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12	12	)))
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15		-= 2. Add GPS support on LG308N =
	15	+= 2. Use Cellular Module GPS feature for LoRaWAN Timing. =
16	16
	17	+== 2.1 Configure on LG308N / LPS8N ==
	18	+
17	17	(((
18	18	(% style="color:blue" %)**Below are the steps:**
19	19	)))
...	...	@@ -108,6 +108,125 @@
108	108	)))
109	109
110	110
111		-= 3. Add GPS support on LPS8v2 =
	113	+== 2.2. Configure on LPS8v2 ==
112	112
	115	+(((
	116	+(% style="color:blue" %)**Below are the steps:**
	117	+)))
	118	+
	119	+(((
	120	+**~1. Open the box and connect GPS antenna to GNSS port of EC25**
	121	+)))
	122	+
	123	+[[image:image-20231208153214-1.png||height="426" width="590"]]
	124	+
	125	+Connect GPS antenna
	126	+
	127	+
	128	+**2. modify the two files:**
	129	+
	130	+/etc/rc.local
	131	+
	132	+(% class="box" %)
	133	+(((
	134	+#!/bin/sh -e
	135	+#
	136	+# rc.local
	137	+#
	138	+# This script is executed at the end of each multiuser runlevel.
	139	+# Make sure that the script will "exit 0" on success or any other
	140	+# value on error.
	141	+#
	142	+# In order to enable or disable this script just change the execution
	143	+# bits.
	144	+#
	145	+# By default this script does nothing.
	146	+
	147	+echo 0 > /sys/class/leds/dragino\:blue\:opt/brightness
	148	+echo 0 > /sys/class/leds/dragino\:green\:stat/brightness
	149	+echo 0 > /sys/class/leds/dragino\:red\:sys/brightness
	150	+(% style="color:red" %)**echo AT+QGPS=1 > /dev/ttyUSB2**
	151	+
	152	+
	153	+exit 0
	154	+)))
	155	+
	156	+(% style="color:red" %)**Note: **(%%) **After above settings, LPS8v2 will (% style="color:blue" %)enable GPS(%%) automatically on boot.**
	157	+
	158	+
	159	+**The user can run (% style="color:red" %)"echo AT+QGPS=1 > /dev/ttyUSB2" (%%)to manually (% style="color:blue" %)enable GPS.(%%)**
	160	+
	161	+**/usr/local/dragino/generate-config.sh, after configuring this, on the web page, select any frequency band and save to make this take effect.**
	162	+
	163	+(% class="box" %)
	164	+(((
	165	+gen_gw_cfg() {
	166	+ json_init
	167	+ json_add_object gateway_conf
	168	+ json_add_string "platform" "SX1$chip"
	169	+ json_add_string "description" "Dragino LoRaWAN Gateway"
	170	+ json_add_string "gateway_ID" "$gwid"
	171	+ json_add_boolean "radiostream_enable" 1
	172	+ json_add_string "ghost_host" "localhost"
	173	+ json_add_string "ghost_port" "1760"
	174	+ json_add_boolean "manage_enable" 0
	175	+ json_add_boolean "custom_downlink" 0
	176	+ json_add_int "stat_interval" "30"
	177	+ json_add_boolean "wd_enable" 1
	178	+ json_add_boolean "mac_decode" 0
	179	+ json_add_boolean "mac2file" 0
	180	+ json_add_boolean "mac2db" 0
	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**(%%)
	183	+ json_add_double "ref_latitude" "$latitude"
	184	+ json_add_double "ref_longitude" "$longitude"
	185	+ json_add_double "ref_altitude" "$altitude"
	186	+ json_add_int "beacon_period" "0"
	187	+ json_add_int "beacon_freq_hz" "869525000"
	188	+)))
	189	+
	190	+**3. Reboot the device and run journalctl -u draginofwd -f to verify if GPS already works.**
	191	+
	192	+[[image:image-20231208160114-2.png||height="288" width="907"]]
	193	+
	194	+
	195	+[[image:image-20231208161058-5.png||height="548" width="965"]]
	196	+
	197	+
	198	+
	199	+= 3. Use Cellular Module GPS feature for System Timing. =
	200	+
	201	+== 3.1 Configure on LPS8v2 ==
	202	+
	203	+This introduction shows how to use the Cellular Module GPS feature for System Timing.
	204	+
	205	+
	206	+1. Download script from dragino site and move it to properly directory
	207	+
	208	+(% class="box infomessage" %)
	209	+(((
	210	+root@dragino-e4e891:# wget http://repo.dragino.com/release/tool/gpstime/gpstodate.sh
	211	+2023-12-21 07:25:25 http://repo.dragino.com/release/tool/gpstime/gpstodate.sh
	212	+Resolving repo.dragino.com (repo.dragino.com)... 47.89.8.92
	213	+Connecting to repo.dragino.com (repo.dragino.com)|47.89.8.92|:80... connected.
	214	+HTTP request sent, awaiting response... 200 OK
	215	+Length: 1114 (1.1K) [application/octet-stream]
	216	+Saving to: ‘gpstodate.sh’
	217	+
	218	+gpstodate.sh 100%[===========================================================================================================>] 1.09K .-KB/s in 0s
	219	+
	220	+2023-12-21 07:25:25 (16.5 MB/s) - ‘gpstodate.sh’ saved [1114/1114]
	221	+
	222	+root@dragino-e4e891:# chmod +x gpstodate.sh;mv gpstodate.sh /usr/bin/
	223	+root@dragino-e4e891:#
	224	+)))
	225	+
	226	+2. Run **cat /dev/ttyUSB1** to check if the GPS location is successful.
	227	+
	228	+[[image:image-20231221153129-1.png||height="440" width="632"]]
	229	+
	230	+
	231	+3. Run the **date** and  **/usr/bin/gpstodate.sh** **&** to check if the system time is correct
	232	+
	233	+
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