Last modified by Xiaoling on 2023/04/20 18:14
<
From version < 1.6 >
edited by Xiaoling
on 2022/05/12 17:52
To version < 17.1 >
edited by Xiaoling
on 2022/07/22 11:51
>
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Summary

Details

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Content
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1 - **Contents:**
1 +**Table of Contents:**
2 2  
3 3  {{toc/}}
4 4  
5 5  
6 +
6 6  = 1. Introduction =
7 7  
9 +
8 8  The Dragino LoRaWAN gateway can commuicate with LoRaWAN ABP End Node without the need of LoRaWAN server. It can be used in some cases such as:
9 9  
10 10  * No internet connection.
11 -* User wants to get data forward in gateway and forward to their server base on MQTT/HTTP, etc. (Combine ABP communication method and [[MQTT forward together>>url:https://wiki.dragino.com/index.php/MQTT_Forward_Instruction]]).
13 +* User wants to get data forward in gateway and forward to their server base on MQTT/HTTP, etc. (Combine ABP communication method and [[MQTT forward together>>MQTT Forward Instruction]]).
12 12  
15 +(((
16 +The basic of this feature is the decoding of (% style="color:red" %)**LoRaWAN ABP End Node**(%%). Requirements:
17 +)))
13 13  
14 -The basic of this feature is the decoding of LoRaWAN ABP End Node. Requirements:
15 -
16 16  1. LoRaWAN End Node in ABP mode. Make sure your end node works in this mode. End node most are default set to OTAA mode
17 17  1. LoRaWAN Gateway model: [[LPS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/148-lps8.html]], [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]], [[DLOS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/160-dlos8.html]] ,[[LIG16>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/171-lig16.html]]
18 -1. Firmware version for below instruction:[[Since LG02_LG08~~-~~-build-v5.4.1593400722-20200629-1120>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]]
21 +1. Firmware version for below instruction:**[[(% style="color:purple" %)Since LG02_LG08~~-~~-build-v5.4.1593400722-20200629-1120>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]](%%)**
19 19  
20 20  
24 +
21 21  = 2. How it works =
22 22  
23 23  
24 -Video Instruction: [[https:~~/~~/youtu.be/ZBjXwmp7rwM>>url:https://youtu.be/ZBjXwmp7rwM]]
28 +(% style="color:#037691" %)**Video Instruction**(%%): **[[https:~~/~~/youtu.be/ZBjXwmp7rwM>>url:https://youtu.be/ZBjXwmp7rwM]]**
25 25  
30 +
26 26  Assume we have the LoRaWAN tracker LGT92 which works in ABP mode and US915 band. It has below keys:
27 27  
28 -{{{AT+NWKSKEY=72 32 63 95 dd 8f e2 b2 13 66 e4 35 93 8f 55 df
33 +(% class="box infomessage" %)
34 +(((
35 +**AT+NWKSKEY=72 32 63 95 dd 8f e2 b2 13 66 e4 35 93 8f 55 df
29 29  AT+APPSKEY=b3 17 f8 14 7a 43 27 8a 6a 31 c4 47 3d 55 5d 33
30 -AT+DADDR=2602111D
31 -}}}
37 +AT+DADDR=2602111D**
38 +)))
32 32  
40 +(((
33 33  and we have the LG308 works and US915 band and support ABP decryption. User can input these keys in LG308 so the LG308 can communicate with LGT92.
34 34  
43 +
44 +)))
45 +
35 35  We need to input above keys in LG308 and enable ABP decryption.
36 36  
37 -[[image:https://wiki.dragino.com/images/thumb/5/55/LG308_MQTT_1.png/600px-LG308_MQTT_1.png||height="329" width="600"]]
48 +[[image:image-20220527161119-1.png]]
38 38  
39 39  Input the ABP keys in LG308
40 40  
... ... @@ -41,84 +41,110 @@
41 41  
42 42  == 2.1 Upstream ==
43 43  
55 +
44 44  Now when this End Node (Dev Addr=2602111D) send a uplink packet. When this packet arrive LG308, LG308 will decode it and put the decode data on the file /var/iot/channels/2602111D . So we have this data for further process with other applications in LG308.
