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From version < 98.10 >
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Summary

Details

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Title
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1 -PG1302
1 +PG1302 LoRaWAN Concentrator
Content
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1 -
2 -
3 3  (% style="text-align:center" %)
4 -[[image:Main.User Manual for All Gateway models.WebHome@pg1302.jpg]]
2 +[[image:Main.User Manual for All Gateway models.WebHome@pg1302.jpg||height="391" width="549"]]
5 5  
6 6  
7 7  
8 -
9 -
10 -
11 -
12 12  **PG1302 LoRaWAN Concentrator User Manual**
13 13  
14 14  
9 +**Contents:**
15 15  
16 -
17 -
18 18  {{toc/}}
19 19  
20 20  
21 -----
22 -
23 23  (% class="wikigeneratedid" id="H" %)
24 24  (((
25 25  
26 26  )))
27 27  
28 -=== 1. Introduction ===
19 += 1. Introduction =
29 29  
30 -==== 1.1 What is PG1302 LoRaWAN Concentrator? ====
21 +== 1.1 What is PG1302 LoRaWAN Concentrator? ==
31 31  
32 32  (((
33 -(((
34 -(((
35 -(((
36 36  The PG1302 is a multi-channel high performance transmitter/receiver designed to simultaneously receive several LoRa packets using random spreading factors on random channels. Its goal is to enable robust connection between a central wireless data concentrator and a massive amount of wireless end-points spread over a very wide range of distances.
37 37  )))
38 -)))
39 -)))
40 40  
41 41  (((
42 -(((
43 -(((
44 44  The PG1302 is design to use with Raspberry Pi to build smart metering fixed networks and Internet of Things applications with up to 5000 nodes per km2 in moderately interfered environment.
45 45  )))
46 -)))
47 -)))
48 -)))
49 49  
50 50  (((
51 -(((
52 -(((
53 -(((
54 54  PG1302 is fully compatible with RPi3/4, users can use the pre-build OS from Dragino to set up and easy to use the module by Web UI. Or install the raw lorawan driver in the exist OS.
55 55  )))
56 -)))
57 -)))
58 -)))
59 59  
60 -(((
61 -(((
62 -
63 -)))
64 -)))
35 +== 1.2 Features ==
65 65  
66 -==== 1.2 Features ====
67 -
68 68  * Base on Semtech SX1302 solution
69 69  * Support Raspberry Pi 3B/3B+/4
70 70  * Up to -140dBm sensitivity
... ... @@ -72,40 +72,28 @@
72 72  * Mini-PCIe Interface
73 73  * Converter board to support Raspberry Pi
74 74  
75 -==== 1.3 General Interfaces ====
44 +== 1.3 General Interfaces ==
76 76  
77 77  * SPI interface for LoRa
78 78  * Power Input: 5v, 1A
79 79  * 1 x I-PEX for LoRa
80 80  
81 -==== 1.4 Pin Mapping ====
50 +== 1.4 Pin Mapping ==
82 82  
83 83   [[image:1651743282627-547.png||height="402" width="425"]]
84 84  
54 +== 1.5 LEDs ==
85 85  
86 -
87 -==== 1.5 LEDs ====
88 -
89 -(((
90 90   TX: Blink when transmit a packet
91 -)))
92 -
93 -(((
94 94   RX: Blink when receive a packet
95 -)))
96 -
97 -(((
98 98   Config: Always ON
99 -)))
100 100  
60 +== 1.6 Power Consumption ==
101 101  
102 -==== 1.6 Power Consumption ====
103 -
104 104   TBD
105 105  
64 +== 1.7 Applications ==
106 106  
107 -==== 1.7 Applications ====
108 -
109 109  * Smart Buildings & Home Automation
110 110  * Logistics and Supply Chain Management
111 111  * Smart Metering
... ... @@ -113,50 +113,38 @@
113 113  * Smart Cities
114 114  * Smart Factory
115 115  
116 -=== 2. Example: Set up as LoRaWAN gateway. ===
73 += 2. Example: Set up as LoRaWAN gateway. =
117 117  
118 -==== 2.1 System structure ====
75 +== 2.1 System structure ==
119 119  
120 -(((
121 121  This example is an example to show how to set up the PG1302 + RPi as a LoRaWAN gateway to use with [[TheThingsNetwork>>url:http://www.thethingsnetwork.org/]](TTN) LoRaWAN server. Set up method for other server are similar.
