Wiki source code of LHT65N LoRaWAN Temperature & Humidity Sensor Manual

Version 77.5 by Xiaoling on 2022/05/23 16:07

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56.2	2	[[image:image-20220523115324-1.jpeg\|\|height="500" width="500"]]
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2.1	4
56.2	5	LHT65N LoRaWAN Temperature & Humidity Sensor Manual
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56.2	23	Table of Contents：
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55.2	25	{{toc/}}
2.1	26
55.4	27
	28
77.3	29
52.2	30	= 1.Introduction =
	31
55.2	32	== 1.1 What is LHT65N Temperature & Humidity Sensor ==
52.2	33
56.3	34	(((
56.2	35	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	36	)))
2.1	37
56.3	38	(((
2.1	39	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	40	)))
2.1	41
56.3	42	(((
6.1	43	LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
56.3	44	)))
2.1	45
56.3	46	(((
2.1	47	LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
56.3	48	)))
2.1	49
56.3	50	(((
56.2	51	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	52	)))
2.1	53
56.3	54	(((
6.1	55	*The actual battery life depends on how often to send data, please see the battery analyzer chapter.
56.3	56	)))
2.1	57
55.2	58	== 1.2 Features ==
2.1	59
	60	* Wall mountable
	61	* LoRaWAN v1.0.3 Class A protocol
	62	* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
	63	* AT Commands to change parameters
	64	* Remote configure parameters via LoRaWAN Downlink
15.1	65	* Firmware upgradeable via program port
6.1	66	* Built-in 2400mAh battery for up to 10 years of use.
2.1	67	* Built-in Temperature & Humidity sensor
	68	* Optional External Sensors
6.1	69	* Tri-color LED to indicate working status
2.1	70	* Datalog feature
	71
55.2	72	== 1.3 Specification ==
2.1	73
56.3	74	(((
2.1	75	Built-in Temperature Sensor:
56.3	76	)))
2.1	77
56.3	78	* (((
	79	Resolution: 0.01 °C
	80	)))
	81	* (((
	82	Accuracy Tolerance : Typ ±0.3 °C
	83	)))
	84	* (((
	85	Long Term Drift: < 0.02 °C/yr
	86	)))
	87	* (((
	88	Operating Range: -40 ~~ 85 °C
	89	)))
2.1	90
56.3	91	(((
2.1	92	Built-in Humidity Sensor:
56.3	93	)))
2.1	94
56.3	95	* (((
	96	Resolution: 0.04 %RH
	97	)))
	98	* (((
	99	Accuracy Tolerance : Typ ±3 %RH
	100	)))
	101	* (((
	102	Long Term Drift: < 0.02 °C/yr
	103	)))
	104	* (((
	105	Operating Range: 0 ~~ 96 %RH
	106	)))
2.1	107
56.3	108	(((
6.1	109	External Temperature Sensor:
56.3	110	)))
2.1	111
56.3	112	* (((
	113	Resolution: 0.0625 °C
	114	)))
	115	* (((
	116	±0.5°C accuracy from -10°C to +85°C
	117	)))
	118	* (((
	119	±2°C accuracy from -55°C to +125°C
	120	)))
	121	* (((
	122	Operating Range: -55 °C ~~ 125 °C
	123	)))
2.1	124
55.2	125	= 2. Connect LHT65N to IoT Server =
18.1	126
55.2	127	== 2.1 How does LHT65N work? ==
18.1	128
56.4	129	(((
18.1	130	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	131	)))
18.1	132
56.4	133	(((
18.1	134	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	135	)))
18.1	136
55.2	137	== 2.2 How to Activate LHT65N? ==
18.1	138
	139	The LHT65N has two working modes:
	140
	141	* Deep Sleep Mode: LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
19.1	142	* 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	143
56.5	144	(((
18.1	145	The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
56.5	146	)))
18.1	147
	148	[[image:image-20220515123819-1.png\|\|height="379" width="317"]]
	149
76.2	150	[[image:image-20220523153201-19.png\|\|height="163" width="739"]]
18.1	151
55.2	152	== 2.3 Example to join LoRaWAN network ==
32.1	153
	154	(% class="wikigeneratedid" %)
	155	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.
