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Last modified by Mengting Qiu on 2025/07/03 16:36
From version 72.1
edited by Mengting Qiu
on 2025/07/03 16:36
Change comment: There is no comment for this version
To version 60.1
edited by Xiaoling
on 2025/03/31 16:40
Change comment: Uploaded new attachment "image-20250331164026-14.jpeg", version {1}

Summary

Details

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Author
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1 -XWiki.ting
1 +XWiki.Xiaoling
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1 1  (% style="display:none" %) (%%)
2 2  
3 -[[image:image-20240108161155-2.png||data-xwiki-image-style-alignment="center"]]
3 +(% style="text-align:center" %)
4 +[[image:image-20240108161155-2.png]]
4 4  
5 5  
6 6  
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59 59  )))
60 60  
61 61  
63 +[[image:image-20230522092934-2.png||height="346" width="774"]]
64 +
65 +
62 62  == 1.2 ​Features ==
63 63  
64 64  
... ... @@ -123,20 +123,20 @@
123 123  == 1.6 Button & LEDs ==
124 124  
125 125  
126 -[[image:image-20250417152253-1.jpeg]]
130 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/RS485-LB_Waterproof_RS485UART_to_LoRaWAN_Converter/WebHome/image-20240103160425-4.png?rev=1.1||alt="image-20240103160425-4.png"]]
127 127  
128 128  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
129 129  |=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 226px;background-color:#4F81BD;color:white" %)**Action**
130 -|[[image:1749536870332-565.png]] 1~~3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
134 +|(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
131 131  If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
132 132  Meanwhile, BLE module will be active and user can connect via BLE to configure device.
133 133  )))
134 -|[[image:1749536872361-767.png]] >3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
138 +|(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
135 135  (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
136 136  (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
137 137  Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.
138 138  )))
139 -|[[image:1749536881052-376.png]] x5|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means Device is in Deep Sleep Mode.
143 +|(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means Device is in Deep Sleep Mode.
140 140  
141 141  == 1.7 BLE connection ==
142 142  
... ... @@ -162,7 +162,7 @@
162 162  
163 163  === 1.9.1 for LB version ===
164 164  
165 -[[image:image-20250331163305-1.jpeg]]
169 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DDS75-LB_LoRaWAN_Distance_Detection_Sensor_User_Manual/WebHome/image-20240105152536-3.png?rev=1.1||alt="image-20240105152536-3.png"]]
166 166  
167 167  
168 168  (% style="color:blue" %)**Probe Mechanical:**
... ... @@ -170,12 +170,15 @@
170 170  [[image:Main.User Manual for LoRaWAN End Nodes.LDS03A - Outdoor LoRaWAN OpenClose Door Sensor Manual.WebHome@1654741444887-479.png||height="399" width="513"]]
171 171  
172 172  
177 +
173 173  === 1.9.2 for LS version ===
174 174  
175 175  
176 -[[image:image-20250331163324-2.jpeg]]
181 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SN50v3-LB/WebHome/image-20231231203439-3.png?width=886&height=385&rev=1.1||alt="image-20231231203439-3.png"]]
177 177  
178 178  
184 +
185 +
179 179  == 1.10 Magnet Distance ==
180 180  
181 181  
... ... @@ -197,7 +197,7 @@
197 197  
198 198  The LPS8v2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
199 199  
200 -[[image:image-20250417152741-2.png]]
207 +[[image:image-20230522092858-1.png||height="391" width="874"]]
201 201  
202 202  
203 203  (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DS03A-LB/LS.