122 -)))
123 123  
124 124  [[image:1651743698677-436.png||height="457" width="686"]]
125 125  
81 +== 2.2 Hardware Installation ==
126 126  
83 +(% style="color:red" %)**Important Notice: Please power the RPI with 5V,3A cable.**
127 127  
128 -==== 2.2 Hardware Installation ====
129 -
130 -**Important Notice: **Please power the RPI with 5V,3A cable.
131 -
132 132  [[image:1651743803032-803.png]]
133 133  
87 += 3. Install the software? =
134 134  
89 +There are two ways to install software in RPi4 to use PG1302.
135 135  
136 -=== 3. Install the software? ===
137 -
138 - There are two ways to install software in RPi4 to use PG1302.
139 -
140 140  * Flash SD card with Dragino pre-build image which support Web UI.
141 141  * Install lora packet forwarder in existing RPi OS.
142 142  
143 -=== 4. Flash with pre-build image ===
94 += 4. Flash with pre-build image =
144 144  
145 -==== 4.1 Download the dragino image for RPI ====
96 +== 4.1 Download the dragino image for RPI ==
146 146  
147 -(((
148 - Download PG1302_for_Rpi4_64_with_webui from
149 -)))
98 +Download PG1302_for_Rpi4_64_with_webui from
99 +[[https:~~/~~/www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0>>https://www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0]]
150 150  
151 -(((
152 - [[https:~~/~~/www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0>>https://www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0]]
153 -)))
101 +== 4.2 Flash the image to SD card ==
154 154  
103 +Flash the image to SD card:
155 155  
156 -==== 4.2 Flash the image to SD card ====
157 -
158 - Flash the image to SD card:
159 -
160 160  [[image:1651744119133-233.png||height="373" width="621"]]
161 161  
162 162   Note: Download the flash tool following this link
... ... @@ -163,69 +163,56 @@
163 163  
164 164   [[https:~~/~~/www.balena.io/etcher/>>https://www.balena.io/etcher/]]
165 165  
111 +== 4.3 Access the Linux console ==
166 166  
167 -==== 4.3 Access the Linux console ====
113 +Connect the RPI Ethernet port to your router, RPi will obtain an IP address from your router. In the router’s management portal, you should be able to find what IP address the router has assigned to the RPI. You can use this IP to connect the WEB UI or SSH access of RPI. Make sure your PC and the RPI is in the same network, then use a SSH tool (such as [[putty>>url:http://www.chiark.greenend.org.uk/~~sgtatham/putty/download.html]]) to access it. Below are screenshots
168 168  
169 -Connect the RPI Ethernet port to your router, RPi will obtain an IP address from your router. In the router’s management portal, you should be able to find what IP address the router has assigned to the RPI. You can use this IP to connect the WEB UI or SSH access of RPI.
170 -
171 -Make sure your PC and the RPI is in the same network, then use a SSH tool (such as [[putty>>url:http://www.chiark.greenend.org.uk/~~sgtatham/putty/download.html]]) to access it. Below are screenshots
172 -
173 173  [[image:1651744193675-591.png||height="450" width="466"]]
174 174  
117 +The account details for Web Login are:
175 175  
176 - The account details for Web Login are:
177 -
178 -**~ User Name: root**
179 -
180 -**~ Password:   dragino**
181 -
182 -
183 -**~ Backup account**
184 -
185 -**~ Pi/dragino**
186 -
187 -
188 - After log in, you will be in the Linux console and type command here.
189 -
190 -[[image:1651744358515-107.png||height="366" width="581"]]
191 -
192 -
193 -==== 4.4 Access the WebUI of RPi4. ====
194 -
195 -===== 4.4.1 Home page =====
196 -
197 197  (((
198 -Open a browser on the PC and type the RPI ip address
120 +**~ (% style="color:#0000ff" %)User Name: root(%%)**
199 199  )))
200 200  
201 201  (((
202 - [[http:~~/~~/IP_ADDRESS** **>>url:http://192.168.1.xx/]] (If the IP is assigned by uplink router)
124 +**~ (% style="color:#0000ff" %)Password:   dragino(%%)**
203 203  )))
204 204  
205 205  (((
206 -You will see the login interface of RPI as shown below.
