Wiki source code of LHT65N LoRaWAN Temperature & Humidity Sensor Manual

Version 76.11 by Xiaoling on 2022/05/23 15:47

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
76.11	301	(% border="1" style="background-color:#ffffcc; color:green; width:510px" %)
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
76.11	488	(% border="1" style="background-color:#ffffcc; color:green; width:510px" %)
58.6	489	\|(% style="width:93px" %)(((
76.5	490	(((
58.6	491	Size(bytes)
76.5	492	)))
58.6	493	)))\|(% style="width:71px" %)(((
76.5	494	(((
58.6	495	2
76.5	496	)))
58.6	497	)))\|(% style="width:102px" %)(((
76.5	498	(((
58.6	499	2
76.5	500	)))
58.6	501	)))\|(% style="width:86px" %)(((
76.5	502	(((
58.6	503	2
76.5	504	)))
76.6	505	)))\|(% style="width:86px" %)(((
76.5	506	(((
58.6	507	1
76.5	508	)))
76.6	509	)))\|(% style="width:48px" %)(((
76.5	510	(((
58.6	511	4
	512	)))
76.5	513	)))
58.6	514	\|(% style="width:93px" %)(((
76.5	515	(((
58.6	516	Value
76.5	517	)))
58.6	518	)))\|(% style="width:71px" %)(((
76.5	519	(((
58.6	520	[[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]]
76.5	521	)))
58.6	522	)))\|(% style="width:102px" %)(((
	523	(((
76.5	524	(((
58.6	525	[[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]]
	526	)))
76.5	527	)))
58.6	528
	529	(((
76.5	530	(((
58.6	531	[[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]]
	532	)))
76.5	533	)))
58.6	534	)))\|(% style="width:86px" %)(((
	535	(((
76.5	536	(((
58.6	537	[[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]]
	538	)))
76.5	539	)))
58.6	540
	541	(((
76.5	542	(((
58.6	543	[[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]]
	544	)))
76.5	545	)))
76.6	546	)))\|(% style="width:86px" %)(((
76.5	547	(((
58.6	548	[[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]]
76.5	549	)))
76.6	550	)))\|(% style="width:48px" %)(((
58.6	551	(((
76.5	552	(((
57.13	553	[[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	554	)))
76.5	555	)))
51.1	556
58.6	557	(((
76.5	558	(((
51.1	559
	560	)))
58.6	561	)))
76.5	562	)))
51.1	563
58.2	564	Poll message flag & Ext
51.1	565
73.2	566	[[image:image-20220523152208-14.png]]
51.1	567
58.8	568	(((
58.2	569	(((
51.1	570	Poll Message Flag: 1: This message is a poll message reply.
58.2	571	)))
73.2	572	)))
51.1	573
58.2	574	* (((
73.2	575	(((
58.2	576	Poll Message Flag is set to 1.
	577	)))
73.2	578	)))
58.2	579	* (((
73.2	580	(((
58.2	581	Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
	582	)))
73.2	583	)))
51.1	584
58.2	585	(((
73.2	586	(((
51.1	587	For example, in US915 band, the max payload for different DR is:
58.2	588	)))
73.2	589	)))
51.1	590
58.2	591	(((
73.2	592	(((
58.2	593	a) DR0: max is 11 bytes so one entry of data
	594	)))
73.2	595	)))
51.1	596
58.2	597	(((
73.2	598	(((
58.2	599	b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
	600	)))
73.2	601	)))
51.1	602
58.2	603	(((
73.2	604	(((
58.2	605	c) DR2: total payload includes 11 entries of data
	606	)))
73.2	607	)))
51.1	608
58.2	609	(((
73.2	610	(((
58.2	611	d) DR3: total payload includes 22 entries of data.
	612	)))
73.2	613	)))
51.1	614
58.2	615	(((
73.2	616	(((
51.1	617	If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0
58.2	618	)))
73.2	619	)))
51.1	620
	621
	622	Example:
	623
	624	If LHT65N has below data inside Flash:
	625
58.2	626	[[image:image-20220523144455-1.png\|\|height="335" width="735"]]
	627
76.6	628	(((
58.4	629	If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
76.6	630	)))
51.1	631
76.6	632	(((
51.1	633	Where : Start time: 60065F97 = time 21/1/19 04:27:03
76.6	634	)))
51.1	635
76.6	636	(((
51.1	637	Stop time 60066DA7= time 21/1/19 05:27:03
76.6	638	)))
51.1	639
76.6	640	(((
	641
	642	)))
51.1	643
76.6	644	(((
51.1	645	LHT65N will uplink this payload.
