Wiki source code of LHT65N LoRaWAN Temperature & Humidity Sensor Manual

Version 76.4 by Xiaoling on 2022/05/23 15:37

version	line-number	content
55.2	1	(% style="text-align:center" %)
56.2	2	[[image:image-20220523115324-1.jpeg\|\|height="500" width="500"]]
55.2	3
2.1	4
56.2	5	LHT65N LoRaWAN Temperature & Humidity Sensor Manual
	6
	7
	8
	9	Table of Contents：
	10
55.2	11	{{toc/}}
2.1	12
55.4	13
	14
52.2	15	= 1.Introduction =
	16
55.2	17	== 1.1 What is LHT65N Temperature & Humidity Sensor ==
52.2	18
56.3	19	(((
56.2	20	The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% style="color:#4f81bd" %)built-in Temperature & Humidity sensor(%%) and has an external sensor connector to connect to an external (% style="color:#4f81bd" %)Temperature Sensor(%%).
56.3	21	)))
2.1	22
56.3	23	(((
2.1	24	The LHT65N allows users to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
56.3	25	)))
2.1	26
56.3	27	(((
6.1	28	LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
56.3	29	)))
2.1	30
56.3	31	(((
2.1	32	LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
56.3	33	)))
2.1	34
56.3	35	(((
56.2	36	LHT65N supports (% style="color:#4f81bd" %)Datalog Feature(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
56.3	37	)))
2.1	38
56.3	39	(((
6.1	40	*The actual battery life depends on how often to send data, please see the battery analyzer chapter.
56.3	41	)))
2.1	42
55.2	43	== 1.2 Features ==
2.1	44
	45	* Wall mountable
	46	* LoRaWAN v1.0.3 Class A protocol
	47	* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
	48	* AT Commands to change parameters
	49	* Remote configure parameters via LoRaWAN Downlink
15.1	50	* Firmware upgradeable via program port
6.1	51	* Built-in 2400mAh battery for up to 10 years of use.
2.1	52	* Built-in Temperature & Humidity sensor
	53	* Optional External Sensors
6.1	54	* Tri-color LED to indicate working status
2.1	55	* Datalog feature
	56
55.2	57	== 1.3 Specification ==
2.1	58
56.3	59	(((
2.1	60	Built-in Temperature Sensor:
56.3	61	)))
2.1	62
56.3	63	* (((
	64	Resolution: 0.01 °C
	65	)))
	66	* (((
	67	Accuracy Tolerance : Typ ±0.3 °C
	68	)))
	69	* (((
	70	Long Term Drift: < 0.02 °C/yr
	71	)))
	72	* (((
	73	Operating Range: -40 ~~ 85 °C
	74	)))
2.1	75
56.3	76	(((
2.1	77	Built-in Humidity Sensor:
56.3	78	)))
2.1	79
56.3	80	* (((
	81	Resolution: 0.04 %RH
	82	)))
	83	* (((
	84	Accuracy Tolerance : Typ ±3 %RH
	85	)))
	86	* (((
	87	Long Term Drift: < 0.02 °C/yr
	88	)))
	89	* (((
	90	Operating Range: 0 ~~ 96 %RH
	91	)))
2.1	92
56.3	93	(((
6.1	94	External Temperature Sensor:
56.3	95	)))
2.1	96
56.3	97	* (((
	98	Resolution: 0.0625 °C
	99	)))
	100	* (((
	101	±0.5°C accuracy from -10°C to +85°C
	102	)))
	103	* (((
	104	±2°C accuracy from -55°C to +125°C
	105	)))
	106	* (((
	107	Operating Range: -55 °C ~~ 125 °C
	108	)))
2.1	109
55.2	110	= 2. Connect LHT65N to IoT Server =
18.1	111
55.2	112	== 2.1 How does LHT65N work? ==
18.1	113
56.4	114	(((
18.1	115	LHT65N is configured as LoRaWAN OTAA Class A mode by default. Each LHT65N is shipped with a worldwide unique set of OTAA keys. To use LHT65N in a LoRaWAN network, first, we need to put the OTAA keys in LoRaWAN Network Server and then activate LHT65N.
56.4	116	)))
18.1	117
56.4	118	(((
18.1	119	If LHT65N is under the coverage of this LoRaWAN network. LHT65N can join the LoRaWAN network automatically. After successfully joining, LHT65N will start to measure environment temperature and humidity, and start to transmit sensor data to the LoRaWAN server. The default period for each uplink is 20 minutes.