128 +
207 207  )))
208 208  
209 209  (((
210 -The account details for Web Login are:
132 +**~ (% style="color:#0000ff" %)Backup account(%%)**
211 211  )))
212 212  
213 213  (((
214 -**~ User Name: root**
136 +**~ (% style="color:#0000ff" %)Pi/dragino(%%)**
215 215  )))
216 216  
139 +After log in, you will be in the Linux console and type command here.
140 +
141 +[[image:1651744358515-107.png||height="366" width="581"]]
142 +
143 +== 4.4 Access the WebUI of RPi4. ==
144 +
145 +=== 4.4.1 Home page ===
146 +
147 +Open a browser on the PC and type the RPI ip address[[http:~~/~~/IP_ADDRESS** **>>url:http://192.168.1.xx/]] (If the IP is assigned by uplink router)
148 +You will see the login interface of RPI as shown below.
149 +The account details for Web Login are:
150 +
217 217  (((
218 -**~ Password:   dragino**
152 +**~ (% style="color:#0000ff" %)User Name: root(%%)**
153 +(% style="color:#0000ff" %)** Password:   dragino**
219 219  )))
220 220  
221 221  [[image:1651744457761-993.png||height="352" width="621"]]
222 222  
158 +=== 4.4.2 LoRa Page ===
223 223  
224 -===== 4.4.2 LoRa Page =====
225 -
226 -(((
227 227  This page shows the LoRa Radio Settings. There are a set of default frequency band according to LoRaWAN protocol, and user can customize the band* as well.
228 -)))
229 229  
230 230  [[image:1651744554845-970.png||height="328" width="621"]]
231 231  
... ... @@ -243,20 +243,18 @@
243 243  
244 244  [[http:~~/~~/wiki.dragino.com/index.php?title=Customized_Frequency_Band_for_Gateway>>url:http://wiki.dragino.com/index.php?title=Customized_Frequency_Band_for_Gateway]]
245 245  
178 +=== 4.4.3 LoRaWAN Page ===
246 246  
247 -===== 4.4.3 LoRaWAN Page =====
180 +==== 4.4.3.1 Semtech UDP ====
248 248  
249 -====== 4.4.3.1 Semtech UDP ======
250 -
251 251  [[image:1651744767914-283.png||height="352" width="621"]]
252 252  
253 - Note *: See this instruction for how to configure TTN.
184 +Note *: See this instruction for how to configure TTN.
254 254  
255 - [[https:~~/~~/wiki.dragino.com/index.php?title=Notes_for_TTN>>url:https://wiki.dragino.com/index.php?title=Notes_for_TTN||style="background-color: rgb(255, 255, 255);"]]
186 +[[https:~~/~~/wiki.dragino.com/index.php?title=Notes_for_TTN>>url:https://wiki.dragino.com/index.php?title=Notes_for_TTN||style="background-color: rgb(255, 255, 255);"]]
256 256  
188 +==== 4.4.3.2 Basic Station ====
257 257  
258 -====== 4.4.3.2 Basic Station ======
259 -
260 260  [[image:1651744890629-683.png||height="380" width="621"]]
261 261  
262 262  Note *: See this instruction for how to configure TTN.
... ... @@ -263,68 +263,62 @@
263 263  
264 264  [[https:~~/~~/wiki.dragino.com/index.php?title=Notes_for_AWS-IoT-Core>>url:https://wiki.dragino.com/index.php?title=Notes_for_AWS-IoT-Core]]
265 265  
196 +=== 4.4.4 LogRead ===
266 266  
267 -===== 4.4.4 LogRead =====
198 +==== 4.4.4.1 LoRa Log ====
268 268  
269 -====== 4.4.4.1 LoRa Log ======
270 -
271 271  [[image:1651744955955-452.png||height="571" width="621"]]
272 272  
273 273  Show the frequency for LoRa Radio and traffics.
274 274  
204 +==== 4.4.4.2 System Log ====
275 275  
276 -====== 4.4.4.2 System Log ======
277 -
278 278  Show system log.