45 45  
58 +(((
46 46  We can see the log of LG308 to know this packet arrive
60 +)))
47 47  
48 -[[image:https://wiki.dragino.com/images/thumb/1/16/ABP_DECODE_2.png/600px-ABP_DECODE_2.png||height="205" width="600"]]
62 +[[image:image-20220527161149-2.png]]
49 49  
50 -LG308 log by "logread -f" command
64 +LG308 log by "(% style="color:red" %)**logread -f**" (%%)command
51 51  
52 52  
53 53  The data of End Node is stored in the file /var/iot/channels/2602111D. We can use hexdump command to check it.
54 54  
55 -{{{root@dragino-1d25dc:~# hexdump /var/iot/channels/2602111D
56 -0000000 4646 4646 4646 3946 3030 3030 3030 3546 --> Got RSSI and SNR
57 -0000010 cc0c 0b63 0266 017f ff7f ff00 --> Payload
69 +(% class="box" %)
70 +(((
71 +root@dragino-1d25dc:~~# hexdump /var/iot/channels/2602111D
72 +0000000 (% style="color:#037691" %)**4646 4646 4646 3946 3030 3030 3030 3546**(%%)      ~-~-> Got RSSI and SNR    
73 +0000010 (% style="color:#037691" %)**cc0c 0b63 0266 017f ff7f ff00 **(%%) ~-~-> Payload
58 58  000001c
59 -}}}
75 +)))
60 60  
61 -* RSSI: 4646 4646 4646 3946 = 0xFFFF FF9F : So RSSI = (0xFFFF FF9F - 0x100000000) = -97
62 -* SNR: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
63 -* Payload: 0xcc0c 0b63 0266 017f ff7f ff00
77 +* **RSSI**: 4646 4646 4646 3946 = 0xFFFF FF9F : So RSSI = (0xFFFF FF9F - 0x100000000) = -97
78 +* **SNR**: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
79 +* **Payload**: 0xcc0c 0b63 0266 017f ff7f ff00
64 64  
65 65  
66 -{{{Notice 1: The data file stored in LG308 for the end node is bin file. If the end node sends ASCII string to gateway, the output will as below:
67 -in LGT92, use AT+SEND=12:hello world to send ASCII string
68 -root@dragino-1d25dc:~# hexdump /var/iot/channels/2602111D
82 +
83 +(% class="box" %)
84 +(((
85 +(% style="color:red" %)**Notice 1**(%%): The data file stored in LG308 for the end node is bin file. If the end node sends ASCII string to gateway, the output will as below:
86 +in LGT92, use (% style="color:#037691" %)**AT+SEND=12:hello world** (%%)to send ASCII string
87 +root@dragino-1d25dc:~~# hexdump /var/iot/channels/2602111D
69 69  0000000 4646 4646 4646 3946 3030 3030 3030 3546
70 -0000010 6865 6c6c 6f20 776f 726c 6400 --> Got ASCII code "hello world"
89 +0000010 6865 6c6c 6f20 776f 726c 6400      ~-~-> Got ASCII code "hello world"    
71 71  000001c
72 -}}}
91 +)))
73 73  
74 -{{{Notice 2: The upstream payload length should match the LoRaWAN length requirement (max length depends on Frequency and DR), otherwise the gateway can't decode the payload.
75 -}}}
93 +(% class="box" %)
94 +(((
95 +(% style="color:red" %)**Notice 2**(%%): The upstream payload length should match the LoRaWAN length requirement (max length depends on Frequency and DR), otherwise the gateway can't decode the payload.
96 +)))
76 76  
98 +
77 77  === 2.2.1 Decode Method ===
78 78  
79 -The decode methods: ASCII String, Decode_LHT65 doesn't affect how the sensor data is stored, they are to define how should the sensor data to be sent.