56.4	120	)))
18.1	121
55.2	122	== 2.2 How to Activate LHT65N? ==
18.1	123
	124	The LHT65N has two working modes:
	125
	126	* Deep Sleep Mode: LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
19.1	127	* Working Mode: In this mode, LHT65N works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65 will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode.
18.1	128
56.5	129	(((
18.1	130	The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
56.5	131	)))
18.1	132
	133	[[image:image-20220515123819-1.png\|\|height="379" width="317"]]
	134
76.2	135	[[image:image-20220523153201-19.png\|\|height="163" width="739"]]
18.1	136
55.2	137	== 2.3 Example to join LoRaWAN network ==
32.1	138
	139	(% class="wikigeneratedid" %)
	140	This section shows an example of how to join the TTN V3 LoRaWAN IoT server. Use with other LoRaWAN IoT servers is of a similar procedure.
	141
	142	(% class="wikigeneratedid" %)
	143	[[image:image-20220522232442-1.png\|\|height="387" width="648"]]
	144
	145	Assume the LPS8N is already set to connect to [[TTN V3 network>>url:https://eu1.cloud.thethings.network]], So it provides network coverage for LHT65N. Next we need to add the LHT65N device in TTN V3:
	146
	147
55.3	148	=== 2.3.1 Step 1: Create Device n TTN ===
32.1	149
	150	Create a device in TTN V3 with the OTAA keys from LHT65N.
	151
	152	Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
	153
	154	[[image:image-20220522232812-2.png\|\|height="219" width="279"]]
	155
	156	User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
	157
	158	Add APP EUI in the application.
	159
	160	[[image:image-20220522232916-3.png]]
	161
	162	[[image:image-20220522232932-4.png]]
	163
	164	[[image:image-20220522232954-5.png]]
	165
	166	Note: LHT65N use same payload as LHT65.
	167
	168	[[image:image-20220522233026-6.png]]
	169
	170
	171	Input APP EUI, APP KEY and DEV EUI:
	172
	173	[[image:image-20220522233118-7.png]]
	174
	175
55.2	176	=== 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
32.1	177
	178	Use ACT button to activate LHT65N and it will auto-join to the TTN V3 network. After join success, it will start to upload sensor data to TTN V3 and user can see in the panel.
	179
57.3	180	[[image:image-20220522233300-8.png\|\|height="219" width="722"]]
32.1	181
	182
55.3	183	== 2.4 Uplink Payload ==
35.1	184
57.2	185	The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% style="color:#4f81bd" %)every 20 minutes(%%) send one uplink by default.
35.1	186
57.2	187	After each uplink, the (% style="color:blue" %)BLUE LED(%%) will blink once.
35.1	188
76.2	189	(% border="1" style="background-color:#ffffcc; color:green; width:426px" %)
	190	\|(% style="width:97px" %)(((
57.10	191	Size(bytes)
76.2	192	)))\|(% style="width:39px" %)(((
57.10	193	2
76.2	194	)))\|(% style="width:100px" %)(((
57.10	195	2
76.2	196	)))\|(% style="width:77px" %)(((
57.10	197	2
76.2	198	)))\|(% style="width:47px" %)(((
	199	1
57.10	200	)))\|(% style="width:51px" %)(((
	201	4
	202	)))
76.2	203	\|(% style="width:97px" %)(((
57.10	204	Value
76.2	205	)))\|(% style="width:39px" %)(((
57.10	206	[[BAT>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.2BAT-BatteryInfo]]
76.2	207	)))\|(% style="width:100px" %)(((
57.10	208	(((
76.2	209	[[Built-In Temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]]
57.10	210	)))
76.2	211	)))\|(% style="width:77px" %)(((
57.10	212	(((
57.8	213	[[Built-in>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
57.10	214	)))
57.8	215
57.10	216	(((
57.8	217	[[Humidity>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
57.10	218	)))
76.2	219	)))\|(% style="width:47px" %)(((
	220	[[Ext>>path:#Extension_Sensor]] #
57.10	221	)))\|(% style="width:51px" %)(((
	222	[[Ext value>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.6Extvalue]]
	223	)))
57.8	224
35.1	225	* The First 6 bytes: has fix meanings for every LHT65N.
	226	* The 7th byte (EXT #): defines the external sensor model.