... ... @@ -209,45 +209,32 @@
209 209  
210 210  You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
211 211  
212 -**Create the application.**
219 +(% style="display:none" %) (%%)
213 213  
214 -[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SAC01L_LoRaWAN_Temperature%26Humidity_Sensor_User_Manual/WebHome/image-20250423093843-1.png?width=756&height=264&rev=1.1||alt="image-20250423093843-1.png"]]
221 +(% style="color:blue" %)**Register the device**
215 215  
216 -[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111305-2.png?width=1000&height=572&rev=1.1||alt="image-20240907111305-2.png"]]
217 217  
224 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual/WebHome/1675144099263-405.png?rev=1.1||alt="1675144099263-405.png"]](% style="display:none" %)
218 218  
219 -**Add devices to the created Application.**
220 220  
221 -[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111659-3.png?width=977&height=185&rev=1.1||alt="image-20240907111659-3.png"]]
227 +(% style="color:blue" %)**Add APP EUI and DEV EUI**
222 222  
223 -[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111820-5.png?width=975&height=377&rev=1.1||alt="image-20240907111820-5.png"]]
229 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual/WebHome/1675144117571-832.png?rev=1.1||alt="1675144117571-832.png"]]
224 224  
225 225  
226 -**Enter end device specifics manually.**
232 +(% style="color:blue" %)**Add APP EUI in the application**
227 227  
228 -[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112136-6.png?width=697&height=687&rev=1.1||alt="image-20240907112136-6.png"]]
234 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual/WebHome/1675144143021-195.png?rev=1.1||alt="1675144143021-195.png"]]
229 229  
230 230  
231 -**Add DevEUI and AppKey. Customize a platform ID for the device.**
237 +(% style="color:blue" %)**Add APP KEY**
232 232  
233 -[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112427-7.png?rev=1.1||alt="image-20240907112427-7.png"]]
239 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual/WebHome/1675144157838-392.png?rev=1.1||alt="1675144157838-392.png"]]
234 234  
235 235  
236 -(% style="color:blue" %)**Step 2:**(%%) Add decoder.
242 +(% style="color:blue" %)**Step 2:**(%%) Activate on DS03A-LB/LS
237 237  
238 -In TTN, user can add a custom payload so it shows friendly reading.
239 239  
240 -Click this link to get the decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder/tree/main/>>url:https://github.com/dragino/dragino-end-node-decoder/tree/main/]]
241 -
242 -Below is TTN screen shot:
243 -
244 -[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS25-LBLDS25-LS--LoRaWAN_LiDAR_Distance_Auto-Clean_Sensor_User_Manual/WebHome/image-20241009140556-1.png?width=1184&height=488&rev=1.1||alt="image-20241009140556-1.png" height="488" width="1184"]]
245 -
246 -[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS25-LBLDS25-LS--LoRaWAN_LiDAR_Distance_Auto-Clean_Sensor_User_Manual/WebHome/image-20241009140603-2.png?width=1168&height=562&rev=1.1||alt="image-20241009140603-2.png" height="562" width="1168"]]
247 -
248 -
249 -(% style="color:blue" %)**Step 3:**(%%) Activate on DS03A-LB/LS
250 -
251 251  Press the button for 5 seconds to activate the DS03A-LB/LS.
252 252  
253 253  (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode**(%%) for 3 seconds. And then start to Join LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
... ... @@ -665,54 +665,46 @@
665 665  
666 666  == 2.5 Datalog Feature ==
667 667  
668 - Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DS03A-LB/LS will store the reading for future retrieving purposes.
669 669  
663 +(% style="color:blue" %)**Datalog Feature** (%%)is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DS03A-LB/LS will store the reading for future retrieving purposes.
670 670  
671 -=== 2.5.1 How datalog works ===
665 +(% style="color:red" %)**Note:After the device is reset,in cumulative counting mode,the last stored count value will be read as the initial value.**
672 672  
673 673  
674 -DS03A-LB/LS will wait for ACK for every uplink, when there is no LoRaWAN network,DS03A-LB/LS will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
668 +=== 2.5.1 Ways to get datalog via LoRaWAN ===
675 675  
676 -* (((
677 -a) DS03A-LB/LS will do an ACK check for data records sending to make sure every data arrive server.
678 -)))
679 -* (((
680 -b) DS03A-LB/LS will send data in **CONFIRMED Mode**, but DS03A-LB/LS won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if DS03A-LB/LS gets a ACK, DS03A-LB/LS will consider there is a network connection and resend all NONE-ACK messages.
