Last modified by Xiaoling on 2024/07/31 17:46
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edited by Xiaoling
on 2022/07/22 11:12
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edited by Xiaoling
on 2024/07/31 17:46
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Title
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1 -Add GPS Support in LG308
1 +Add GPS Support in LG308N / LPS8v2
Content
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1 +**Table of Contents：**
2 +
3 +{{toc/}}
4 +
5 +
1 1  (((
2 -= **Introduction ** =
7 += 1. Introduction =
3 3  
4 4  ----
5 5  
6 -It is possible to GPS support in LG308 EC25 version so device will add location info to uplink packet to LoRaWAN server.
11 +It is possible to GPS supports in LG308N-EC25 version and LPS8v2-EC25 version so device will add location info to uplink packet to LoRaWAN server.
7 7  )))
8 8  
9 9  
15 += 2. Connect GPS Antenna to Cellular modules =
16 +
17 +
18 +Connect GNSS port to GPS antenna. The connector type is i-pex connector, please make sure the GPS antenna can be extended outdoor for GPS signal.
19 +
20 +**For LPS8v2:**
21 +
22 +[[image:image-20231208153214-1.png||height="426" width="590"]]
23 +
24 +
25 +**For LG308N:**
26 +
27 +[[image:image-20220527160148-2.png]]
28 +
29 +
30 += 3. Use Cellular Module GPS feature for LoRaWAN Timing. =
31 +
32 +== 3.1 Configure on LG308N / LPS8N ==
33 +
10 10  (((
35 +
36 +
11 11  (% style="color:blue" %)**Below are the steps:**
12 12  )))
13 13  
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15 15  **~1. Open the box and connect GPS antenna to GNSS port of EC25**
16 16  )))
17 17  
18 -[[image:image-20220527160148-2.png]]
19 -
20 -Connect GPS antenna
21 -
22 -
23 -(((
24 24  **2. modify the two files:**
25 -)))
26 26  
27 27  (((
28 28  /etc/chatscripts/3g.chat
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45 45  CONNECT ' '
46 46  )))
47 47  
67 +
48 48  (((
49 -(% style="color:red" %)**Note: After above settings, the GPS will be enable when dial up, if user doesn't use Cellular for Internet access, above script won't execute, in this case, user can run "echo AT+QGPS=1 > /dev/ttyUSB2" to enable GPS /usr/bin/generate-config.sh, after configure this, in the web page, select any frequency band and save to make this take affect.**
69 +(% style="color:red" %)**Note: **(%%)**After above settings, the GPS will be enable when dial up, if user doesn't use Cellular for Internet access, above script won't execute, in this case, user can (% style="color:red" %)run "echo AT+QGPS=1 > /dev/ttyUSB2" (%%)to (% style="color:blue" %)enable GPS /usr/bin/generate-config.sh,(%%) after configure this, in the web page, select any frequency band and save to make this take affect.**
50 50  )))
51 51  
72 +
52 52  (% class="box" %)
53 53  (((
54 54  (((
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77 77  )))
78 78  )))
79 79  
101 +
80 80  (((
81 81  **3. Reboot the device and run logread -f to verify if GPS already works.**
82 82  )))
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96 96  Fri Mar  6 04:09:35 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [up] PUSH_ACK received in 293 ms
97 97  Fri Mar  6 04:09:35 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [down] PULL_ACK received in 596 ms
98 98  )))
121 +
122 +
123 +== 3.2. Configure on LPS8v2 ==
124 +
125 +(((
126 +
127 +
128 +(% style="color:blue" %)**Below are the steps:**
129 +)))
130 +
131 +(((
132 +**~1. Open the box and connect GPS antenna to GNSS port of EC25**
133 +)))
134 +
135 +**2. modify the two files:**
136 +
137 +/etc/rc.local
138 +
139 +(% class="box" %)
140 +(((
141 +#!/bin/sh -e
142 +#
143 +# rc.local
144 +#
145 +# This script is executed at the end of each multiuser runlevel.
146 +# Make sure that the script will "exit 0" on success or any other
147 +# value on error.
148 +#
149 +# In order to enable or disable this script just change the execution
150 +# bits.
151 +#
152 +# By default this script does nothing.
