Wiki source code of LDS02 - LoRaWAN Door Sensor User Manual

Version 47.21 by Xiaoling on 2022/06/14 16:14

version	line-number	content
2.2	1	(% style="text-align:center" %)
33.2	2	[[image:1654679359875-169.png]]
1.1	3
	4
	5
47.14	6
	7	Table of Contents:
	8
17.3	9	{{toc/}}
1.1	10
	11
	12
17.3	13
	14
2.2	15	= 1. Introduction =
1.1	16
33.2	17	== 1.1 What is LDS02 LoRaWAN Door Sensor ==
1.1	18
	19
3.2	20	(((
47.9	21	(((
33.5	22	The Dragino LDS02 is a (% style="color:#037691" %)LoRaWAN Door Sensor(%%). It detects door open/close status and uplink to IoT server via LoRaWAN network. user can see the door status, open time, open counts in the IoT Server.
47.9	23	)))
1.1	24
47.9	25	(((
33.5	26	LDS02 is powered by (% style="color:#037691" %)2 x AAA batteries(%%) and target for long time use, these two batteries can provide about 16,000 ~~ 70,000 uplink packets. After battery running out, user can easily open the enclosure and replace with 2 common AAA batteries.
47.9	27	)))
1.2	28
47.9	29	(((
33.5	30	The LDS02 will send periodically data every day as well as for each door open/close action. It also (% style="color:#037691" %)counts the door open times(%%) and (% style="color:#037691" %)calculate last door open duration(%%). User can also disable the uplink for each open/close event, instead, device can count each open event and uplink periodically.
47.9	31	)))
1.2	32
47.9	33	(((
33.5	34	LDS02 has the (% style="color:#037691" %)open alarm feature(%%), user can set this feature so device will send Alarm if the door has been open for a certain time.
47.9	35	)))
33.2	36
47.9	37	(((
33.5	38	Each LDS02 is (% style="color:#037691" %)pre-load with a set of unique keys(%%) for LoRaWAN registration, register these keys to LoRaWAN server and it will auto connect after power on.
47.21	39
	40
3.2	41	)))
47.9	42	)))
1.2	43
34.2	44	[[image:image-20220608171947-2.png]]
1.2	45
	46
	47
3.3	48	== 1.2 Features ==
1.2	49
	50	* LoRaWAN Class A v1.0.3
	51	* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	52	* SX1262 LoRa Core
	53	* Water Leak detect
	54	* 2 x AAA LR03 Batteries
	55	* AT Commands to change parameters
	56	* Uplink on periodically and open/close action
	57	* Remote configure parameters via LoRa Downlink
	58	* Firmware upgradable via program port
	59
47.14	60
	61
3.4	62	== 1.3 Applications ==
	63
1.2	64	* Smart Buildings & Home Automation
	65	* Logistics and Supply Chain Management
	66	* Smart Metering
	67	* Smart Agriculture
	68	* Smart Cities
	69	* Smart Factory
	70
47.15	71
	72
5.2	73	== 1.4 Dimension ==
1.2	74
34.3	75	Unit: mm
1.2	76
37.2	77	[[image:1654680563545-120.png]]
1.2	78
5.2	79
37.2	80	[[image:1654680510816-654.png]]
5.2	81
37.2	82
5.2	83	== 1.5 Firmware Change log ==
	84
26.8	85	(((
37.2	86	(((
	87	LDS02 use the same firmware as LDS01.
26.8	88	)))
1.2	89
26.8	90	(((
37.2	91	[[LDS02 Image files – Download link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS01/Firmware/]]
26.8	92	)))
37.2	93	)))
1.2	94
	95
37.3	96	= 2. Power ON LDS02 =
1.2	97
37.3	98	When receive the LDS02, please open the enclosure and add 2 x AAA batteries to power it. The [[LED>>\|\|anchor="H4.7LEDs"]] will blink when device is powered.
1.2	99
	100
37.4	101	= 3. How to install LDS02 =
1.2	102
7.4	103	(((
37.4	104	(((
	105	When install the LDS02 on wall. Please make sure install as below so the marks will close to each other when close the door.