	227	* The 8^^th^^ ~~ 11^^th^^ byte: the value for external sensor value. The definition is based on external sensor type. (If EXT=0, there won’t be these four bytes.)
	228
55.4	229	=== 2.4.1 Decoder in TTN V3 ===
35.1	230
	231	When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65N decoder in TTNv3 for friendly reading.
	232
	233	Below is the position to put the decoder and LHT65N decoder can be download from here:
	234
42.1	235	[[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]
35.1	236
57.4	237	[[image:image-20220522234118-10.png\|\|height="353" width="729"]]
35.1	238
55.4	239	=== 2.4.2 BAT-Battery Info ===
42.1	240
	241	These two bytes of BAT include the battery state and the actually voltage
	242
76.2	243	[[image:image-20220523152839-18.png]]
42.1	244
57.5	245	[[image:image-20220522235639-1.png\|\|height="139" width="727"]]
42.1	246
	247	Check the battery voltage for LHT65N.
	248
	249	* BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
	250	* Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
	251
55.4	252	=== 2.4.3 Built-in Temperature ===
42.1	253
57.5	254	[[image:image-20220522235639-2.png\|\|height="138" width="722"]]
42.1	255
	256	* Temperature: 0x0ABB/100=27.47℃
	257
	258	[[image:image-20220522235639-3.png]]
	259
	260	* Temperature: (0xF5C6-65536)/100=-26.18℃
	261
55.4	262	=== 2.4.4 Built-in Humidity ===
42.1	263
57.5	264	[[image:image-20220522235639-4.png\|\|height="138" width="722"]]
42.1	265
	266	* Humidity: 0x025C/10=60.4%
	267
55.4	268	=== 2.4.5 Ext # ===
42.1	269
	270	Bytes for External Sensor:
	271
76.2	272	[[image:image-20220523152822-17.png]]
42.1	273
55.4	274	=== 2.4.6 Ext value ===
42.1	275
55.4	276	==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
42.1	277
	278	[[image:image-20220522235639-5.png]]
	279
	280	* DS18B20 temp=0x0ADD/100=27.81℃
	281
	282	The last 2 bytes of data are meaningless
	283
	284	[[image:image-20220522235639-6.png]]
	285
	286	* External temperature= (0xF54F-65536)/100=-27.37℃
	287
57.5	288	(((
42.1	289	The last 2 bytes of data are meaningless
57.5	290	)))
42.1	291
57.5	292	(((
42.1	293	If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
57.5	294	)))
42.1	295
	296
55.4	297	==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
42.1	298
	299	Timestamp mode is designed for LHT65N with E3 probe, it will send the uplink payload with Unix timestamp. With the limitation of 11 bytes (max distance of AU915/US915/AS923 band), the time stamp mode will be lack of BAT voltage field, instead, it shows the battery status. The payload is as below:
	300
76.4	301	(% border="1" style="background-color:#ffffcc; color:green; width:468px" %)
73.2	302	\|(% style="width:96px" %)(((
76.3	303	Size(bytes)
	304	)))\|(% style="width:71px" %)(((
	305	2
	306	)))\|(% style="width:99px" %)(((
	307	2
	308	)))\|(% style="width:132px" %)(((
	309	2
	310	)))\|(% style="width:54px" %)(((
	311	1
	312	)))\|(% style="width:64px" %)(((
	313	4
	314	)))
	315	\|(% style="width:96px" %)(((
73.2	316	Value
	317	)))\|(% style="width:71px" %)(((
	318	[[External temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H4.2SetExternalSensorMode]]
	319	)))\|(% style="width:99px" %)(((
	320	(((
57.5	321	[[Built-In>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]]
73.2	322	)))
42.1	323
73.2	324	(((
57.5	325	[[Temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]]
73.2	326	)))
	327	)))\|(% style="width:132px" %)(((
	328	(((
57.5	329	BAT Status &
73.2	330	)))
42.1	331
73.2	332	(((
	333	[[Built-in Humidity>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
	334	)))
	335	)))\|(% style="width:54px" %)(((
	336	Status & Ext
	337	)))\|(% style="width:64px" %)(((
	338	(((
57.11	339	[[Unix Time Stamp>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H4.1SetTransmitIntervalTime]]
42.1	340	)))
73.2	341	)))
42.1	342
57.6	343	* Battery status & (% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)Built-in Humidity(%%)
42.1	344
57.11	345	(% border="1" style="background-color:#ffffcc; color:green; width:469px" %)
	346	\|(% style="width:65px" %)Bit(bit)\|(% style="width:267px" %)[15:14]\|(% style="width:134px" %)[11:0]
	347	\|(% style="width:65px" %)Value\|(% style="width:267px" %)(((
42.1	348	BAT Status
	349
	350	00(b): Ultra Low ( BAT <= 2.50v)
	351
	352	01(b): Low (2.50v <=BAT <= 2.55v)
	353
	354	10(b): OK (2.55v <= BAT <=2.65v)
	355
	356	11(b): Good (BAT >= 2.65v)
57.11	357	)))\|(% style="width:134px" %)(((
57.5	358	[[Built-in Humidity>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
42.1	359
	360
	361	)))
	362
	363	* Status & Ext Byte
	364
73.2	365	[[image:image-20220523152434-16.png]]
42.1	366
	367	* Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
	368	* Sync time OK: 1: Set time ok，0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server.
