<
From version < 99.5 >
edited by Xiaoling
on 2022/05/14 17:07
To version < 98.9 >
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1 -PG1302 LoRaWAN Concentrator
1 +PG1302
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1 +
2 +
1 1  (% style="text-align:center" %)
2 -[[image:Main.User Manual for All Gateway models.WebHome@pg1302.jpg||height="391" width="549"]]
4 +[[image:Main.User Manual for All Gateway models.WebHome@pg1302.jpg]]
3 3  
4 4  
5 5  
8 +
9 +
10 +
11 +
6 6  **PG1302 LoRaWAN Concentrator User Manual**
7 7  
8 8  
9 -**Contents:**
10 10  
16 +
17 +
11 11  {{toc/}}
12 12  
13 13  
21 +----
22 +
14 14  (% class="wikigeneratedid" id="H" %)
15 15  (((
16 16  
17 17  )))
18 18  
19 -= 1. Introduction =
28 +=== 1. Introduction ===
20 20  
21 -== 1.1 What is PG1302 LoRaWAN Concentrator? ==
30 +==== 1.1 What is PG1302 LoRaWAN Concentrator? ====
22 22  
23 23  (((
33 +(((
34 +(((
35 +(((
24 24  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.
25 25  )))
38 +)))
39 +)))
26 26  
27 27  (((
42 +(((
43 +(((
28 28  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.
29 29  )))
46 +)))
47 +)))
48 +)))
30 30  
31 31  (((
51 +(((
52 +(((
53 +(((
32 32  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.
33 33  )))
56 +)))
57 +)))
58 +)))
34 34  
35 -== 1.2 Features ==
60 +(((
61 +(((
62 +
63 +)))
64 +)))
36 36  
66 +==== 1.2 Features ====
67 +
37 37  * Base on Semtech SX1302 solution
38 38  * Support Raspberry Pi 3B/3B+/4
39 39  * Up to -140dBm sensitivity
... ... @@ -41,28 +41,40 @@
41 41  * Mini-PCIe Interface
42 42  * Converter board to support Raspberry Pi
43 43  
44 -== 1.3 General Interfaces ==
75 +==== 1.3 General Interfaces ====
45 45  
46 46  * SPI interface for LoRa
47 47  * Power Input: 5v, 1A
48 48  * 1 x I-PEX for LoRa
49 49  
50 -== 1.4 Pin Mapping ==
81 +==== 1.4 Pin Mapping ====
51 51  
52 52   [[image:1651743282627-547.png||height="402" width="425"]]
53 53  
54 -== 1.5 LEDs ==
55 55  
86 +
87 +==== 1.5 LEDs ====
88 +
89 +(((
56 56   TX: Blink when transmit a packet
91 +)))
92 +
93 +(((
57 57   RX: Blink when receive a packet
95 +)))
96 +
97 +(((
58 58   Config: Always ON
99 +)))
59 59  
60 -== 1.6 Power Consumption ==
61 61  
102 +==== 1.6 Power Consumption ====
103 +
62 62   TBD
63 63  
64 -== 1.7 Applications ==
65 65  
107 +==== 1.7 Applications ====
108 +
66 66  * Smart Buildings & Home Automation
67 67  * Logistics and Supply Chain Management
68 68  * Smart Metering
... ... @@ -70,38 +70,50 @@
70 70  * Smart Cities
71 71  * Smart Factory
72 72  
73 -= 2. Example: Set up as LoRaWAN gateway. =
116 +=== 2. Example: Set up as LoRaWAN gateway. ===
74 74  
75 -== 2.1 System structure ==
118 +==== 2.1 System structure ====
76 76  
120 +(((
77 77  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 +)))
78 78  
79 79  [[image:1651743698677-436.png||height="457" width="686"]]
80 80  
81 -== 2.2 Hardware Installation ==
82 82  
83 -(% style="color:red" %)**Important Notice: Please power the RPI with 5V,3A cable.**
84 84  
128 +==== 2.2 Hardware Installation ====
129 +
130 +**Important Notice: **Please power the RPI with 5V,3A cable.
131 +
85 85  [[image:1651743803032-803.png]]
86 86  
87 -= 3. Install the software? =
88 88  
89 -There are two ways to install software in RPi4 to use PG1302.
90 90  
136 +=== 3. Install the software? ===
137 +
138 + There are two ways to install software in RPi4 to use PG1302.
139 +
91 91  * Flash SD card with Dragino pre-build image which support Web UI.
92 92  * Install lora packet forwarder in existing RPi OS.
