Last modified by Xiaoling on 2023/05/26 14:19
<
From version < 76.1 >
edited by Edwin Chen
on 2022/07/03 00:24
To version < 7.1 >
edited by Edwin Chen
on 2022/05/17 09:38
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -6,219 +6,62 @@
6 6  
7 7  == What is LA66 LoRaWAN Module ==
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.
9 +**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 LoRa 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 program, 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.
11 +**LA66 **is a ready-to-use module which includes the LoRaWAN v1.0.4 protocol. 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.
13 +**Each LA66 **module includes a world unique OTAA key for LoRaWAN registration.
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.
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  
19 -
20 -== Features ==
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
31 -
32 32  == Specification ==
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
51 -
52 -== AT Command ==
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.
55 -
56 -
57 -== Dimension ==
58 -
59 59  [[image:image-20220517072526-1.png]]
60 60  
21 +Input Power Range: 1.8v ~~ 3.7v
61 61  
62 -== Pin Mapping ==
23 +Power Consumption: < 4uA.
63 63  
64 -[[image:image-20220523101537-1.png]]
25 +Frequency Range: 150 MHz ~~ 960 MHz
65 65  
66 -== Land Pattern ==
27 +Maximum Power +22 dBm constant RF output
67 67  
68 -[[image:image-20220517072821-2.png]]
29 +High sensitivity: -148 dBm
69 69  
31 +Temperature:
70 70  
71 -== Order Info ==
33 +* Storage: -55 ~~ +125℃
34 +* Operating: -40 ~~ +85℃
72 72  
73 -Part Number: **LA66-XXX**
36 +Humidity:
74 74  
75 -**XX**: The default frequency band
38 +* Storage: 5 ~~ 95% (Non-Condensing)
39 +* Operating: 10 ~~ 95% (Non-Condensing)
76 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
41 +LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
86 86  
87 -= LA66 LoRaWAN Shield =
43 +LoRa Rx current: <9 mA
88 88  
89 -== Overview ==
45 +I/O Voltage: 3.3v
90 90  
91 -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.
92 92  
48 +== AT Command ==
93 93  
94 -== Features ==
50 +AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
95 95  
96 -* Arduino Shield base on LA66 LoRaWAN module
97 -* Support LoRaWAN v1.0.4 protocol
98 -* Support peer-to-peer protocol
99 -* TCXO crystal to ensure RF performance on low temperature
100 -* SMA connector
101 -* Available in different frequency LoRaWAN frequency bands.
102 -* World-wide unique OTAA keys.
103 -* AT Command via UART-TTL interface
104 -* Firmware upgradable via UART interface
105 -* Ultra-long RF range
106 106  
107 -== Specification ==
53 +== Pin Mapping ==
108 108  
109 -* CPU: 32-bit 48 MHz
110 -* Flash: 256KB
111 -* RAM: 64KB
112 -* Input Power Range: 1.8v ~~ 3.7v
113 -* Power Consumption: < 4uA.
114 -* Frequency Range: 150 MHz ~~ 960 MHz
115 -* Maximum Power +22 dBm constant RF output
116 -* High sensitivity: -148 dBm
117 -* Temperature:
118 -** Storage: -55 ~~ +125℃
119 -** Operating: -40 ~~ +85℃
120 -* Humidity:
121 -** Storage: 5 ~~ 95% (Non-Condensing)
122 -** Operating: 10 ~~ 95% (Non-Condensing)
123 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
124 -* LoRa Rx current: <9 mA
125 -* I/O Voltage: 3.3v
126 126  
127 -== Pin Mapping & LED ==
56 +== Land Pattern ==
128 128  
129 -== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
58 +[[image:image-20220517072821-2.png]]
130 130  
131 -== Example: Join TTN network and send an uplink message, get downlink message. ==
132 132  
133 -== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
61 +== Part Number ==
134 134  
135 -== Upgrade Firmware of LA66 LoRaWAN Shield ==
63 +Part Number: **LA66-XXX**
136 136  
137 -=== Items needed for update ===
138 -
139 -1. LA66 LoRaWAN Shield
140 -1. Arduino
141 -1. USB TO TTL Adapter
142 -
143 -[[image:image-20220602100052-2.png||height="385" width="600"]]
144 -
145 -
146 -=== Connection ===
147 -
148 -[[image:image-20220602101311-3.png||height="276" width="600"]]
149 -
150 -(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  <-> (% style="color:blue" %)**USB TTL**(%%)
151 -**GND  <-> GND
152 -TXD  <-> TXD
153 -RXD  <-> RXD**
154 -
155 -Put a jumper cap on JP6 of LA66 LoRaWAN Shield.