76.6	646	)))
51.1	647
55.4	648	[[image:image-20220523001219-13.png\|\|height="421" width="727"]]
51.1	649
	650	7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
	651
	652	Where the first 11 bytes is for the first entry:
	653
	654	7FFF089801464160065F97
	655
	656	Ext sensor data=0x7FFF/100=327.67
	657
	658	Temp=0x0898/100=22.00
	659
	660	Hum=0x0146/10=32.6
	661
	662	poll message flag & Ext=0x41,means reply data,Ext=1
	663
	664	Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
	665
55.4	666	== 2.7 Alarm Mode ==
51.1	667
	668	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.
	669
76.6	670	(((
58.10	671	(% 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.
76.6	672	)))
51.1	673
76.6	674	(((
58.10	675	AT Commands for Alarm mode:
76.6	676	)))
51.1	677
58.10	678	(% class="box infomessage" %)
	679	(((
76.6	680	(((
51.1	681	AT+WMOD=1: Enable/Disable Alarm Mode. (0:Disable, 1: Enable)
58.10	682	)))
76.6	683	)))
51.1	684
58.10	685	(% class="box infomessage" %)
	686	(((
76.6	687	(((
51.1	688	AT+CITEMP=1: The interval to check the temperature for Alarm. (Unit: minute)
58.10	689	)))
76.6	690	)))
51.1	691
55.4	692	== 2.8 LED Indicator ==
18.1	693
58.10	694	(((
19.1	695	The LHT65N has a triple color LED which for easy shows different stage.
58.10	696	)))
19.1	697
58.10	698	(((
19.1	699	While pressing ACT button, the LED will work as per LED status with ACT button.
58.10	700	)))
19.1	701
58.10	702	(((
19.1	703	In a normal working state:
58.10	704	)))
19.1	705
58.10	706	* (((
	707	For each uplink, the BLUE LED or RED LED will blink once.
	708	)))
	709	* (((
	710	BLUE LED when an external sensor is connected
	711	)))
	712	* (((
	713	RED LED when an external sensor is not connected
	714	)))
	715	* (((
	716	For each success downlink, the PURPLE LED will blink once
	717	)))
19.1	718
23.1	719	----
19.1	720
55.4	721	== 2.9 Installation ==
21.1	722
52.1	723	[[image:image-20220516231650-1.png\|\|height="436" width="428"]]
21.1	724
55.4	725	= 3. Sensors & Accessories =
21.1	726
55.4	727	== 3.1 E3 Temperature Probe ==
21.1	728
14.1	729	[[image:image-20220515080154-4.png\|\|height="182" width="161"]] [[image:image-20220515080330-5.png\|\|height="201" width="195"]]
	730
	731
	732	With Temperature sensor with 2 meters cable long
	733
	734	* Resolution: 0.0625 °C
	735	* ±0.5°C accuracy from -10°C to +85°C
	736	* ±2°C accuracy from -55°C to +125°C
	737	* Operating Range: -40 ~~ 125 °C
	738	* -55°C to 125°C
	739	* Working voltage 2.35v ~~ 5v
	740
55.4	741	= 4. Configure LHT65N via AT Command or LoRaWAN Downlink =
52.1	742
76.7	743	(((
52.1	744	Use can configure LHT65N via AT Command or LoRaWAN Downlink.
76.7	745	)))
52.1	746
76.7	747	* (((
	748	AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
	749	)))
	750	* (((
	751	LoRaWAN Downlink instruction for different platforms:
	752	)))
52.1	753
76.7	754	(((
52.1	755	[[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]]
76.7	756	)))
52.1	757
76.7	758	(((
52.1	759	There are two kinds of commands to configure LHT65N, they are:
76.7	760	)))
52.1	761
76.7	762	(((
58.10	763	(% style="color:#4f81bd" %)* General Commands.
76.7	764	)))
52.1	765
76.7	766	(((
52.1	767	These commands are to configure:
76.7	768	)))
52.1	769
76.7	770	* (((
	771	General system settings like: uplink interval.
	772	)))
	773	* (((
	774	LoRaWAN protocol & radio-related commands.
	775	)))
52.1	776
76.7	777	(((
52.1	778	They are the same for all Dragino Devices which supports DLWS-005 LoRaWAN Stack(Note~~). These commands can be found on the wiki:
76.7	779	)))
52.1	780
76.7	781	(((
52.1	782	[[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_Downlink_Command>>url:http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command]]
76.7	783	)))
52.1	784
76.7	785	(((
58.10	786	(% style="color:#4f81bd" %)* Commands special design for LHT65N
76.7	787	)))
52.1	788
76.7	789	(((
52.1	790	These commands are only valid for LHT65N, as below:
76.7	791	)))
52.1	792
55.4	793	== 4.1 Set Transmit Interval Time ==
52.1	794
	795	Feature: Change LoRaWAN End Node Transmit Interval.
	796
	797	AT Command: AT+TDC
	798
66.2	799	[[image:image-20220523150701-2.png]]
52.1	800
76.8	801	(((
52.1	802	Downlink Command: 0x01
76.8	803	)))
52.1	804
76.8	805	(((
52.1	806	Format: Command Code (0x01) followed by 3 bytes time value.