7.4	106	)))
1.2	107
37.4	108	(((
	109	Open/Close threshold range: ~~ 25mm
	110	)))
	111	)))
1.2	112
38.2	113	[[image:1654680716522-793.png]]
1.2	114
	115
37.4	116
7.2	117	= 4. Operation Mode =
1.2	118
7.2	119	== 4.1 How it works? ==
1.2	120
26.5	121	(((
46.2	122	The LDS02 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and [[power on>>\|\|anchor="H2.PowerONLDS02"]] the LDS02. It will auto join the network via OTAA.
26.5	123	)))
1.2	124
26.5	125	(((
7.3	126	In case user can’t set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>\|\|anchor="H6.UseATCommand"]] to set the keys in the devices.
26.5	127	)))
1.2	128
	129
7.3	130	== 4.2 Example to join LoRaWAN network ==
7.2	131
1.6	132	Here shows an example for how to join the [[TTN V3 Network>>url:https://eu1.cloud.thethings.network/]]. Below is the network structure, we use [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]] as LoRaWAN gateway here.
1.2	133
39.2	134	[[image:1654680810108-149.png]]
1.2	135
	136
9.6	137	(((
39.4	138	The LDS02 in installed on the door edge to detect the open / close event. And send the status to LoRaWAN server. The LDS02 will uplink two type of messages to the server.
9.6	139	)))
1.2	140
9.6	141	* (((
	142	A keep-alive message which send once per day.
	143	)))
	144	* (((
39.3	145	A door event message when there is a door open/close. ([[Alarm event can be disabled>>\|\|anchor="H7.3CanIdisableuplinkforeacheventtosavebatterylife3F"]])
9.6	146	)))
1.2	147
9.6	148	(((
29.2	149
	150
47.10	151	(((
1.2	152	The LG308 is already set to connect to [[TTN V3 network >>url:https://eu1.cloud.thethings.network/]]. What we need to now is only configure the TTN V3:
9.6	153	)))
47.10	154	)))
1.2	155
9.6	156	(((
39.4	157	(% style="color:blue" %)Step 1(%%): Create a device in TTN V3 with the OTAA keys from LDS02.
9.6	158	)))
1.2	159
9.6	160	(((
39.4	161	Each LDS02 is shipped with a sticker with unique device EUI:
9.6	162	)))
1.2	163
9.2	164	[[image:1654671040430-368.png]]
1.2	165
	166
	167	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
	168
47.16	169
14.3	170	Add APP EUI in the application
1.2	171
11.2	172	[[image:1654671794691-956.png]]
1.2	173
	174
11.2	175	[[image:1654671809850-574.png]]
1.2	176
12.2	177	[[image:1654671820156-640.png]]
1.2	178
	179
40.2	180	[[image:1654681258096-500.png]]
1.2	181
	182
47.16	183
14.2	184	Add APP KEY and DEV EUI
1.2	185
40.2	186	[[image:1654671889112-678.png]]
1.2	187
40.2	188
47.11	189	(((
47.16	190	(% style="color:blue" %)Step 2(%%): [[Power on>>\|\|anchor="H2.PowerONLDS02"]] LDS02 and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
47.11	191	)))
1.2	192
	193
43.2	194	[[image:1654681390551-993.png]]
1.2	195
40.2	196
	197
14.5	198	== 4.3 Uplink Payload ==
	199
26.11	200
43.2	201	Uplink Payload total 10 bytes.
