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Last modified by Xiaoling on 2025/07/31 15:09
From version 21.7
edited by Xiaoling
on 2025/07/31 15:02
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To version 1.3
edited by Xiaoling
on 2022/05/12 17:50
Change comment: There is no comment for this version

Summary

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1 -**Table of Contents:**
1 +Contents:
2 2  
3 -{{toc/}}
4 4  
5 -
6 -
7 7  = 1. Introduction =
8 8  
9 -
10 10  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:
11 11  
12 12  * No internet connection.
9 +* 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 13  
14 -* 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]]).
15 15  
16 -(((
17 -The basic of this feature is the decoding of (% style="color:red" %)**LoRaWAN ABP End Node**(%%). Requirements:
18 -)))
12 +The basic of this feature is the decoding of LoRaWAN ABP End Node. Requirements:
19 19  
20 -* LoRaWAN End Node in ABP mode. Make sure your end node works in this mode. End node most are default set to OTAA mode
14 +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
15 +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]]
16 +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 21  
22 -* LoRaWAN Gateway model: [[DLOS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/225-dlos8n.html]], [[LPS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/200-lps8n.html]], [[LG308N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/229-lg308n.html]]
23 23  
24 -* 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 += 2. How it works
20 +\\Video Instruction: [[https:~~/~~/youtu.be/ZBjXwmp7rwM>>url:https://youtu.be/ZBjXwmp7rwM]] =
25 25  
26 -
27 -
28 -= 2. How it works =
29 -
30 -
31 -(% style="color:#037691" %)**Video Instruction**(%%): **[[https:~~/~~/youtu.be/ZBjXwmp7rwM>>url:https://youtu.be/ZBjXwmp7rwM]]**
32 -
33 -
34 34  Assume we have the LoRaWAN tracker LGT92 which works in ABP mode and US915 band. It has below keys:
35 35  
36 -(% class="box infomessage" %)
37 -(((
38 -**AT+NWKSKEY=72 32 63 95 dd 8f e2 b2 13 66 e4 35 93 8f 55 df
24 +{{{AT+NWKSKEY=72 32 63 95 dd 8f e2 b2 13 66 e4 35 93 8f 55 df
39 39  AT+APPSKEY=b3 17 f8 14 7a 43 27 8a 6a 31 c4 47 3d 55 5d 33
40 -AT+DADDR=2602111D**
41 -)))
26 +AT+DADDR=2602111D
27 +}}}
42 42  
43 -(((
44 44  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.
45 45  
46 -
47 -)))
48 -
49 49  We need to input above keys in LG308 and enable ABP decryption.
50 50  
33 +[[image:https://wiki.dragino.com/images/thumb/5/55/LG308_MQTT_1.png/600px-LG308_MQTT_1.png||height="329" width="600"]]
51 51  
52 -[[image:image-20220527161119-1.png]]
53 -
54 -
55 55  Input the ABP keys in LG308
56 56  
57 57  
58 58  == 2.1 Upstream ==
59 59  
60 -
61 61  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.
62 62  
63 -(((
64 -We can see the log of LG308 to know this packet arrive.
42 +We can see the log of LG308 to know this packet arrive
65 65  
66 -
67 -)))
44 +[[image:https://wiki.dragino.com/images/thumb/1/16/ABP_DECODE_2.png/600px-ABP_DECODE_2.png||height="205" width="600"]]
68 68  
69 -[[image:image-20220527161149-2.png]]
46 +LG308 log by "logread -f" command
70 70  
71 71  
72 -LG308 log by "(% style="color:red" %)**logread -f**" (%%)command
73 -
74 -
75 -
76 76  The data of End Node is stored in the file /var/iot/channels/2602111D. We can use hexdump command to check it.
