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Details

Page properties

Author

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1		-XWiki.Edwin
	1	+XWiki.Bei

Content

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1		-{{box cssClass="floatinginfobox" title="**Contents**"}}
	1	+(% style="text-align:center" %)
	2	+[[image:image-20220523115324-1.jpeg||_mstalt="469677" height="317" width="317"]]
	3	+
	4	+
	5	+(% _msthash="315237" _msttexthash="1697033" %)**LHT65N LoRaWAN Temperature & Humidity Sensor Manual**
	6	+
	7	+
	8	+
	9	+
	10	+(% _msthash="315238" _msttexthash="18964465" %)**Table of Contents：**
	11	+
2	2	{{toc/}}
3		-{{/box}}
4	4
5		-= Overview =
6	6
7		-[[image:LHT65N_10.png||alt="LHT65_Image" height="265" width="265"]]
8	8
9	9
10		-The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a(% class="mark" %) **built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% class="mark" %)**Temperature Sensor**(%%)**.**
	17	+= (% _msthash="277498" _msttexthash="253045" %)1. Introduction(%%) =
11	11
	19	+== (% _msthash="1532895" _msttexthash="1426958" %)1.1 What is LHT65N Temperature & Humidity Sensor(%%) ==
	20	+
	21	+(((
	22	+(% _msthash="506051" _msttexthash="24333127" %)
	23	+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**(%%)**.**
	24	+)))
	25	+
	26	+(((
	27	+(% _msthash="506052" _msttexthash="66005810" %)
12	12	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.
	29	+)))
13	13
	31	+(((
	32	+(% _msthash="506053" _msttexthash="4298047" %)
14	14	LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
	34	+)))
15	15
	36	+(((
	37	+(% _msthash="506054" _msttexthash="6016374" %)
16	16	LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
	39	+)))
17	17
18		-LHT65N supports (% class="mark" %)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.
	41	+(((
	42	+(% _msthash="506055" _msttexthash="17023136" %)
	43	+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.
	44	+)))
19	19
	46	+(((
	47	+(% _msthash="506056" _msttexthash="5557097" %)
20	20	*The actual battery life depends on how often to send data, please see the battery analyzer chapter.
	49	+)))
21	21
	51	+== (% _msthash="182559" _msttexthash="163319" %)1.2 Features(%%) ==
22	22
23		-== Features: ==
24		-
25	25	* Wall mountable
26	26	* LoRaWAN v1.0.3 Class A protocol
27	27	* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
...	...	@@ -34,577 +34,1245 @@
34	34	* Tri-color LED to indicate working status
35	35	* Datalog feature
36	36
37		-== Specification: ==
	65	+== (% _msthash="323570" _msttexthash="297635" %)1.3 Specification(%%) ==
38	38
39		-**Built-in Temperature Sensor:**
	67	+(((
	68	+(% _msthash="506057" _msttexthash="671437" %)**Built-in Temperature Sensor:**
	69	+)))
40	40
41		-* Resolution: 0.01 °C
42		-* Accuracy Tolerance : Typ ±0.3 °C
43		-* Long Term Drift: < 0.02 °C/yr
44		-* Operating Range: -40 ~~ 85 °C
	71	+* (((
	72	+(% _msthash="902993" _msttexthash="294424" %)
	73	+Resolution: 0.01 °C
	74	+)))
	75	+* (((
	76	+(% _msthash="902994" _msttexthash="690664" %)
	77	+Accuracy Tolerance : Typ ±0.3 °C
	78	+)))
	79	+* (((
	80	+(% _msthash="902995" _msttexthash="504647" %)
	81	+Long Term Drift: < 0.02 °C/yr
	82	+)))
	83	+* (((
	84	+(% _msthash="902996" _msttexthash="478257" %)
	85	+Operating Range: -40 ~~ 85 °C
	86	+)))
45	45
46		-**Built-in Humidity Sensor:**
	88	+(((
	89	+(% _msthash="506058" _msttexthash="544453" %)**Built-in Humidity Sensor:**
	90	+)))
47	47
48		-* Resolution: 0.04 %RH
49		-* Accuracy Tolerance : Typ ±3 %RH
50		-* Long Term Drift: < 0.02 °C/yr
51		-* Operating Range: 0 ~~ 96 %RH
	92	+* (((
	93	+(% _msthash="902997" _msttexthash="282438" %)
	94	+Resolution: 0.04 %RH
	95	+)))
	96	+* (((
	97	+(% _msthash="902998" _msttexthash="628771" %)
	98	+Accuracy Tolerance : Typ ±3 %RH
	99	+)))
	100	+* (((
	101	+(% _msthash="902999" _msttexthash="504647" %)
	102	+Long Term Drift: < 0.02 °C/yr
	103	+)))
	104	+* (((
	105	+(% _msthash="903000" _msttexthash="421291" %)
	106	+Operating Range: 0 ~~ 96 %RH
	107	+)))
52	52
53		-**External Temperature Sensor:**
	109	+(((
	110	+(% _msthash="506059" _msttexthash="680537" %)**External Temperature Sensor:**
	111	+)))
54	54
55		-* Resolution: 0.0625 °C
56		-* ±0.5°C accuracy from -10°C to +85°C
57		-* ±2°C accuracy from -55°C to +125°C
58		-* Operating Range: -55 °C ~~ 125 °C
	113	+* (((
	114	+(% _msthash="903001" _msttexthash="332254" %)
	115	+Resolution: 0.0625 °C
	116	+)))
	117	+* (((
	118	+(% _msthash="903002" _msttexthash="782600" %)
	119	+±0.5°C accuracy from -10°C to +85°C
	120	+)))
	121	+* (((
	122	+(% _msthash="903003" _msttexthash="729482" %)
	123	+±2°C accuracy from -55°C to +125°C
	124	+)))
	125	+* (((
	126	+(% _msthash="903004" _msttexthash="592540" %)
	127	+Operating Range: -55 °C ~~ 125 °C
	128	+)))
59	59
60		-= Connect LHT65N to IoT Server =
	130	+= (% _msthash="655759" _msttexthash="618618" %)2. Connect LHT65N to IoT Server(%%) =
61	61
62		-== How does LHT65N work? ==
	132	+== (% _msthash="462371" _msttexthash="410332" %)2.1 How does LHT65N work?(%%) ==
63	63
	134	+(((
	135	+(% _msthash="506060" _msttexthash="28254538" %)
64	64	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.
	137	+)))
65	65
	139	+(((
	140	+(% _msthash="506061" _msttexthash="48200724" %)
66	66	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.
	142	+)))
67	67
	144	+== (% _msthash="514384" _msttexthash="458666" %)2.2 How to Activate LHT65N?(%%) ==
68	68
69		-== How to Activate LHT65N? ==
70		-
	146	+(% _msthash="315239" _msttexthash="748241" %)
71	71	The LHT65N has two working modes:
72	72
73	73	* **Deep Sleep Mode**: LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
74	74	* **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.
75	75
	152	+(((
	153	+(% _msthash="506062" _msttexthash="6036823" %)
76	76	The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
	155	+)))
77	77
78		-[[image:image-20220515123819-1.png||height="379" width="317"]]
	157	+[[image:image-20220515123819-1.png||_mstalt="430742" height="379" width="317"]]
79	79
80		-|**Behavior on ACT**|**Function**|**Action**
81		-|**Pressing ACT between 1s < time < 3s**|Test uplink status|If LHT65N is already Joined to the LoRaWAN network, LHT65N will send an uplink packet, if LHT65N has an external sensor connected, blue led will blink once. If LHT65N has no external sensor, red led will blink once.
82		-|**Pressing ACT for more than 3s**|Active Device|green led will fast blink 5 times, LHT65N will enter working mode and start to JOIN LoRaWAN network. green led will solid turn on for 5 seconds after join in network.
83		-|**Fast press ACT 5 times**|Deactivate Device|red led will solid on for 5 seconds. This means LHT65N is in Deep Sleep Mode.
	159	+[[image:image-20220525110604-2.png||_mstalt="427531"]]
84	84
85		-== Example to join LoRaWAN network ==
	161	+== (% _msthash="882726" _msttexthash="838526" %)2.3 Example to join LoRaWAN network(%%) ==
86	86
87		-(% class="wikigeneratedid" %)
	163	+(% _msthash="315240" _msttexthash="9205482" class="wikigeneratedid" %)
88	88	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.
89	89
90	90	(% class="wikigeneratedid" %)
91		-[[image:image-20220522232442-1.png||height="387" width="648"]]
	167	+[[image:image-20220522232442-1.png||_mstalt="427830" height="387" width="648"]]
92	92
	169	+(% _msthash="315241" _msttexthash="10802155" %)
93	93	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:
94	94
95	95
96		-=== **Step 1**: Create Device n TTN ===
	173	+=== (% _msthash="670592" _msttexthash="634075" %)2.3.1 Step 1: Create Device n TTN(%%) ===
97	97
	175	+(% _msthash="315242" _msttexthash="1601782" %)
98	98	Create a device in TTN V3 with the OTAA keys from LHT65N.