	369	* Unix Time Request:1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)
	370
55.4	371	== 2.5 Show data on Datacake ==
42.1	372
47.1	373	Datacake IoT platform provides a human-friendly interface to show the sensor data, once we have sensor data in TTN V3, we can use Datacake to connect to TTN V3 and see the data in Datacake. Below are the steps:
	374
57.6	375	(((
47.1	376	Step 1: Be sure that your device is programmed and properly connected to the LoRaWAN network.
57.6	377	)))
47.1	378
57.6	379	(((
47.1	380	Step 2: Configure your Application to forward data to Datacake you will need to add integration. Go to TTN V3 Console ~-~-> Applications ~-~-> Integrations ~-~-> Add Integrations.
57.6	381	)))
47.1	382
57.6	383	(((
47.1	384	Add Datacake:
57.6	385	)))
47.1	386
	387	[[image:image-20220523000825-7.png\|\|height="262" width="583"]]
	388
	389
	390	Select default key as Access Key:
	391
	392	[[image:image-20220523000825-8.png\|\|height="453" width="406"]]
	393
	394	In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
	395
	396	[[image:image-20220523000825-9.png\|\|height="366" width="392"]]
	397
57.12	398	[[image:image-20220523000825-10.png\|\|height="413" width="728"]]
47.1	399
55.4	400	== 2.6 Datalog Feature ==
47.1	401
51.1	402	This feature is always enabled. When user wants to retrieve the sensor value, he can send a poll command from the IoT platform to ask LHT65N to send the value in the required time slot.
	403
55.4	404	=== 2.6.1 Unix TimeStamp ===
51.1	405
	406	LHT65N uses Unix TimeStamp format based on
	407
	408	[[image:image-20220523001219-11.png\|\|height="97" width="627"]]
	409
	410
57.6	411	(((
51.1	412	User can get this time from link: [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
57.6	413	)))
51.1	414
57.6	415	(((
51.1	416	Below is the converter example
57.6	417	)))
51.1	418
57.11	419	[[image:image-20220523001219-12.png\|\|height="298" width="720"]]
51.1	420
	421	So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
	422
55.4	423	=== 2.6.2 Set Device Time ===
51.1	424
57.11	425	(((
51.1	426	There are two ways to set device’s time:
57.11	427	)))
51.1	428
57.11	429	(((
51.1	430	~1. Through LoRaWAN MAC Command (Default settings)
57.11	431	)))
51.1	432
57.11	433	(((
51.1	434	User need to set SYNCMOD=1 to enable sync time via MAC command.
57.11	435	)))
51.1	436
57.11	437	(((
51.1	438	Once LHT65N Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LHT65N. If LHT65N fails to get the time from the server, LHT65N will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
57.11	439	)))
51.1	440
57.11	441	(((
51.1	442	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.
57.11	443	)))
51.1	444
57.11	445	(((
	446
	447	)))
51.1	448
57.11	449	(((
51.1	450	2. Manually Set Time
57.11	451	)))
51.1	452
57.11	453	(((
51.1	454	User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
57.11	455	)))
51.1	456
55.4	457	=== 2.6.3 Poll sensor value ===
51.1	458
	459	User can poll sensor value based on timestamps from the server. Below is the downlink command.
	460
73.2	461	[[image:image-20220523152302-15.png]]
51.1	462
57.12	463	(((
51.1	464	Timestamp start and Timestamp end use Unix TimeStamp format as mentioned above. Devices will reply with all data log during this time period, use the uplink interval.