77 77  
78 -(% class="box" %)
79 -(((
80 -root@dragino-1d25dc:~~# hexdump /var/iot/channels/2602111D
81 -0000000 (% style="color:#037691" %)**4646 4646 4646 3946 3030 3030 3030 3546**(%%)      ~-~-> Got RSSI and SNR    
82 -0000010 (% style="color:#037691" %)**cc0c 0b63 0266 017f ff7f ff00 **(%%) ~-~-> Payload
51 +{{{root@dragino-1d25dc:~# hexdump /var/iot/channels/2602111D
52 +0000000 4646 4646 4646 3946 3030 3030 3030 3546 --> Got RSSI and SNR
53 +0000010 cc0c 0b63 0266 017f ff7f ff00 --> Payload
83 83  000001c
84 -)))
55 +}}}
85 85  
86 -* **RSSI**: 4646 4646 4646 3946 = 0xFFFF FF9F : So RSSI = (0xFFFF FF9F - 0x100000000) = -97
57 +* RSSI: 4646 4646 4646 3946 = 0xFFFF FF9F : So RSSI = (0xFFFF FF9F - 0x100000000) = -97
58 +* SNR: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
59 +* Payload: 0xcc0c 0b63 0266 017f ff7f ff00
87 87  
88 -* **SNR**: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
89 89  
90 -* **Payload**: 0xcc0c 0b63 0266 017f ff7f ff00
91 -
92 -(% class="box" %)
93 -(((
94 -(% 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:
95 -in LGT92, use (% style="color:#037691" %)**AT+SEND=12:hello world** (%%)to send ASCII string
96 -root@dragino-1d25dc:~~# hexdump /var/iot/channels/2602111D
62 +{{{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:
63 +in LGT92, use AT+SEND=12:hello world to send ASCII string
64 +root@dragino-1d25dc:~# hexdump /var/iot/channels/2602111D
97 97  0000000 4646 4646 4646 3946 3030 3030 3030 3546
98 -0000010 6865 6c6c 6f20 776f 726c 6400      ~-~-> Got ASCII code "hello world"    
66 +0000010 6865 6c6c 6f20 776f 726c 6400 --> Got ASCII code "hello world"
99 99  000001c
100 -)))
68 +}}}
101 101  
70 +{{{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.
71 +}}}
102 102  
103 -
104 -(% class="box" %)
105 -(((
106 -(% 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.
107 -)))
108 -
109 -
110 110  === 2.2.1 Decode Method ===
111 111  
75 +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.
112 112  
113 -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.
114 -
115 115  For example we have a LHT65 , works in ABP mode and gateway successful get the data, which are:
116 116  
117 -(% class="box" %)
118 -(((
119 -root@dragino-1baf44:~~# hexdump /var/iot/channels/01826108
79 +{{{root@dragino-1baf44:~# hexdump /var/iot/channels/01826108
120 120  0000000 4646 4646 4646 4537 3030 3030 3030 3438
121 -0000010 ccd1 7fff 7fff 017f ff7f ff00         
81 +0000010 ccd1 7fff 7fff 017f ff7f ff00
122 122  000001c
123 -)))
83 +}}}
124 124  
125 -
126 126  If we choose ASCII decoder, the MQTT process will send out with mqtt-data:
127 127  
128 -(% class="box" %)
129 -(((
130 -Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
87 +{{{Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
131 131  Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:decoder: ASCII
132 -Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: (% style="color:#037691" %)**ffffffe700000048ccd17fff7fff017fff7fff00**
133 -)))
89 +Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: ffffffe700000048ccd17fff7fff017fff7fff00
90 +}}}
134 134  
135 -
136 136  If we choose Decode_LHT65, the MQTT process will send out with mqtt-data
137 137  
138 -(% class="box" %)
139 -(((
140 -Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
94 +{{{Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
141 141  Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:decoder: Dragino_LHT65
142 -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,
143 -"EXT":"Temperature Sensor","RSSI":-24,"TempC_SHT":85.0,"SNR":8.2,"ext_sensor":0}(%%)**
144 -)))
96 +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,
97 +"EXT":"Temperature Sensor","RSSI":-24,"TempC_SHT":85.0,"SNR":8.2,"ext_sensor":0}
98 +}}}
145 145  
146 146  Above scripts are store in /etc/lora/decoder/. User can put their scripts here and select it in the UI.
147 147  
... ... @@ -148,128 +148,94 @@
148 148  
149 149  === 2.2.2 How to Decode My End Node ===
150 150  
105 +1/ Configure the ABP keys for your end node in the gateway. enable ABP decode in Web UI
151 151  
152 -**1.** Configure the ABP keys for your end node in the gateway. enable ABP decode in Web UI
107 +2/ Don't choose MQTT service, use LoRaWAN.