99	99
	178	+(% _msthash="315243" _msttexthash="3694444" %)
100	100	Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
101	101
102		-[[image:image-20220522232812-2.png||height="219" width="279"]]
	181	+[[image:image-20220522232812-2.png||_mstalt="428467" height="219" width="279"]]
103	103
	183	+(% _msthash="315244" _msttexthash="3659149" %)
104	104	User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
105	105
	186	+(% _msthash="315245" _msttexthash="642889" %)
106	106	Add APP EUI in the application.
107	107
108		-[[image:image-20220522232916-3.png]]
	189	+[[image:image-20220522232916-3.png||_mstalt="430495"]]
109	109
	191	+[[image:image-20220522232932-4.png||_mstalt="430157"]]
110	110
111		-[[image:image-20220522232932-4.png]]
	193	+[[image:image-20220522232954-5.png||_mstalt="431847"]]
112	112
113		-
114		-[[image:image-20220522232954-5.png]]
115		-
	195	+(% _msthash="315246" _msttexthash="878800" %)
116	116	Note: LHT65N use same payload as LHT65.
117	117
118		-[[image:image-20220522233026-6.png]]
	198	+[[image:image-20220522233026-6.png||_mstalt="429403"]]
119	119
120	120
	201	+(% _msthash="315247" _msttexthash="595543" %)
121	121	Input APP EUI,  APP KEY and DEV EUI:
122	122
123		-[[image:image-20220522233118-7.png]]
	204	+[[image:image-20220522233118-7.png||_mstalt="430430"]]
124	124
125	125
126		-=== Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
	207	+=== (% _msthash="3537456" _msttexthash="3448549" %)2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds.(%%) ===
127	127
	209	+(% _msthash="315248" _msttexthash="14452321" %)
128	128	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.
129	129
130		-[[image:image-20220522233300-8.png]]
	212	+[[image:image-20220522233300-8.png||_mstalt="428389" height="219" width="722"]]
131	131
132	132
133		-== Uplink Payload: ==
	215	+== (% _msthash="320879" _msttexthash="294970" %)2.4 Uplink Payload(%%) ==
134	134
135		-The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and(% class="mark" %) every 20 minutes(%%) send one uplink by default.
	217	+(% _msthash="315249" _msttexthash="7722962" %)
	218	+The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
136	136
137		-After each uplink, the (% class="mark" %)BLUE LED(%%) will blink once.
	220	+(% _msthash="315250" _msttexthash="1322711" %)
	221	+After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.
138	138
	223	+(% border="1" style="background-color:#ffffcc; color:green; width:426px" %)
	224	+|(% style="width:97px" %)(((
	225	+(% _msthash="1817478" _msttexthash="161122" %)**Size(bytes)**
	226	+)))|(% style="width:39px" %)(((
	227	+(% _msthash="1817479" _msttexthash="4550" %)**2**
	228	+)))|(% style="width:100px" %)(((
	229	+(% _msthash="1817480" _msttexthash="4550" %)**2**
	230	+)))|(% style="width:77px" %)(((
	231	+(% _msthash="1817481" _msttexthash="4550" %)**2**
	232	+)))|(% style="width:47px" %)(((
	233	+(% _msthash="1817482" _msttexthash="4459" %)**1**
	234	+)))|(% style="width:51px" %)(((
	235	+(% _msthash="1817483" _msttexthash="4732" %)**4**
	236	+)))
	237	+|(% style="width:97px" %)(((
	238	+(% _msthash="1817484" _msttexthash="60203" %)**Value**
	239	+)))|(% style="width:39px" %)(((
	240	+[[BAT>>||anchor="H2.4.2BAT-BatteryInfo" _msthash="1817485" _msttexthash="22594"]]
	241	+)))|(% style="width:100px" %)(((
	242	+(((
	243	+[[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769"]]
	244	+)))
	245	+)))|(% style="width:77px" %)(((
	246	+(((
	247	+[[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2224743" _msttexthash="105872"]]
	248	+)))
139	139
140		-(% style="width:572px" %)
141		-|(% style="width:106px" %)**Size(bytes)**|(% style="width:71px" %)**2**|(% style="width:128px" %)**2**|(% style="width:103px" %)**2**|(% style="width:72px" %)**1**|(% style="width:89px" %)**4**
142		-|(% style="width:106px" %)**Value**|(% style="width:71px" %)[[BAT>>path:#Battery]]|(% style="width:128px" %)(((
143		-[[Built-In>>path:#SHT20_Temperature]]
	250	+(((
	251	+[[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224744" _msttexthash="117429"]]
	252	+)))
	253	+)))|(% style="width:47px" %)(((
	254	+[[Ext>>||anchor="H2.4.5Ext23" _msthash="1817486" _msttexthash="32331"]] #
	255	+)))|(% style="width:51px" %)(((
	256	+[[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545"]]
	257	+)))
144	144
145		-[[Temperature>>path:#SHT20_Temperature]]
146		-)))|(% style="width:103px" %)(((
147		-[[Built-in>>path:#SHT20_Humidity]]
148		-
149		-[[Humidity>>path:#SHT20_Humidity]]
150		-)))|(% style="width:72px" %)[[Ext>>path:#Extension_Sensor]] #|(% style="width:89px" %)[[Ext value>>path:#Extension_sensor_value]]
151		-
152	152	* The First 6 bytes: has fix meanings for every LHT65N.
153	153	* The 7th byte (EXT #): defines the external sensor model.
154		-* 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.)
	261	+* The 8(% _msthash="734721" _msttexthash="21372" %)^^th^^(%%) ~~ 11(% _msthash="734864" _msttexthash="21372" %)^^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.)
155	155
156		-=== Decoder in TTN V3 ===
	263	+=== (% _msthash="360269" _msttexthash="333762" %)2.4.1 Decoder in TTN V3(%%) ===
157	157
	265	+(% _msthash="315251" _msttexthash="9786491" %)
158	158	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.
159	159
	268	+(% _msthash="315252" _msttexthash="3928483" %)
160	160	Below is the position to put the decoder and LHT65N decoder can be download from here:
161	161
162		-[[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]
	271	+[[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0||_msthash="315253" _msttexthash="3509064"]]
163	163
164		-[[image:image-20220522234118-10.png]]
	273	+[[image:image-20220522234118-10.png||_mstalt="451464" height="353" width="729"]]
165	165
	275	+=== (% _msthash="411411" _msttexthash="383656" %)2.4.2 BAT-Battery Info(%%) ===
166	166
167		-=== BAT-Battery Info ===
168		-
	277	+(% _msthash="315254" _msttexthash="3122912" %)
169	169	These two bytes of BAT include the battery state and the actually voltage
170	170
171		-(% style="width:646px" %)
172		-|Bit(bit)|(% style="width:272px" %)[15:14]|(% style="width:214px" %)[13:0]
173		-|Value|(% style="width:272px" %)(((
174		-BAT Status
	280	+[[image:image-20220523152839-18.png||_mstalt="457613"]]
175	175
176		-00(b): Ultra Low ( BAT <= 2.50v)
	282	+[[image:image-20220522235639-1.png||_mstalt="431392" height="139" width="727"]]
177	177
178		-01(b): Low  (2.50v <=BAT <= 2.55v)
179		-
180		-10(b): OK   (2.55v <= BAT <=2.65v)
181		-
182		-11(b): Good   (BAT >= 2.65v)
183		-)))|(% style="width:214px" %)Actually BAT voltage
184		-
185		-[[image:image-20220522235639-1.png]]
186		-
	284	+(% _msthash="315255" _msttexthash="871611" %)
187	187	Check the battery voltage for LHT65N.