57.12	465	)))
51.1	466
57.12	467	(((
	468	For example, downlink command 31 5FC5F350 5FC6 0160 05
	469	)))
51.1	470
57.12	471	(((
51.1	472	Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
57.12	473	)))
51.1	474
57.12	475	(((
51.1	476	Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
57.12	477	)))
51.1	478
	479
55.4	480	=== 2.6.4 Datalog Uplink payload ===
51.1	481
	482	The Datalog poll reply uplink will use below payload format.
	483
57.13	484	(((
58.2	485	Retrieval data payload
57.13	486	)))
51.1	487
58.6	488	(% border="1" style="background-color:#ffffcc; color:green; width:545px" %)
	489	\|(% style="width:93px" %)(((
	490	Size(bytes)
	491	)))\|(% style="width:71px" %)(((
	492	2
	493	)))\|(% style="width:102px" %)(((
	494	2
	495	)))\|(% style="width:86px" %)(((
	496	2
	497	)))\|(% style="width:90px" %)(((
	498	1
	499	)))\|(% style="width:85px" %)(((
	500	4
	501	)))
	502	\|(% style="width:93px" %)(((
	503	Value
	504	)))\|(% style="width:71px" %)(((
	505	[[External sensor data>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.6Extvalue]]
	506	)))\|(% style="width:102px" %)(((
	507	(((
	508	[[Built In>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]]
	509	)))
	510
	511	(((
	512	[[Temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]]
	513	)))
	514	)))\|(% style="width:86px" %)(((
	515	(((
	516	[[Built-in>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
	517	)))
	518
	519	(((
	520	[[Humidity>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
	521	)))
	522	)))\|(% style="width:90px" %)(((
	523	[[Poll message flag & Ext>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.6.4DatalogUplinkpayload]]
	524	)))\|(% style="width:85px" %)(((
	525	(((
57.13	526	[[Unix Time Stamp>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.6.1UnixTimeStamp]]
58.6	527	)))
51.1	528
58.6	529	(((
51.1	530
	531	)))
58.6	532	)))
51.1	533
58.2	534	Poll message flag & Ext
51.1	535
73.2	536	[[image:image-20220523152208-14.png]]
51.1	537
58.8	538	(((
58.2	539	(((
51.1	540	Poll Message Flag: 1: This message is a poll message reply.
58.2	541	)))
73.2	542	)))
51.1	543
58.2	544	* (((
73.2	545	(((
58.2	546	Poll Message Flag is set to 1.
	547	)))
73.2	548	)))
58.2	549	* (((
73.2	550	(((
58.2	551	Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
	552	)))
73.2	553	)))
51.1	554
58.2	555	(((
73.2	556	(((
51.1	557	For example, in US915 band, the max payload for different DR is:
58.2	558	)))
73.2	559	)))
51.1	560
58.2	561	(((
73.2	562	(((
58.2	563	a) DR0: max is 11 bytes so one entry of data
	564	)))
73.2	565	)))
51.1	566
58.2	567	(((
73.2	568	(((
58.2	569	b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
	570	)))
73.2	571	)))
51.1	572
58.2	573	(((
73.2	574	(((
58.2	575	c) DR2: total payload includes 11 entries of data
	576	)))
73.2	577	)))
51.1	578
58.2	579	(((
73.2	580	(((
58.2	581	d) DR3: total payload includes 22 entries of data.
	582	)))
73.2	583	)))
51.1	584
58.2	585	(((
73.2	586	(((
51.1	587	If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0
58.2	588	)))
73.2	589	)))
51.1	590
	591
	592	Example:
	593
	594	If LHT65N has below data inside Flash:
	595
58.2	596	[[image:image-20220523144455-1.png\|\|height="335" width="735"]]
	597
58.4	598	If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
51.1	599
	600	Where : Start time: 60065F97 = time 21/1/19 04:27:03
	601
	602	Stop time 60066DA7= time 21/1/19 05:27:03
	603
	604
	605	LHT65N will uplink this payload.
	606
55.4	607	[[image:image-20220523001219-13.png\|\|height="421" width="727"]]
51.1	608
	609	7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
	610
	611	Where the first 11 bytes is for the first entry:
	612
	613	7FFF089801464160065F97
	614
	615	Ext sensor data=0x7FFF/100=327.67
	616
	617	Temp=0x0898/100=22.00
	618
	619	Hum=0x0146/10=32.6
	620
	621	poll message flag & Ext=0x41,means reply data,Ext=1
	622
	623	Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
	624
55.4	625	== 2.7 Alarm Mode ==
51.1	626
	627	Alarm mode feature is added since firmware v1.5. When device is in Alarm mode, it will check the built-in sensor temperature in a short interval. If the temperature exceeds the pre-configure range, it will send an uplink immediately.