681 681  
682 -
683 -)))
671 +Set PNACKMD=1, DS03A-LB/LS will wait for ACK for every uplink, when there is no LoRaWAN network, DS03A-LB/LS will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
684 684  
685 -=== 2.5.2 Enable Datalog ===
673 +* a) DS03A-LB/LS will do an ACK check for data records sending to make sure every data arrive server.
674 +* b) DS03A-LB/LS will send data in **CONFIRMED Mode** when PNACKMD=1, but DS03A-LB/LS won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if DS03A-LB/LS gets a ACK, DS03A-LB/LS will consider there is a network connection and resend all NONE-ACK Message.
686 686  
676 +=== 2.5.2 Unix TimeStamp ===
687 687  
688 -User need to make sure below two settings are enable to use datalog;
689 689  
690 -* (% style="color:blue" %)**SYNCMOD=1(Default)**(%%) to enable sync time via LoRaWAN MAC command, click here ([[AT+SYNCMOD>>https://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H4.6Settimesynchronizationmethod28ThenetworkservermustsupportLoRaWANv1.0.329]]) for detailed instructions.
691 -* (% style="color:blue" %)**PNACKMD=1**(%%)** **to enable datalog feature, click here ([[AT+PNACKMD>>https://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.26RequesttheservertosendanACK]]) for detailed instructions.
679 +DS03A-LB/LS uses Unix TimeStamp format based on
692 692  
681 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-11.png?width=627&height=97&rev=1.1||alt="image-20220523001219-11.png" height="97" width="627"]]
693 693  
683 +User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
694 694  
695 -Once DS03A-LB/LS Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DS03A-LB/LS. If DS03A-LB/LS fails to get the time from the server, DS03A-LB/LS will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
685 +Below is the converter example
696 696  
697 -(% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**
687 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-12.png?width=720&height=298&rev=1.1||alt="image-20220523001219-12.png" height="298" width="720"]]
698 698  
689 +So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
699 699  
700 -=== 2.5.3 Unix TimeStamp ===
701 701  
692 +=== 2.5.3 Set Device Time ===
702 702  
703 -DS03A-LB/LS uses Unix TimeStamp format based on
704 704  
705 -[[image:image-20250331163638-7.jpeg]]
695 +User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
706 706  
707 -User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
697 +Once DS03A-LB/LS Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DS03A-LB/LS. If DS03A-LB/LS fails to get the time from the server, DS03A-LB/LS will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
708 708  
709 -Below is the converter example
699 +(% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN v3 and loriot support but TTN v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN v2 if SYNCMOD=1.**
710 710  
711 -[[image:image-20250331163648-8.jpeg]]
712 712  
713 -So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
714 -
715 -
716 716  == 2.6 ​Show Data in DataCake IoT Server ==
717 717  
718 718  
... ... @@ -723,35 +723,36 @@
723 723  
724 724  (% style="color:blue" %)**Step 2:**(%%)** Configure DS03A-LB/LS in Datacake.**
725 725  
726 -[[image:image-20250331163745-9.jpeg]]
712 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS03A%20-%20Outdoor%20LoRaWAN%20OpenClose%20Door%20Sensor%20Manual/WebHome/1654746350207-427.png?rev=1.1||alt="1654746350207-427.png"]]
727 727  
728 728  
715 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS03A%20-%20Outdoor%20LoRaWAN%20OpenClose%20Door%20Sensor%20Manual/WebHome/1654747162439-840.png?rev=1.1||alt="1654747162439-840.png"]]
729 729  
730 -[[image:image-20250331163816-10.jpeg]]
731 731  
718 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS03A%20-%20Outdoor%20LoRaWAN%20OpenClose%20Door%20Sensor%20Manual/WebHome/1654746405400-203.png?rev=1.1||alt="1654746405400-203.png"]]
732 732  
733 -[[image:image-20250331163900-11.jpeg]]