188	188
189	189	* BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
190	190	* Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
191	191
192		-=== Built-in Temperature ===
	290	+=== (% _msthash="600769" _msttexthash="565838" %)2.4.3 Built-in Temperature(%%) ===
193	193
194		-[[image:image-20220522235639-2.png]]
	292	+[[image:image-20220522235639-2.png||_mstalt="431756" height="138" width="722"]]
195	195
196	196	* Temperature:  0x0ABB/100=27.47℃
197	197
198		-[[image:image-20220522235639-3.png]]
	296	+[[image:image-20220522235639-3.png||_mstalt="432120"]]
199	199
200	200	* Temperature:  (0xF5C6-65536)/100=-26.18℃
201	201
202		-=== Built-in Humidity ===
	300	+=== (% _msthash="475891" _msttexthash="445120" %)2.4.4 Built-in Humidity(%%) ===
203	203
204		-[[image:image-20220522235639-4.png]]
	302	+[[image:image-20220522235639-4.png||_mstalt="432484" height="138" width="722"]]
205	205
206	206	* Humidity:    0x025C/10=60.4%
207	207
208		-=== Ext # ===
	306	+=== (% _msthash="116532" _msttexthash="87958" %)2.4.5 Ext #(%%) ===
209	209
	308	+(% _msthash="315256" _msttexthash="552240" %)
210	210	Bytes for External Sensor:
211	211
212		-(% style="width:624px" %)
213		-|(% style="width:139px" %)**EXT # Value**|(% style="width:484px" %)**External Sensor Type**
214		-|(% style="width:139px" %)0x01|(% style="width:484px" %)Sensor E3, Temperature Sensor
215		-|(% style="width:139px" %)0x09|(% style="width:484px" %)Sensor E3, Temperature Sensor, Datalog Mod
	311	+[[image:image-20220523152822-17.png||_mstalt="454545"]]
216	216
217		-=== Ext value ===
	313	+=== (% _msthash="221429" _msttexthash="200655" %)2.4.6 Ext value(%%) ===
218	218
219		-==== Ext~=1, E3 Temperature Sensor ====
	315	+==== (% _msthash="1005901" _msttexthash="877578" %)2.4.6.1 Ext~=1, E3 Temperature Sensor(%%) ====
220	220
221		-[[image:image-20220522235639-5.png]]
	317	+[[image:image-20220522235639-5.png||_mstalt="432848"]]
222	222
223		-
224	224	* DS18B20 temp=0x0ADD/100=27.81℃
225	225
	321	+(% _msthash="315257" _msttexthash="1038479" %)
226	226	The last 2 bytes of data are meaningless
227	227
	324	+[[image:image-20220522235639-6.png||_mstalt="433212"]]
228	228
229		-
230		-[[image:image-20220522235639-6.png]]
231		-
232	232	* External temperature= (0xF54F-65536)/100=-27.37℃
233	233
	328	+(((
	329	+(% _msthash="506063" _msttexthash="1038479" %)
234	234	The last 2 bytes of data are meaningless
	331	+)))
235	235
236		-
	333	+(((
	334	+(% _msthash="506064" _msttexthash="21185632" %)
237	237	If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
	336	+)))
238	238
239	239
240		-==== Ext~=9, E3 sensor with Unix Timestamp ====
	339	+==== (% _msthash="1389752" _msttexthash="1234766" %)2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp(%%) ====
241	241
	341	+(% _msthash="315258" _msttexthash="41539368" %)
242	242	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:
243	243
	344	+(% border="1" style="background-color:#ffffcc; color:green; width:510px" %)
	345	+|(% style="width:96px" %)(((
	346	+(% _msthash="1817488" _msttexthash="161122" %)**Size(bytes)**
	347	+)))|(% style="width:71px" %)(((
	348	+(% _msthash="1817489" _msttexthash="4550" %)**2**
	349	+)))|(% style="width:99px" %)(((
	350	+(% _msthash="1817490" _msttexthash="4550" %)**2**
	351	+)))|(% style="width:132px" %)(((
	352	+(% _msthash="1817491" _msttexthash="4550" %)**2**
	353	+)))|(% style="width:54px" %)(((
	354	+(% _msthash="1817492" _msttexthash="4459" %)**1**
	355	+)))|(% style="width:64px" %)(((
	356	+(% _msthash="1817493" _msttexthash="4732" %)**4**
	357	+)))
	358	+|(% style="width:96px" %)(((
	359	+(% _msthash="1817494" _msttexthash="60203" %)**Value**
	360	+)))|(% style="width:71px" %)(((
	361	+[[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517"]]
	362	+)))|(% style="width:99px" %)(((
	363	+(((
	364	+[[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464"]]
	365	+)))
244	244
245		-(% style="width:697px" %)
246		-|(% style="width:96px" %)**Size(bytes)**|(% style="width:164px" %)**2**|(% style="width:104px" %)**2**|(% style="width:106px" %)**2**|(% style="width:108px" %)**1**|(% style="width:116px" %)**4**
247		-|(% style="width:96px" %)**Value**|(% style="width:164px" %)[[External temperature>>path:#DS18b20_value]]|(% style="width:104px" %)(((
248		-[[Built-In>>path:#SHT20_Temperature]]
	367	+(((
	368	+[[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041"]]
	369	+)))
	370	+)))|(% style="width:132px" %)(((
	371	+(((
	372	+(% _msthash="2224747" _msttexthash="136331" %)
	373	+BAT Status &
	374	+)))
249	249
250		-[[Temperature>>path:#SHT20_Temperature]]
251		-)))|(% style="width:106px" %)(((
252		-[[BAT Status &>>path:#BAT_Humidity]]
253		-
254		-[[Built-in>>path:#BAT_Humidity]]
255		-
256		-[[Humidity>>path:#BAT_Humidity]]
257		-)))|(% style="width:108px" %)[[Status & Ext>>path:#Status_EXT]]|(% style="width:116px" %)(((
258		-[[Unix>>path:#Unix_Time_Stamp]]
259		-
260		-[[Time Stamp>>path:#Unix_Time_Stamp]]
	376	+(((
	377	+[[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181"]]
261	261	)))
	379	+)))|(% style="width:54px" %)(((
	380	+(% _msthash="1817496" _msttexthash="147225" %)
	381	+Status & Ext
	382	+)))|(% style="width:64px" %)(((
	383	+(((
	384	+[[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175"]]
	385	+)))
	386	+)))
262	262
263		-* **Battery status & **[[(% class="wikiinternallink wikiinternallink" %)**Built-in Humidity**>>path:#SHT20_Humidity]]
	388	+* (% _msthash="504958" _msttexthash="857922" %)**Battery status & (% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)Built-in Humidity(%%)**
264	264
265		-(% style="width:587px" %)
266		-|Bit(bit)|(% style="width:280px" %)[15:14]|(% style="width:136px" %)[11:0]
267		-|Value|(% style="width:280px" %)(((
	390	+(% border="1" style="background-color:#ffffcc; color:green; width:469px" %)
	391	+|(% _msthash="1230918" _msttexthash="93158" style="width:65px" %)Bit(bit)|(% _msthash="1230919" _msttexthash="57954" style="width:267px" %)[15:14]|(% _msthash="1230920" _msttexthash="48022" style="width:134px" %)[11:0]
	392	+|(% _msthash="1230921" _msttexthash="60203" style="width:65px" %)Value|(% style="width:267px" %)(((
	393	+(% _msthash="1817497" _msttexthash="128427" %)
268	268	BAT Status
269	269
	396	+(% _msthash="1817498" _msttexthash="472784" %)
270	270	00(b): Ultra Low ( BAT <= 2.50v)
271	271
	399	+(% _msthash="1817499" _msttexthash="483678" %)
272	272	01(b): Low  (2.50v <=BAT <= 2.55v)
273	273
	402	+(% _msthash="1817500" _msttexthash="440791" %)
274	274	10(b): OK   (2.55v <= BAT <=2.65v)
275	275
	405	+(% _msthash="1817501" _msttexthash="334191" %)
276	276	11(b): Good   (BAT >= 2.65v)
277		-)))|(% style="width:136px" %)(((
278		-[[Built-in Humidity>>path:#SHT20_Humidity]]
	407	+)))|(% style="width:134px" %)(((
	408	+[[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181"]]
279	279
280	280
281	281	)))
282	282
283		-* **Status & Ext Byte**
	413	+* (% _msthash="504959" _msttexthash="245037" %)**Status & Ext Byte**
284	284
285		-(% style="width:732px" %)
286		-|(% style="width:128px" %)**Bits**|(% style="width:102px" %)**7**|(% style="width:145px" %)**6**|(% style="width:117px" %)**5**|(% style="width:147px" %)**4**|(% style="width:90px" %)**[3:0]**
287		-|(% style="width:128px" %)**Status & Ext**|(% style="width:102px" %)Not Defined|(% style="width:145px" %)Poll Message Flag|(% style="width:117px" %)Sync time OK|(% style="width:147px" %)Unix Time Request|(% style="width:90px" %)(((
288		-Ext:
	415	+[[image:image-20220523152434-16.png||_mstalt="453921"]]
289	289
290		-0b(1001)
291		-)))
292		-
293	293	* Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
294	294	* 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.
295	295	* 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)
296	296
297		-== Show data on Datacake ==
	421	+== (% _msthash="487097" _msttexthash="454818" %)2.5 Show data on Datacake(%%) ==
298	298
	423	+(% _msthash="315259" _msttexthash="20933341" %)
299	299	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:
300	300
301		-
	426	+(((
	427	+(% _msthash="506065" _msttexthash="4753983" %)
302	302	**Step 1**: Be sure that your device is programmed and properly connected to the LoRaWAN network.