279 279  
280 280  [[image:1651745003470-264.png||height="477" width="621"]]
281 281  
210 +==== 4.4.4.3 Record Log ====
282 282  
283 -====== 4.4.4.3 Record Log ======
284 -
285 285  **Record the system log.**
286 286  
287 287  [[image:1651745069814-662.png||height="144" width="621"]]
288 288  
216 += 5. Install stand alone LoRa Packet Forwarder. =
289 289  
290 -=== 5. Install stand alone LoRa Packet Forwarder. ===
218 +== 5.1 OS requirement ==
291 291  
292 -==== 5.1 OS requirement ====
293 -
294 294  RPI in this example is RPI model 4B with fresh Raspbian OS install.
295 295  
296 - pi@raspberrypi:~~$ cat /etc/os-release
297 -
222 +(% class="box" %)
223 +(((
224 + pi@raspberrypi:~~$ cat /etc/os-release
298 298   PRETTY_NAME="Raspbian GNU/Linux 8 (jessie)"
299 -
300 300   NAME="Raspbian GNU/Linux"
301 -
302 302   VERSION_ID="8"
303 -
304 304   VERSION="8 (jessie)"
305 -
306 306   ID=raspbian
307 -
308 308   ID_LIKE=debian
309 -
310 310   HOME_URL="http:~/~/www.raspbian.org/"
311 -
312 312   SUPPORT_URL="http:~/~/www.raspbian.org/RaspbianForums"
313 -
314 314   BUG_REPORT_URL="http:~/~/www.raspbian.org/RaspbianBugs"
234 +)))
315 315  
236 +== 5.2 Get Gateway ID in Raspberry and input this in TTN v3. ==
316 316  
317 -==== 5.2 Get Gateway ID in Raspberry and input this in TTN v3. ====
318 -
319 319  In RPI, run below command to get a Gateway ID
320 320  
321 - (% class="mark" %)ifconfig eth0
240 +(% class="box infomessage" %)
241 +(((
242 + ifconfig eth0
243 +)))
322 322  
323 323  [[image:1651745210205-512.png||height="130" width="621"]]
324 324  
325 325  (((
248 +(((
326 326  We got the ether (eth0 MAC) address is b8:27:eb:49:62:bc). Add ffff at the end and remove “:” to get the gateway ID: b827ebxxxxbcffff.  Input this to TTN v3. Make sure to select legacy packet forwarder.
327 327  )))
251 +)))
328 328  
329 329  [[image:1651745267862-321.png||height="526" width="621"]]
330 330  
... ... @@ -334,51 +334,54 @@
334 334  
335 335  [[image:1651745366987-458.png||height="363" width="621"]]
336 336  
261 +=== 5.2.1 Download and install LoRaWAN packet forwarder ===
337 337  
338 -===== 5.2.1 Download and install LoRaWAN packet forwarder =====
339 -
340 340  Enable SPI and I2C first:
341 341  
342 342  a)SPI needs to be enabled on the Raspberry Pi
343 343  
344 -Run sudo raspi-config to open the config window
267 +Run (% style="background-color:#dcdcdc" %)**sudo raspi-config**(%%) to open the config window
345 345  
346 -[[image:1651745476754-240.png||height="235" width="631"]]
269 +[[image:1651745476754-240.png||height="234" width="629"]]
347 347  
348 348  [[image:image-20220505181135-1.png]]
349 349  
350 -[[image:image-20220505181135-2.png]]
273 +[[image:image-20220505181135-2.png||height="229" width="622"]]
351 351  
352 352  In RPI , Fist: Enter root account:
353 353  
354 -[[image:1651745583363-614.png]]
277 +(((
278 +[[image:1651745583363-614.png||height="151" width="732"]]
279 +)))
355 355  
356 -
357 357  and then run:
358 358  
359 -wget [[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_Gateway/PG1302/software/auto_install.sh>>url:https://www.dragino.com/downloads/downloads/LoRa_Gateway/PG1302/software/auto_install.sh]]
283 +(% style="background-color:#dcdcdc" %)wget [[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_Gateway/PG1302/software/auto_install.sh>>url:https://www.dragino.com/downloads/downloads/LoRa_Gateway/PG1302/software/auto_install.sh]]
360 360  
361 -chmod +x ./auto_install.sh
285 +(% style="background-color:#dcdcdc" %)chmod +x ./auto_install.sh
362 362  
363 -./auto_install.sh
287 +(% style="background-color:#dcdcdc" %)./auto_install.sh
364 364  
365 -[[image:1651745611629-818.png]]
289 +(((
290 +[[image:1651745611629-818.png||height="225" width="729"]]
291 +)))
366 366  
367 367  This will download the packet forwarder package from Dragino Server to RPI, and start install the package.