1.2	202
43.6	203	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:480px" %)
43.4	204	\|=(% style="width: 80px;" %)Size(bytes)\|=(% style="width: 80px;" %)2\|=(% style="width: 80px;" %)1\|=(% style="width: 80px;" %)3\|=(% style="width: 80px;" %)3\|=(% style="width: 80px;" %)1
43.2	205	\|value\|Status&BAT\|(((
	206	MOD
1.2	207
43.2	208	Always:0x01
	209	)))\|Total open door events\|(((
	210	Last door open
26.10	211
43.2	212	duration (unit: min)
43.4	213	)))\|[[Alarm>>\|\|anchor="H4.6AlarmBaseonTimeout"]]
43.2	214
16.2	215	Example:
1.2	216
43.2	217	[[image:1654681706301-731.png]]
1.2	218
43.2	219	[[image:1654681714641-440.png]]
1.2	220
43.2	221
16.3	222	(((
43.3	223	Example Payload Decoder in TTN V3: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS02/Payload/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS01/Payload/]]
16.3	224	)))
1.2	225
	226
16.4	227	== 4.4 Downlink Payload ==
1.2	228
26.9	229
16.9	230	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:410px" %)
16.7	231	\|=(% style="width: 180px;" %)Downlink Control Type\|=(% style="width: 80px;" %)Type Code\|=(% style="width: 150px;" %)Downlink payload size(bytes)
	232	\|(% style="width:180px" %)TDC (Transmit Time Interval—Keep Alive Interval)\|(% style="width:80px" %)0x01\|(% style="width:150px" %)4
	233	\|(% style="width:180px" %)RESET\|(% style="width:80px" %)0x04\|(% style="width:224px" %)2
17.4	234	\|(% style="width:180px" %)[[Set confirmed mode>>\|\|anchor="HTypeCode0x05"]]\|(% style="width:80px" %)0x05\|(% style="width:150px" %)2
	235	\|(% style="width:180px" %)[[Clear Counting>>\|\|anchor="HTypeCode0xA6"]]\|(% style="width:80px" %)0xA6\|(% style="width:150px" %)2
	236	\|(% style="width:180px" %)[[Enable/Disable Alarm>>\|\|anchor="HTypeCode0xA7"]]\|(% style="width:80px" %)0xA7\|(% style="width:150px" %)2
	237	\|(% style="width:180px" %)[[Control ADR/DR>>\|\|anchor="HTypeCode0xA8"]]\|(% style="width:80px" %)0xA8\|(% style="width:150px" %)3
	238	\|(% style="width:180px" %)[[Set Alarm Timeout>>\|\|anchor="HTypeCode0xA9"]]\|(% style="width:80px" %)0xA9\|(% style="width:150px" %)4
1.2	239
	240	Example Downlink payload setting in TTN V3:
	241
17.2	242	[[image:1654673412319-976.png]]
1.2	243
	244
17.3	245	=== (% style="color:#037691" %)Type Code 0x01(%%) ===
1.2	246
43.7	247	If the payload=0100003C, means to control the LDS02’s Keep Alive interval to 0x00003C=60(S)
1.2	248
	249
17.3	250	=== (% style="color:#037691" %)Type Code 0x04(%%) ===
1.2	251
43.7	252	If payload = 0x04FF, it will reset the LDS02.
1.2	253
	254
17.3	255	=== (% style="color:#037691" %)Type Code 0x05(%%) ===
1.2	256
47.11	257	(((
1.2	258	0x05 00: Set uplink to LoRaWAN unconfirmed mode
47.11	259	)))
1.2	260
47.11	261	(((
1.2	262	0x05 01: Set uplink to LoRaWAN confirmed mode
47.11	263	)))
1.2	264
	265
17.3	266	=== (% style="color:#037691" %)Type Code 0xA6(%%) ===
1.2	267
47.11	268	(((
1.2	269	Example: 0xA601: Clear Counting
43.7	270	For LDS02: reset both count number and time.
