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Author

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1		-XWiki.Edwin
	1	+XWiki.Xiaoling

Content

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1		-{{box cssClass="floatinginfobox" title="**Contents**"}}
	1	+(% style="text-align:center" %)
	2	+[[image:image-20220523115324-1.jpeg||height="500" width="500"]]
	3	+
	4	+
	5	+**LHT65N LoRaWAN Temperature & Humidity Sensor Manual**
	6	+
	7	+
	8	+
	9	+**Table of Contents：**
	10	+
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
	15	+= 1.Introduction =
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	+== 1.1 What is LHT65N Temperature & Humidity Sensor ==
11	11
	19	+(((
	20	+The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% style="color:#4f81bd" %)**built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% style="color:#4f81bd" %)**Temperature Sensor**(%%)**.**
	21	+)))
	22	+
	23	+(((
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.
	25	+)))
13	13
	27	+(((
14	14	LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
	29	+)))
15	15
	31	+(((
16	16	LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
	33	+)))
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.
	35	+(((
	36	+LHT65N supports (% style="color:#4f81bd" %)**Datalog Feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
	37	+)))
19	19
	39	+(((
20	20	*The actual battery life depends on how often to send data, please see the battery analyzer chapter.
	41	+)))
21	21
	43	+== 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
...	...	@@ -34,55 +34,91 @@
34	34	* Tri-color LED to indicate working status
35	35	* Datalog feature
36	36
37		-== Specification: ==
	57	+== 1.3 Specification ==
38	38
	59	+(((
39	39	**Built-in Temperature Sensor:**
	61	+)))
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
	63	+* (((
	64	+Resolution: 0.01 °C
	65	+)))
	66	+* (((
	67	+Accuracy Tolerance : Typ ±0.3 °C
	68	+)))
	69	+* (((
	70	+Long Term Drift: < 0.02 °C/yr
	71	+)))
	72	+* (((
	73	+Operating Range: -40 ~~ 85 °C
	74	+)))
45	45
	76	+(((
46	46	**Built-in Humidity Sensor:**
	78	+)))
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
	80	+* (((
	81	+Resolution: 0.04 %RH
	82	+)))
	83	+* (((
	84	+Accuracy Tolerance : Typ ±3 %RH
	85	+)))
	86	+* (((
	87	+Long Term Drift: < 0.02 °C/yr
	88	+)))
	89	+* (((
	90	+Operating Range: 0 ~~ 96 %RH
	91	+)))
52	52
	93	+(((
53	53	**External Temperature Sensor:**
	95	+)))
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
	97	+* (((
	98	+Resolution: 0.0625 °C
	99	+)))
	100	+* (((
	101	+±0.5°C accuracy from -10°C to +85°C
	102	+)))
	103	+* (((
	104	+±2°C accuracy from -55°C to +125°C
	105	+)))
	106	+* (((
	107	+Operating Range: -55 °C ~~ 125 °C
	108	+)))
59	59
60		-= Connect LHT65N to IoT Server =
	110	+= 2. Connect LHT65N to IoT Server =
61	61
62		-== How does LHT65N work? ==
	112	+== 2.1 How does LHT65N work? ==
63	63
	114	+(((
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.
	116	+)))
65	65
	118	+(((
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.
	120	+)))
67	67
	122	+== 2.2 How to Activate LHT65N? ==
68	68
69		-== How to Activate LHT65N? ==
70		-
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
	129	+(((
76	76	The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
	131	+)))
77	77
78	78	[[image:image-20220515123819-1.png||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.
	135	+(% border="1" style="background-color:#ffffcc; color:green; width:739px" %)
	136	+|**Behavior on ACT**|**Function**|(% style="width:424px" %)**Action**
	137	+|**Pressing ACT between 1s < time < 3s**|Test uplink status|(% style="width:424px" %)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.
	138	+|**Pressing ACT for more than 3s**|Active Device|(% style="width:424px" %)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.
	139	+|**Fast press ACT 5 times**|Deactivate Device|(% style="width:424px" %)red led will solid on for 5 seconds. This means LHT65N is in Deep Sleep Mode.
84	84
85		-== Example to join LoRaWAN network ==
	141	+== 2.3 Example to join LoRaWAN network ==
86	86
87	87	(% 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.
...	...	@@ -93,7 +93,7 @@
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 ===
	152	+=== 2.3.1 Step 1: Create Device n TTN ===
97	97
98	98	Create a device in TTN V3 with the OTAA keys from LHT65N.
99	99
...	...	@@ -107,10 +107,8 @@
107	107
108	108	[[image:image-20220522232916-3.png]]
109	109
110		-
111	111	[[image:image-20220522232932-4.png]]
112	112
113		-
114	114	[[image:image-20220522232954-5.png]]
115	115
116	116	Note: LHT65N use same payload as LHT65.