153 153  
154 -**2. **Don't choose MQTT service, use LoRaWAN.
109 +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
155 155  
156 -**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
111 +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:
157 157  
158 -**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:
159 -
160 160  {{{/etc/lora/decoder/Dragino_LHT65 END_NODE_DEV_ADDR
161 161  }}}
162 162  
163 -**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.
116 +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:
164 164  
165 -
166 -(% style="color:red" %)
167 -**Some notice:**
168 -
169 169  * RSSI and SNR are added when gateway receive the packet, so there is always this field.
170 -
171 171  * If you rename the file, please make it executable.
172 -
173 173  * See this link for lua.bit module: [[http:~~/~~/luaforge.net/projects/bit/>>url:http://luaforge.net/projects/bit/]]
174 -
175 175  * Lua json module: [[http:~~/~~/json.luaforge.net/>>url:http://json.luaforge.net/]]
176 -
177 177  * the last line return is what will be used for MQTT
178 -
179 179  * User can use other language ,not limited to Lua, just make sure the return is what you want to send.
180 180  
181 -
182 -
183 183  == 2.2 Downstream ==
184 184  
185 -
186 186  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
187 187  
188 188  The file should use below format:
189 189  
190 -(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload**
191 191  
132 +dev_addr,imme/time,txt/hex,payload
192 192  
193 -Since fimware > [[Dragino lgw~~-~~-build-v5.4.1668567157>>https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LG308-LG301/Firmware/Release/]] . Support more option
134 +Since fimware > Dragino-v2 lgw-5.4.1608518541 . Support more option
194 194  
195 -(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow,Fport**
136 +dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow
196 196  
197 -* **dev_addr:** Inptu the device address
198 -
199 -* **imme/time:**
138 +* dev_addr: Inptu the device address
139 +* imme/time:
200 200  ** imme: send downstream immediately,For Class C end node.
201 201  ** time: send downstream after receive device's uplink. For Class A end node
202 -
203 -* **txt/hex:**
142 +* txt/hex:
204 204  ** txt: send payload in ASCII
205 205  ** hex: send payload in HEX
206 -
207 -* **payload: **payload to be sent, payload lenght should match the LoRaWAN protocol requirement.
208 -
209 -* **txpw:** Transmit Power. example: 20
210 -
211 -* **txbw:** bandwidth:
145 +* payload: payload to be sent, payload lenght should match the LoRaWAN protocol requirement.
146 +* txpw: Transmit Power. example: 20
147 +* txbw: bandwidth:
212 212  ** 1: 500 kHz
213 213  ** 2: 250 kHz
214 214  ** 3: 125 kHz
215 215  ** 4: 62.5 kHz
216 -* **SF:** Spreading Factor : SF7/SF8/SF9/SF10/SF11/SF12
152 +* SF: Spreading Factor : SF7/SF8/SF9/SF10/SF11/SF12
153 +* Frequency: Transmit Frequency: example: 923300000
154 +* rxwindow: transmit on Rx1Window or Rx2Window.
217 217  
218 -* **Frequency:** Transmit Frequency: example: 923300000
219 219  
220 -* **rxwindow:** transmit on Rx1Window or Rx2Window.
157 +Completely exmaple:
221 221  
222 -* **Fport: **Transmit port,example:8
159 +* Old version: echo 018193F4,imme,hex,0101 > /var/iot/push/test
160 +* New version: echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
223 223  
224 -(% style="color:blue" %)**Completely exmaple:**
225 225  
226 -* **Old version:** echo 018193F4,imme,hex,0101 > /var/iot/push/test
163 +Downstream Frequency
227 227  
228 -* **New version:** echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2,8 > /var/iot/push/test
229 -
230 -Downstream(% style="color:#037691" %)** Frequency:**
231 -
232 232  The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
233 233  
234 234  * EU868: 869.525Mhz, DR0(SF12BW125)
235 -
236 236  * US915: 923.3Mhz, SF12 BW500
237 -
238 238  * CN470: 505.3Mhz, SF12 BW125
239 -
240 240  * AU915: 923.3Mhz, SF12 BW500
241 -
242 242  * AS923: 923.2Mhz, SF10 BW125
243 -
244 244  * KR920: 921.9Mhz, SF12 BW125
245 -
246 246  * IN865: 866.55Mhz, SF10 BW125
247 -
248 248  * RU864: 869.1Mhz, SF12 BW125
249 249  
250 250  
177 +Examples:
251 251  
252 -(% style="color:#037691" %)**Examples:**
179 +{{{we can use echo command to create files in LG308 for downstream.