156 -
157 -Connect USB TTL Adapter to PC after connecting the wires
158 -
159 -
160 -[[image:image-20220602102240-4.png||height="304" width="600"]]
161 -
162 -
163 -=== Upgrade steps ===
164 -
165 -==== Switch SW1 to put in ISP position ====
166 -
167 -[[image:image-20220602102824-5.png||height="306" width="600"]]
168 -
169 -
170 -==== Press the RST switch once ====
171 -
172 -[[image:image-20220602104701-12.png||height="285" width="600"]]
173 -
174 -
175 -==== Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
176 -
177 -**~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/]]**
178 -
179 -[[image:image-20220602103227-6.png]]
180 -
181 -[[image:image-20220602103357-7.png]]
182 -
183 -
184 -(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
185 -**2. Select the COM port corresponding to USB TTL**
186 -
187 -[[image:image-20220602103844-8.png]]
188 -
189 -
190 -(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
191 -**3. Select the bin file to burn**
192 -
193 -[[image:image-20220602104144-9.png]]
194 -
195 -[[image:image-20220602104251-10.png]]
196 -
197 -[[image:image-20220602104402-11.png]]
198 -
199 -
200 -(% class="wikigeneratedid" id="HClicktostartthedownload" %)
201 -**4. Click to start the download**
202 -
203 -[[image:image-20220602104923-13.png]]
204 -
205 -
206 -(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
207 -**5. Check update process**
208 -
209 -[[image:image-20220602104948-14.png]]
210 -
211 -
212 -(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
213 -**The following picture shows that the burning is successful**
214 -
215 -[[image:image-20220602105251-15.png]]
216 -
217 -
218 -== Order Info ==
219 -
220 -Part Number: **LA66-LoRaWAN-Shield-XXX**
221 -
222 222  **XX**: The default frequency band
223 223  
224 224  * **AS923**: LoRaWAN AS923 band
... ... @@ -229,163 +229,20 @@
229 229  * **US915**: LoRaWAN US915 band
230 230  * **IN865**: LoRaWAN IN865 band
231 231  * **CN470**: LoRaWAN CN470 band
232 -* **PP**: Peer to Peer LoRa Protocol
233 233  
234 -== Package Info ==
76 += LA66 LoRaWAN Shield =
235 235  
236 -* LA66 LoRaWAN Shield x 1
237 -* RF Antenna x 1
78 +LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
238 238  
80 +
239 239  = LA66 USB LoRaWAN Adapter =
240 240  
241 -== Overview ==
83 +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.
242 242  
243 -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.
244 244  
86 +== Install USB Driver ==
245 245  
246 -== Features ==
247 247  
248 -* LoRaWAN USB adapter base on LA66 LoRaWAN module
249 -* Ultra-long RF range
250 -* Support LoRaWAN v1.0.4 protocol
251 -* Support peer-to-peer protocol
252 -* TCXO crystal to ensure RF performance on low temperature
253 -* Spring RF antenna
254 -* Available in different frequency LoRaWAN frequency bands.
255 -* World-wide unique OTAA keys.
256 -* AT Command via UART-TTL interface
257 -* Firmware upgradable via UART interface
89 +== Send & Get Message via LoRaWAN ==
258 258  
259 -== Specification ==
260 -
261 -* CPU: 32-bit 48 MHz
262 -* Flash: 256KB
263 -* RAM: 64KB
264 -* Input Power Range: 5v
265 -* Frequency Range: 150 MHz ~~ 960 MHz
266 -* Maximum Power +22 dBm constant RF output
267 -* High sensitivity: -148 dBm
268 -* Temperature:
269 -** Storage: -55 ~~ +125℃
270 -** Operating: -40 ~~ +85℃
271 -* Humidity:
272 -** Storage: 5 ~~ 95% (Non-Condensing)
273 -** Operating: 10 ~~ 95% (Non-Condensing)
274 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
275 -* LoRa Rx current: <9 mA
276 -
277 -== Pin Mapping & LED ==
278 -
279 -== Example Send & Get Messages via LoRaWAN in PC ==
280 -
281 -Connect the LA66 LoRa Shield to the PC
282 -
283 -[[image:image-20220602171217-1.png||height="615" width="915"]]
284 -
285 -Open the serial port tool
286 -
287 -[[image:image-20220602161617-8.png]]
288 -
289 -[[image:image-20220602161718-9.png||height="529" width="927"]]
290 -
291 -Press the reset switch RST on the LA66 LoRa Shield.