	156
	157	(% class="wikigeneratedid" %)
	158	[[image:image-20220522232442-1.png\|\|height="387" width="648"]]
	159
	160	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:
	161
	162
55.3	163	=== 2.3.1 Step 1: Create Device n TTN ===
32.1	164
	165	Create a device in TTN V3 with the OTAA keys from LHT65N.
	166
	167	Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
	168
	169	[[image:image-20220522232812-2.png\|\|height="219" width="279"]]
	170
	171	User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
	172
	173	Add APP EUI in the application.
	174
	175	[[image:image-20220522232916-3.png]]
	176
	177	[[image:image-20220522232932-4.png]]
	178
	179	[[image:image-20220522232954-5.png]]
	180
	181	Note: LHT65N use same payload as LHT65.
	182
	183	[[image:image-20220522233026-6.png]]
	184
	185
	186	Input APP EUI, APP KEY and DEV EUI:
	187
	188	[[image:image-20220522233118-7.png]]
	189
	190
55.2	191	=== 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
32.1	192
	193	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.
	194
57.3	195	[[image:image-20220522233300-8.png\|\|height="219" width="722"]]
32.1	196
	197
55.3	198	== 2.4 Uplink Payload ==
35.1	199
57.2	200	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	201
57.2	202	After each uplink, the (% style="color:blue" %)BLUE LED(%%) will blink once.
35.1	203
76.2	204	(% border="1" style="background-color:#ffffcc; color:green; width:426px" %)
	205	\|(% style="width:97px" %)(((
57.10	206	Size(bytes)
76.2	207	)))\|(% style="width:39px" %)(((
57.10	208	2
76.2	209	)))\|(% style="width:100px" %)(((
57.10	210	2
76.2	211	)))\|(% style="width:77px" %)(((
57.10	212	2
76.2	213	)))\|(% style="width:47px" %)(((
	214	1
57.10	215	)))\|(% style="width:51px" %)(((
	216	4
	217	)))
76.2	218	\|(% style="width:97px" %)(((
57.10	219	Value
76.2	220	)))\|(% style="width:39px" %)(((
57.10	221	[[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	222	)))\|(% style="width:100px" %)(((
57.10	223	(((
76.2	224	[[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	225	)))
76.2	226	)))\|(% style="width:77px" %)(((
57.10	227	(((
57.8	228	[[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	229	)))
57.8	230
57.10	231	(((
57.8	232	[[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	233	)))
76.2	234	)))\|(% style="width:47px" %)(((
	235	[[Ext>>path:#Extension_Sensor]] #
57.10	236	)))\|(% style="width:51px" %)(((
	237	[[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]]
	238	)))
57.8	239
35.1	240	* The First 6 bytes: has fix meanings for every LHT65N.
	241	* The 7th byte (EXT #): defines the external sensor model.
	242	* 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.)
	243
55.4	244	=== 2.4.1 Decoder in TTN V3 ===
35.1	245
	246	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.
	247
	248	Below is the position to put the decoder and LHT65N decoder can be download from here:
	249
42.1	250	[[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]
35.1	251
57.4	252	[[image:image-20220522234118-10.png\|\|height="353" width="729"]]
35.1	253
55.4	254	=== 2.4.2 BAT-Battery Info ===
42.1	255
	256	These two bytes of BAT include the battery state and the actually voltage
	257
76.2	258	[[image:image-20220523152839-18.png]]
42.1	259
57.5	260	[[image:image-20220522235639-1.png\|\|height="139" width="727"]]