76.8	807	)))
52.1	808
76.8	809	(((
52.1	810	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
76.8	811	)))
52.1	812
76.8	813	* (((
	814	Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	815	)))
	816	* (((
	817	Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	818	)))
52.1	819
55.4	820	== 4.2 Set External Sensor Mode ==
52.1	821
	822	Feature: Change External Sensor Mode.
	823
	824	AT Command: AT+EXT
	825
66.2	826	[[image:image-20220523150759-3.png]]
52.1	827
76.8	828	(((
52.1	829	Downlink Command: 0xA2
76.8	830	)))
52.1	831
76.8	832	(((
52.1	833	Total bytes: 2 ~~ 5 bytes
76.8	834	)))
52.1	835
76.8	836	(((
66.2	837	Example:
76.8	838	)))
52.1	839
76.8	840	* (((
	841	0xA201: Set external sensor type to E1
	842	)))
	843	* (((
	844	0xA209: Same as AT+EXT=9
	845	)))
	846	* (((
	847	0xA20702003c,Same as AT+SETCNT=60
	848	)))
52.1	849
55.4	850	== 4.3 Enable/Disable uplink Temperature probe ID ==
52.1	851
	852	Feature: If PID is enabled, device will send the temperature probe ID on:
	853
	854	* First Packet after OTAA Join
	855	* Every 24 hours since the first packet.
	856
	857	PID is default set to disable (0)
	858
	859	AT Command:
	860
66.2	861	[[image:image-20220523150928-4.png]]
52.1	862
	863	Downlink Command:
	864
66.2	865	* 0xA800 ~-~-> AT+PID=0
	866	* 0xA801 ~-~-> AT+PID=1
52.1	867
55.4	868	== 4.4 Set Password ==
52.1	869
	870	Feature: Set device password, max 9 digits
	871
	872	AT Command: AT+PWORD
	873
66.2	874	[[image:image-20220523151052-5.png]]
52.1	875
76.8	876	(((
52.1	877	Downlink Command:
76.8	878	)))
52.1	879
76.8	880	(((
52.1	881	No downlink command for this feature.
76.8	882	)))
52.1	883
55.4	884	== 4.5 Quit AT Command ==
52.1	885
	886	Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
	887
	888	AT Command: AT+DISAT
	889
66.2	890	[[image:image-20220523151132-6.png]]
52.1	891
	892	Downlink Command:
	893
	894	No downlink command for this feature.
	895
55.4	896	== 4.6 Set to sleep mode ==
52.1	897
	898	Feature: Set device to sleep mode
	899
	900	AT Command: AT+SLEEP
	901
66.2	902	[[image:image-20220523151218-7.png]]
52.1	903
	904	Downlink Command:
	905
	906	* There is no downlink command to set to Sleep mode.
	907
55.4	908	== 4.7 Set system time ==
52.1	909
	910	Feature: Set system time, unix format. [[See here for format detail.>>path:#TimeStamp]]
	911
	912	AT Command:
	913
66.2	914	[[image:image-20220523151253-8.png]]
52.1	915
	916	Downlink Command:
	917
	918	0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
	919
55.4	920	== 4.8 Set Time Sync Mode ==
52.1	921
76.8	922	(((
52.1	923	Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
76.8	924	)))
52.1	925
76.8	926	(((
52.1	927	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.
76.8	928	)))
52.1	929
76.8	930	(((
52.1	931	AT Command:
76.8	932	)))
52.1	933
66.2	934	[[image:image-20220523151336-9.png]]
52.1	935
	936	Downlink Command:
	937
	938	0x28 01 ~/~/ Same As AT+SYNCMOD=1
	939
	940	0x28 00 ~/~/ Same As AT+SYNCMOD=0
	941
55.4	942	== 4.9 Set Time Sync Interval ==
52.1	943
	944	Feature: Define System time sync interval. SYNCTDC default value: 10 days.
	945
	946	AT Command:
	947
70.2	948	[[image:image-20220523151411-10.png]]