	429	+)))
303	303
	431	+(((
	432	+(% _msthash="506066" _msttexthash="14696682" %)
304	304	**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.
	434	+)))
305	305
306		-
	436	+(((
	437	+(% _msthash="506067" _msttexthash="180297" %)
307	307	Add Datacake:
	439	+)))
308	308
309		-[[image:image-20220523000825-7.png||height="262" width="583"]]
	441	+[[image:image-20220523000825-7.png||_mstalt="429884" height="262" width="583"]]
310	310
311	311
	444	+(% _msthash="315260" _msttexthash="750178" %)
312	312	Select default key as Access Key:
313	313
314		-[[image:image-20220523000825-8.png||height="453" width="406"]]
	447	+[[image:image-20220523000825-8.png||_mstalt="430248" height="453" width="406"]]
315	315
316		-
	449	+(% _msthash="315261" _msttexthash="2134964" %)
317	317	In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
318	318
319		-[[image:image-20220523000825-9.png||height="366" width="392"]]
	452	+[[image:image-20220523000825-9.png||_mstalt="430612" height="366" width="392"]]
320	320
	454	+[[image:image-20220523000825-10.png||_mstalt="450619" height="413" width="728"]]
321	321
	456	+== (% _msthash="350454" _msttexthash="323544" %)2.6 Datalog Feature(%%) ==
322	322
323		-[[image:image-20220523000825-10.png||height="432" width="762"]]
	458	+(% _msthash="315262" _msttexthash="32283004" %)
	459	+Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, LHT65N will store the reading for future retrieving purposes. There are two ways for IoT servers to get datalog from LHT65N.
324	324
	461	+=== (% _msthash="886158" _msttexthash="842426" %)2.6.1 Ways to get datalog via LoRaWAN(%%) ===
325	325
326		-== Datalog Feature ==
	463	+(% _msthash="315263" _msttexthash="409604" %)
	464	+There are two methods:
327	327
328		-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.
	466	+1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
	467	+1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will send all messages after network recover.
329	329
330		-=== Unix TimeStamp ===
	469	+=== (% _msthash="369915" _msttexthash="342797" %)2.6.2 Unix TimeStamp(%%) ===
331	331
	471	+(% _msthash="315264" _msttexthash="1182285" %)
332	332	LHT65N uses Unix TimeStamp format based on
333	333
334		-[[image:image-20220523001219-11.png||height="97" width="627"]]
	474	+[[image:image-20220523001219-11.png||_mstalt="450450" height="97" width="627"]]
335	335
336	336
	477	+(((
	478	+(% _msthash="506068" _msttexthash="2717234" %)
337	337	User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
	480	+)))
338	338
	482	+(((
	483	+(% _msthash="506069" _msttexthash="709813" %)
339	339	Below is the converter example
	485	+)))
340	340
341		-[[image:image-20220523001219-12.png||height="353" width="853"]]
	487	+[[image:image-20220523001219-12.png||_mstalt="450827" height="298" width="720"]]
342	342
	489	+(% _msthash="315265" _msttexthash="15137317" %)
343	343	So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
344	344
	492	+=== (% _msthash="359294" _msttexthash="332748" %)2.6.3 Set Device Time(%%) ===
345	345
346		-=== Set Device Time ===
347		-
	494	+(((
	495	+(% _msthash="506070" _msttexthash="4521946" %)
348	348	There are two ways to set device’s time:
	497	+)))
349	349
350		-**~1. Through LoRaWAN MAC Command (Default settings)**
	499	+(((
	500	+(% _msthash="506071" _msttexthash="1498471" %)**1. Through LoRaWAN MAC Command (Default settings)**
	501	+)))
351	351
	503	+(((
	504	+(% _msthash="506072" _msttexthash="2126267" %)
352	352	User need to set SYNCMOD=1 to enable sync time via MAC command.
	506	+)))
353	353
	508	+(((
	509	+(% _msthash="506073" _msttexthash="54430324" %)
354	354	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).
	511	+)))
355	355
	513	+(((
	514	+(% _msthash="506074" _msttexthash="92531127" %)
356	356	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.
	516	+)))
357	357
	518	+(((
	519	+
	520	+)))
358	358
359		-**2. Manually Set Time**
	522	+(((
	523	+(% _msthash="506075" _msttexthash="329719" %)**2. Manually Set Time**
	524	+)))
360	360
	526	+(((
	527	+(% _msthash="506076" _msttexthash="7889297" %)
361	361	User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
	529	+)))
362	362
	531	+=== (% _msthash="460759" _msttexthash="430001" %)2.6.4 Poll sensor value(%%) ===
363	363
364		-=== Poll sensor value ===
365		-
	533	+(% _msthash="315266" _msttexthash="4955821" %)
366	366	User can poll sensor value based on timestamps from the server. Below is the downlink command.
367	367
	536	+[[image:image-20220523152302-15.png||_mstalt="451581"]]
368	368
369		-(% style="width:454px" %)
370		-|(% style="width:69px" %)1byte|(% style="width:129px" %)4bytes|(% style="width:134px" %)4bytes|(% style="width:119px" %)1byte
371		-|(% style="width:69px" %)31|(% style="width:129px" %)Timestamp start|(% style="width:134px" %)Timestamp end|(% style="width:119px" %)Uplink Interval
372		-
373		-
	538	+(((
	539	+(% _msthash="506077" _msttexthash="14670916" %)
374	374	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.
	541	+)))
375	375
	543	+(((
	544	+For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(% style="display:none" %)
	545	+)))
376	376
377		-For example, downlink command 31 5FC5F350 5FC6 0160 05
378		-
	547	+(((
	548	+(% _msthash="506079" _msttexthash="6907459" %)
379	379	Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
	550	+)))
380	380
	552	+(((
	553	+(% _msthash="506080" _msttexthash="23531573" %)
381	381	Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
	555	+)))
382	382
383	383
384		-=== Datalog Uplink payload ===
	558	+=== (% _msthash="650923" _msttexthash="614185" %)2.6.5 Datalog Uplink payload(%%) ===
385	385
	560	+(% _msthash="315267" _msttexthash="2245087" %)
386	386	The Datalog poll reply uplink will use below payload format.
387	387
	563	+(((
	564	+(% _msthash="506081" _msttexthash="451581" %)**Retrieval data payload**
	565	+)))
388	388
389		-Retrieval data payload
	567	+(% border="1" style="background-color:#ffffcc; color:green; width:510px" %)
	568	+|(% style="width:93px" %)(((
	569	+(((
	570	+(% _msthash="2224750" _msttexthash="161122" %)**Size(bytes)**
	571	+)))
	572	+)))|(% style="width:71px" %)(((
	573	+(((
	574	+(% _msthash="2224751" _msttexthash="4550" %)**2**
	575	+)))
	576	+)))|(% style="width:102px" %)(((
	577	+(((
	578	+(% _msthash="2224752" _msttexthash="4550" %)**2**
	579	+)))
	580	+)))|(% style="width:86px" %)(((
	581	+(((
	582	+(% _msthash="2224753" _msttexthash="4550" %)**2**
	583	+)))
	584	+)))|(% style="width:86px" %)(((
	585	+(((
	586	+(% _msthash="2224754" _msttexthash="4459" %)**1**
	587	+)))
	588	+)))|(% style="width:48px" %)(((
	589	+(((
	590	+(% _msthash="2224755" _msttexthash="4732" %)**4**
	591	+)))
	592	+)))
	593	+|(% style="width:93px" %)(((
	594	+(((
	595	+(% _msthash="2224756" _msttexthash="60203" %)**Value**
	596	+)))
	597	+)))|(% style="width:71px" %)(((
	598	+(((
	599	+[[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672"]]
	600	+)))
	601	+)))|(% style="width:102px" %)(((
	602	+(((
	603	+(((
	604	+[[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065"]]
	605	+)))
	606	+)))
390	390
391		-|**Size(bytes)**|**2**|**2**|**2**|**1**|**4**
392		-|**Value**|[[External sensor data>>path:#Extension_sensor_value]]|(((
393		-[[Built-In>>path:#SHT20_Temperature]]
	608	+(((
	609	+(((
	610	+[[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041"]]
	611	+)))
	612	+)))
	613	+)))|(% style="width:86px" %)(((
	614	+(((
	615	+(((
	616	+[[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872"]]
	617	+)))
	618	+)))
394	394
395		-[[Temperature>>path:#SHT20_Temperature]]
396		-)))|(((
397		-[[Built-in>>path:#SHT20_Humidity]]
	620	+(((
	621	+(((
	622	+[[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429"]]
	623	+)))
	624	+)))
	625	+)))|(% style="width:86px" %)(((
	626	+(((
	627	+(% _msthash="2224758" _msttexthash="390390" %)
	628	+Poll message flag & Ext
	629	+)))
	630	+)))|(% style="width:48px" %)(((
	631	+(((
	632	+(((
	633	+[[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175"]]
	634	+)))
	635	+)))
398	398
399		-[[Humidity>>path:#SHT20_Humidity]]
400		-)))|[[Poll message flag & Ext>>path:#Poll_EXT]]|(((
401		-[[Unix Time Stamp>>path:#Unix_Time_Stamp]]
	637	+(((
	638	+(((
	639	+
	640	+)))
	641	+)))
	642	+)))
402	402
	644	+(% _msthash="315268" _msttexthash="390390" %)**Poll message flag & Ext**
	645	+
	646	+[[image:image-20220523152208-14.png||_mstalt="452920"]]
	647	+
	648	+(((
	649	+(((
	650	+(% _msthash="736723" _msttexthash="2005003" %)
	651	+Poll Message Flag: 1: This message is a poll message reply.