	628
58.10	629	(% style="color:red" %)Note: Alarm mode will increase a little big the power consumption, we recommend extending the normal reading time when enabling this feature.
51.1	630
58.10	631	AT Commands for Alarm mode:
51.1	632
58.10	633	(% class="box infomessage" %)
	634	(((
51.1	635	AT+WMOD=1: Enable/Disable Alarm Mode. (0:Disable, 1: Enable)
58.10	636	)))
51.1	637
58.10	638	(% class="box infomessage" %)
	639	(((
51.1	640	AT+CITEMP=1: The interval to check the temperature for Alarm. (Unit: minute)
58.10	641	)))
51.1	642
55.4	643	== 2.8 LED Indicator ==
18.1	644
58.10	645	(((
19.1	646	The LHT65N has a triple color LED which for easy shows different stage.
58.10	647	)))
19.1	648
58.10	649	(((
19.1	650	While pressing ACT button, the LED will work as per LED status with ACT button.
58.10	651	)))
19.1	652
58.10	653	(((
19.1	654	In a normal working state:
58.10	655	)))
19.1	656
58.10	657	* (((
	658	For each uplink, the BLUE LED or RED LED will blink once.
	659	)))
	660	* (((
	661	BLUE LED when an external sensor is connected
	662	)))
	663	* (((
	664	RED LED when an external sensor is not connected
	665	)))
	666	* (((
	667	For each success downlink, the PURPLE LED will blink once
	668	)))
19.1	669
23.1	670	----
19.1	671
55.4	672	== 2.9 Installation ==
21.1	673
52.1	674	[[image:image-20220516231650-1.png\|\|height="436" width="428"]]
21.1	675
55.4	676	= 3. Sensors & Accessories =
21.1	677
55.4	678	== 3.1 E3 Temperature Probe ==
21.1	679
14.1	680	[[image:image-20220515080154-4.png\|\|height="182" width="161"]] [[image:image-20220515080330-5.png\|\|height="201" width="195"]]
	681
	682
	683	With Temperature sensor with 2 meters cable long
	684
	685	* Resolution: 0.0625 °C
	686	* ±0.5°C accuracy from -10°C to +85°C
	687	* ±2°C accuracy from -55°C to +125°C
	688	* Operating Range: -40 ~~ 125 °C
	689	* -55°C to 125°C
	690	* Working voltage 2.35v ~~ 5v
	691
55.4	692	= 4. Configure LHT65N via AT Command or LoRaWAN Downlink =
52.1	693
	694	Use can configure LHT65N via AT Command or LoRaWAN Downlink.
	695
	696	* AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
	697	* LoRaWAN Downlink instruction for different platforms:
	698
	699	[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#Use_Note_for_Server>>url:http://wiki.dragino.com/index.php?title=Main_Page#Use_Note_for_Server]]
	700
	701	There are two kinds of commands to configure LHT65N, they are:
	702
58.10	703	(% style="color:#4f81bd" %)* General Commands.
52.1	704
	705	These commands are to configure:
	706
	707	* General system settings like: uplink interval.
	708	* LoRaWAN protocol & radio-related commands.
	709
	710	They are the same for all Dragino Devices which supports DLWS-005 LoRaWAN Stack(Note~~). These commands can be found on the wiki:
	711
	712	[[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_Downlink_Command>>url:http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command]]
	713
58.10	714	(% style="color:#4f81bd" %)* Commands special design for LHT65N
52.1	715
	716	These commands are only valid for LHT65N, as below:
	717
55.4	718	== 4.1 Set Transmit Interval Time ==
52.1	719
	720	Feature: Change LoRaWAN End Node Transmit Interval.
	721
	722	AT Command: AT+TDC
	723
66.2	724	[[image:image-20220523150701-2.png]]