734 734  
735 -[[image:image-20250331163939-12.jpeg]]
721 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS03A%20-%20Outdoor%20LoRaWAN%20OpenClose%20Door%20Sensor%20Manual/WebHome/1654746763908-732.png?rev=1.1||alt="1654746763908-732.png"]]
736 736  
737 -[[image:image-20250331163958-13.jpeg]]
738 738  
724 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS03A%20-%20Outdoor%20LoRaWAN%20OpenClose%20Door%20Sensor%20Manual/WebHome/1654746716087-684.png?rev=1.1||alt="1654746716087-684.png"]]
739 739  
740 -[[image:image-20250331164026-14.jpeg]]
741 741  
727 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS03A%20-%20Outdoor%20LoRaWAN%20OpenClose%20Door%20Sensor%20Manual/WebHome/1654746693868-718.png?rev=1.1||alt="1654746693868-718.png"]]
742 742  
743 -[[image:image-20250331164049-15.jpeg]]
744 744  
730 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS03A%20-%20Outdoor%20LoRaWAN%20OpenClose%20Door%20Sensor%20Manual/WebHome/1654746674738-826.png?rev=1.1||alt="1654746674738-826.png"]]
745 745  
746 -[[image:image-20250331164119-16.jpeg]]
747 747  
733 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS03A%20-%20Outdoor%20LoRaWAN%20OpenClose%20Door%20Sensor%20Manual/WebHome/1654746646379-591.png?rev=1.1||alt="1654746646379-591.png"]]
748 748  
749 -[[image:image-20250331164144-17.jpeg]]
750 750  
736 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS03A%20-%20Outdoor%20LoRaWAN%20OpenClose%20Door%20Sensor%20Manual/WebHome/1654746549277-209.png?rev=1.1||alt="1654746549277-209.png"]]
751 751  
752 -[[image:image-20250331164208-18.jpeg]]
753 753  
739 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS03A%20-%20Outdoor%20LoRaWAN%20OpenClose%20Door%20Sensor%20Manual/WebHome/1654746593411-887.png?rev=1.1||alt="1654746593411-887.png"]]
754 754  
741 +
755 755  == 2.7 Frequency Plans ==
756 756  
757 757  
... ... @@ -920,7 +920,7 @@
920 920  * (((
921 921  (% style="color:#037691" %)**AT+TTRIG1=1,30** (%%) **~-~->** When the **Keep Status** change from close to open, and device remains in open status for more than 30 seconds. DS03A-LB/LS will send an uplink packet, the Alarm1 bit(the second bit of 1^^st^^ byte of payload) on this uplink packet is set to 1.
922 922  
923 -(% style="color:#037691" %)**AT+TTRIG1=0,30** (%%) **~-~->** When the **Keep Status** change from open to close, and device remains in close status for more than 30 seconds. DS03A-LB/LS will send an uplink packet, the Alarm1 bit (the second bit of 1^^st^^ byte of payload) on this uplink packet is set to 1.
910 +(% style="color:#037691" %)**AT+TTRIG1=0,30** (%%) **~-~->** When the **Keep Status** change from open to close, and device remains in open status for more than 30 seconds. DS03A-LB/LS will send an uplink packet, the Alarm1 bit (the second bit of 1^^st^^ byte of payload) on this uplink packet is set to 1.
924 924  )))
925 925  
926 926  * (((
... ... @@ -942,7 +942,7 @@
942 942  * (((
943 943  (% style="color:#037691" %)**AT+TTRIG2=1,30** (%%) **~-~->** When the **Keep Status** change from close to open, and device remains in open status for more than 30 seconds. DS03A-LB/LS will send an uplink packet, the Alarm2 bit (the second bit of 12^^st^^ byte of payload) on this uplink packet is set to 1.
944 944  
945 -(% style="color:#037691" %)**AT+TTRIG2=0,30** (%%) **~-~->** When the **Keep Status** change from open to close, and device remains in close status for more than 30 seconds. DS03A-LB/LS will send an uplink packet, the Alarm2 bit (the second bit of 12^^st^^ byte of payload) on this uplink packet is set to 1.
932 +(% style="color:#037691" %)**AT+TTRIG2=0,30** (%%) **~-~->** When the **Keep Status** change from open to close, and device remains in open status for more than 30 seconds. DS03A-LB/LS will send an uplink packet, the Alarm2 bit (the second bit of 12^^st^^ byte of payload) on this uplink packet is set to 1.
946 946  )))
947 947  
948 948  * (((
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