42.1	261
	262	Check the battery voltage for LHT65N.
	263
	264	* BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
	265	* Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
	266
55.4	267	=== 2.4.3 Built-in Temperature ===
42.1	268
57.5	269	[[image:image-20220522235639-2.png\|\|height="138" width="722"]]
42.1	270
	271	* Temperature: 0x0ABB/100=27.47℃
	272
	273	[[image:image-20220522235639-3.png]]
	274
	275	* Temperature: (0xF5C6-65536)/100=-26.18℃
	276
55.4	277	=== 2.4.4 Built-in Humidity ===
42.1	278
57.5	279	[[image:image-20220522235639-4.png\|\|height="138" width="722"]]
42.1	280
	281	* Humidity: 0x025C/10=60.4%
	282
55.4	283	=== 2.4.5 Ext # ===
42.1	284
	285	Bytes for External Sensor:
	286
76.2	287	[[image:image-20220523152822-17.png]]
42.1	288
55.4	289	=== 2.4.6 Ext value ===
42.1	290
55.4	291	==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
42.1	292
	293	[[image:image-20220522235639-5.png]]
	294
	295	* DS18B20 temp=0x0ADD/100=27.81℃
	296
	297	The last 2 bytes of data are meaningless
	298
	299	[[image:image-20220522235639-6.png]]
	300
	301	* External temperature= (0xF54F-65536)/100=-27.37℃
	302
57.5	303	(((
42.1	304	The last 2 bytes of data are meaningless
57.5	305	)))
42.1	306
57.5	307	(((
42.1	308	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	309	)))
42.1	310
	311
55.4	312	==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
42.1	313
	314	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:
	315
76.11	316	(% border="1" style="background-color:#ffffcc; color:green; width:510px" %)
73.2	317	\|(% style="width:96px" %)(((
76.3	318	Size(bytes)
	319	)))\|(% style="width:71px" %)(((
	320	2
	321	)))\|(% style="width:99px" %)(((
	322	2
	323	)))\|(% style="width:132px" %)(((
	324	2
	325	)))\|(% style="width:54px" %)(((
	326	1
	327	)))\|(% style="width:64px" %)(((
	328	4
	329	)))
	330	\|(% style="width:96px" %)(((
73.2	331	Value
	332	)))\|(% style="width:71px" %)(((
	333	[[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]]
	334	)))\|(% style="width:99px" %)(((
	335	(((
57.5	336	[[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	337	)))
42.1	338
73.2	339	(((
57.5	340	[[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	341	)))
	342	)))\|(% style="width:132px" %)(((
	343	(((
57.5	344	BAT Status &
73.2	345	)))
42.1	346
73.2	347	(((
	348	[[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]]
	349	)))
	350	)))\|(% style="width:54px" %)(((
	351	Status & Ext
	352	)))\|(% style="width:64px" %)(((
	353	(((
57.11	354	[[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	355	)))
73.2	356	)))
42.1	357
57.6	358	* Battery status & (% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)Built-in Humidity(%%)
42.1	359
57.11	360	(% border="1" style="background-color:#ffffcc; color:green; width:469px" %)
	361	\|(% style="width:65px" %)Bit(bit)\|(% style="width:267px" %)[15:14]\|(% style="width:134px" %)[11:0]
	362	\|(% style="width:65px" %)Value\|(% style="width:267px" %)(((
42.1	363	BAT Status
	364
	365	00(b): Ultra Low ( BAT <= 2.50v)
	366
	367	01(b): Low (2.50v <=BAT <= 2.55v)
	368
	369	10(b): OK (2.55v <= BAT <=2.65v)
	370
	371	11(b): Good (BAT >= 2.65v)
57.11	372	)))\|(% style="width:134px" %)(((
57.5	373	[[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	374
	375
	376	)))
	377
	378	* Status & Ext Byte
	379
73.2	380	[[image:image-20220523152434-16.png]]
42.1	381
	382	* Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
	383	* 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.
	384	* 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)
	385
55.4	386	== 2.5 Show data on Datacake ==
42.1	387
47.1	388	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:
	389
57.6	390	(((
47.1	391	Step 1: Be sure that your device is programmed and properly connected to the LoRaWAN network.
57.6	392	)))
47.1	393
57.6	394	(((
47.1	395	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	396	)))
47.1	397
57.6	398	(((
47.1	399	Add Datacake:
57.6	400	)))
47.1	401
	402	[[image:image-20220523000825-7.png\|\|height="262" width="583"]]
	403
	404
	405	Select default key as Access Key:
	406
	407	[[image:image-20220523000825-8.png\|\|height="453" width="406"]]
	408
	409	In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
	410
	411	[[image:image-20220523000825-9.png\|\|height="366" width="392"]]
	412
57.12	413	[[image:image-20220523000825-10.png\|\|height="413" width="728"]]
47.1	414
55.4	415	== 2.6 Datalog Feature ==
47.1	416
51.1	417	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.