47.11	271	)))
1.2	272
	273
17.3	274	=== (% style="color:#037691" %)Type Code 0xA7(%%) ===
1.2	275
47.11	276	(((
1.2	277	0xA7 01 : Equal to AT+DISALARM=1
47.11	278	)))
1.2	279
47.11	280	(((
1.2	281	0xA7 00 : Equal to AT+DISALARM=0
47.11	282	)))
1.2	283
	284
17.3	285	=== (% style="color:#037691" %)Type Code 0xA8(%%) ===
1.2	286
47.11	287	(((
1.2	288	Format: 0xA8 aa bb
47.11	289	)))
1.2	290
47.11	291	(((
1.2	292	aa: 1: Enable ADR; 0: Disable ADR (Same as AT+CADR command)
47.11	293	)))
1.2	294
47.11	295	(((
1.2	296	bb: set DR (Same as AT+CDATARATE ,only valid after ADR=0)
47.11	297	)))
1.2	298
47.11	299	(((
1.2	300	Example: 0x A8 00 02 : Set ADR=0 and DR=1
47.11	301	)))
1.2	302
	303
17.3	304	=== (% style="color:#037691" %)Type Code 0xA9(%%) ===
1.2	305
17.7	306	See [[Alarm Base Timeout>>\|\|anchor="H4.6AlarmBaseonTimeout"]] for detail.
1.2	307
	308
17.8	309	== 4.5 Integrate with Datacake ==
1.2	310
21.5	311	(((
47.12	312	(((
1.2	313	Datacake provides a human friendly interface to show the sensor data, once we have data in TTN V3, we can use Datacake to connect to TTN V3 and see the data in Datacake. Below are the steps:
21.5	314	)))
47.12	315	)))
1.2	316
47.12	317	(((
	318
	319	)))
1.2	320
47.12	321	(((
19.2	322	(% style="color:blue" %)Step 1(%%): Be sure that your device is programmed and properly connected to the network at this time.
47.12	323	)))
1.2	324
47.12	325	(((
19.2	326	(% style="color:blue" %)Step 2(%%): To configure the Application to forward data to Datacake you will need to add integration. To add the Datacake integration, perform the following steps:
47.12	327	)))
1.2	328
	329
19.2	330	[[image:1654674520913-519.png]]
1.2	331
	332
19.2	333	[[image:1654674530910-914.png]]
1.2	334
	335
21.2	336	[[image:1654674543078-401.png]]
1.2	337
	338
21.3	339	(% style="color:blue" %)Step 3(%%): Create an account or log in Datacake.
1.2	340
43.8	341	(% style="color:blue" %)Step 4(%%): Search LDS02 and add DevEUI.
1.2	342
21.2	343	[[image:1654674556510-911.png]]
1.2	344
	345
17.8	346	== 4.6 Alarm Base on Timeout ==
1.2	347
23.4	348	(((
43.8	349	(((
	350	LDS02 can monitor the timeout for a status change, this feature can be used to monitor some event such as open fridge too long etc.
23.4	351	)))
1.2	352
23.4	353	(((
1.2	354	User configure this feature by using:
23.4	355	)))
43.8	356	)))
1.2	357
23.4	358	(((
43.8	359	(((
23.4	360
	361	)))
43.8	362	)))
1.2	363
23.4	364	(((
43.8	365	(((
21.5	366	(% style="color:blue" %)AT Command(%%) to configure:
23.4	367	)))
43.8	368	)))
1.2	369
23.4	370	* (((
43.8	371	(((
23.4	372	AT+TTRIG=1,30 ~-~-> When status change from close to open, and device keep in open
	373	)))
43.8	374	)))
1.2	375
23.4	376	(((
43.8	377	(((
47.6	378	status for more than 30 seconds. LDS02 will send an uplink packet, the Alarm bit (the lowest bit of 10^^th^^ byte of payload) on this uplink packet is set to 1.
23.4	379	)))
43.8	380	)))
1.2	381
23.4	382	* (((
43.8	383	(((
23.4	384	AT+TTIG=0,0 ~-~-> Default Value, disable timeout Alarm.
	385	)))
43.8	386	)))
1.2	387
23.4	388	(((
43.8	389	(((
47.17	390
	391
21.5	392	(% style="color:blue" %)Downlink Command(%%) to configure:
23.4	393	)))
43.8	394	)))
1.2	395
23.4	396	(((
43.8	397	(((
21.6	398	Command: 0xA9 aa bb cc
23.4	399	)))
43.8	400	)))
1.2	401
23.4	402	(((
43.8	403	(((
1.2	404	A9: Command Type Code
23.4	405	)))
43.8	406	)))
1.2	407
23.4	408	(((
43.8	409	(((
1.2	410	aa: status to be monitor
23.4	411	)))
43.8	412	)))
1.2	413
23.4	414	(((
43.8	415	(((
1.2	416	bb cc: timeout.