52.1	725
	726	Downlink Command: 0x01
	727
	728	Format: Command Code (0x01) followed by 3 bytes time value.
	729
	730	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	731
66.2	732	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	733	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
52.1	734
55.4	735	== 4.2 Set External Sensor Mode ==
52.1	736
	737	Feature: Change External Sensor Mode.
	738
	739	AT Command: AT+EXT
	740
66.2	741	[[image:image-20220523150759-3.png]]
52.1	742
	743	Downlink Command: 0xA2
	744
	745	Total bytes: 2 ~~ 5 bytes
	746
66.2	747	Example:
52.1	748
	749	* 0xA201: Set external sensor type to E1
	750	* 0xA209: Same as AT+EXT=9
	751	* 0xA20702003c,Same as AT+SETCNT=60
	752
55.4	753	== 4.3 Enable/Disable uplink Temperature probe ID ==
52.1	754
	755	Feature: If PID is enabled, device will send the temperature probe ID on:
	756
	757	* First Packet after OTAA Join
	758	* Every 24 hours since the first packet.
	759
	760	PID is default set to disable (0)
	761
	762	AT Command:
	763
66.2	764	[[image:image-20220523150928-4.png]]
52.1	765
	766	Downlink Command:
	767
66.2	768	* 0xA800 ~-~-> AT+PID=0
	769	* 0xA801 ~-~-> AT+PID=1
52.1	770
55.4	771	== 4.4 Set Password ==
52.1	772
	773	Feature: Set device password, max 9 digits
	774
	775	AT Command: AT+PWORD
	776
66.2	777	[[image:image-20220523151052-5.png]]
52.1	778
	779	Downlink Command:
	780
	781	No downlink command for this feature.
	782
55.4	783	== 4.5 Quit AT Command ==
52.1	784
	785	Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
	786
	787	AT Command: AT+DISAT
	788
66.2	789	[[image:image-20220523151132-6.png]]
52.1	790
	791	Downlink Command:
	792
	793	No downlink command for this feature.
	794
55.4	795	== 4.6 Set to sleep mode ==
52.1	796
	797	Feature: Set device to sleep mode
	798
	799	AT Command: AT+SLEEP
	800
66.2	801	[[image:image-20220523151218-7.png]]
52.1	802
	803	Downlink Command:
	804
	805	* There is no downlink command to set to Sleep mode.
	806
55.4	807	== 4.7 Set system time ==
52.1	808
	809	Feature: Set system time, unix format. [[See here for format detail.>>path:#TimeStamp]]
	810
	811	AT Command:
	812
66.2	813	[[image:image-20220523151253-8.png]]
52.1	814
	815	Downlink Command:
	816
	817	0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
	818
55.4	819	== 4.8 Set Time Sync Mode ==
52.1	820
	821	Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
	822
	823	SYNCMOD is set to 1 by default. If user want to set a different time from LoRaWAN server, user need to set this to 0.
	824
	825	AT Command:
	826
66.2	827	[[image:image-20220523151336-9.png]]
52.1	828
	829	Downlink Command:
	830
	831	0x28 01 ~/~/ Same As AT+SYNCMOD=1
	832
	833	0x28 00 ~/~/ Same As AT+SYNCMOD=0
	834
55.4	835	== 4.9 Set Time Sync Interval ==
52.1	836
	837	Feature: Define System time sync interval. SYNCTDC default value: 10 days.
	838
	839	AT Command:
	840
70.2	841	[[image:image-20220523151411-10.png]]
52.1	842
	843	Downlink Command:
	844
	845	0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
	846
55.4	847	== 4.10 Print data entries base on page. ==
52.1	848
	849	Feature: Print the sector data from start page to stop page (max is 416 pages).
	850
	851	AT Command: AT+PDTA
	852
70.2	853	[[image:image-20220523151450-11.png]]
52.1	854
	855	Downlink Command:
	856
	857	No downlink commands for feature
	858
55.4	859	== 4.11 Print last few data entries. ==
52.1	860
	861	Feature: Print the last few data entries
	862
	863	AT Command: AT+PLDTA
	864
70.2	865	[[image:image-20220523151524-12.png]]
52.1	866
	867	Downlink Command:
	868
	869	No downlink commands for feature
	870
55.4	871	== 4.12 Clear Flash Record ==
52.1	872
	873	Feature: Clear flash storage for data log feature.
	874
	875	AT Command: AT+CLRDTA
	876
70.2	877	[[image:image-20220523151556-13.png]]
52.1	878
	879	Downlink Command: 0xA3
	880
	881	* Example: 0xA301 ~/~/Same as AT+CLRDTA
	882
55.4	883	= 5. Battery & How to replace =
52.1	884
55.4	885	== 5.1 Battery Type ==
11.1	886
	887	LHT65N is equipped with a 2400mAH Li-MnO2 (CR17505) battery . The battery is an un-rechargeable battery with low discharge rate targeting for up to 8~~10 years use. This type of battery is commonly used in IoT devices for long-term running, such as water meters.