180 +root@dragino-1d25dc:~# echo 2602111D,time,hex,12345678 > /var/iot/push/test
253 253  
254 -(% class="box" %)
255 -(((
256 -we can use echo command to create files in LG308 for downstream.
257 -root@dragino-1d25dc:~~# echo 2602111D,time,hex,12345678 > /var/iot/push/test
182 +1) From logread -f of gateway, we can see it has been added as pedning.
183 +lora_pkt_fwd[4286]: INFO~ [DNLK]Looking file : test
184 +lora_pkt_fwd[4286]: INFO~ [DNLK]devaddr:2602111D, txmode:time, pdfm:hex, size:4, payload1:4Vx,payload_hex:77C1BB90
185 +lora_pkt_fwd[4286]: INFO~ [DNLK] DNLINK PENDING!(1 elems).
258 258  
259 -
260 -**1)** From logread -f of gateway, we can see it has been added as pedning.
261 -lora_pkt_fwd[4286]: INFO~~ [DNLK]Looking file : test
262 -lora_pkt_fwd[4286]: INFO~~ [DNLK]devaddr:2602111D, txmode:time, pdfm:hex, size:4, payload1:4Vx,payload_hex:77C1BB90
263 -lora_pkt_fwd[4286]: INFO~~ [DNLK] DNLINK PENDING!(1 elems).
264 -
265 -
266 -**2)** When there is an upstrea from end node, this downstream will be sent and shows:
187 +2) When there is an upstrea from end node, this downstream will be sent and shows:
267 267  lora_pkt_fwd[4286]: INFO: tx_start_delay=1497 (1497.000000) - (1497, bw_delay=0.000000, notch_delay=0.000000)
268 268  lora_pkt_fwd[4286]: [LGWSEND]lgw_send done: count_us=3537314420, freq=923300000, size=17
269 269  
270 -
271 -**3)** and the end node will got:
272 -[5764825]~*~*~*~** UpLinkCounter= 98 ~*~*~*~**
191 +3) and the end node will got:
192 +[5764825]***** UpLinkCounter= 98 *****
273 273  [5764827]TX on freq 905300000 Hz at DR 0
274 274  Update Interval: 60000 ms
275 275  [5765202]txDone
... ... @@ -279,11 +279,11 @@
279 279  [5767501]rxDone
280 280  Rssi= -41
281 281  Receive data
282 -(% style="color:#037691" %)**2:12345678**  (%%) ~-~-> Hex
202 +2:12345678 --> Hex
203 +}}}
283 283  
284 -
285 -**4) **If we use the command "echo 2602111D,time,txt,12345678 > /var/iot/push/test" for downstream, the end node will got:
286 -[5955877]~*~*~*~** UpLinkCounter= 102 ~*~*~*~**
205 +{{{4) If we use the command "echo 2602111D,time,txt,12345678 > /var/iot/push/test" for downstream, the end node will got:
206 +[5955877]***** UpLinkCounter= 102 *****
287 287  [5955879]TX on freq 904100000 Hz at DR 0
288 288  Update Interval: 60000 ms
289 289  [5956254]txDone
... ... @@ -293,142 +293,114 @@
293 293  [5958595]rxDone
294 294  Rssi= -37
295 295  Receive data
296 -(% style="color:#037691" %)**2:3132333435363738**(%%) ~-~-> ASCII string "12345678"
297 -)))
216 +2:3132333435363738 --> ASCII string "12345678"
217 +}}}
298 298  
299 -
300 300  = 3. Example 1: Communicate with LT-22222-L =
301 301  
302 -
303 303  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]]
304 304  
305 -(% class="box" %)
306 -(((
307 -//#!/bin/sh
223 +{{{#!/bin/sh
308 308  # This scripts shows how to use LPS8/LG308/DLOS8 to communicate with two LoRaWAN End Nodes, without the use of internet or LoRaWAN server
309 309  #
310 -# Hardware Prepare:
311 -# 1. LT-22222-L x 2, both are configured to work in
312 -#   a) Class C ;
313 -# b) ABP Mode ;
226 +# Hardware Prepare:
227 +# 1. LT-22222-L x 2, both are configured to work in
228 +# a) Class C ;
229 +# b) ABP Mode ;
314 314  # c) AT+Mod=1
315 -# 2. LPS8,
316 -#   a) Firmware version >
317 -#   b) Input the LT-22222-L keys in LPS so LPS8 can talk with them.