	652	+)))
	653	+)))
	654	+
	655	+* (((
	656	+(((
	657	+(% _msthash="1197157" _msttexthash="561548" %)
	658	+Poll Message Flag is set to 1.
	659	+)))
	660	+)))
	661	+* (((
	662	+(((
	663	+(% _msthash="1197158" _msttexthash="9284964" %)
	664	+Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
	665	+)))
	666	+)))
	667	+
	668	+(((
	669	+(((
	670	+(% _msthash="736724" _msttexthash="2242344" %)
	671	+For example, in US915 band, the max payload for different DR is:
	672	+)))
	673	+)))
	674	+
	675	+(((
	676	+(((
	677	+(% _msthash="736725" _msttexthash="1065532" %)
	678	+a) DR0: max is 11 bytes so one entry of data
	679	+)))
	680	+)))
	681	+
	682	+(((
	683	+(((
	684	+(% _msthash="736726" _msttexthash="3265665" %)
	685	+b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
	686	+)))
	687	+)))
	688	+
	689	+(((
	690	+(((
	691	+(% _msthash="736727" _msttexthash="1454115" %)
	692	+c) DR2: total payload includes 11 entries of data
	693	+)))
	694	+)))
	695	+
	696	+(((
	697	+(((
	698	+(% _msthash="736728" _msttexthash="1483924" %)
	699	+d) DR3: total payload includes 22 entries of data.
	700	+)))
	701	+)))
	702	+
	703	+(((
	704	+(((
	705	+(% _msthash="736729" _msttexthash="5848349" %)
	706	+If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0
	707	+)))
	708	+)))
	709	+
	710	+
	711	+(% _msthash="315269" _msttexthash="104767" %)**Example:**
	712	+
	713	+(% _msthash="315270" _msttexthash="913822" %)
	714	+If LHT65N has below data inside Flash:
	715	+
	716	+[[image:image-20220523144455-1.png||_mstalt="430040" height="335" width="735"]]
	717	+
	718	+(((
	719	+(% _msthash="506082" _msttexthash="1663961" %)
	720	+If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
	721	+)))
	722	+
	723	+(((
	724	+(% _msthash="506083" _msttexthash="1092494" %)
	725	+ Where : Start time: 60065F97 = time 21/1/19 04:27:03
	726	+)))
	727	+
	728	+(((
	729	+(% _msthash="506084" _msttexthash="737269" %)
	730	+ Stop time 60066DA7= time 21/1/19 05:27:03
	731	+)))
	732	+
	733	+(((
403	403
404	404	)))
405	405
	737	+(((
	738	+(% _msthash="506085" _msttexthash="751218" %)
	739	+LHT65N will uplink this payload.
	740	+)))
406	406
407		-Poll message flag & Ext
	742	+[[image:image-20220523001219-13.png||_mstalt="451204" height="421" width="727"]]
408	408
	744	+(% _msthash="315271" _msttexthash="12012546" %)
	745	+7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
409	409
410		-|**Bits**|**7**|**6**|**5**|**4**|**[3:0]**
411		-|**Status & Ext**|Not Defined|Poll Message Flag|Sync time OK|Unix Time Request|(((
412		-Ext:
	747	+(% _msthash="315272" _msttexthash="95618250" %)
	748	+其中，前 11 个字节表示第一个条目：
413	413
414		-0b(1001)
	750	+(% _msthash="315273" _msttexthash="274846" %)
	751	+7FFF089801464160065F97
	752	+
	753	+(% _msthash="315274" _msttexthash="23352186" %)
	754	+外部传感器数据=0x7FFF/100=327.67
	755	+
	756	+(% _msthash="315275" _msttexthash="5286827" %)
	757	+温度=0x0898/100=22.00
	758	+
	759	+(% _msthash="315276" _msttexthash="7131241" %)
	760	+嗡嗡声=0x0146/10=32.6
	761	+
	762	+(% _msthash="315277" _msttexthash="118235416" %)
	763	+轮询消息标志 & Ext=0x41，表示回复数据，Ext=1
	764	+
	765	+(% _msthash="315278" _msttexthash="95647201" %)
	766	+Unix 时间是 0x60065F97=1611030423s=21/1/19 04：27：03
	767	+
	768	+
	769	+== (% _msthash="197717" _msttexthash="16752736" %)2.7 报警模式(%%) ==
	770	+
	771	+(% _msthash="315279" _msttexthash="614443986" %)
	772	+当设备处于报警模式时，它会在短时间内检查内置传感器温度。如果温度超过预配置范围，它将立即发送上行链路。
	773	+
	774	+(((
	775	+(% _msthash="506086" _msttexthash="304704764" style="color:red" %)注意：报警模式会增加一点功耗，我们建议在启用此功能时延长正常读取时间。
415	415	)))
416	416
	778	+(% _msthash="315280" _msttexthash="38172992" %)**报警模式的 AT 命令：**
417	417
418		-Poll Message Flag: 1: This message is a poll message reply.
	780	+(% class="box infomessage" %)
	781	+(((
	782	+(% _istranslated="1" _mstmutation="1" %)**AT+WMOD=1**(%%)：启用/禁用报警模式。（0：禁用，1：启用）
419	419
420		-* Poll Message Flag is set to 1.
421		-* Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
	784	+(% _msthash="506088" _msttexthash="258873758" %)
	785	+(% _istranslated="1" %)**AT+CITEMP=1**(%%)：检查警报温度的时间间隔。（单位：分钟）
422	422
423		-For example, in US915 band, the max payload for different DR is:
	787	+(% _msthash="506089" _msttexthash="154134227" %)
	788	+(% _istranslated="1" %)**AT+ARTEMP**(%%)： 获取或设置内部温度传感器报警范围
424	424
425		-a)      DR0: max is 11 bytes so one entry of data
	790	+(% _istranslated="1" _mstmutation="1" %)**AT+ARTEMP=？ **(%%)：获取内部温度传感器报警范围(% style="display:none" %)
426	426
427		-b)      DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
	792	+(% _msthash="506091" _msttexthash="225614246" %)
	793	+(% _istranslated="1" %)**AT+ARTEMP=45，105**(%%)：将内部温度传感器报警范围设置为 45 至 105。
	794	+)))
428	428
429		-c)      DR2: total payload includes 11 entries of data
	796	+== ==
430	430
431		-d)      DR3: total payload includes 22 entries of data.