	418
55.4	419	=== 2.6.1 Unix TimeStamp ===
51.1	420
	421	LHT65N uses Unix TimeStamp format based on
	422
	423	[[image:image-20220523001219-11.png\|\|height="97" width="627"]]
	424
	425
57.6	426	(((
51.1	427	User can get this time from link: [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
57.6	428	)))
51.1	429
57.6	430	(((
51.1	431	Below is the converter example
57.6	432	)))
51.1	433
57.11	434	[[image:image-20220523001219-12.png\|\|height="298" width="720"]]
51.1	435
	436	So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
	437
55.4	438	=== 2.6.2 Set Device Time ===
51.1	439
57.11	440	(((
51.1	441	There are two ways to set device’s time:
57.11	442	)))
51.1	443
57.11	444	(((
51.1	445	~1. Through LoRaWAN MAC Command (Default settings)
57.11	446	)))
51.1	447
57.11	448	(((
51.1	449	User need to set SYNCMOD=1 to enable sync time via MAC command.
57.11	450	)))
51.1	451
57.11	452	(((
51.1	453	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	454	)))
51.1	455
57.11	456	(((
51.1	457	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	458	)))
51.1	459
57.11	460	(((
	461
	462	)))
51.1	463
57.11	464	(((
51.1	465	2. Manually Set Time
57.11	466	)))
51.1	467
57.11	468	(((
51.1	469	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	470	)))
51.1	471
55.4	472	=== 2.6.3 Poll sensor value ===
51.1	473
	474	User can poll sensor value based on timestamps from the server. Below is the downlink command.
	475
73.2	476	[[image:image-20220523152302-15.png]]
51.1	477
57.12	478	(((
51.1	479	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	480	)))
51.1	481
57.12	482	(((
	483	For example, downlink command 31 5FC5F350 5FC6 0160 05
	484	)))
51.1	485
57.12	486	(((
51.1	487	Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
57.12	488	)))
51.1	489
57.12	490	(((
51.1	491	Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
57.12	492	)))
51.1	493
	494
55.4	495	=== 2.6.4 Datalog Uplink payload ===
51.1	496
	497	The Datalog poll reply uplink will use below payload format.
	498
57.13	499	(((
58.2	500	Retrieval data payload
57.13	501	)))
51.1	502
76.11	503	(% border="1" style="background-color:#ffffcc; color:green; width:510px" %)
58.6	504	\|(% style="width:93px" %)(((
76.5	505	(((
58.6	506	Size(bytes)
76.5	507	)))
58.6	508	)))\|(% style="width:71px" %)(((
76.5	509	(((
58.6	510	2
76.5	511	)))
58.6	512	)))\|(% style="width:102px" %)(((
76.5	513	(((
58.6	514	2
76.5	515	)))
58.6	516	)))\|(% style="width:86px" %)(((
76.5	517	(((
58.6	518	2
76.5	519	)))
76.6	520	)))\|(% style="width:86px" %)(((
76.5	521	(((
58.6	522	1
76.5	523	)))
76.6	524	)))\|(% style="width:48px" %)(((
76.5	525	(((
58.6	526	4
	527	)))
76.5	528	)))
58.6	529	\|(% style="width:93px" %)(((
76.5	530	(((
58.6	531	Value
76.5	532	)))
58.6	533	)))\|(% style="width:71px" %)(((
76.5	534	(((
58.6	535	[[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	536	)))
58.6	537	)))\|(% style="width:102px" %)(((
	538	(((
76.5	539	(((
58.6	540	[[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]]
	541	)))
76.5	542	)))
58.6	543
	544	(((
76.5	545	(((
58.6	546	[[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]]
	547	)))
76.5	548	)))
58.6	549	)))\|(% style="width:86px" %)(((
	550	(((
76.5	551	(((
58.6	552	[[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]]
	553	)))
76.5	554	)))
58.6	555
	556	(((
76.5	557	(((
58.6	558	[[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]]
	559	)))
76.5	560	)))
76.6	561	)))\|(% style="width:86px" %)(((
76.5	562	(((
58.6	563	[[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	564	)))
76.6	565	)))\|(% style="width:48px" %)(((
58.6	566	(((
76.5	567	(((
57.13	568	[[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	569	)))
76.5	570	)))
51.1	571
58.6	572	(((
76.5	573	(((
51.1	574
	575	)))
58.6	576	)))
76.5	577	)))
51.1	578
58.2	579	Poll message flag & Ext
51.1	580
73.2	581	[[image:image-20220523152208-14.png]]
51.1	582
58.8	583	(((
58.2	584	(((
51.1	585	Poll Message Flag: 1: This message is a poll message reply.