318 -#   c) Lorawan server choose built-in
319 -#   d) in Custom page, select custom script to point to this script. (put this script in /etc/iot/scripts directory)
231 +# 2. LPS8,
232 +# a) Firmware version >
233 +# b) Input the LT-22222-L keys in LPS so LPS8 can talk with them.
234 +# c) Lorawan server choose built-in
235 +# d) in Custom page, select custom script to point to this script. (put this script in /etc/iot/scripts directory)
236 +#
237 +# How it works?
238 +# a) Devices 1 sends a uplink payload to LPS8. LPS8 will get the DI1 and DI2 info from the payload
239 +# b) LPS8 will send a message to Device 2 to set the Device2 DO1 = Device1 DI1, and Device DO2 = Device DI2.
240 +# 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
241 +# 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.
242 +# ( The purpose of this step is to show that the Device2 has already do the change there).
243 +#
244 +# For example: If current status of Device1 and Device2 leds shows:
245 +# Device1: DI1: ON, DI2: ON , DO1: OFF, DO2: OFF
246 +# Device2: DI1: OFF, DI2: OFF , DO1: OFF, DO2: OFF
320 320  #
321 -# How it works?
322 -#   a) Devices 1 sends a uplink payload to LPS8. LPS8 will get the DI1 and DI2 info from the payload
323 -#   b) LPS8 will send a message to Device 2 to set the Device2 DO1 = Device1 DI1, and Device DO2 = Device DI2.
324 -#   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
325 -#   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.
326 -#   ( The purpose of this step is to show that the Device2 has already do the change there).
327 -#
328 -#  For example: If current status of Device1 and Device2 leds shows:
329 -#  Device1: DI1: ON, DI2: ON , DO1: OFF,  DO2: OFF
330 -#  Device2: DI1: OFF, DI2: OFF , DO1: OFF,  DO2: OFF
331 -#
332 -#  Step2  will cause below change:
333 -#  Device1: DI1: ON, DI2: ON , DO1: OFF,  DO2: OFF
334 -#  Device2: DI1: OFF, DI2: OFF , DO1: ON,  DO2: ON
335 -# 
336 -#  Step3 will cause below change:
337 -#  Device1: DI1: ON, DI2: ON , DO1: ON,  DO2: ON
338 -#  Device2: DI1: OFF, DI2: OFF , DO1: ON,  DO2: ON
339 -#  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
340 -#  whether the Device 2 has been changed.//
341 -)))
248 +# Step2 will cause below change:
249 +# Device1: DI1: ON, DI2: ON , DO1: OFF, DO2: OFF
250 +# Device2: DI1: OFF, DI2: OFF , DO1: ON, DO2: ON
251 +#
252 +# Step3 will cause below change:
253 +# Device1: DI1: ON, DI2: ON , DO1: ON, DO2: ON
254 +# Device2: DI1: OFF, DI2: OFF , DO1: ON, DO2: ON
255 +# 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
256 +# whether the Device 2 has been changed.}}}
342 342  
258 +~1. Input keys
343 343  
344 -(% style="color:blue" %)**1. Input keys**
260 +[[image:https://wiki.dragino.com/images/thumb/b/bf/LPS8_LT-22222_1.png/600px-LPS8_LT-22222_1.png||height="335" width="600"]]
345 345  
346 -
347 -[[image:image-20220527162450-3.png]]
348 -
349 349  Input Keys in LPS8
350 350  
264 +2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.
