Wiki source code of Add GPS Support in LG308N / LPS8v2
Version 19.1 by Kilight Cao on 2023/12/21 15:31
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author | version | line-number | content |
---|---|---|---|
9.1 | 1 | **Table of Contents:** | |
2 | |||
3 | {{toc/}} | ||
4 | |||
5 | |||
1.8 | 6 | ((( | |
9.1 | 7 | = 1. Introduction = | |
5.2 | 8 | ||
9 | ---- | ||
10 | |||
8.1 | 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. | |
1.8 | 12 | ))) | |
1.1 | 13 | ||
5.2 | 14 | ||
18.1 | 15 | = 2. Use Cellular Module GPS feature for LoRaWAN Timing. = | |
8.1 | 16 | ||
18.1 | 17 | == 2.1 Configure on LG308N / LPS8N == | |
18 | |||
1.8 | 19 | ((( | |
5.2 | 20 | (% style="color:blue" %)**Below are the steps:** | |
1.8 | 21 | ))) | |
1.1 | 22 | ||
1.8 | 23 | ((( | |
5.2 | 24 | **~1. Open the box and connect GPS antenna to GNSS port of EC25** | |
1.8 | 25 | ))) | |
1.1 | 26 | ||
4.1 | 27 | [[image:image-20220527160148-2.png]] | |
1.1 | 28 | ||
1.2 | 29 | Connect GPS antenna | |
1.1 | 30 | ||
5.2 | 31 | ||
1.9 | 32 | ((( | |
5.2 | 33 | **2. modify the two files:** | |
1.9 | 34 | ))) | |
1.1 | 35 | ||
1.9 | 36 | ((( | |
1.2 | 37 | /etc/chatscripts/3g.chat | |
1.9 | 38 | ))) | |
1.1 | 39 | ||
1.3 | 40 | (% class="box" %) | |
41 | ((( | ||
42 | ABORT BUSY | ||
43 | ABORT 'NO CARRIER' | ||
44 | ABORT ERROR | ||
45 | REPORT CONNECT | ||
1.2 | 46 | TIMEOUT 10 | |
1.3 | 47 | "" "AT&F" | |
48 | OK "ATE1" | ||
4.1 | 49 | (% style="color:red" %)**OK "AT+QGPS=1" ~-~-> Add this line, so EC25 module GPS will be enable when dial up**(%%) | |
1.3 | 50 | (% style="color:black" %)OK 'AT+CGDCONT=1,"IP","$USE_APN"' | |
51 | SAY "Calling UMTS/GPRS" | ||
1.2 | 52 | TIMEOUT 30 | |
1.3 | 53 | OK "ATD$DIALNUMBER" | |
1.2 | 54 | CONNECT ' ' | |
1.3 | 55 | ))) | |
1.1 | 56 | ||
7.2 | 57 | ||
1.8 | 58 | ((( | |
6.2 | 59 | (% 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.** | |
1.8 | 60 | ))) | |
1.1 | 61 | ||
7.2 | 62 | ||
1.3 | 63 | (% class="box" %) | |
64 | ((( | ||
1.9 | 65 | ((( | |
4.2 | 66 | ((( | |
1.3 | 67 | gen_gw_cfg() { | |
1.2 | 68 | json_init | |
69 | json_add_object gateway_conf | ||
70 | json_add_string "gateway_ID" "$gwid" | ||
71 | json_add_string "server_address" "$server" | ||
72 | json_add_int "serv_port_up" "$upp" | ||
73 | json_add_int "serv_port_down" "$dpp" | ||
74 | json_add_int "stat_interval" "$stat" | ||
75 | json_add_boolean "forward_crc_valid" 1 | ||
76 | json_add_boolean "forward_crc_error" 0 | ||
4.2 | 77 | ))) | |
78 | |||
79 | ((( | ||
80 | (% 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** | ||
81 | ))) | ||
82 | |||
83 | ((( | ||
1.8 | 84 | (% style="color:black" %) json_close_object | |
4.2 | 85 | json_dump > /etc/lora/local_conf.json(%%) | |
86 | (% style="color:black" %)**}** | ||
1.3 | 87 | ))) | |
1.9 | 88 | ))) | |
4.2 | 89 | ))) | |
1.1 | 90 | ||
7.2 | 91 | ||
1.8 | 92 | ((( | |
5.2 | 93 | **3. Reboot the device and run logread -f to verify if GPS already works.** | |
1.8 | 94 | ))) | |
1.1 | 95 | ||