	798	+== (% _msthash="276471" _msttexthash="12239526" %)2.8 指示灯(%%) ==
432	432
433		-If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0
	800	+(((
	801	+(% _msthash="506092" _msttexthash="130028808" %)
	802	+LHT65N具有三色LED，可轻松显示不同的舞台。
	803	+)))
434	434
	805	+(((
	806	+(% _msthash="506093" _msttexthash="151611343" %)
	807	+按下 ACT 按钮时，LED 将按照带有 ACT 按钮的 LED 状态工作。
	808	+)))
435	435
436		-**Example:**
	810	+(((
	811	+(% _msthash="506094" _msttexthash="33759063" %)
	812	+正常工作状态下：
	813	+)))
437	437
438		-If LHT65N has below data inside Flash:
	815	+* (((
	816	+(% _msthash="903005" _msttexthash="141916112" %)
	817	+对于每个上行链路，蓝色 LED 或红色 LED 将闪烁一次。
	818	+)))
	819	+* (((
	820	+(% _msthash="903006" _msttexthash="49182913" %)
	821	+连接外部传感器时的蓝色 LED
	822	+)))
	823	+* (((
	824	+(% _msthash="903007" _msttexthash="55309774" %)
	825	+未连接外部传感器时的红色 LED
	826	+)))
	827	+* (((
	828	+(% _msthash="903008" _msttexthash="126991982" %)
	829	+对于每个成功的下行链路，紫色 LED 将闪烁一次
	830	+)))
439	439
440		-Flash Addr   |Unix Time | Ext | BAT voltage|  Value
	832	+----
441	441
442		-80196E0 21/1/19 04:27:03 1 3145 sht_temp=22.00 sht_hum=32.6 ds_temp=327.67
	834	+== (% _msthash="298350" _msttexthash="8069152" %)2.9 安装(%%) ==
443	443
444		-80196F0 21/1/19 04:28:57 1 3145 sht_temp=21.90 sht_hum=33.1 ds_temp=327.67
	836	+[[image:image-20220516231650-1.png||_mstalt="5390151" alt="图片-20220516231650-1.png" height="436" width="428"]]
445	445
446		-8019700 21/1/19 04:30:30 1 3145 sht_temp=21.81 sht_hum=33.4 ds_temp=327.67
	838	+= (% _msthash="528658" _msttexthash="22116432" %)3. 传感器和配件(%%) =
447	447
448		-8019710 21/1/19 04:40:30 1 3145 sht_temp=21.65 sht_hum=33.7 ds_temp=327.67
	840	+== (% _msthash="487110" _msttexthash="17620759" %)3.1 E3温度探头(%%) ==
449	449
450		-8019720 21/1/19 04:50:30 1 3147 sht_temp=21.55 sht_hum=34.1 ds_temp=327.67
	842	+[[image:image-20220515080154-4.png||_mstalt="5391243" alt="图片-20220515080154-4.png" height="182" width="161"]] [[image:image-20220515080330-5.png||_mstalt="5390346" alt="图片-20220515080330-5.png" height="201" width="195"]]
451	451
452		-8019730 21/1/19 05:00:30 1 3149 sht_temp=21.50 sht_hum=34.1 ds_temp=327.67
453	453
454		-8019740 21/1/19 05:10:30 1 3149 sht_temp=21.43 sht_hum=34.6 ds_temp=327.67
	845	+(% _msthash="315354" _msttexthash="50315928" %)
	846	+带 2 米电缆长的温度传感器
455	455
456		-8019750 21/1/19 05:20:30 1 3151 sht_temp=21.35 sht_hum=34.9 ds_temp=327.67
	848	+* 分辨率：0.0625°C
	849	+* -10°C 至 +85°C 范围内的 ±0.5°C 精度
	850	+* -55°C 至 +125°C 范围内的 ±2°C 精度
	851	+* 工作范围： -40 ~~ 125 °C
	852	+* -55°C 至 125°C
	853	+* 工作电压 2.35v ~~ 5v
457	457
	855	+= (% _msthash="1745419" _msttexthash="88144758" %)4. 通过 AT 命令或 LoRaWAN 下行链路配置 LHT65N(%%) =
458	458
459		-If user sends below downlink command:
	857	+(((
	858	+(% _msthash="506246" _msttexthash="2005926" %)
	859	+Use can configure LHT65N via AT Command or LoRaWAN Downlink.
	860	+)))
460	460
461		-3160065F9760066DA705
	862	+* (((
	863	+(% _msthash="903318" _msttexthash="635544" %)
	864	+AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
	865	+)))
	866	+* (((
	867	+(% _msthash="903319" _msttexthash="2004301" %)
	868	+LoRaWAN Downlink instruction for different platforms:
	869	+)))
462	462
463		- Where : Start time: 60065F97 = time 21/1/19 04:27:03
	871	+(((
	872	+[[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||_msthash="506247" _msttexthash="3599349"]]
	873	+)))
464	464
465		- Stop time 60066DA7= time 21/1/19 05:27:03
	875	+(((
	876	+(% _msthash="506248" _msttexthash="2144051" %)
	877	+There are two kinds of commands to configure LHT65N, they are:
	878	+)))
466	466
	880	+(((
	881	+(% _msthash="506249" _msttexthash="317850" style="color:#4f81bd" %)* **General Commands**.
	882	+)))
467	467
468		-LHT65N will uplink this payload.
	884	+(((
	885	+(% _msthash="506250" _msttexthash="774527" %)
	886	+These commands are to configure:
	887	+)))
469	469
470		-[[image:image-20220523001219-13.png]]
	889	+* (((
	890	+(% _msthash="903320" _msttexthash="1503580" %)
	891	+General system settings like: uplink interval.
	892	+)))
	893	+* (((
	894	+(% _msthash="903321" _msttexthash="1244334" %)
	895	+LoRaWAN protocol & radio-related commands.
	896	+)))
471	471
472		-7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
	898	+(((
	899	+(% _msthash="506251" _msttexthash="8343023" %)
	900	+They are the same for all Dragino Devices which supports DLWS-005 LoRaWAN Stack(Note~*~*). These commands can be found on the wiki:
	901	+)))
473	473
474		-Where the first 11 bytes is for the first entry:
	903	+(((
	904	+[[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_Downlink_Command>>url:http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command||_msthash="506252" _msttexthash="3434769"]]
	905	+)))
475	475
476		-7FFF089801464160065F97
	907	+(((
	908	+(% style="color:#4f81bd" %)* (% _msthash="506253" _msttexthash="792038" %)**Commands special design for LHT65N**
	909	+)))
477	477
478		-Ext sensor data=0x7FFF/100=327.67
	911	+(((
	912	+(% _msthash="506254" _msttexthash="1501357" %)
	913	+These commands are only valid for LHT65N, as below:
	914	+)))
479	479
480		-Temp=0x0898/100=22.00
	916	+== (% _msthash="708253" _msttexthash="668772" %)4.1 Set Transmit Interval Time(%%) ==
481	481
482		-Hum=0x0146/10=32.6
	918	+(% _msthash="315355" _msttexthash="1659268" %)
	919	+Feature: Change LoRaWAN End Node Transmit Interval.
483	483
484		-poll message flag & Ext=0x41,means reply data,Ext=1
	921	+(% _msthash="315356" _msttexthash="241696" %)**AT Command: AT+TDC**
485	485
486		-Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
	923	+[[image:image-20220523150701-2.png||_mstalt="427453"]]
487	487
	925	+(((
	926	+(% _msthash="506255" _msttexthash="381992" %)**Downlink Command: 0x01**
	927	+)))
488	488
489		-== Alarm Mode ==
	929	+(((
	930	+(% _msthash="506256" _msttexthash="1996592" %)
	931	+Format: Command Code (0x01) followed by 3 bytes time value.
	932	+)))
490	490
491		-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.
	934	+(((
	935	+(% _msthash="506257" _msttexthash="12934649" %)
	936	+If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	937	+)))
492	492
	939	+* (((
	940	+(% _msthash="903322" _msttexthash="3250546" %)
	941	+**Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	942	+)))
	943	+* (((
	944	+(% _msthash="903323" _msttexthash="3253315" %)
	945	+**Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	946	+)))
493	493
494		-Note: Alarm mode will increase a little big the power consumption, we recommend extending the normal reading time when enabling this feature.
	948	+== (% _msthash="614770" _msttexthash="578240" %)4.2 Set External Sensor Mode(%%) ==
495	495
	950	+(% _msthash="315357" _msttexthash="975117" %)
	951	+Feature: Change External Sensor Mode.
496	496
497		-AT Commands for Alarm mode:
	953	+(% _msthash="315358" _msttexthash="248118" %)**AT Command: AT+EXT**
498	498
499		-**AT+WMOD=1**: Enable/Disable Alarm Mode. (0:Disable, 1: Enable)
	955	+[[image:image-20220523150759-3.png||_mstalt="432146"]]
500	500
501		-**AT+CITEMP=1**: The interval to check the temperature for Alarm. (Unit: minute)
	957	+(((
	958	+(% _msthash="506258" _msttexthash="387855" %)**Downlink Command: 0xA2**
	959	+)))
502	502
	961	+(((
	962	+(% _msthash="506259" _msttexthash="395629" %)
	963	+Total bytes: 2 ~~ 5 bytes
	964	+)))
503	503
	966	+(((
	967	+(% _msthash="506260" _msttexthash="104767" %)**Example:**
	968	+)))
504	504
505		-== LED Indicator ==
	970	+* (((
	971	+(% _msthash="903324" _msttexthash="934973" %)
	972	+0xA201: Set external sensor type to E1
	973	+)))
	974	+* (((
	975	+(% _msthash="903325" _msttexthash="354770" %)
	976	+0xA209: Same as AT+EXT=9
	977	+)))
	978	+* (((
	979	+(% _msthash="903326" _msttexthash="639067" %)
	980	+0xA20702003c,Same as AT+SETCNT=60
	981	+)))
506	506
507		-The LHT65N has a triple color LED which for easy shows different stage.
	983	+== (% _msthash="1562483" _msttexthash="1445717" %)4.3 Enable/Disable uplink Temperature probe ID(%%) ==
508	508
509		-While pressing ACT button, the LED will work as per LED status with ACT button.
	985	+(% _msthash="315359" _msttexthash="2977572" %)
	986	+Feature: If PID is enabled, device will send the temperature probe ID on:
510	510
511		-In a normal working state:
	988	+* First Packet after OTAA Join
	989	+* Every 24 hours since the first packet.