58.2	586	)))
73.2	587	)))
51.1	588
58.2	589	* (((
73.2	590	(((
58.2	591	Poll Message Flag is set to 1.
	592	)))
73.2	593	)))
58.2	594	* (((
73.2	595	(((
58.2	596	Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
	597	)))
73.2	598	)))
51.1	599
58.2	600	(((
73.2	601	(((
51.1	602	For example, in US915 band, the max payload for different DR is:
58.2	603	)))
73.2	604	)))
51.1	605
58.2	606	(((
73.2	607	(((
58.2	608	a) DR0: max is 11 bytes so one entry of data
	609	)))
73.2	610	)))
51.1	611
58.2	612	(((
73.2	613	(((
58.2	614	b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
	615	)))
73.2	616	)))
51.1	617
58.2	618	(((
73.2	619	(((
58.2	620	c) DR2: total payload includes 11 entries of data
	621	)))
73.2	622	)))
51.1	623
58.2	624	(((
73.2	625	(((
58.2	626	d) DR3: total payload includes 22 entries of data.
	627	)))
73.2	628	)))
51.1	629
58.2	630	(((
73.2	631	(((
51.1	632	If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0
58.2	633	)))
73.2	634	)))
51.1	635
	636
	637	Example:
	638
	639	If LHT65N has below data inside Flash:
	640
58.2	641	[[image:image-20220523144455-1.png\|\|height="335" width="735"]]
	642
76.6	643	(((
58.4	644	If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
76.6	645	)))
51.1	646
76.6	647	(((
51.1	648	Where : Start time: 60065F97 = time 21/1/19 04:27:03
76.6	649	)))
51.1	650
76.6	651	(((
51.1	652	Stop time 60066DA7= time 21/1/19 05:27:03
76.6	653	)))
51.1	654
76.6	655	(((
	656
	657	)))
51.1	658
76.6	659	(((
51.1	660	LHT65N will uplink this payload.
76.6	661	)))
51.1	662
55.4	663	[[image:image-20220523001219-13.png\|\|height="421" width="727"]]
51.1	664
	665	7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
	666
	667	Where the first 11 bytes is for the first entry:
	668
	669	7FFF089801464160065F97
	670
	671	Ext sensor data=0x7FFF/100=327.67
	672
	673	Temp=0x0898/100=22.00
	674
	675	Hum=0x0146/10=32.6
	676
	677	poll message flag & Ext=0x41,means reply data,Ext=1
	678
	679	Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
	680
55.4	681	== 2.7 Alarm Mode ==
51.1	682
	683	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.
	684
76.6	685	(((
58.10	686	(% 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	687	)))
51.1	688
76.6	689	(((
58.10	690	AT Commands for Alarm mode:
76.6	691	)))
51.1	692
58.10	693	(% class="box infomessage" %)
	694	(((
76.6	695	(((
51.1	696	AT+WMOD=1: Enable/Disable Alarm Mode. (0:Disable, 1: Enable)
58.10	697	)))
76.6	698	)))
51.1	699
58.10	700	(% class="box infomessage" %)
	701	(((
76.6	702	(((
51.1	703	AT+CITEMP=1: The interval to check the temperature for Alarm. (Unit: minute)
58.10	704	)))
76.6	705	)))
51.1	706
55.4	707	== 2.8 LED Indicator ==
18.1	708
58.10	709	(((
19.1	710	The LHT65N has a triple color LED which for easy shows different stage.
58.10	711	)))
19.1	712
58.10	713	(((
19.1	714	While pressing ACT button, the LED will work as per LED status with ACT button.
