
297 297  
298 -2.Run the python script in PC and see the TTN
232 += 4.  FCC Statement =
299 299  
300 -[[image:image-20220602115852-3.png||height="450" width="1187"]]
301 301  
235 +(% style="color:red" %)**FCC Caution:**
302 302  
237 +Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
303 303  
304 -== Example Send & Get Messages via LoRaWAN in RPi ==
239 +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.
305 305  
306 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
307 307  
308 -~1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi
242 +(% style="color:red" %)**IMPORTANT NOTE: **
309 309  
310 -[[image:image-20220602171233-2.png||height="538" width="800"]]
244 +(% 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:
311 311  
246 +—Reorient or relocate the receiving antenna.
312 312  
313 -2. Install Minicom in RPi.
248 +—Increase the separation between the equipment and receiver.
314 314  
315 -(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
250 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
316 316  
317 -(% class="mark" %)apt update
252 +—Consult the dealer or an experienced radio/TV technician for help.
318 318  
319 -(% class="mark" %)apt install minicom
320 320  
255 +(% style="color:red" %)**FCC Radiation Exposure Statement: **
321 321  
322 -Use minicom to connect to the RPI's terminal
257 +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.
323 323  
324 -[[image:image-20220602153146-3.png||height="439" width="500"]]
325 -
326 -
327 -3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.
328 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network
329 -
330 -[[image:image-20220602154928-5.png||height="436" width="500"]]
331 -
332 -
333 -4. Send Uplink message
334 -
335 -Format: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
336 -
337 -example: AT+SENDB=01,02,8,05820802581ea0a5
338 -
339 -[[image:image-20220602160339-6.png||height="517" width="600"]]
340 -
341 -Check to see if TTN received the message
342 -
343 -[[image:image-20220602160627-7.png||height="369" width="800"]]
344 -
345 -
346 -
347 -== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
348 -
349 -
350 -== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
351 -
352 -
353 -
354 -= Order Info =
355 -
356 -Part Number:
357 -
358 -**LA66-XXX**, **LA66-LoRaWAN-Shield-XXX** or **LA66-USB-LoRaWAN-Adapter-XXX**
359 -
360 -**XXX**: The default frequency band
361 -
362 -* **AS923**: LoRaWAN AS923 band
363 -* **AU915**: LoRaWAN AU915 band
364 -* **EU433**: LoRaWAN EU433 band
365 -* **EU868**: LoRaWAN EU868 band
366 -* **KR920**: LoRaWAN KR920 band
367 -* **US915**: LoRaWAN US915 band
368 -* **IN865**: LoRaWAN IN865 band
369 -* **CN470**: LoRaWAN CN470 band
370 -* **PP**: Peer to Peer LoRa Protocol
371 -
372 -
373 -= Reference =
374 -
375 -* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
376 -
377 377  
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