512	512
513		-* For each uplink, the BLUE LED or RED LED will blink once.
514		-* BLUE LED when an external sensor is connected
515		-* RED LED when an external sensor is not connected
516		-* For each success downlink, the PURPLE LED will blink once
	991	+(% _msthash="315360" _msttexthash="658814" %)
	992	+PID is default set to disable (0)
517	517
518		-----
	994	+(% _msthash="315361" _msttexthash="137488" %)**AT Command:**
519	519
520		-== Installation ==
	996	+[[image:image-20220523150928-4.png||_mstalt="431821"]]
521	521
522		-[[image:image-20220516231650-1.png||height="632" width="620"]]
	998	+(% _msthash="315362" _msttexthash="298038" %)**Downlink Command:**
523	523
	1000	+* 0xA800  **~-~->** AT+PID=0
	1001	+* 0xA801     **~-~->** AT+PID=1
524	524
	1003	+== (% _msthash="266344" _msttexthash="242879" %)4.4 Set Password(%%) ==
525	525
	1005	+(% _msthash="315363" _msttexthash="1170728" %)
	1006	+Feature: Set device password, max 9 digits
526	526
527		-= Sensors & Accessories =
	1008	+(% _msthash="315364" _msttexthash="295009" %)**AT Command: AT+PWORD**
528	528
529		-== E3 Temperature Probe ==
	1010	+[[image:image-20220523151052-5.png||_mstalt="428623"]]
530	530
531		-[[image:image-20220515080154-4.png||height="182" width="161"]] [[image:image-20220515080330-5.png||height="201" width="195"]]
	1012	+(((
	1013	+(% _msthash="506261" _msttexthash="298038" %)**Downlink Command:**
	1014	+)))
532	532
	1016	+(((
	1017	+(% _msthash="506262" _msttexthash="974311" %)
	1018	+No downlink command for this feature.
	1019	+)))
533	533
534		-With Temperature sensor with 2 meters cable long
	1021	+== (% _msthash="306956" _msttexthash="281918" %)4.5 Quit AT Command(%%) ==
535	535
536		-* Resolution: 0.0625 °C
537		-* ±0.5°C accuracy from -10°C to +85°C
538		-* ±2°C accuracy from -55°C to +125°C
539		-* Operating Range: -40 ~~ 125 °C
540		-* -55°C to 125°C
541		-* Working voltage 2.35v ~~ 5v
542		-
	1023	+(% _msthash="315365" _msttexthash="4616456" %)
	1024	+Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
543	543
544		-= Battery & How to replace =
	1026	+(% _msthash="315366" _msttexthash="289120" %)**AT Command: AT+DISAT**
545	545
546		-== Battery Type ==
	1028	+[[image:image-20220523151132-6.png||_mstalt="428649"]]
547	547
	1030	+(% _msthash="315367" _msttexthash="298038" %)**Downlink Command:**
	1031	+
	1032	+(% _msthash="315368" _msttexthash="974311" %)
	1033	+No downlink command for this feature.
	1034	+
	1035	+== (% _msthash="362752" _msttexthash="334919" %)4.6 Set to sleep mode(%%) ==
	1036	+
	1037	+(% _msthash="315369" _msttexthash="779688" %)
	1038	+Feature: Set device to sleep mode
	1039	+
	1040	+(% _msthash="315370" _msttexthash="289783" %)**AT Command: AT+SLEEP**
	1041	+
	1042	+[[image:image-20220523151218-7.png||_mstalt="430703"]]
	1043	+
	1044	+(% _msthash="315371" _msttexthash="298038" %)**Downlink Command:**
	1045	+
	1046	+* There is no downlink command to set to Sleep mode.
	1047	+
	1048	+== (% _msthash="336557" _msttexthash="309712" %)4.7 Set system time(%%) ==
	1049	+
	1050	+(% _msthash="315372" _msttexthash="2565524" %)
	1051	+Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
	1052	+
	1053	+(% _msthash="315373" _msttexthash="137488" %)**AT Command:**
	1054	+
	1055	+[[image:image-20220523151253-8.png||_mstalt="430677"]]
	1056	+
	1057	+(% _msthash="315374" _msttexthash="298038" %)**Downlink Command:**
	1058	+
	1059	+(% _msthash="315375" _msttexthash="2898571" %)
	1060	+0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
	1061	+
	1062	+== (% _msthash="376779" _msttexthash="348712" %)4.8 Set Time Sync Mode(%%) ==
	1063	+
	1064	+(((
	1065	+(% _msthash="506263" _msttexthash="11748321" %)
	1066	+Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
	1067	+)))
	1068	+
	1069	+(((
	1070	+(% _msthash="506264" _msttexthash="6530264" %)
	1071	+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.
	1072	+)))
	1073	+
	1074	+(((
	1075	+(% _msthash="506265" _msttexthash="137488" %)**AT Command:**
	1076	+)))
	1077	+
	1078	+[[image:image-20220523151336-9.png||_mstalt="431717"]]
	1079	+
	1080	+(% _msthash="315376" _msttexthash="298038" %)**Downlink Command:**
	1081	+
	1082	+(% _msthash="315377" _msttexthash="479648" %)
	1083	+0x28 01 ~/~/ Same As AT+SYNCMOD=1
	1084	+
	1085	+(% _msthash="315378" _msttexthash="479076" %)
	1086	+0x28 00 ~/~/ Same As AT+SYNCMOD=0
	1087	+
	1088	+== (% _msthash="536432" _msttexthash="502528" %)4.9 Set Time Sync Interval(%%) ==
	1089	+
	1090	+(% _msthash="315379" _msttexthash="3065777" %)
	1091	+Feature: Define System time sync interval. SYNCTDC default value: 10 days.
	1092	+
	1093	+(% _msthash="315380" _msttexthash="137488" %)**AT Command:**
	1094	+
	1095	+[[image:image-20220523151411-10.png||_mstalt="449696"]]
	1096	+
	1097	+(% _msthash="315381" _msttexthash="298038" %)**Downlink Command:**
	1098	+
	1099	+(% _msthash="315382" _msttexthash="590044" %)
	1100	+0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
	1101	+
	1102	+== (% _msthash="927901" _msttexthash="882570" %)4.10 Print data entries base on page.(%%) ==
	1103	+
	1104	+(% _msthash="315383" _msttexthash="3233334" %)
	1105	+Feature: Print the sector data from start page to stop page (max is 416 pages).
	1106	+
	1107	+(% _msthash="315384" _msttexthash="264953" %)**AT Command: AT+PDTA**
	1108	+
	1109	+[[image:image-20220523151450-11.png||_mstalt="451035"]]
	1110	+
	1111	+(% _msthash="315385" _msttexthash="298038" %)**Downlink Command:**
	1112	+
	1113	+(% _msthash="315386" _msttexthash="799539" %)
	1114	+No downlink commands for feature
	1115	+
	1116	+== (% _msthash="788762" _msttexthash="747149" %)4.11 Print last few data entries.(%%) ==
	1117	+
	1118	+(% _msthash="315387" _msttexthash="1101009" %)
	1119	+Feature: Print the last few data entries
	1120	+
	1121	+(% _msthash="315388" _msttexthash="288522" %)**AT Command: AT+PLDTA**
	1122	+
	1123	+[[image:image-20220523151524-12.png||_mstalt="452101"]]
	1124	+
	1125	+(% _msthash="315389" _msttexthash="298038" %)**Downlink Command:**
	1126	+
	1127	+(% _msthash="315390" _msttexthash="799539" %)
	1128	+No downlink commands for feature
	1129	+
	1130	+== (% _msthash="437814" _msttexthash="408057" %)4.12 Clear Flash Record(%%) ==
	1131	+
	1132	+(% _msthash="315391" _msttexthash="1609075" %)
	1133	+Feature: Clear flash storage for data log feature.
	1134	+
	1135	+(% _msthash="315392" _msttexthash="311415" %)**AT Command: AT+CLRDTA**
	1136	+
	1137	+[[image:image-20220523151556-13.png||_mstalt="454129"]]
	1138	+
	1139	+(% _msthash="315393" _msttexthash="388193" %)**Downlink Command: 0xA3**
	1140	+
	1141	+* Example: 0xA301 ~/~/Same as AT+CLRDTA
	1142	+
	1143	+== (% _msthash="740532" _msttexthash="701363" %)4.13 Auto Send None-ACK messages(%%) ==
	1144	+
	1145	+(% _msthash="315394" _msttexthash="51837149" %)
	1146	+Feature: LHT65N will wait for ACK for each uplink, If LHT65N doesn't get ACK from the IoT server, it will consider the message doesn't arrive server and store it. LHT65N keeps sending messages in normal periodically. Once LHT65N gets ACK from a server, it will consider the network is ok and start to send the not-arrive message.