	888
73.2	889	(((
11.1	890	The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
14.1	891	[[image:image-20220515075034-1.png\|\|height="208" width="644"]]
73.2	892	)))
11.1	893
73.2	894	(((
11.1	895	The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
	896
73.2	897	)))
11.1	898
55.4	899	== 5.2 Replace Battery ==
11.1	900
	901	LHT65N has two screws on the back, Unscrew them, and changing the battery inside is ok. The battery is a general CR17450 battery. Any brand should be ok.
	902
	903	[[image:image-20220515075440-2.png\|\|height="338" width="272"]][[image:image-20220515075625-3.png\|\|height="193" width="257"]]
	904
55.4	905	== 5.3 Battery Life Analyze ==
11.1	906
73.2	907	(((
11.1	908	Dragino battery-powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimated battery life:
	909	https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf
73.2	910	)))
11.1	911
55.4	912	= 6. Order Info =
11.1	913
73.2	914	(((
	915	Part Number: (% style="color:#4f81bd" %) LHT65N-XX
	916	)))
2.1	917
73.2	918	(((
	919	(% style="color:#4f81bd" %)XX (%%): The default frequency band
	920	)))
2.1	921
73.2	922	* (((
	923	(% style="color:#4f81bd" %) AS923(%%): LoRaWAN AS923 band
	924	)))
	925	* (((
	926	(% style="color:#4f81bd" %) AU915(%%): LoRaWAN AU915 band
	927	)))
	928	* (((
	929	(% style="color:#4f81bd" %) EU433(%%): LoRaWAN EU433 band
	930	)))
	931	* (((
	932	(% style="color:#4f81bd" %) EU868(%%): LoRaWAN EU868 band
	933	)))
	934	* (((
	935	(% style="color:#4f81bd" %) KR920(%%): LoRaWAN KR920 band
	936	)))
	937	* (((
	938	(% style="color:#4f81bd" %) US915(%%): LoRaWAN US915 band
	939	)))
	940	* (((
	941	(% style="color:#4f81bd" %) IN865(%%): LoRaWAN IN865 band
	942	)))
	943	* (((
	944	(% style="color:#4f81bd" %) CN470(%%): LoRaWAN CN470 band
	945	)))
4.1	946
73.2	947	(((
	948	(% style="color:#4f81bd" %)YY(%%): Sensor Accessories
	949	)))
14.1	950
73.2	951	* (((
	952	(% style="color:#4f81bd" %)E3(%%): External Temperature Probe
	953	)))
14.1	954
55.4	955	= 7. Packing Info =
4.1	956
73.2	957	(((
4.1	958	Package Includes:
73.2	959	)))
4.1	960
73.2	961	* (((
	962	LHT65N Temperature & Humidity Sensor x 1
	963	)))
	964	* (((
	965	Program cable x 1
	966	)))
	967	* (((
	968	Optional external sensor
	969	)))
4.1	970
73.2	971	(((
4.1	972	Dimension and weight:
73.2	973	)))
4.1	974
73.2	975	* (((
	976	Device Size: 13.5 x 7 x 3 cm
	977	)))
	978	* (((
	979	Device Weight: 105g
	980	)))
	981	* (((
	982	Package Size / pcs : 14.5 x 8 x 5 cm
	983	)))
	984	* (((
	985	Weight / pcs : 170g
	986	)))
4.1	987
55.4	988	= 8. FCC Warning =
7.1	989
73.2	990	(((
7.1	991	This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
73.2	992	)))
7.1	993
73.2	994	(((
55.4	995	(1) This device may not cause harmful interference；
73.2	996	)))
7.1	997
73.2	998	(((
55.4	999	(2) this device must accept any interference received, including interference that may cause undesired operation.
73.2	1000	)))

Wiki source code of LHT65N LoRaWAN Temperature & Humidity Sensor Manual

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