292 -
293 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
294 -
295 -[[image:image-20220602161935-10.png]]
296 -
297 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
298 -
299 -example: AT+SENDB=01,02,8,05820802581ea0a5
300 -
301 -[[image:image-20220602162157-11.png]]
302 -
303 -Check to see if TTN received the message
304 -
305 -[[image:image-20220602162331-12.png||height="547" width="1044"]]
306 -
307 -== Example Send & Get Messages via LoRaWAN in RPi ==
308 -
309 -Connect the LA66 LoRa Shield to the RPI
310 -
311 -[[image:image-20220602171233-2.png||height="592" width="881"]]
312 -
313 -Log in to the RPI's terminal and connect to the serial port
314 -
315 -[[image:image-20220602153146-3.png]]
316 -
317 -Press the reset switch RST on the LA66 LoRa Shield.
318 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
319 -
320 -[[image:image-20220602154928-5.png]]
321 -
322 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
323 -
324 -example: AT+SENDB=01,02,8,05820802581ea0a5
325 -
326 -[[image:image-20220602160339-6.png]]
327 -
328 -Check to see if TTN received the message
329 -
330 -[[image:image-20220602160627-7.png||height="468" width="1013"]]
331 -
332 -=== Install Minicom ===
333 -
334 -Enter the following command in the RPI terminal
335 -
336 -apt update
337 -
338 -[[image:image-20220602143155-1.png]]
339 -
340 -apt install minicom
341 -
342 -[[image:image-20220602143744-2.png]]
343 -
344 -=== Send PC's CPU/RAM usage to TTN via script. ===
345 -
346 -==== Take python as an example： ====
347 -
348 -===== Preconditions: =====
349 -
350 -1.LA66 USB LoRaWAN Adapter works fine
351 -
352 -2.LA66 USB LoRaWAN Adapter  is registered with TTN
353 -
354 -===== Steps for usage =====
355 -
356 -1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
357 -
358 -2.Run the script and see the TTN
359 -
360 -[[image:image-20220602115852-3.png]]
361 -
362 -
363 -
364 -== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
365 -
366 -
367 -== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
368 -
369 -
370 -
371 -== Order Info ==
372 -
373 -Part Number: **LA66-USB-LoRaWAN-Adapter-XXX**
374 -
375 -**XX**: The default frequency band
376 -
377 -* **AS923**: LoRaWAN AS923 band
378 -* **AU915**: LoRaWAN AU915 band
379 -* **EU433**: LoRaWAN EU433 band
380 -* **EU868**: LoRaWAN EU868 band
381 -* **KR920**: LoRaWAN KR920 band
382 -* **US915**: LoRaWAN US915 band
383 -* **IN865**: LoRaWAN IN865 band
384 -* **CN470**: LoRaWAN CN470 band
385 -* **PP**: Peer to Peer LoRa Protocol
386 -
387 -== Package Info ==
388 -
389 -* LA66 USB LoRaWAN Adapter x 1
390 -
391 391  
CP210x_Universal_Windows_Driver.zip
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -265.0 KB
Content
image-20220523101537-1.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -147.3 KB
Content
image-20220602095820-1.jpeg
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -853.7 KB
Content
image-20220602100052-2.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -681.9 KB
Content
image-20220602101311-3.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -1000.7 KB
Content
image-20220602102240-4.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -1.1 MB
Content
image-20220602102824-5.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -800.4 KB
Content
image-20220602103227-6.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -5.3 KB
Content
image-20220602103357-7.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -12.6 KB
Content
image-20220602103844-8.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -8.6 KB
Content
image-20220602104144-9.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -10.0 KB
Content
image-20220602104251-10.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -23.3 KB
Content
image-20220602104402-11.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -9.3 KB
Content
image-20220602104701-12.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -893.3 KB
Content
image-20220602104923-13.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -11.6 KB
Content
image-20220602104948-14.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -13.1 KB
Content
image-20220602105251-15.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -11.8 KB
Content
image-20220602114148-1.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -1.6 MB
Content
image-20220602114733-2.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -7.6 KB
Content
image-20220602115852-3.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -98.1 KB
Content
image-20220602143155-1.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -51.4 KB
Content
image-20220602143744-2.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -60.8 KB
Content
image-20220602153146-3.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -23.4 KB
Content
image-20220602153333-4.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -684.3 KB
Content
image-20220602154928-5.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -39.1 KB
Content
image-20220602160339-6.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -48.3 KB
Content
image-20220602160627-7.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -150.3 KB
Content
image-20220602161617-8.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -7.7 KB
Content
image-20220602161718-9.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -23.9 KB
Content
image-20220602161935-10.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -29.7 KB
Content
image-20220602162157-11.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -30.3 KB
Content
image-20220602162331-12.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -162.4 KB
Content
image-20220602171217-1.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -650.5 KB
Content
image-20220602171233-2.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Lu
Size
... ... @@ -1,1 +1,0 @@
1 -650.5 KB
Content

Applications

Navigation

Copyright ©2010-2024 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0