...	...	@@ -123,37 +123,65 @@
123	123	[[image:image-20220522233118-7.png]]
124	124
125	125
126		-=== Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
	180	+=== 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
127	127
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]]
	184	+[[image:image-20220522233300-8.png||height="219" width="722"]]
131	131
132	132
133		-== Uplink Payload: ==
	187	+== 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.
	189	+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.
	191	+After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.
138	138
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]]
	194	+(% border="1" style="background-color:#ffffcc; color:green; width:428px" %)
	195	+|(% style="width:106px" %)(((
	196	+**Size(bytes)**
	197	+)))|(% style="width:46px" %)(((
	198	+**2**
	199	+)))|(% style="width:104px" %)(((
	200	+**2**
	201	+)))|(% style="width:80px" %)(((
	202	+**2**
	203	+)))|(% style="width:51px" %)(((
	204	+**1**
	205	+)))|(% style="width:35px" %)(((
	206	+**4**
	207	+)))
	208	+|(% style="width:106px" %)(((
	209	+**Value**
	210	+)))|(% style="width:46px" %)(((
	211	+[[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]]
	212	+)))|(% style="width:104px" %)(((
	213	+(((
	214	+[[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]]
	215	+)))
144	144
145		-[[Temperature>>path:#SHT20_Temperature]]
146		-)))|(% style="width:103px" %)(((
147		-[[Built-in>>path:#SHT20_Humidity]]
	217	+(((
	218	+[[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]]
	219	+)))
	220	+)))|(% style="width:80px" %)(((
	221	+(((
	222	+[[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]]
	223	+)))
148	148
149		-[[Humidity>>path:#SHT20_Humidity]]
150		-)))|(% style="width:72px" %)[[Ext>>path:#Extension_Sensor]] #|(% style="width:89px" %)[[Ext value>>path:#Extension_sensor_value]]
	225	+(((
	226	+[[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]]
	227	+)))
	228	+)))|(% style="width:51px" %)(((
	229	+[[Ext>>path:#Extension_Sensor]] #
	230	+)))|(% style="width:35px" %)(((
	231	+[[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]]
	232	+)))
151	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	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.)
155	155
156		-=== Decoder in TTN V3 ===
	238	+=== 2.4.1 Decoder in TTN V3 ===
157	157
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
...	...	@@ -161,28 +161,47 @@
161	161
162	162	[[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]
163	163
164		-[[image:image-20220522234118-10.png]]
	246	+[[image:image-20220522234118-10.png||height="353" width="729"]]
165	165
	248	+=== 2.4.2 BAT-Battery Info ===
166	166
167		-=== BAT-Battery Info ===
168		-
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" %)(((
	252	+(% border="1" style="background-color:#ffffcc; color:green; width:502px" %)
	253	+|(% style="width:75px" %)(((
	254	+Bit(bit)
	255	+)))|(% style="width:259px" %)(((
	256	+[15:14]
	257	+)))|(% style="width:164px" %)(((
	258	+[13:0]
	259	+)))
	260	+|(% style="width:75px" %)(((
	261	+Value
	262	+)))|(% style="width:259px" %)(((
	263	+(((
174	174	BAT Status
	265	+)))
175	175
	267	+(((
176	176	00(b): Ultra Low ( BAT <= 2.50v)
	269	+)))
177	177
	271	+(((
178	178	01(b): Low  (2.50v <=BAT <= 2.55v)
	273	+)))
179	179
	275	+(((
180	180	10(b): OK   (2.55v <= BAT <=2.65v)
	277	+)))
181	181
	279	+(((
182	182	11(b): Good   (BAT >= 2.65v)
183		-)))|(% style="width:214px" %)Actually BAT voltage
	281	+)))
	282	+)))|(% style="width:164px" %)(((
	283	+Actually BAT voltage
	284	+)))
184	184
185		-[[image:image-20220522235639-1.png]]
	286	+[[image:image-20220522235639-1.png||height="139" width="727"]]
186	186
187	187	Check the battery voltage for LHT65N.