80 80  
102 +The decode methods: (% style="color:#037691" %)**ASCII String, Decode_LHT65**(%%) doesn't affect how the sensor data is stored, they are to define how should the sensor data to be sent.
103 +
81 81  For example we have a LHT65 , works in ABP mode and gateway successful get the data, which are:
82 82  
83 -{{{root@dragino-1baf44:~# hexdump /var/iot/channels/01826108
106 +(% class="box" %)
107 +(((
108 +root@dragino-1baf44:~~# hexdump /var/iot/channels/01826108
84 84  0000000 4646 4646 4646 4537 3030 3030 3030 3438
85 -0000010 ccd1 7fff 7fff 017f ff7f ff00
110 +0000010 ccd1 7fff 7fff 017f ff7f ff00         
86 86  000001c
87 -}}}
112 +)))
88 88  
114 +
89 89  If we choose ASCII decoder, the MQTT process will send out with mqtt-data:
90 90  
91 -{{{Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
117 +(% class="box" %)
118 +(((
119 +Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
92 92  Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:decoder: ASCII
93 -Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: ffffffe700000048ccd17fff7fff017fff7fff00
94 -}}}
121 +Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: (% style="color:#037691" %)**ffffffe700000048ccd17fff7fff017fff7fff00**
122 +)))
95 95  
124 +
96 96  If we choose Decode_LHT65, the MQTT process will send out with mqtt-data
97 97  
98 -{{{Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
127 +(% class="box" %)
128 +(((
129 +Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
99 99  Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:decoder: Dragino_LHT65
100 -Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: {"Hum_SHT":32.7,"BatV":3.281,"TempC_DS":32.9,
101 -"EXT":"Temperature Sensor","RSSI":-24,"TempC_SHT":85.0,"SNR":8.2,"ext_sensor":0}
102 -}}}
131 +Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]:** (% style="color:#037691" %){"Hum_SHT":32.7,"BatV":3.281,"TempC_DS":32.9,
132 +"EXT":"Temperature Sensor","RSSI":-24,"TempC_SHT":85.0,"SNR":8.2,"ext_sensor":0}(%%)**
133 +)))
103 103  
104 104  Above scripts are store in /etc/lora/decoder/. User can put their scripts here and select it in the UI.
105 105  
106 106  
138 +
107 107  === 2.2.2 How to Decode My End Node ===
108 108  
109 -1/ Configure the ABP keys for your end node in the gateway. enable ABP decode in Web UI
110 110  
111 -2/ Don't choose MQTT service, use LoRaWAN.
142 +**1.** Configure the ABP keys for your end node in the gateway. enable ABP decode in Web UI
112 112  
113 -3/ When your end node send a message to the gateway, there will be a file store in /var/iot/channels. full path should be /var/iot/channels/END_NODE_DEV_ADDR
144 +**2. **Don't choose MQTT service, use LoRaWAN.
114 114  
115 -4/ Use the /etc/lora/decoder/Dragino_LHT65 as template to decode your payload. This script is written in Lua language. User can manually call this script when you see the data file in /var/iot/channels by running:
146 +**3.** When your end node send a message to the gateway, there will be a file store in /var/iot/channels. full path should be /var/iot/channels/END_NODE_DEV_ADDR
116 116  
148 +**4.** Use the /etc/lora/decoder/Dragino_LHT65 as template to decode your payload. This script is written in Lua language. User can manually call this script when you see the data file in /var/iot/channels by running:
149 +
117 117  {{{/etc/lora/decoder/Dragino_LHT65 END_NODE_DEV_ADDR
118 118  }}}
119 119  
120 -5/ What you see as output is the MQTT data device will upload, user's end node has different payload compare with LHT65, most properly this file will report with error. User need to modify to match the actual payload. Some notice:
153 +**5.** What you see as output is the MQTT data device will upload, user's end node has different payload compare with LHT65, most properly this file will report with error. User need to modify to match the actual payload.
121 121  
155 +
156 +(% style="color:red" %)
157 +**Some notice:**
158 +
122 122  * RSSI and SNR are added when gateway receive the packet, so there is always this field.