93 93  
94 -= 4. Flash with pre-build image =
143 +=== 4. Flash with pre-build image ===
95 95  
96 -== 4.1 Download the dragino image for RPI ==
145 +==== 4.1 Download the dragino image for RPI ====
97 97  
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]]
147 +(((
148 + Download PG1302_for_Rpi4_64_with_webui from
149 +)))
100 100  
101 -== 4.2 Flash the image to SD card ==
151 +(((
152 + [[https:~~/~~/www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0>>https://www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0]]
153 +)))
102 102  
103 -Flash the image to SD card:
104 104  
156 +==== 4.2 Flash the image to SD card ====
157 +
158 + Flash the image to SD card:
159 +
105 105  [[image:1651744119133-233.png||height="373" width="621"]]
106 106  
107 107   Note: Download the flash tool following this link
... ... @@ -108,56 +108,69 @@
108 108  
109 109   [[https:~~/~~/www.balena.io/etcher/>>https://www.balena.io/etcher/]]
110 110  
111 -== 4.3 Access the Linux console ==
112 112  
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
167 +==== 4.3 Access the Linux console ====
114 114  
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 +
115 115  [[image:1651744193675-591.png||height="450" width="466"]]
116 116  
117 -The account details for Web Login are:
118 118  
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 +
119 119  (((
120 -**~ (% style="color:#0000ff" %)User Name: root(%%)**
198 +Open a browser on the PC and type the RPI ip address
121 121  )))
122 122  
123 123  (((
124 -**~ (% style="color:#0000ff" %)Password:   dragino(%%)**
202 + [[http:~~/~~/IP_ADDRESS** **>>url:http://192.168.1.xx/]] (If the IP is assigned by uplink router)
125 125  )))
126 126  
127 127  (((
128 -
206 +You will see the login interface of RPI as shown below.
129 129  )))
130 130  
131 131  (((
132 -**~ (% style="color:#0000ff" %)Backup account(%%)**
210 +The account details for Web Login are:
133 133  )))
134 134  
135 135  (((
136 -**~ (% style="color:#0000ff" %)Pi/dragino(%%)**
214 +**~ User Name: root**
137 137  )))
138 138  
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 -
151 151  (((
152 -**~ (% style="color:#0000ff" %)User Name: root(%%)**
153 -(% style="color:#0000ff" %)** Password:   dragino**
218 +**~ Password:   dragino**
154 154  )))
155 155  
156 156  [[image:1651744457761-993.png||height="352" width="621"]]
157 157  
158 -=== 4.4.2 LoRa Page ===
159 159  
224 +===== 4.4.2 LoRa Page =====
225 +
226 +(((
160 160  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 +)))
161 161  
162 162  [[image:1651744554845-970.png||height="328" width="621"]]
163 163  
... ... @@ -175,18 +175,20 @@
175 175  
176 176  [[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]]
177 177  
178 -=== 4.4.3 LoRaWAN Page ===
179 179  
180 -==== 4.4.3.1 Semtech UDP ====
247 +===== 4.4.3 LoRaWAN Page =====
181 181  
249 +====== 4.4.3.1 Semtech UDP ======
250 +
182 182  [[image:1651744767914-283.png||height="352" width="621"]]
183 183  
184 -Note *: See this instruction for how to configure TTN.
253 + Note *: See this instruction for how to configure TTN.
185 185  
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);"]]
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);"]]
187 187  
188 -==== 4.4.3.2 Basic Station ====
189 189  
258 +====== 4.4.3.2 Basic Station ======
259 +
190 190  [[image:1651744890629-683.png||height="380" width="621"]]
191 191  
192 192  Note *: See this instruction for how to configure TTN.
... ... @@ -193,62 +193,68 @@
193 193  
194 194  [[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]]
195 195  
196 -=== 4.4.4 LogRead ===
197 197  
198 -==== 4.4.4.1 LoRa Log ====
267 +===== 4.4.4 LogRead =====
199 199  
269 +====== 4.4.4.1 LoRa Log ======
270 +
200 200  [[image:1651744955955-452.png||height="571" width="621"]]
201 201  
202 202  Show the frequency for LoRa Radio and traffics.
203 203  
204 -==== 4.4.4.2 System Log ====
205 205  
276 +====== 4.4.4.2 System Log ======
277 +
206 206  Show system log.
207 207  
208 208  [[image:1651745003470-264.png||height="477" width="621"]]
209 209  
210 -==== 4.4.4.3 Record Log ====
211 211  
283 +====== 4.4.4.3 Record Log ======
284 +
212 212  **Record the system log.**
213 213  
214 214  [[image:1651745069814-662.png||height="144" width="621"]]
215 215  
216 -= 5. Install stand alone LoRa Packet Forwarder. =
217 217  
218 -== 5.1 OS requirement ==
290 +=== 5. Install stand alone LoRa Packet Forwarder. ===
219 219  
292 +==== 5.1 OS requirement ====
293 +
220 220  RPI in this example is RPI model 4B with fresh Raspbian OS install.