58.10	715	)))
19.1	716
58.10	717	(((
19.1	718	In a normal working state:
58.10	719	)))
19.1	720
58.10	721	* (((
	722	For each uplink, the BLUE LED or RED LED will blink once.
	723	)))
	724	* (((
	725	BLUE LED when an external sensor is connected
	726	)))
	727	* (((
	728	RED LED when an external sensor is not connected
	729	)))
	730	* (((
	731	For each success downlink, the PURPLE LED will blink once
	732	)))
19.1	733
23.1	734	----
19.1	735
55.4	736	== 2.9 Installation ==
21.1	737
52.1	738	[[image:image-20220516231650-1.png\|\|height="436" width="428"]]
21.1	739
55.4	740	= 3. Sensors & Accessories =
21.1	741
55.4	742	== 3.1 E3 Temperature Probe ==
21.1	743
14.1	744	[[image:image-20220515080154-4.png\|\|height="182" width="161"]] [[image:image-20220515080330-5.png\|\|height="201" width="195"]]
	745
	746
	747	With Temperature sensor with 2 meters cable long
	748
	749	* Resolution: 0.0625 °C
	750	* ±0.5°C accuracy from -10°C to +85°C
	751	* ±2°C accuracy from -55°C to +125°C
	752	* Operating Range: -40 ~~ 125 °C
	753	* -55°C to 125°C
	754	* Working voltage 2.35v ~~ 5v
	755
55.4	756	= 4. Configure LHT65N via AT Command or LoRaWAN Downlink =
52.1	757
76.7	758	(((
52.1	759	Use can configure LHT65N via AT Command or LoRaWAN Downlink.
76.7	760	)))
52.1	761
76.7	762	* (((
	763	AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
	764	)))
	765	* (((
	766	LoRaWAN Downlink instruction for different platforms:
	767	)))
52.1	768
76.7	769	(((
52.1	770	[[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	771	)))
52.1	772
76.7	773	(((
52.1	774	There are two kinds of commands to configure LHT65N, they are:
76.7	775	)))
52.1	776
76.7	777	(((
58.10	778	(% style="color:#4f81bd" %)* General Commands.
76.7	779	)))
52.1	780
76.7	781	(((
52.1	782	These commands are to configure:
76.7	783	)))
52.1	784
76.7	785	* (((
	786	General system settings like: uplink interval.
	787	)))
	788	* (((
	789	LoRaWAN protocol & radio-related commands.
	790	)))
52.1	791
76.7	792	(((
52.1	793	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	794	)))
52.1	795
76.7	796	(((
52.1	797	[[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	798	)))
52.1	799
76.7	800	(((
58.10	801	(% style="color:#4f81bd" %)* Commands special design for LHT65N
76.7	802	)))
52.1	803
76.7	804	(((
52.1	805	These commands are only valid for LHT65N, as below:
76.7	806	)))
52.1	807
55.4	808	== 4.1 Set Transmit Interval Time ==
52.1	809
	810	Feature: Change LoRaWAN End Node Transmit Interval.
	811
	812	AT Command: AT+TDC
	813
66.2	814	[[image:image-20220523150701-2.png]]
52.1	815
76.8	816	(((
52.1	817	Downlink Command: 0x01
76.8	818	)))
52.1	819
76.8	820	(((
52.1	821	Format: Command Code (0x01) followed by 3 bytes time value.
76.8	822	)))
52.1	823
76.8	824	(((
52.1	825	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	826	)))
52.1	827
76.8	828	* (((
	829	Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	830	)))
	831	* (((
	832	Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	833	)))
52.1	834
55.4	835	== 4.2 Set External Sensor Mode ==
52.1	836
	837	Feature: Change External Sensor Mode.
	838
	839	AT Command: AT+EXT
	840
66.2	841	[[image:image-20220523150759-3.png]]
52.1	842
76.8	843	(((
52.1	844	Downlink Command: 0xA2
76.8	845	)))
52.1	846
76.8	847	(((
52.1	848	Total bytes: 2 ~~ 5 bytes
76.8	849	)))
52.1	850
76.8	851	(((
66.2	852	Example:
76.8	853	)))
52.1	854
76.8	855	* (((
	856	0xA201: Set external sensor type to E1
	857	)))
	858	* (((
	859	0xA209: Same as AT+EXT=9
	860	)))
	861	* (((
	862	0xA20702003c,Same as AT+SETCNT=60
	863	)))
52.1	864
55.4	865	== 4.3 Enable/Disable uplink Temperature probe ID ==
52.1	866
	867	Feature: If PID is enabled, device will send the temperature probe ID on:
	868
	869	* First Packet after OTAA Join
	870	* Every 24 hours since the first packet.