52.1	949
	950	Downlink Command:
	951
	952	0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
	953
55.4	954	== 4.10 Print data entries base on page. ==
52.1	955
	956	Feature: Print the sector data from start page to stop page (max is 416 pages).
	957
	958	AT Command: AT+PDTA
	959
70.2	960	[[image:image-20220523151450-11.png]]
52.1	961
	962	Downlink Command:
	963
	964	No downlink commands for feature
	965
55.4	966	== 4.11 Print last few data entries. ==
52.1	967
	968	Feature: Print the last few data entries
	969
	970	AT Command: AT+PLDTA
	971
70.2	972	[[image:image-20220523151524-12.png]]
52.1	973
	974	Downlink Command:
	975
	976	No downlink commands for feature
	977
55.4	978	== 4.12 Clear Flash Record ==
52.1	979
	980	Feature: Clear flash storage for data log feature.
	981
	982	AT Command: AT+CLRDTA
	983
70.2	984	[[image:image-20220523151556-13.png]]
52.1	985
	986	Downlink Command: 0xA3
	987
	988	* Example: 0xA301 ~/~/Same as AT+CLRDTA
	989
55.4	990	= 5. Battery & How to replace =
52.1	991
55.4	992	== 5.1 Battery Type ==
11.1	993
	994	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.
	995
73.2	996	(((
11.1	997	The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
14.1	998	[[image:image-20220515075034-1.png\|\|height="208" width="644"]]
73.2	999	)))
11.1	1000
73.2	1001	(((
11.1	1002	The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
	1003
73.2	1004	)))
11.1	1005
55.4	1006	== 5.2 Replace Battery ==
11.1	1007
	1008	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.
	1009
	1010	[[image:image-20220515075440-2.png\|\|height="338" width="272"]][[image:image-20220515075625-3.png\|\|height="193" width="257"]]
	1011
55.4	1012	== 5.3 Battery Life Analyze ==
11.1	1013
73.2	1014	(((
11.1	1015	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:
	1016	https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf
73.2	1017	)))
11.1	1018
55.4	1019	= 6. Order Info =
11.1	1020
73.2	1021	(((
76.8	1022	Part Number: (% style="color:#4f81bd" %) LHT65N-XX-YY
73.2	1023	)))
2.1	1024
73.2	1025	(((
	1026	(% style="color:#4f81bd" %)XX (%%): The default frequency band
	1027	)))
2.1	1028
73.2	1029	* (((
	1030	(% style="color:#4f81bd" %) AS923(%%): LoRaWAN AS923 band
	1031	)))
	1032	* (((
	1033	(% style="color:#4f81bd" %) AU915(%%): LoRaWAN AU915 band
	1034	)))
	1035	* (((
	1036	(% style="color:#4f81bd" %) EU433(%%): LoRaWAN EU433 band
	1037	)))
	1038	* (((
	1039	(% style="color:#4f81bd" %) EU868(%%): LoRaWAN EU868 band
	1040	)))
	1041	* (((
	1042	(% style="color:#4f81bd" %) KR920(%%): LoRaWAN KR920 band
	1043	)))
	1044	* (((
	1045	(% style="color:#4f81bd" %) US915(%%): LoRaWAN US915 band
	1046	)))
	1047	* (((
	1048	(% style="color:#4f81bd" %) IN865(%%): LoRaWAN IN865 band
	1049	)))
	1050	* (((
	1051	(% style="color:#4f81bd" %) CN470(%%): LoRaWAN CN470 band
	1052	)))
4.1	1053
73.2	1054	(((
	1055	(% style="color:#4f81bd" %)YY(%%): Sensor Accessories
	1056	)))
14.1	1057
73.2	1058	* (((
	1059	(% style="color:#4f81bd" %)E3(%%): External Temperature Probe
	1060	)))
14.1	1061
55.4	1062	= 7. Packing Info =
4.1	1063
73.2	1064	(((
4.1	1065	Package Includes:
73.2	1066	)))
4.1	1067
73.2	1068	* (((
	1069	LHT65N Temperature & Humidity Sensor x 1
	1070	)))
	1071	* (((
	1072	Program cable x 1
	1073	)))
	1074	* (((
	1075	Optional external sensor
	1076	)))
4.1	1077
73.2	1078	(((
4.1	1079	Dimension and weight:
73.2	1080	)))
4.1	1081
73.2	1082	* (((
	1083	Device Size: 13.5 x 7 x 3 cm
	1084	)))
	1085	* (((
	1086	Device Weight: 105g
	1087	)))
	1088	* (((
	1089	Package Size / pcs : 14.5 x 8 x 5 cm
	1090	)))
	1091	* (((
	1092	Weight / pcs : 170g
	1093	)))
4.1	1094
55.4	1095	= 8. FCC Warning =
7.1	1096
73.2	1097	(((
7.1	1098	This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
73.2	1099	)))
7.1	1100
73.2	1101	(((
55.4	1102	(1) This device may not cause harmful interference；
73.2	1103	)))
7.1	1104
73.2	1105	(((
55.4	1106	(2) this device must accept any interference received, including interference that may cause undesired operation.
73.2	1107	)))

Wiki source code of LHT65N LoRaWAN Temperature & Humidity Sensor Manual

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