368 368  
369 369  You can get these output:
370 370  
297 +(((
371 371  [[image:1651745657252-173.png||height="426" width="621"]]
299 +)))
372 372  
301 +=== 5.2.2 Config Gateway ID, Frequency Band and Server address ===
373 373  
374 -===== 5.2.2 Config Gateway ID, Frequency Band and Server address =====
375 -
376 376  (((
377 -After installation, user can find the configuration file in** /etc/lora/ **Replace the gateway ID we got above to the **gateway_ID** in file **local_conf.json.**
304 +After installation, user can find the configuration file in** (% style="color:#0000ff" %)/etc/lora/ (%%)**Replace the gateway ID we got above to the (% style="color:#0000ff" %)**gateway_ID** (%%)in file (% style="color:#0000ff" %)**local_conf.json.**
378 378  )))
379 379  
380 380  (((
381 -The default LoRaWAN server points to localhost, user need to put the correct server address to the server_address field in file **local_conf.json**, like below.
308 +The default LoRaWAN server points to localhost, user need to put the correct server address to the server_address field in file (% style="color:#0000ff" %)**local_conf.json**(%%), like below.
382 382  )))
383 383  
384 384  [[image:1651745709709-887.png||height="820" width="621"]]
... ... @@ -387,32 +387,26 @@
387 387  
388 388  [[Server Addresses ~| The Things Stack for LoRaWAN (thethingsindustries.com)>>url:https://www.thethingsindustries.com/docs/getting-started/server-addresses/#deployments]]
389 389  
317 +And the default frequency band is US915 in (% style="color:#0000ff" %)**global_conf.json**(%%) file.
390 390  
391 -And the default frequency band is US915 in **global_conf.json** file.
392 -
393 393  [[image:1651745838008-820.png||height="650" width="621"]]
394 394  
395 -* If user want to change to other frequency bands, User can copy the file from **/etc/lora/cfg-302 **and put it into** /etc/lora/global_conf.json.**
321 +* If user want to change to other frequency bands, User can copy the file from(% style="color:#0000ff" %)** /etc/lora/cfg-302**(%%) ** **and put it into** (% style="color:#0000ff" %)/etc/lora/global_conf.json(%%).**
396 396  
397 397   1).Chose your need the name of region frequency.
398 398  
399 -[[image:1651745867516-322.png]]
325 +[[image:1651745867516-322.png||height="83" width="740"]]
400 400  
401 401   2). Use this command to copy it.
402 402  
403 403   cp /etc/lora/cfg-302/EU-global_conf.json /etc/lora/global_conf.json
404 404  
405 -[[image:1651745984006-868.png]]
331 +[[image:1651745984006-868.png||height="87" width="745"]]
406 406  
407 -* If user wants to change to other LoRaWAN server, modify the **global_conf.json** file.
333 +* If user wants to change to other LoRaWAN server, modify the (% style="color:#0000ff" %)**global_conf.json**(%%) file.
