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1		-XWiki.Xiaoling
	1	+XWiki.Edwin

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12	12	)))
13	13
14	14
15		-= 2. Connect GPS Antenna to Cellular modules =
	15	+= 2. Use Cellular Module GPS feature for LoRaWAN Timing. =
16	16
	17	+== 2.1 Configure on LG308N / LPS8N ==
17	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		-
34	34	(((
35		-
36		-
37	37	(% style="color:blue" %)**Below are the steps:**
38	38	)))
39	39
...	...	@@ -41,7 +41,14 @@
41	41	**~1. Open the box and connect GPS antenna to GNSS port of EC25**
42	42	)))
43	43
	27	+[[image:image-20220527160148-2.png]]
	28	+
	29	+Connect GPS antenna
	30	+
	31	+
	32	+(((
44	44	**2. modify the two files:**
	34	+)))
45	45
46	46	(((
47	47	/etc/chatscripts/3g.chat
...	...	@@ -120,11 +120,9 @@
120	120	)))
121	121
122	122
123		-== 3.2. Configure on LPS8v2 ==
	113	+== 2.2. Configure on LPS8v2 ==
124	124
125	125	(((
126		-
127		-
128	128	(% style="color:blue" %)**Below are the steps:**
129	129	)))
130	130
...	...	@@ -132,6 +132,11 @@
132	132	**~1. Open the box and connect GPS antenna to GNSS port of EC25**
133	133	)))
134	134
	123	+[[image:image-20231208153214-1.png||height="426" width="590"]]
	124	+
	125	+Connect GPS antenna
	126	+
	127	+
135	135	**2. modify the two files:**
136	136
137	137	/etc/rc.local
...	...	@@ -186,7 +186,7 @@
186	186	json_add_boolean "mac2file" 0
187	187	json_add_boolean "mac2db" 0
188	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**(%%)
	182	+ (% 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	190	json_add_double "ref_latitude" "$latitude"
191	191	json_add_double "ref_longitude" "$longitude"
192	192	json_add_double "ref_altitude" "$altitude"
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202	202	[[image:image-20231208161058-5.png||height="548" width="965"]]
203	203
204	204
205		-= 4. Use Cellular Module GPS feature for System Timing. =
206	206
207		-== 4.1 Configure on LPS8v2 ==
	199	+= 3. Use Cellular Module GPS feature for System Timing. =
208	208
	201	+== 3.1 Configure on LPS8v2 ==
209	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	276

image-20231221153129-1.png

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