188	188
...	...	@@ -189,9 +189,9 @@
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 ===
	293	+=== 2.4.3 Built-in Temperature ===
193	193
194		-[[image:image-20220522235639-2.png]]
	295	+[[image:image-20220522235639-2.png||height="138" width="722"]]
195	195
196	196	* Temperature:  0x0ABB/100=27.47℃
197	197
...	...	@@ -199,72 +199,69 @@
199	199
200	200	* Temperature:  (0xF5C6-65536)/100=-26.18℃
201	201
202		-=== Built-in Humidity ===
	303	+=== 2.4.4 Built-in Humidity ===
203	203
204		-[[image:image-20220522235639-4.png]]
	305	+[[image:image-20220522235639-4.png||height="138" width="722"]]
205	205
206	206	* Humidity:    0x025C/10=60.4%
207	207
208		-=== Ext # ===
	309	+=== 2.4.5 Ext # ===
209	209
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
	313	+(% border="1" style="background-color:#ffffcc; color:green; width:473px" %)
	314	+|(% style="width:139px" %)**EXT # Value**|(% style="width:331px" %)**External Sensor Type**
	315	+|(% style="width:139px" %)0x01|(% style="width:331px" %)Sensor E3, Temperature Sensor
	316	+|(% style="width:139px" %)0x09|(% style="width:331px" %)Sensor E3, Temperature Sensor, Datalog Mod
216	216
217		-=== Ext value ===
	318	+=== 2.4.6 Ext value ===
218	218
219		-==== Ext~=1, E3 Temperature Sensor ====
	320	+==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
220	220
221	221	[[image:image-20220522235639-5.png]]
222	222
223		-
224	224	* DS18B20 temp=0x0ADD/100=27.81℃
225	225
226	226	The last 2 bytes of data are meaningless
227	227
228		-
229		-
230	230	[[image:image-20220522235639-6.png]]
231	231
232	232	* External temperature= (0xF54F-65536)/100=-27.37℃
233	233
	332	+(((
234	234	The last 2 bytes of data are meaningless
	334	+)))
235	235
236		-
	336	+(((
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℃
	338	+)))
238	238
239	239
240		-==== Ext~=9, E3 sensor with Unix Timestamp ====
	341	+==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
241	241
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
	345	+(% border="1" style="background-color:#ffffcc; color:green; width:541px" %)
	346	+|(% style="width:96px" %)**Size(bytes)**|(% style="width:71px" %)**2**|(% style="width:69px" %)**2**|(% style="width:88px" %)**2**|(% style="width:69px" %)**1**|(% style="width:85px" %)**4**
	347	+|(% style="width:96px" %)**Value**|(% style="width:71px" %)[[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]]|(% style="width:69px" %)(((
	348	+[[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]]
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]]
	350	+[[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]]
	351	+)))|(% style="width:88px" %)(((
	352	+BAT Status &
249	249
250		-[[Temperature>>path:#SHT20_Temperature]]
251		-)))|(% style="width:106px" %)(((
252		-[[BAT Status &>>path:#BAT_Humidity]]
	354	+[[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/#H2.4.4Built-inHumidity]]
253	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]]
	356	+[[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]]
	357	+)))|(% style="width:69px" %)Status & Ext|(% style="width:85px" %)(((
	358	+[[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]]
261	261	)))
262	262
263		-* **Battery status & **[[(% class="wikiinternallink wikiinternallink wikiinternallink" %)**Built-in Humidity**>>path:#SHT20_Humidity]]
	361	+* **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" %)(((
	363	+(% border="1" style="background-color:#ffffcc; color:green; width:469px" %)
	364	+|(% style="width:65px" %)Bit(bit)|(% style="width:267px" %)[15:14]|(% style="width:134px" %)[11:0]
	365	+|(% style="width:65px" %)Value|(% style="width:267px" %)(((
268	268	BAT Status
269	269
270	270	00(b): Ultra Low ( BAT <= 2.50v)
...	...	@@ -274,8 +274,8 @@
274	274	10(b): OK   (2.55v <= BAT <=2.65v)
275	275
276	276	11(b): Good   (BAT >= 2.65v)
277		-)))|(% style="width:136px" %)(((
278		-[[Built-in Humidity>>path:#SHT20_Humidity]]
	375	+)))|(% style="width:134px" %)(((
	376	+[[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]]
279	279
280	280
281	281	)))
...	...	@@ -282,12 +282,10 @@
282	282
283	283	* **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:
289		-
290		-0b(1001)
	383	+(% border="1" style="background-color:#ffffcc; color:green; width:587px" %)
	384	+|(% style="width:109px" %)**Bits**|(% style="width:105px" %)**7**|(% style="width:105px" %)**6**|(% style="width:82px" %)**5**|(% style="width:84px" %)**4**|(% style="width:97px" %)**[3:0]**
	385	+|(% style="width:109px" %)**Status & Ext**|(% style="width:105px" %)Not Defined|(% style="width:105px" %)Poll Message Flag|(% style="width:82px" %)Sync time OK|(% style="width:84px" %)Unix Time Request|(% style="width:97px" %)(((
	386	+Ext:0b(1001)
291	291	)))
292	292
293	293	* Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
...	...	@@ -294,17 +294,21 @@
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 ==
	393	+== 2.5 Show data on Datacake ==
298	298
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		-
	397	+(((
302	302	**Step 1**: Be sure that your device is programmed and properly connected to the LoRaWAN network.