408 408  
409 -(% class="wikigeneratedid" %)
410 -(((
411 -
412 -)))
335 +=== 5.2.3 Check result ===
413 413  
414 -===== 5.2.3 Check result =====
415 -
416 416  (((
417 417  Run below command to restart the dragino_fwd:
418 418  )))
... ... @@ -440,7 +440,7 @@
440 440  )))
441 441  )))
442 442  
443 -[[image:1651746045057-414.png]]
364 +[[image:1651746045057-414.png||height="193" width="729"]]
444 444  
445 445  The dragino_fwd will start with the new gateway ID and TTN v3 should show the connection ok:
446 446  
... ... @@ -451,62 +451,67 @@
451 451  
452 452  (% class="box infomessage" %)
453 453  (((
454 - **// sudo journalctl -u draginofwd -f//**
375 + sudo journalctl -u draginofwd -f
455 455  )))
456 456  
457 -[[image:1651746111963-838.png]]
378 +[[image:1651746111963-838.png||height="184" width="730"]]
458 458  
459 459   If there are LoRaWAN nodes transmitting nearby, we can see the traffic in TTN v3 –> Gateway ~-~-> Live data
460 460  
461 -
462 462  [[image:1651746139304-966.png||height="326" width="621"]]
463 463  
384 +=== 5.2.4 Commands to handle service ===
464 464  
465 -===== 5.2.4 Commands to handle service =====
386 +* (% style="color:#0000ff" %)**Stop** (%%)dragino_fwd service:  sudo systemctl stop draginofwd
387 +* (% style="color:#0000ff" %)**Disable**(%%) dragino_fwd auto run after boot: sudo systemctl disable draginofwd
388 +* (% style="color:#0000ff" %)**Start** (%%)dragino_fwd : sudo systemctl start draginofwd
389 +* (% style="color:#0000ff" %)**Auto run**(%%) dragino_fwd after boot:  sudo systemctl enable draginofwd
390 +* (% style="color:#0000ff" %)**Show status** (%%)of dragino_fwd:  sudo systemctl status draginofwd
466 466  
467 -* **Stop** dragino_fwd service:  sudo systemctl stop draginofwd
468 -* **Disable** dragino_fwd auto run after boot: sudo systemctl disable draginofwd
469 -* **Start** dragino_fwd : sudo systemctl start draginofwd
470 -* **Auto run** dragino_fwd after boot:  sudo systemctl enable draginofwd
471 -* **Show status** of dragino_fwd:  sudo systemctl status draginofwd
392 += 6. Order Info =
472 472  
473 -=== 6. Order Info ===
394 +Part Number: (% style="color:#0000ff" %)**PG1302-XX**   (%%) Or  Part Number: (% style="color:#0000ff" %)**PG1302-PI-XX   **(%%)(Include RPi converter board for RPI 3/4)
474 474  
475 -Part Number: **PG1302-XX**  Or  Part Number: **PG1302-PI-XX   **(Include RPi converter board for RPI 3/4)
396 +**~ (% style="color:#0000ff" %)XX:(%%)**
476 476  
477 -**~ XX:**
398 +* (% style="color:#0000ff" %)868 (%%)(For Bands: EU868,IN865)
399 +* (% style="color:#0000ff" %)915 (%%)(For Bands: US915,AU915,AS923,KR920)
400 +* (% style="color:#0000ff" %)470 (%%)(For Band: CN470)
478 478  
479 -* 868 (For Bands: EU868,IN865)
480 -* 915 (For Bands: US915,AU915,AS923,KR920)
481 -* 470 (For Band: CN470)
402 += 7. Packing Info =
482 482  
483 -=== 7. Packing Info ===
484 -
485 485  (((
486 486  **PG1302 Package Includes**:
487 487  )))
488 488  
489 489  (((
409 +(((
490 490  * PG1302 x 1
411 +* LoRa Antenna x 1
491 491  )))
413 +)))
492 492  
493 493  (((
416 +**PG1302-PI Package Includes**:
417 +)))
418 +
419 +* PG1302 x 1
494 494  * LoRa Antenna x 1
421 +* RPi3/4 converter PCB
422 +* Screws to hole converter PCB on RPI.
423 +
424 +(((
425 += 8. Support =
426 +
427 +(((
428 +If you are experiencing issues and can’t solve, you can send mail to
495 495  )))
496 496  
497 497  (((
498 -**PG1302-PI Package Includes**:
432 +[[support@dragino.com>>mailto:support@dragino.com]]
499 499  )))
500 500  
501 -* (((
502 -PG1302 x 1
435 +(((
436 +With your question as detail as possible. We will reply and help you in the shortest.
503 503  )))
504 -* (((
505 -LoRa Antenna x 1
506 506  )))
507 -* (((
508 -RPi3/4 converter PCB
509 -)))
510 -* (((
511 -Screws to hole converter PCB on RPI.
512 -)))

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