221 221  
222 -(% class="box" %)
223 -(((
224 - pi@raspberrypi:~~$ cat /etc/os-release
296 + pi@raspberrypi:~~$ cat /etc/os-release
297 +
225 225   PRETTY_NAME="Raspbian GNU/Linux 8 (jessie)"
299 +
226 226   NAME="Raspbian GNU/Linux"
301 +
227 227   VERSION_ID="8"
303 +
228 228   VERSION="8 (jessie)"
305 +
229 229   ID=raspbian
307 +
230 230   ID_LIKE=debian
309 +
231 231   HOME_URL="http:~/~/www.raspbian.org/"
311 +
232 232   SUPPORT_URL="http:~/~/www.raspbian.org/RaspbianForums"
313 +
233 233   BUG_REPORT_URL="http:~/~/www.raspbian.org/RaspbianBugs"
234 -)))
235 235  
236 -== 5.2 Get Gateway ID in Raspberry and input this in TTN v3. ==
237 237  
317 +==== 5.2 Get Gateway ID in Raspberry and input this in TTN v3. ====
318 +
238 238  In RPI, run below command to get a Gateway ID
239 239  
240 -(% class="box infomessage" %)
241 -(((
242 - ifconfig eth0
243 -)))
321 + (% class="mark" %)ifconfig eth0
244 244  
245 245  [[image:1651745210205-512.png||height="130" width="621"]]
246 246  
247 247  (((
248 -(((
249 249  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.
250 250  )))
251 -)))
252 252  
253 253  [[image:1651745267862-321.png||height="526" width="621"]]
254 254  
... ... @@ -258,54 +258,51 @@
258 258  
259 259  [[image:1651745366987-458.png||height="363" width="621"]]
260 260  
261 -=== 5.2.1 Download and install LoRaWAN packet forwarder ===
262 262  
338 +===== 5.2.1 Download and install LoRaWAN packet forwarder =====
339 +
263 263  Enable SPI and I2C first:
264 264  
265 265  a)SPI needs to be enabled on the Raspberry Pi
266 266  
267 -Run (% style="background-color:#dcdcdc" %)**sudo raspi-config**(%%) to open the config window
344 +Run sudo raspi-config to open the config window
268 268  
269 -[[image:1651745476754-240.png||height="234" width="629"]]
346 +[[image:1651745476754-240.png||height="235" width="631"]]
270 270  
271 271  [[image:image-20220505181135-1.png]]
272 272  
273 -[[image:image-20220505181135-2.png||height="229" width="622"]]
350 +[[image:image-20220505181135-2.png]]
274 274  
275 275  In RPI , Fist: Enter root account:
276 276  
277 -(((
278 -[[image:1651745583363-614.png||height="151" width="732"]]
279 -)))
354 +[[image:1651745583363-614.png]]
280 280  
356 +
281 281  and then run:
282 282  
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]]
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]]
284 284  
285 -(% style="background-color:#dcdcdc" %)chmod +x ./auto_install.sh
361 +chmod +x ./auto_install.sh
286 286  
287 -(% style="background-color:#dcdcdc" %)./auto_install.sh
363 +./auto_install.sh
288 288  
289 -(((
290 -[[image:1651745611629-818.png||height="225" width="729"]]
291 -)))
365 +[[image:1651745611629-818.png]]
292 292  
293 293  This will download the packet forwarder package from Dragino Server to RPI, and start install the package.
294 294  
295 295  You can get these output:
296 296  
297 -(((
298 298  [[image:1651745657252-173.png||height="426" width="621"]]
299 -)))
300 300  
301 -=== 5.2.2 Config Gateway ID, Frequency Band and Server address ===
302 302  
374 +===== 5.2.2 Config Gateway ID, Frequency Band and Server address =====
375 +
303 303  (((
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.**
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.**
305 305  )))
306 306  
307 307  (((
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.
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.
309 309  )))
310 310  
311 311  [[image:1651745709709-887.png||height="820" width="621"]]
... ... @@ -314,26 +314,32 @@
314 314  
315 315  [[Server Addresses ~| The Things Stack for LoRaWAN (thethingsindustries.com)>>url:https://www.thethingsindustries.com/docs/getting-started/server-addresses/#deployments]]
316 316  
317 -And the default frequency band is US915 in (% style="color:#0000ff" %)**global_conf.json**(%%) file.
318 318  
391 +And the default frequency band is US915 in **global_conf.json** file.
392 +
319 319  [[image:1651745838008-820.png||height="650" width="621"]]
320 320  
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(%%).**
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.**
322 322  
323 323   1).Chose your need the name of region frequency.
324 324  
325 -[[image:1651745867516-322.png||height="83" width="740"]]
399 +[[image:1651745867516-322.png]]
326 326  
327 327   2). Use this command to copy it.