23.4	417	)))
43.8	418	)))
1.2	419
23.4	420	(((
43.8	421	(((
23.4	422
	423	)))
43.8	424	)))
1.2	425
23.4	426	(((
43.8	427	(((
1.2	428	If user send 0xA9 01 00 1E: equal to AT+TTRIG=1,30
23.4	429	)))
43.8	430	)))
1.2	431
23.4	432	(((
43.8	433	(((
1.2	434	Or
23.4	435	)))
43.8	436	)))
1.2	437
23.4	438	(((
43.8	439	(((
1.2	440	0xA9 00 00 00: Equal to AT+TTRIG=0,0. Disable timeout Alarm.
23.4	441	)))
43.8	442	)))
1.2	443
	444
	445
17.8	446	== 4.7 LEDs ==
1.2	447
25.9	448
21.7	449	(% border="1" cellspacing="10" style="background-color:#ffffcc; width:463px" %)
	450	\|=(% style="width: 184px;" %)Action\|=(% style="width: 275px;" %)LED behavior
	451	\|(% style="width:184px" %)Power On\|(% style="width:275px" %)(% style="color:green" %)GREEN on 1s, (% style="color:red" %)RED on 1s,(%%) (% style="color:blue" %)BLUE on 1s(%%)
	452	\|(% style="width:184px" %)Joined successful\|(% style="width:275px" %)(% style="color:green" %)GRENN LED (%%)on 5s
	453	\|(% style="width:184px" %)Send an uplink message\|(% style="width:275px" %)(% style="color:green" %)GREEN LED(%%) blinks once
	454	\|(% style="width:184px" %)Got a downlink message\|(% style="width:275px" %)(% style="color:blue" %)BLUE LED(%%) blinks once
1.2	455
43.9	456
21.8	457	= 5. Battery & How to replace =
	458
	459	== 5.1 Battery Type and replace ==
	460
22.3	461	(((
43.10	462	LDS02 is equipped with 2 x AAA LR03 batteries. If the batteries running low (shows 2.1v in the platform). User can buy generic AAA battery and replace it.
1.2	463
43.10	464	Note:
	465
	466	1. The LDS02 doesn’t have any screw, use can use nail to open it by the middle.
	467	1. Make sure the direction is correct when install the AAA batteries.
22.3	468	)))
1.2	469
22.3	470	(((
22.2	471	(% style="color:red" %)Important Notice: Make sure use new AAA LR03 battery and the battery doesn’t have broken surface.
22.3	472	)))
1.2	473
22.3	474	(((
	475
	476	)))
1.2	477
22.3	478	(((
1.2	479	Example of AAA LR03 batter:
22.3	480	)))
1.2	481
22.2	482	[[image:1654675278044-307.png]]
1.2	483
	484
22.4	485	== 5.2 Power Consumption Analyze ==
	486
26.6	487	(((
1.2	488	Dragino battery powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimate battery life:
26.6	489	)))
1.2	490
26.6	491	(((
1.2	492	[[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
26.6	493	)))
1.2	494
	495
22.4	496	= 6. Use AT Command =
1.2	497
22.4	498	== 6.1 Access AT Command ==
	499
47.2	500	LDS02 supports AT Command set. User can use a USB to TTL adapter to configure LDS02 via use AT command, as below.
1.2	501
44.2	502	[[image:image-20220609085453-1.png]]
1.2	503
	504
44.3	505	(% style="background-color:yellow" %)USB to TTL <- -> LDS02
1.2	506
44.3	507	(% style="background-color:yellow" %)RX <- -> TXD
1.2	508
44.3	509	(% style="background-color:yellow" %)TX <- -> RXD
23.7	510
	511	(% style="background-color:yellow" %)GND <- -> GND
	512
24.3	513
	514	(((
44.3	515	In PC, User needs to set (% style="color:#037691" %)serial tool(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)115200(%%) to access to access serial console of LDS02. Below is the output for reference:
24.3	516	)))
1.2	517
24.3	518	(((
24.2	519	The AT Access password is (% style="color:red" %)123456.