351 351  
266 +3. Choose Built-in server
352 352  
353 -(% style="color:blue" %)**2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.**
268 +[[image:https://wiki.dragino.com/images/thumb/d/d7/LPS8_LT-22222_2.png/600px-LPS8_LT-22222_2.png||height="264" width="600"]]
354 354  
355 -
356 -(% style="color:blue" %)**3. Choose Built-in server**
357 -
358 -
359 -[[image:image-20220527162518-4.png]]
360 -
361 361  Choose Built-in server
362 362  
272 +4. Run the script.
363 363  
274 +[[image:https://wiki.dragino.com/images/thumb/3/39/LPS8_LT-22222_3.png/600px-LPS8_LT-22222_3.png||height="389" width="600"]]
364 364  
365 -(% style="color:blue" %)**4. Run the script.**
366 -
367 -
368 -[[image:image-20220722115213-2.png]]
369 -
370 370  Run the script
371 371  
278 +5. Output:
372 372  
280 +[[image:https://wiki.dragino.com/images/thumb/f/fe/LPS8_LT-22222_4.png/600px-LPS8_LT-22222_4.png||height="433" width="600"]]
373 373  
374 -(% style="color:blue" %)**5. Output:**
375 -
376 -
377 -[[image:image-20220722115133-1.png]]
378 -
379 379  Output from LPS8
380 380  
381 381  
382 382  = 4. Example 2: Communicate to TCP Server =
383 383  
287 +[[image:https://wiki.dragino.com/images/thumb/7/75/LPS8_TCP_0.png/600px-LPS8_TCP_0.png||height="370" width="600"]]
384 384  
385 -[[image:image-20220527162648-7.png]]
386 -
387 387  Network Structure
388 388  
389 389  
390 390  Full instruction video inlcude how to write scripts to fit server needed is here:
391 391  
392 -(% style="color:#037691" %)**Video Instruction**(%%): **[[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]**
393 393  
394 -(% style="display:none" %) (%%)
295 +Video Instruction: [[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]
395 395  
396 -(% style="color:red" %)**Note: Firmware version must be higher than lgw-5.4.1607519907**
397 397  
298 +Note: Firmware version must be higher than lgw-5.4.1607519907
398 398  
399 399  Assume we already set up ABP keys in the gateway:
400 400  
401 -[[image:image-20220527162852-8.png]]
302 +[[image:https://wiki.dragino.com/images/thumb/b/bf/LPS8_LT-22222_1.png/600px-LPS8_LT-22222_1.png||height="335" width="600"]]
402 402  
403 403  Input Keys in LPS8
404 404  
306 +run socket tool in PC
405 405  
308 +[[image:https://wiki.dragino.com/images/thumb/4/4b/LPS8_TCP_2.png/600px-LPS8_TCP_2.png||height="212" width="600"]]
406 406  
407 -(% style="color:blue" %)**run socket tool in PC**
408 -
409 -
410 -[[image:image-20220527163028-9.png]]
411 -
412 -
413 413  Socket tool
414 414  
415 415  
313 +Input Server address and port
416 416  
417 -(% style="color:blue" %)**Input Server address and port**
315 +[[image:https://wiki.dragino.com/images/thumb/c/c6/LPS8_TCP_3.png/600px-LPS8_TCP_3.png||height="306" width="600"]]
418 418  
419 -
420 -[[image:image-20220527163106-10.png]]
421 -
422 422  Input Server address and port
423 423  
424 424  
320 +See value receive in socket tool. :
425 425  
426 -(% style="color:blue" %)**See value receive in socket tool:**
322 +[[image:https://wiki.dragino.com/images/thumb/2/20/LPS8_TCP_4.png/600px-LPS8_TCP_4.png||height="219" width="600"]]
427 427  
428 -
429 -[[image:image-20220527163144-11.png||height="502" width="1371"]]
430 -
431 431  value receive in socket tool
432 432  
433 -
434 434  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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