1.3 | 96 | (% class="box" %) | |
97 | ((( | ||
4.3 | 98 | Fri Mar 6 04:08:59 2020 daemon.info lora_pkt_fwd[3016]: (% style="color:red" %)**INFO~~ GPS serial port path is configured to "/dev/ttyUSB1"**(%%) | |
1.3 | 99 | Fri Mar 6 04:08:59 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [main] TTY port /dev/ttyUSB1 open for GPS synchronization | |
100 | Fri Mar 6 04:09:00 2020 cron.err crond[1689]: time disparity of 4301528 minutes detected | ||
101 | Fri Mar 6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ sockfd=4 | ||
102 | Fri Mar 6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ sockfd=5 | ||
103 | Fri Mar 6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ FPort Filter: 0 | ||
104 | Fri Mar 6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ DevAddrMask: 0x0 | ||
105 | Fri Mar 6 04:09:34 2020 daemon.info lora_pkt_fwd[3016]: INFO: [jit] queue is empty | ||
4.3 | 106 | Fri Mar 6 04:09:34 2020 daemon.info lora_pkt_fwd[3016]: STAT~~ {"stat":{"time":"2020-03-06 04:09:34 UTC"**,(% style="color:red" %)"lati":22.70627,"long":114.24277,"alti":58,(%%)** | |
1.3 | 107 | (% style="color:black" %)"rxnb":0,"rxok":0,"rxfw":0,"ackr":0.0,"dwnb":0,"txnb":0}} | |
108 | Fri Mar 6 04:09:35 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [up] PUSH_ACK received in 293 ms | ||
109 | Fri Mar 6 04:09:35 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [down] PULL_ACK received in 596 ms | ||
110 | ))) | ||
8.1 | 111 | ||
112 | |||
18.1 | 113 | == 2.2. Configure on LPS8v2 == | |
8.1 | 114 | ||
16.1 | 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 | |||
17.1 | 156 | (% style="color:red" %)**Note: **(%%) **After above settings, LPS8v2 will (% style="color:blue" %)enable GPS(%%) automatically on boot.** | |
16.1 | 157 | ||
158 | |||
17.1 | 159 | **The user can run (% style="color:red" %)"echo AT+QGPS=1 > /dev/ttyUSB2" (%%)to manually (% style="color:blue" %)enable GPS.(%%)** | |
16.1 | 160 | ||
17.1 | 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.** | |
16.1 | 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" "$gwid" | ||
171 | json_add_boolean "radiostream_enable" 1 | ||
172 | json_add_string "ghost_host" "localhost" | ||
173 | json_add_string "ghost_port" "1760" | ||
174 | json_add_boolean "manage_enable" 0 | ||
175 | json_add_boolean "custom_downlink" 0 | ||
176 | json_add_int "stat_interval" "30" | ||
177 | json_add_boolean "wd_enable" 1 | ||
178 | json_add_boolean "mac_decode" 0 | ||
179 | json_add_boolean "mac2file" 0 | ||
180 | json_add_boolean "mac2db" 0 | ||
181 | json_add_string "log_mask" "1111" | ||
18.1 | 182 | (% style="color:red" %)**json_add_string "gps_tty_path" "/dev/ttyUSB1" ~-~-~-~--> Add this line so lora program knows to get the gps info from EC25**(%%) | |
16.1 | 183 | json_add_double "ref_latitude" "$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 | |||
18.1 | 198 | ||
199 | = 3. Use Cellular Module GPS feature for System Timing. = | ||
200 | |||
201 | == 3.1 Configure on LPS8v2 == | ||
202 | |||
8.1 | 203 |