	871
	872	PID is default set to disable (0)
	873
	874	AT Command:
	875
66.2	876	[[image:image-20220523150928-4.png]]
52.1	877
	878	Downlink Command:
	879
66.2	880	* 0xA800 ~-~-> AT+PID=0
	881	* 0xA801 ~-~-> AT+PID=1
52.1	882
55.4	883	== 4.4 Set Password ==
52.1	884
	885	Feature: Set device password, max 9 digits
	886
	887	AT Command: AT+PWORD
	888
66.2	889	[[image:image-20220523151052-5.png]]
52.1	890
76.8	891	(((
52.1	892	Downlink Command:
76.8	893	)))
52.1	894
76.8	895	(((
52.1	896	No downlink command for this feature.
76.8	897	)))
52.1	898
55.4	899	== 4.5 Quit AT Command ==
52.1	900
	901	Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
	902
	903	AT Command: AT+DISAT
	904
66.2	905	[[image:image-20220523151132-6.png]]
52.1	906
	907	Downlink Command:
	908
	909	No downlink command for this feature.
	910
55.4	911	== 4.6 Set to sleep mode ==
52.1	912
	913	Feature: Set device to sleep mode
	914
	915	AT Command: AT+SLEEP
	916
66.2	917	[[image:image-20220523151218-7.png]]
52.1	918
	919	Downlink Command:
	920
	921	* There is no downlink command to set to Sleep mode.
	922
55.4	923	== 4.7 Set system time ==
52.1	924
	925	Feature: Set system time, unix format. [[See here for format detail.>>path:#TimeStamp]]
	926
	927	AT Command:
	928
66.2	929	[[image:image-20220523151253-8.png]]
52.1	930
	931	Downlink Command:
	932
	933	0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
	934
55.4	935	== 4.8 Set Time Sync Mode ==
52.1	936
76.8	937	(((
52.1	938	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	939	)))
52.1	940
76.8	941	(((
52.1	942	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	943	)))
52.1	944
76.8	945	(((
52.1	946	AT Command:
76.8	947	)))
52.1	948
66.2	949	[[image:image-20220523151336-9.png]]
52.1	950
	951	Downlink Command:
	952
	953	0x28 01 ~/~/ Same As AT+SYNCMOD=1
	954
	955	0x28 00 ~/~/ Same As AT+SYNCMOD=0
	956
55.4	957	== 4.9 Set Time Sync Interval ==
52.1	958
	959	Feature: Define System time sync interval. SYNCTDC default value: 10 days.
	960
	961	AT Command:
	962
70.2	963	[[image:image-20220523151411-10.png]]
52.1	964
	965	Downlink Command:
	966
	967	0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
	968
55.4	969	== 4.10 Print data entries base on page. ==
52.1	970
	971	Feature: Print the sector data from start page to stop page (max is 416 pages).
	972
	973	AT Command: AT+PDTA
	974
70.2	975	[[image:image-20220523151450-11.png]]
52.1	976
	977	Downlink Command:
	978
	979	No downlink commands for feature
	980
55.4	981	== 4.11 Print last few data entries. ==
52.1	982
	983	Feature: Print the last few data entries
	984
	985	AT Command: AT+PLDTA
	986
70.2	987	[[image:image-20220523151524-12.png]]
52.1	988
	989	Downlink Command:
	990
	991	No downlink commands for feature
	992
55.4	993	== 4.12 Clear Flash Record ==
52.1	994
	995	Feature: Clear flash storage for data log feature.
	996
	997	AT Command: AT+CLRDTA
	998
70.2	999	[[image:image-20220523151556-13.png]]
52.1	1000
	1001	Downlink Command: 0xA3
	1002
	1003	* Example: 0xA301 ~/~/Same as AT+CLRDTA
	1004
55.4	1005	= 5. Battery & How to replace =
52.1	1006
55.4	1007	== 5.1 Battery Type ==
11.1	1008
	1009	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.