123 123  * If you rename the file, please make it executable.
124 124  * See this link for lua.bit module: [[http:~~/~~/luaforge.net/projects/bit/>>url:http://luaforge.net/projects/bit/]]
... ... @@ -126,46 +126,53 @@
126 126  * the last line return is what will be used for MQTT
127 127  * User can use other language ,not limited to Lua, just make sure the return is what you want to send.
128 128  
166 +
167 +
168 +
129 129  == 2.2 Downstream ==
130 130  
171 +
131 131  In LG308, we can create a file in the directory /var/iot/push for downstream purpose. We recommend using each command to generate this file. This file will be used for transmission and auto-deleted after used
132 132  
133 133  The file should use below format:
134 134  
176 +(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload**
135 135  
136 -dev_addr,imme/time,txt/hex,payload
137 -
138 138  Since fimware > Dragino-v2 lgw-5.4.1608518541 . Support more option
139 139  
140 -dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow
180 +(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow**
141 141  
142 -* dev_addr: Inptu the device address
143 -* imme/time:
182 +* **dev_addr:** Inptu the device address
183 +* **imme/time:**
144 144  ** imme: send downstream immediately,For Class C end node.
145 145  ** time: send downstream after receive device's uplink. For Class A end node
146 -* txt/hex:
186 +* **txt/hex:**
147 147  ** txt: send payload in ASCII
148 148  ** hex: send payload in HEX
149 -* payload: payload to be sent, payload lenght should match the LoRaWAN protocol requirement.
150 -* txpw: Transmit Power. example: 20
151 -* txbw: bandwidth:
189 +* **payload: **payload to be sent, payload lenght should match the LoRaWAN protocol requirement.
190 +* **txpw:** Transmit Power. example: 20
191 +* **txbw:** bandwidth:
152 152  ** 1: 500 kHz
153 153  ** 2: 250 kHz
154 154  ** 3: 125 kHz
155 155  ** 4: 62.5 kHz
156 -* SF: Spreading Factor : SF7/SF8/SF9/SF10/SF11/SF12
157 -* Frequency: Transmit Frequency: example: 923300000
158 -* rxwindow: transmit on Rx1Window or Rx2Window.
196 +* **SF:** Spreading Factor : SF7/SF8/SF9/SF10/SF11/SF12
197 +* **Frequency:** Transmit Frequency: example: 923300000
198 +* **rxwindow:** transmit on Rx1Window or Rx2Window.
159 159  
160 160  
161 -Completely exmaple:
162 162  
163 -* Old version: echo 018193F4,imme,hex,0101 > /var/iot/push/test
164 -* New version: echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
165 165  
203 +(% style="color:blue" %)**Completely exmaple:**
166 166  
167 -Downstream Frequency
205 +* **Old version:** echo 018193F4,imme,hex,0101 > /var/iot/push/test
206 +* **New version:** echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
168 168  
208 +
209 +
210 +
211 +(% style="color:#037691" %)**Downstream Frequency**
212 +
169 169  The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
170 170  
171 171  * EU868: 869.525Mhz, DR0(SF12BW125)
... ... @@ -178,22 +178,29 @@
178 178  * RU864: 869.1Mhz, SF12 BW125
179 179  
180 180  
181 -Examples:
182 182  
183 -{{{we can use echo command to create files in LG308 for downstream.
184 -root@dragino-1d25dc:~# echo 2602111D,time,hex,12345678 > /var/iot/push/test
185 185  
186 -1) From logread -f of gateway, we can see it has been added as pedning.
187 -lora_pkt_fwd[4286]: INFO~ [DNLK]Looking file : test
188 -lora_pkt_fwd[4286]: INFO~ [DNLK]devaddr:2602111D, txmode:time, pdfm:hex, size:4, payload1:4Vx,payload_hex:77C1BB90
189 -lora_pkt_fwd[4286]: INFO~ [DNLK] DNLINK PENDING!(1 elems).