24.3	520	)))
1.2	521
24.2	522	[[image:1654675618022-630.png]]
1.2	523
44.3	524
26.7	525	(((
24.4	526	Each AT Command need to (% style="color:red" %)add an ENTER(%%) at the end before send.
26.7	527	)))
1.2	528
26.7	529	(((
24.4	530	When entering the first command, the (% style="color:red" %)RED LED(%%) will on and user can now input AT Commands. After input all needed AT Commands, please input AT+CLPM=1 to set the device to work in Low Power mode and (% style="color:red" %)RED LED(%%) will be off.
26.7	531	)))
1.2	532
26.7	533	(((
1.2	534	More detail AT Command manual can be found at [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS01/]]
26.7	535	)))
1.2	536
	537
1.5	538	= 7. FAQ =
	539
	540	== 7.1 How to upgrade the image? ==
	541
44.4	542	User can upgrade the of LDS02 for bug fix, new features, or change working region. The upgrade instruction is here: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
1.2	543
	544
1.5	545	== 7.2 How to change the LoRa Frequency Bands/Region? ==
1.2	546
24.7	547	If user has for example US915 frequency and want to change it to AS923 frequency. User can follow the introduction for [[how to upgrade image>>\|\|anchor="H7.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1.2	548
	549
1.5	550	== 7.3 Can I disable uplink for each event to save battery life? ==
	551
1.2	552	Yes, User can use below method to disable this:
	553
47.20	554
1.6	555	(% style="color:#4f81bd" %)via AT Command:
1.2	556
	557	AT+DISALARM=1, End node will only send packet in TDC time.
	558
1.6	559	AT+DISALARM=0, End node will send packet in TDC time or status change for door sensor.
1.2	560
47.20	561
1.6	562	(% style="color:#4f81bd" %)via LoRaWAN downlink Command:
1.2	563
	564	0xA701 : Equal to AT+DISALARM=1
	565
	566	0xA700 : Equal to AT+DISALARM=0
	567
	568
1.5	569	= 8. Order Info =
1.2	570
44.5	571	Part Number: (% style="color:blue" %)LDS02-XXX(%%)
1.2	572
1.6	573	(% style="color:blue" %)XXX:
1.2	574
1.10	575	* (% style="color:red" %)EU433(%%): frequency bands EU433
	576	* (% style="color:red" %)EU868(%%): frequency bands EU868
	577	* (% style="color:red" %)KR920(%%): frequency bands KR920
1.6	578	* (% style="color:red" %)CN470(%%): frequency bands CN470
1.10	579	* (% style="color:red" %)AS923(%%): frequency bands AS923
1.6	580	* (% style="color:red" %)AU915(%%): frequency bands AU915
1.10	581	* (% style="color:red" %)US915(%%): frequency bands US915
	582	* (% style="color:red" %)IN865(%%): frequency bands IN865
1.6	583	* (% style="color:red" %)CN779(%%): frequency bands CN779
1.2	584
47.18	585
	586
1.4	587	= 9. Packing Info =
	588
47.13	589	(((
1.2	590	Package Includes:
47.13	591	)))
1.2	592
47.13	593	* (((
	594	LDS02 x 1
	595	)))
1.2	596
47.13	597	(((
44.7	598	Dimension and weight:
47.13	599	)))
44.6	600
47.13	601	* (((
	602	Device Size: 69.2 x 29.2 x 14.8 mm
47.19	603
	604
	605
47.13	606	)))
44.6	607
31.2	608	= 10. Support =
1.2	609
	610	* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
	611	* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
	612
44.3	613

Wiki source code of LDS02 - LoRaWAN Door Sensor User Manual

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