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...	...	@@ -12,10 +12,24 @@
12	12	)))
13	13
14	14
15		-= 2. Use Cellular Module GPS feature for LoRaWAN Timing. =
	15	+== 2. Connect GPS Antenna to Cellular modules ==
16	16
17		-== 2.1 Configure on LG308N / LPS8N ==
	17	+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.
18	18
	19	+**For LPS8v2:**
	20	+
	21	+[[image:image-20231208153214-1.png||height="426" width="590"]]
	22	+
	23	+
	24	+**For LG308N:**
	25	+
	26	+[[image:image-20220527160148-2.png]]
	27	+
	28	+
	29	+= 3. Use Cellular Module GPS feature for LoRaWAN Timing. =
	30	+
	31	+== 3.1 Configure on LG308N / LPS8N ==
	32	+
19	19	(((
20	20	(% style="color:blue" %)**Below are the steps:**
21	21	)))
...	...	@@ -24,14 +24,7 @@
24	24	**~1. Open the box and connect GPS antenna to GNSS port of EC25**
25	25	)))
26	26
27		-[[image:image-20220527160148-2.png]]
28		-
29		-Connect GPS antenna
30		-
31		-
32		-(((
33	33	**2. modify the two files:**
34		-)))
35	35
36	36	(((
37	37	/etc/chatscripts/3g.chat
...	...	@@ -110,7 +110,7 @@
110	110	)))
111	111
112	112
113		-== 2.2. Configure on LPS8v2 ==
	120	+== 3.2. Configure on LPS8v2 ==
114	114
115	115	(((
116	116	(% style="color:blue" %)**Below are the steps:**
...	...	@@ -120,11 +120,6 @@
120	120	**~1. Open the box and connect GPS antenna to GNSS port of EC25**
121	121	)))
122	122
123		-[[image:image-20231208153214-1.png||height="426" width="590"]]
124		-
125		-Connect GPS antenna
126		-
127		-
128	128	**2. modify the two files:**
129	129
130	130	/etc/rc.local
...	...	@@ -179,7 +179,7 @@
179	179	json_add_boolean "mac2file" 0
180	180	json_add_boolean "mac2db" 0
181	181	json_add_string "log_mask" "1111"
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**(%%)
	184	+ (% 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**(%%)
183	183	json_add_double "ref_latitude" "$latitude"
184	184	json_add_double "ref_longitude" "$longitude"
185	185	json_add_double "ref_altitude" "$altitude"
...	...	@@ -196,8 +196,63 @@
196	196
197	197
198	198
199		-= 3. Use Cellular Module GPS feature for System Timing. =
	201	+= 4. Use Cellular Module GPS feature for System Timing. =
200	200
201		-== 3.1 Configure on LPS8v2 ==
	203	+== 4.1 Configure on LPS8v2 ==
202	202
203		-
	205	+This introduction shows how to use the Cellular Module GPS feature for System Timing.
	206	+
	207	+
	208	+1. Download script from dragino site and move it to properly directory
	209	+
	210	+(% class="box" %)
	211	+(((
	212	+root@dragino-e4e891:# wget http://repo.dragino.com/release/tool/gpstime/gpstodate.sh
	213	+2023-12-21 07:25:25 http://repo.dragino.com/release/tool/gpstime/gpstodate.sh
	214	+Resolving repo.dragino.com (repo.dragino.com)... 47.89.8.92
	215	+Connecting to repo.dragino.com (repo.dragino.com)|47.89.8.92|:80... connected.
	216	+HTTP request sent, awaiting response... 200 OK
	217	+Length: 1114 (1.1K) [application/octet-stream]
	218	+Saving to: ‘gpstodate.sh’
	219	+
	220	+gpstodate.sh 100%[===========================================================================================================>] 1.09K .-KB/s in 0s
	221	+
	222	+2023-12-21 07:25:25 (16.5 MB/s) - ‘gpstodate.sh’ saved [1114/1114]
	223	+
	224	+root@dragino-e4e891:# chmod +x gpstodate.sh;mv gpstodate.sh /usr/bin/
	225	+root@dragino-e4e891:#
	226	+)))
	227	+
	228	+2. Run **cat /dev/ttyUSB1** to check if the GPS location is successful.
	229	+
	230	+[[image:image-20231221153129-1.png||height="440" width="632"]]
	231	+
	232	+
	233	+3. Run the **date** and  **/usr/bin/gpstodate.sh** **&** to check if the system time is correct
	234	+
	235	+
	236	+4. Add **gpstodate.sh** to cron work **/etc/rc.local** , LPS8v2 will Use Cellular Module GPS feature for System Timing automatically on boot
	237	+
	238	+(% class="box" %)
	239	+(((
	240	+#!/bin/sh -e
	241	+#
	242	+# rc.local
	243	+#
	244	+# This script is executed at the end of each multiuser runlevel.
	245	+# Make sure that the script will "exit 0" on success or any other
	246	+# value on error.
	247	+#
	248	+# In order to enable or disable this script just change the execution
	249	+# bits.
	250	+#
	251	+# By default this script does nothing.
	252	+
	253	+echo 0 > /sys/class/leds/dragino\:blue\:opt/brightness
	254	+echo 0 > /sys/class/leds/dragino\:green\:stat/brightness
	255	+echo 0 > /sys/class/leds/dragino\:red\:sys/brightness
	256	+(% style="color:red" %)**echo AT+QGPS=1 > /dev/ttyUSB2**(%%)
	257	+(% style="color:red" %)**/usr/bin/gpstodate.sh**
	258	+
	259	+exit 0
	260	+)))

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