	1147	+
	1148	+
	1149	+(% _msthash="315395" _msttexthash="334256" %)**AT Command: AT+PNACKMD**
	1150	+
	1151	+(% _msthash="315396" _msttexthash="734682" %)
	1152	+The default factory setting is 0
	1153	+
	1154	+(% border="1" style="background-color:#ffffcc; color:green; width:450px" %)
	1155	+|=(% style="width: 171px;" %)(% _msthash="1231737" _msttexthash="251862" %)**Command Example**|=(% style="width: 219px;" %)(% _msthash="1231738" _msttexthash="116025" %)**Function**|=(% style="width: 119px;" %)(% _msthash="1231739" _msttexthash="116831" %)**Response**
	1156	+|(% _msthash="1231321" _msttexthash="130455" style="width:171px" %)AT+PNACKMD=1|(% _msthash="1231322" _msttexthash="377026" style="width:219px" %)Poll None-ACK message|(% _msthash="1231323" _msttexthash="14989" style="width:119px" %)OK
	1157	+
	1158	+(% _msthash="315397" _msttexthash="383981" %)**Downlink Command: 0x34**
	1159	+
	1160	+* Example: 0x3401 ~/~/Same as AT+PNACKMD=1
	1161	+
	1162	+= (% _msthash="568737" _msttexthash="502827" %)5. Battery & How to replace(%%) =
	1163	+
	1164	+== (% _msthash="265486" _msttexthash="242073" %)5.1 Battery Type(%%) ==
	1165	+
	1166	+(% _msthash="315398" _msttexthash="33754799" %)
548	548	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.
549	549
	1169	+(((
550	550	The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
551		-[[image:image-20220515075034-1.png||height="208" width="644"]]
	1171	+[[image:image-20220515075034-1.png||_mstalt="428961" height="208" width="644"]]
	1172	+)))
552	552
553		-
	1174	+(((
554	554	The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
555	555
	1177	+)))
556	556
557		-== Replace Battery ==
	1179	+== (% _msthash="353795" _msttexthash="326703" %)5.2 Replace Battery(%%) ==
558	558
	1181	+(% _msthash="315399" _msttexthash="11289278" %)
559	559	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.
560	560
561		-[[image:image-20220515075440-2.png||height="338" width="272"]][[image:image-20220515075625-3.png||height="193" width="257"]]
	1184	+[[image:image-20220515075440-2.png||_mstalt="429546" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" height="193" width="257"]]
562	562
	1186	+== (% _msthash="494650" _msttexthash="462241" %)5.3 Battery Life Analyze(%%) ==
563	563
564		-== Battery Life Analyze ==
565		-
	1188	+(((
	1189	+(% _msthash="506268" _msttexthash="35479028" %)
566	566	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:
567	567	https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf
	1192	+)))
568	568
	1194	+= (% _msthash="183170" _msttexthash="163566" %)6. Order Info(%%) =
569	569
570		-= Order Info =
	1196	+(((
	1197	+(% _msthash="506269" _msttexthash="432432" %)
	1198	+Part Number: (% style="color:#4f81bd" %)** LHT65N-XX-YY**
	1199	+)))
571	571
572		-Part Number: (% class="mark" %)**LHT65N-XX**
	1201	+(((
	1202	+(% _msthash="506270" _msttexthash="686946" %)
	1203	+(% style="color:#4f81bd" %)**XX **(%%): The default frequency band
	1204	+)))
573	573
574		-**XX**: The default frequency band
	1206	+* (((
	1207	+(% _msthash="903327" _msttexthash="393341" %)
	1208	+(% style="color:#4f81bd" %)** AS923**(%%): LoRaWAN AS923 band
	1209	+)))
	1210	+* (((
	1211	+(% _msthash="903328" _msttexthash="394576" %)
	1212	+(% style="color:#4f81bd" %)** AU915**(%%): LoRaWAN AU915 band
	1213	+)))
	1214	+* (((
	1215	+(% _msthash="903329" _msttexthash="393913" %)
	1216	+(% style="color:#4f81bd" %)** EU433**(%%): LoRaWAN EU433 band
	1217	+)))
	1218	+* (((
	1219	+(% _msthash="903330" _msttexthash="399087" %)
	1220	+(% style="color:#4f81bd" %)** EU868**(%%): LoRaWAN EU868 band
	1221	+)))
	1222	+* (((
	1223	+(% _msthash="903331" _msttexthash="395109" %)
	1224	+(% style="color:#4f81bd" %)** KR920**(%%): LoRaWAN KR920 band
	1225	+)))
	1226	+* (((
	1227	+(% _msthash="903332" _msttexthash="400842" %)
	1228	+(% style="color:#4f81bd" %)** US915**(%%): LoRaWAN US915 band
	1229	+)))
	1230	+* (((
	1231	+(% _msthash="903333" _msttexthash="396487" %)
	1232	+(% style="color:#4f81bd" %)** IN865**(%%): LoRaWAN IN865 band
	1233	+)))
	1234	+* (((
	1235	+(% _msthash="903334" _msttexthash="390923" %)
	1236	+(% style="color:#4f81bd" %)** CN470**(%%): LoRaWAN CN470 band
	1237	+)))
575	575
576		-* **AS923**: LoRaWAN AS923 band
577		-* **AU915**: LoRaWAN AU915 band
578		-* **EU433**: LoRaWAN EU433 band
579		-* **EU868**: LoRaWAN EU868 band
580		-* **KR920**: LoRaWAN KR920 band
581		-* **US915**: LoRaWAN US915 band
582		-* **IN865**: LoRaWAN IN865 band
583		-* **CN470**: LoRaWAN CN470 band
	1239	+(((
	1240	+(% _msthash="506271" _msttexthash="443495" %)
	1241	+(% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
	1242	+)))
584	584
585		-**YY**: Sensor Accessories
	1244	+* (((
	1245	+(% _msthash="903335" _msttexthash="720135" %)
	1246	+(% style="color:#4f81bd" %)**E3**(%%): External Temperature Probe
	1247	+)))
586	586
587		-* **E3**: External Temperature Probe
	1249	+= (% _msthash="233363" _msttexthash="211237" %)7. Packing Info(%%) =
588	588
589		-= Packing Info =
590		-
	1251	+(((
	1252	+(% _msthash="506272" _msttexthash="295386" %)
591	591	**Package Includes**:
	1254	+)))
592	592
593		-* LHT65N Temperature & Humidity Sensor x 1
594		-* Program cable x 1
595		-* Optional external sensor
	1256	+* (((
	1257	+(% _msthash="903336" _msttexthash="1033149" %)
	1258	+LHT65N Temperature & Humidity Sensor x 1
	1259	+)))
	1260	+* (((
	1261	+(% _msthash="903337" _msttexthash="242567" %)
	1262	+Program cable x 1
	1263	+)))
	1264	+* (((
	1265	+(% _msthash="903338" _msttexthash="544167" %)
	1266	+Optional external sensor
	1267	+)))
596	596
	1269	+(((
	1270	+(% _msthash="506273" _msttexthash="403858" %)
597	597	**Dimension and weight**:
	1272	+)))
598	598
599		-* Device Size:  13.5 x 7 x 3 cm
600		-* Device Weight: 105g
601		-* Package Size / pcs : 14.5 x 8 x 5 cm
602		-* Weight / pcs : 170g
	1274	+* (((
	1275	+(% _msthash="903339" _msttexthash="391807" %)
	1276	+Device Size:  13.5 x 7 x 3 cm
	1277	+)))
	1278	+* (((
	1279	+(% _msthash="903340" _msttexthash="285298" %)
	1280	+Device Weight: 105g
	1281	+)))
	1282	+* (((
	1283	+(% _msthash="903341" _msttexthash="562926" %)
	1284	+Package Size / pcs : 14.5 x 8 x 5 cm
	1285	+)))
	1286	+* (((
	1287	+(% _msthash="903342" _msttexthash="227084" %)
	1288	+Weight / pcs : 170g
	1289	+)))
603	603
604		-= FCC Warning =
	1291	+= (% _msthash="198744" _msttexthash="178776" %)8. FCC Warning(%%) =
605	605
	1293	+(((
	1294	+(% _msthash="506274" _msttexthash="6034353" %)
606	606	This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
	1296	+)))
607	607
608		-(1) This device may not cause harmful interference, and
	1298	+(((
	1299	+(% _msthash="506275" _msttexthash="44097638" %)
	1300	+(1) This device may not cause harmful interference；
	1301	+)))
609	609
610		-(2) this device must accept any interference received, including interference that may cause undesired operation
	1303	+(((
	1304	+(% _msthash="506276" _msttexthash="7559773" %)
	1305	+(2) this device must accept any interference received, including interference that may cause undesired operation.
	1306	+)))

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