328 328  
329 329   cp /etc/lora/cfg-302/EU-global_conf.json /etc/lora/global_conf.json
330 330  
331 -[[image:1651745984006-868.png||height="87" width="745"]]
405 +[[image:1651745984006-868.png]]
332 332  
333 -* If user wants to change to other LoRaWAN server, modify the (% style="color:#0000ff" %)**global_conf.json**(%%) file.
407 +* If user wants to change to other LoRaWAN server, modify the **global_conf.json** file.
334 334  
335 -=== 5.2.3 Check result ===
409 +(% class="wikigeneratedid" %)
410 +(((
411 +
412 +)))
336 336  
414 +===== 5.2.3 Check result =====
415 +
337 337  (((
338 338  Run below command to restart the dragino_fwd:
339 339  )))
... ... @@ -361,7 +361,7 @@
361 361  )))
362 362  )))
363 363  
364 -[[image:1651746045057-414.png||height="193" width="729"]]
443 +[[image:1651746045057-414.png]]
365 365  
366 366  The dragino_fwd will start with the new gateway ID and TTN v3 should show the connection ok:
367 367  
... ... @@ -372,68 +372,62 @@
372 372  
373 373  (% class="box infomessage" %)
374 374  (((
375 -*
376 -** sudo journalctl -u draginofwd -f
454 + **// sudo journalctl -u draginofwd -f//**
377 377  )))
378 378  
379 -[[image:1651746111963-838.png||height="184" width="730"]]
457 +[[image:1651746111963-838.png]]
380 380  
381 381   If there are LoRaWAN nodes transmitting nearby, we can see the traffic in TTN v3 –> Gateway ~-~-> Live data
382 382  
461 +
383 383  [[image:1651746139304-966.png||height="326" width="621"]]
384 384  
385 -=== 5.2.4 Commands to handle service ===
386 386  
387 -* (% style="color:#0000ff" %)**Stop** (%%)dragino_fwd service:  sudo systemctl stop draginofwd
388 -* (% style="color:#0000ff" %)**Disable**(%%) dragino_fwd auto run after boot: sudo systemctl disable draginofwd
389 -* (% style="color:#0000ff" %)**Start** (%%)dragino_fwd : sudo systemctl start draginofwd
390 -* (% style="color:#0000ff" %)**Auto run**(%%) dragino_fwd after boot:  sudo systemctl enable draginofwd
391 -* (% style="color:#0000ff" %)**Show status** (%%)of dragino_fwd:  sudo systemctl status draginofwd
465 +===== 5.2.4 Commands to handle service =====
392 392  
393 -= 6. Order Info =
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
394 394  
395 -Part Number: (% style="color:#0000ff" %)**PG1302-XX**   (%%) Or  Part Number: (% style="color:#0000ff" %)**PG1302-PI-XX   **(%%)(Include RPi converter board for RPI 3/4)
473 +=== 6. Order Info ===
396 396  
397 -**~ (% style="color:#0000ff" %)XX:(%%)**
475 +Part Number: **PG1302-XX**  Or  Part Number: **PG1302-PI-XX   **(Include RPi converter board for RPI 3/4)
398 398  
399 -* (% style="color:#0000ff" %)868 (%%)(For Bands: EU868,IN865)
400 -* (% style="color:#0000ff" %)915 (%%)(For Bands: US915,AU915,AS923,KR920)
401 -* (% style="color:#0000ff" %)470 (%%)(For Band: CN470)
477 +**~ XX:**
402 402  
403 -= 7. Packing Info =
479 +* 868 (For Bands: EU868,IN865)
480 +* 915 (For Bands: US915,AU915,AS923,KR920)
481 +* 470 (For Band: CN470)
404 404  
483 +=== 7. Packing Info ===
484 +
405 405  (((
406 406  **PG1302 Package Includes**:
407 407  )))
408 408  
409 409  (((
410 -(((
411 411  * PG1302 x 1
412 -* LoRa Antenna x 1
413 413  )))
414 -)))
415 415  
416 416  (((
417 -**PG1302-PI Package Includes**:
418 -)))
419 -
420 -* PG1302 x 1
421 421  * LoRa Antenna x 1
422 -* RPi3/4 converter PCB
423 -* Screws to hole converter PCB on RPI.
424 -
425 -(((
426 -= 8. Support =
427 -
428 -(((
429 -If you are experiencing issues and can’t solve, you can send mail to
430 430  )))
431 431  
432 432  (((
433 -[[support@dragino.com>>mailto:support@dragino.com]]
498 +**PG1302-PI Package Includes**:
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435 435  
436 -(((
437 -With your question as detail as possible. We will reply and help you in the shortest.
501 +* (((
502 +PG1302 x 1
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504 +* (((
505 +LoRa Antenna x 1
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507 +* (((
508 +RPi3/4 converter PCB
509 +)))
510 +* (((
511 +Screws to hole converter PCB on RPI.
512 +)))
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