	1010
73.2	1011	(((
11.1	1012	The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
14.1	1013	[[image:image-20220515075034-1.png\|\|height="208" width="644"]]
73.2	1014	)))
11.1	1015
73.2	1016	(((
11.1	1017	The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
	1018
73.2	1019	)))
11.1	1020
55.4	1021	== 5.2 Replace Battery ==
11.1	1022
	1023	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.
	1024
	1025	[[image:image-20220515075440-2.png\|\|height="338" width="272"]][[image:image-20220515075625-3.png\|\|height="193" width="257"]]
	1026
55.4	1027	== 5.3 Battery Life Analyze ==
11.1	1028
73.2	1029	(((
11.1	1030	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:
	1031	https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf
73.2	1032	)))
11.1	1033
55.4	1034	= 6. Order Info =
11.1	1035
73.2	1036	(((
76.8	1037	Part Number: (% style="color:#4f81bd" %) LHT65N-XX-YY
73.2	1038	)))
2.1	1039
73.2	1040	(((
	1041	(% style="color:#4f81bd" %)XX (%%): The default frequency band
	1042	)))
2.1	1043
73.2	1044	* (((
	1045	(% style="color:#4f81bd" %) AS923(%%): LoRaWAN AS923 band
	1046	)))
	1047	* (((
	1048	(% style="color:#4f81bd" %) AU915(%%): LoRaWAN AU915 band
	1049	)))
	1050	* (((
	1051	(% style="color:#4f81bd" %) EU433(%%): LoRaWAN EU433 band
	1052	)))
	1053	* (((
	1054	(% style="color:#4f81bd" %) EU868(%%): LoRaWAN EU868 band
	1055	)))
	1056	* (((
	1057	(% style="color:#4f81bd" %) KR920(%%): LoRaWAN KR920 band
	1058	)))
	1059	* (((
	1060	(% style="color:#4f81bd" %) US915(%%): LoRaWAN US915 band
	1061	)))
	1062	* (((
	1063	(% style="color:#4f81bd" %) IN865(%%): LoRaWAN IN865 band
	1064	)))
	1065	* (((
	1066	(% style="color:#4f81bd" %) CN470(%%): LoRaWAN CN470 band
	1067	)))
4.1	1068
73.2	1069	(((
	1070	(% style="color:#4f81bd" %)YY(%%): Sensor Accessories
	1071	)))
14.1	1072
73.2	1073	* (((
	1074	(% style="color:#4f81bd" %)E3(%%): External Temperature Probe
	1075	)))
14.1	1076
55.4	1077	= 7. Packing Info =
4.1	1078
73.2	1079	(((
4.1	1080	Package Includes:
73.2	1081	)))
4.1	1082
73.2	1083	* (((
	1084	LHT65N Temperature & Humidity Sensor x 1
	1085	)))
	1086	* (((
	1087	Program cable x 1
	1088	)))
	1089	* (((
	1090	Optional external sensor
	1091	)))
4.1	1092
73.2	1093	(((
4.1	1094	Dimension and weight:
73.2	1095	)))
4.1	1096
73.2	1097	* (((
	1098	Device Size: 13.5 x 7 x 3 cm
	1099	)))
	1100	* (((
	1101	Device Weight: 105g
	1102	)))
	1103	* (((
	1104	Package Size / pcs : 14.5 x 8 x 5 cm
	1105	)))
	1106	* (((
	1107	Weight / pcs : 170g
	1108	)))
4.1	1109
55.4	1110	= 8. FCC Warning =
7.1	1111
73.2	1112	(((
7.1	1113	This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
73.2	1114	)))
7.1	1115
73.2	1116	(((
55.4	1117	(1) This device may not cause harmful interference；
73.2	1118	)))
7.1	1119
73.2	1120	(((
55.4	1121	(2) this device must accept any interference received, including interference that may cause undesired operation.
73.2	1122	)))

Wiki source code of LHT65N LoRaWAN Temperature & Humidity Sensor Manual

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