153 +
154 +echo 0 > /sys/class/leds/dragino\:blue\:opt/brightness
155 +echo 0 > /sys/class/leds/dragino\:green\:stat/brightness
156 +echo 0 > /sys/class/leds/dragino\:red\:sys/brightness
157 +(% style="color:red" %)**echo AT+QGPS=1 > /dev/ttyUSB2**
158 +
159 +
160 +exit 0
161 +)))
162 +
163 +(% style="color:red" %)**Note: **(%%) **After above settings, LPS8v2 will (% style="color:blue" %)enable GPS(%%) automatically on boot.**
164 +
165 +
166 +**The user can run (% style="color:red" %)"echo AT+QGPS=1 > /dev/ttyUSB2" (%%)to manually (% style="color:blue" %)enable GPS.(%%)**
167 +
168 +**/usr/local/dragino/generate-config.sh, after configuring this, on the web page, select any frequency band and save to make this take effect.**
169 +
170 +(% class="box" %)
171 +(((
172 +gen_gw_cfg() {
173 + json_init
174 + json_add_object gateway_conf
175 + json_add_string "platform" "SX1$chip"
176 + json_add_string "description" "Dragino LoRaWAN Gateway"
177 + json_add_string "gateway_ID" "$gwid"
178 + json_add_boolean "radiostream_enable" 1
179 + json_add_string "ghost_host" "localhost"
180 + json_add_string "ghost_port" "1760"
181 + json_add_boolean "manage_enable" 0
182 + json_add_boolean "custom_downlink" 0
183 + json_add_int "stat_interval" "30"
184 + json_add_boolean "wd_enable" 1
185 + json_add_boolean "mac_decode" 0
186 + json_add_boolean "mac2file" 0
187 + json_add_boolean "mac2db" 0
188 + json_add_string "log_mask" "1111"
189 + (% style="color:red" %)**json_add_string "gps_tty_path" "/dev/ttyUSB1"   ~-~-~-~--> Add this line so lora program knows to get the gps info from EC25**(%%)
190 + json_add_double "ref_latitude" "$latitude"
191 + json_add_double "ref_longitude" "$longitude"
192 + json_add_double "ref_altitude" "$altitude"
193 + json_add_int "beacon_period" "0"
194 + json_add_int "beacon_freq_hz" "869525000"
195 +)))
196 +
197 +**3. Reboot the device and run journalctl -u draginofwd -f to verify if GPS already works.**
198 +
199 +[[image:image-20231208160114-2.png||height="288" width="907"]]
200 +
201 +
202 +[[image:image-20231208161058-5.png||height="548" width="965"]]
203 +
204 +
205 += 4. Use Cellular Module GPS feature for System Timing. =
206 +
207 +== 4.1 Configure on LPS8v2 ==
208 +
209 +
210 +This introduction shows how to use the Cellular Module GPS feature for System Timing.
211 +
212 +
213 +1. Download script from dragino site and move it to properly directory
214 +
215 +(% class="box" %)
216 +(((
217 +root@dragino-e4e891:# wget http://repo.dragino.com/release/tool/gpstime/gpstodate.sh
218 +2023-12-21 07:25:25 http://repo.dragino.com/release/tool/gpstime/gpstodate.sh
219 +Resolving repo.dragino.com (repo.dragino.com)... 47.89.8.92
220 +Connecting to repo.dragino.com (repo.dragino.com)|47.89.8.92|:80... connected.
221 +HTTP request sent, awaiting response... 200 OK
222 +Length: 1114 (1.1K) [application/octet-stream]
223 +Saving to: ‘gpstodate.sh’
224 +
225 +gpstodate.sh 100%[===========================================================================================================>] 1.09K .-KB/s in 0s     
226 +
227 +2023-12-21 07:25:25 (16.5 MB/s) - ‘gpstodate.sh’ saved [1114/1114]
228 +
229 +root@dragino-e4e891:# chmod +x gpstodate.sh;mv gpstodate.sh /usr/bin/
230 +root@dragino-e4e891:#
231 +)))
232 +
233 +2. Run **cat /dev/ttyUSB1** to check if the GPS location is successful.
234 +
235 +[[image:image-20231221153129-1.png||height="440" width="632"]]
236 +
237 +
238 +3. Run the **date** and  **/usr/bin/gpstodate.sh** **&** to check if the system time is correct
239 +
240 +
241 +4. Add **gpstodate.sh** to cron work **/etc/rc.local** , LPS8v2 will Use Cellular Module GPS feature for System Timing automatically on boot
242 +
243 +(% class="box" %)
244 +(((
245 +#!/bin/sh -e
246 +#
247 +# rc.local
248 +#
249 +# This script is executed at the end of each multiuser runlevel.
250 +# Make sure that the script will "exit 0" on success or any other
251 +# value on error.
252 +#
253 +# In order to enable or disable this script just change the execution
254 +# bits.
255 +#
256 +# By default this script does nothing.
257 +
258 +echo 0 > /sys/class/leds/dragino\:blue\:opt/brightness
259 +echo 0 > /sys/class/leds/dragino\:green\:stat/brightness
260 +echo 0 > /sys/class/leds/dragino\:red\:sys/brightness
261 +(% style="color:red" %)**echo AT+QGPS=1 > /dev/ttyUSB2**(%%)
262 +(% style="color:red" %)**/usr/bin/gpstodate.sh**
263 +
264 +exit 0
265 +)))
266 +
267 +
268 += 5. Use external GPS module =
269 +
270 +
271 +
272 +== 5.1 Set up for LoRaWAN Time ==
273 +
274 +== 5.2 Set up for System Time ==
275 +
276 +
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