227 +(% style="color:#037691" %)**Examples:**
190 190  
191 -2) When there is an upstrea from end node, this downstream will be sent and shows:
229 +(% class="box" %)
230 +(((
231 +we can use echo command to create files in LG308 for downstream.
232 +root@dragino-1d25dc:~~# echo 2602111D,time,hex,12345678 > /var/iot/push/test
233 +
234 +
235 +**1)** From logread -f of gateway, we can see it has been added as pedning.
236 +lora_pkt_fwd[4286]: INFO~~ [DNLK]Looking file : test
237 +lora_pkt_fwd[4286]: INFO~~ [DNLK]devaddr:2602111D, txmode:time, pdfm:hex, size:4, payload1:4Vx,payload_hex:77C1BB90
238 +lora_pkt_fwd[4286]: INFO~~ [DNLK] DNLINK PENDING!(1 elems).
239 +
240 +
241 +**2)** When there is an upstrea from end node, this downstream will be sent and shows:
192 192  lora_pkt_fwd[4286]: INFO: tx_start_delay=1497 (1497.000000) - (1497, bw_delay=0.000000, notch_delay=0.000000)
193 193  lora_pkt_fwd[4286]: [LGWSEND]lgw_send done: count_us=3537314420, freq=923300000, size=17
194 194  
195 -3) and the end node will got:
196 -[5764825]***** UpLinkCounter= 98 *****
245 +
246 +**3)** and the end node will got:
247 +[5764825]~*~*~*~** UpLinkCounter= 98 ~*~*~*~**
197 197  [5764827]TX on freq 905300000 Hz at DR 0
198 198  Update Interval: 60000 ms
199 199  [5765202]txDone
... ... @@ -203,11 +203,11 @@
203 203  [5767501]rxDone
204 204  Rssi= -41
205 205  Receive data
206 -2:12345678 --> Hex
207 -}}}
257 +(% style="color:#037691" %)**2:12345678**  (%%) ~-~-> Hex
208 208  
209 -{{{4) If we use the command "echo 2602111D,time,txt,12345678 > /var/iot/push/test" for downstream, the end node will got:
210 -[5955877]***** UpLinkCounter= 102 *****
259 +
260 +**4) **If we use the command "echo 2602111D,time,txt,12345678 > /var/iot/push/test" for downstream, the end node will got:
261 +[5955877]~*~*~*~** UpLinkCounter= 102 ~*~*~*~**
211 211  [5955879]TX on freq 904100000 Hz at DR 0
212 212  Update Interval: 60000 ms
213 213  [5956254]txDone
... ... @@ -217,79 +217,90 @@
217 217  [5958595]rxDone
218 218  Rssi= -37
219 219  Receive data
220 -2:3132333435363738 --> ASCII string "12345678"
221 -}}}
271 +(% style="color:#037691" %)**2:3132333435363738**(%%) ~-~-> ASCII string "12345678"
272 +)))
222 222  
274 +
223 223  = 3. Example 1: Communicate with LT-22222-L =
224 224  
277 +
225 225  Script can be download from: [[Example Script 1>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/customized_script/&file=talk_to_lt-22222-l_v0.1.sh]]
226 226  
227 -{{{#!/bin/sh
280 +(% class="box" %)
281 +(((
282 +//#!/bin/sh
228 228  # This scripts shows how to use LPS8/LG308/DLOS8 to communicate with two LoRaWAN End Nodes, without the use of internet or LoRaWAN server
229 229  #
230 -# Hardware Prepare:
231 -# 1. LT-22222-L x 2, both are configured to work in
232 -# a) Class C ;
233 -# b) ABP Mode ;
285 +# Hardware Prepare:
286 +# 1. LT-22222-L x 2, both are configured to work in
287 +#   a) Class C ;
288 +# b) ABP Mode ;
234 234  # c) AT+Mod=1
235 -# 2. LPS8,
236 -# a) Firmware version >
237 -# b) Input the LT-22222-L keys in LPS so LPS8 can talk with them.
238 -# c) Lorawan server choose built-in
239 -# d) in Custom page, select custom script to point to this script. (put this script in /etc/iot/scripts directory)
240 -#
241 -# How it works?
242 -# a) Devices 1 sends a uplink payload to LPS8. LPS8 will get the DI1 and DI2 info from the payload
243 -# b) LPS8 will send a message to Device 2 to set the Device2 DO1 = Device1 DI1, and Device DO2 = Device DI2.
244 -# c) Device2 will change DO1 and DO2 to according to the message from LPS8, and send back a message to LPS8 with the its DO1
245 -# and DO2 value. LPS8 will ask Device1 to change its DO1 to same as Device 2, and change the DO2 to the same as Device 2.
246 -# ( The purpose of this step is to show that the Device2 has already do the change there).
247 -#
248 -# For example: If current status of Device1 and Device2 leds shows:
249 -# Device1: DI1: ON, DI2: ON , DO1: OFF, DO2: OFF
250 -# Device2: DI1: OFF, DI2: OFF , DO1: OFF, DO2: OFF
290 +# 2. LPS8,
291 +#   a) Firmware version >
292 +#   b) Input the LT-22222-L keys in LPS so LPS8 can talk with them.
293 +#   c) Lorawan server choose built-in
294 +#   d) in Custom page, select custom script to point to this script. (put this script in /etc/iot/scripts directory)
251 251  #
252 -# Step2 will cause below change:
253 -# Device1: DI1: ON, DI2: ON , DO1: OFF, DO2: OFF
254 -# Device2: DI1: OFF, DI2: OFF , DO1: ON, DO2: ON
255 -#
256 -# Step3 will cause below change:
257 -# Device1: DI1: ON, DI2: ON , DO1: ON, DO2: ON
258 -# Device2: DI1: OFF, DI2: OFF , DO1: ON, DO2: ON
259 -# So if a person is in the Device 1 location, he can check if the DO LED match DI LEDs on Device 1 to confirm
260 -# whether the Device 2 has been changed.}}}
296 +# How it works?
297 +#   a) Devices 1 sends a uplink payload to LPS8. LPS8 will get the DI1 and DI2 info from the payload
298 +#   b) LPS8 will send a message to Device 2 to set the Device2 DO1 = Device1 DI1, and Device DO2 = Device DI2.
299 +#   c) Device2 will change DO1 and DO2 to according to the message from LPS8, and send back a message to LPS8 with the its DO1
300 +#   and DO2 value. LPS8 will ask Device1 to change its DO1 to same as Device 2, and change the DO2 to the same as Device 2.
301 +#   ( The purpose of this step is to show that the Device2 has already do the change there).
302 +#
303 +#  For example: If current status of Device1 and Device2 leds shows:
304 +#  Device1: DI1: ON, DI2: ON , DO1: OFF,  DO2: OFF
305 +#  Device2: DI1: OFF, DI2: OFF , DO1: OFF,  DO2: OFF
306 +#
307 +#  Step2  will cause below change:
308 +#  Device1: DI1: ON, DI2: ON , DO1: OFF,  DO2: OFF
309 +#  Device2: DI1: OFF, DI2: OFF , DO1: ON,  DO2: ON
310 +# 
311 +#  Step3 will cause below change:
312 +#  Device1: DI1: ON, DI2: ON , DO1: ON,  DO2: ON
313 +#  Device2: DI1: OFF, DI2: OFF , DO1: ON,  DO2: ON
314 +#  So if a person is in the Device 1 location, he can check if the DO LED match DI LEDs on Device 1 to confirm
315 +#  whether the Device 2 has been changed.//
316 +)))
261 261  
262 -~1. Input keys
263 263  
264 -[[image:https://wiki.dragino.com/images/thumb/b/bf/LPS8_LT-22222_1.png/600px-LPS8_LT-22222_1.png||height="335" width="600"]]
319 +**~1. Input keys**
265 265  
321 +[[image:image-20220527162450-3.png]]
322 +
266 266  Input Keys in LPS8
267 267  
268 -2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.
269 269  
270 -3. Choose Built-in server
326 +**2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.**
271 271  
272 -[[image:https://wiki.dragino.com/images/thumb/d/d7/LPS8_LT-22222_2.png/600px-LPS8_LT-22222_2.png||height="264" width="600"]]
273 273  
329 +**3. Choose Built-in server**
330 +
331 +[[image:image-20220527162518-4.png]]
332 +
274 274  Choose Built-in server
275 275  
276 -4. Run the script.
277 277  
278 -[[image:https://wiki.dragino.com/images/thumb/3/39/LPS8_LT-22222_3.png/600px-LPS8_LT-22222_3.png||height="389" width="600"]]
336 +**4. Run the script.**
279 279  
338 +[[image:image-20220527162552-5.png]]
339 +
280 280  Run the script
281 281  
282 -5. Output:
283 283  
284 -[[image:https://wiki.dragino.com/images/thumb/f/fe/LPS8_LT-22222_4.png/600px-LPS8_LT-22222_4.png||height="433" width="600"]]
343 +**5. Output:**
285 285  
345 +[[image:image-20220527162619-6.png]]
346 +
286 286  Output from LPS8
287 287  
288 288  
289 289  = 4. Example 2: Communicate to TCP Server =
290 290  
291 -[[image:https://wiki.dragino.com/images/thumb/7/75/LPS8_TCP_0.png/600px-LPS8_TCP_0.png||height="370" width="600"]]
292 292  
353 +[[image:image-20220527162648-7.png]]
354 +
293 293  Network Structure
294 294  
295 295  
... ... @@ -296,35 +296,42 @@
296 296  Full instruction video inlcude how to write scripts to fit server needed is here:
297 297  
298 298  
299 -Video Instruction: [[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]
361 +(% style="color:#037691" %)**Video Instruction**(%%): **[[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]**
300 300  
301 301  
302 -Note: Firmware version must be higher than lgw-5.4.1607519907
364 +(% style="color:red" %)**Note: Firmware version must be higher than lgw-5.4.1607519907**
303 303  
366 +
304 304  Assume we already set up ABP keys in the gateway:
305 305  
306 -[[image:https://wiki.dragino.com/images/thumb/b/bf/LPS8_LT-22222_1.png/600px-LPS8_LT-22222_1.png||height="335" width="600"]]
369 +[[image:image-20220527162852-8.png]]
307 307  
308 308  Input Keys in LPS8
309 309  
310 -run socket tool in PC
311 311  
312 -[[image:https://wiki.dragino.com/images/thumb/4/4b/LPS8_TCP_2.png/600px-LPS8_TCP_2.png||height="212" width="600"]]
313 313  
375 +**run socket tool in PC**
376 +
377 +[[image:image-20220527163028-9.png]]
378 +
379 +
314 314  Socket tool
315 315  
316 316  
317 -Input Server address and port
318 318  
319 -[[image:https://wiki.dragino.com/images/thumb/c/c6/LPS8_TCP_3.png/600px-LPS8_TCP_3.png||height="306" width="600"]]
384 +**Input Server address and port**
320 320  
386 +[[image:image-20220527163106-10.png]]
387 +
321 321  Input Server address and port
322 322  
323 323  
324 -See value receive in socket tool. :
325 325  
326 -[[image:https://wiki.dragino.com/images/thumb/2/20/LPS8_TCP_4.png/600px-LPS8_TCP_4.png||height="219" width="600"]]
392 +**See value receive in socket tool:**
327 327  
394 +[[image:image-20220527163144-11.png]]
395 +
328 328  value receive in socket tool
329 329  
398 +
330 330  If user want to modify the TCP connection method. He can refer: [[https:~~/~~/github.com/dragino/dragino-packages/blob/lg02/haserl-ui/root/usr/bin/tcp_process.sh>>url:https://github.com/dragino/dragino-packages/blob/lg02/haserl-ui/root/usr/bin/tcp_process.sh]]. Same script is on /usr/bin of gateway.
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