	399	+)))
303	303
	401	+(((
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.
	403	+)))
305	305
306		-
	405	+(((
307	307	Add Datacake:
	407	+)))
308	308
309	309	[[image:image-20220523000825-7.png||height="262" width="583"]]
310	310
...	...	@@ -313,21 +313,17 @@
313	313
314	314	[[image:image-20220523000825-8.png||height="453" width="406"]]
315	315
316		-
317	317	In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
318	318
319	319	[[image:image-20220523000825-9.png||height="366" width="392"]]
320	320
	420	+[[image:image-20220523000825-10.png||height="413" width="728"]]
321	321
	422	+== 2.6 Datalog Feature ==
322	322
323		-[[image:image-20220523000825-10.png||height="432" width="762"]]
324		-
325		-
326		-== Datalog Feature ==
327		-
328	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.
329	329
330		-=== Unix TimeStamp ===
	426	+=== 2.6.1 Unix TimeStamp ===
331	331
332	332	LHT65N uses Unix TimeStamp format based on
333	333
...	...	@@ -334,71 +334,95 @@
334	334	[[image:image-20220523001219-11.png||height="97" width="627"]]
335	335
336	336
	433	+(((
337	337	User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
	435	+)))
338	338
	437	+(((
339	339	Below is the converter example
	439	+)))
340	340
341		-[[image:image-20220523001219-12.png||height="353" width="853"]]
	441	+[[image:image-20220523001219-12.png||height="298" width="720"]]
342	342
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
	445	+=== 2.6.2 Set Device Time ===
345	345
346		-=== Set Device Time ===
347		-
	447	+(((
348	348	There are two ways to set device’s time:
	449	+)))
349	349
	451	+(((
350	350	**~1. Through LoRaWAN MAC Command (Default settings)**
	453	+)))
351	351
	455	+(((
352	352	User need to set SYNCMOD=1 to enable sync time via MAC command.
	457	+)))
353	353
	459	+(((
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).
	461	+)))
355	355
	463	+(((
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.
	465	+)))
357	357
	467	+(((
	468	+
	469	+)))
358	358
	471	+(((
359	359	**2. Manually Set Time**
	473	+)))
360	360
	475	+(((
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.
	477	+)))
362	362
	479	+=== 2.6.3 Poll sensor value ===
363	363
364		-=== Poll sensor value ===
365		-
366	366	User can poll sensor value based on timestamps from the server. Below is the downlink command.
367	367
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
	484	+(% border="1" style="background-color:#ffffcc; color:green; width:427px" %)
	485	+|(% style="width:61px" %)1byte|(% style="width:126px" %)4bytes|(% style="width:120px" %)4bytes|(% style="width:115px" %)1byte
	486	+|(% style="width:61px" %)31|(% style="width:126px" %)Timestamp start|(% style="width:120px" %)Timestamp end|(% style="width:115px" %)Uplink Interval
372	372
	488	+(((
373	373	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.
	490	+)))
374	374
	492	+(((
	493	+For example, downlink command **31 5FC5F350 5FC6 0160 05**
	494	+)))
375	375
376		-For example, downlink command 31 5FC5F350 5FC6 0160 05
377		-
	496	+(((
378	378	Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
	498	+)))
379	379
	500	+(((
380	380	Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
	502	+)))
381	381
382	382
383		-=== Datalog Uplink payload ===
	505	+=== 2.6.4 Datalog Uplink payload ===
384	384
385	385	The Datalog poll reply uplink will use below payload format.
386	386
387		-
	509	+(((
388	388	Retrieval data payload
	511	+)))
389	389
390		-|**Size(bytes)**|**2**|**2**|**2**|**1**|**4**
391		-|**Value**|[[External sensor data>>path:#Extension_sensor_value]]|(((
392		-[[Built-In>>path:#SHT20_Temperature]]
	513	+(% border="1" style="background-color:#ffffcc; color:green; width:615px" %)
	514	+|(% style="width:94px" %)**Size(bytes)**|(% style="width:106px" %)**2**|(% style="width:132px" %)**2**|(% style="width:62px" %)**2**|(% style="width:98px" %)**1**|(% style="width:83px" %)**4**
	515	+|(% style="width:94px" %)**Value**|(% style="width:106px" %)[[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]]|(% style="width:132px" %)(((
	516	+[[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]]
	517	+)))|(% style="width:62px" %)(((
	518	+[[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]][[ 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]]
	519	+)))|(% style="width:98px" %)[[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]]|(% style="width:83px" %)(((
	520	+[[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]]
393	393
394		-[[Temperature>>path:#SHT20_Temperature]]
395		-)))|(((
396		-[[Built-in>>path:#SHT20_Humidity]]
397		-
398		-[[Humidity>>path:#SHT20_Humidity]]
399		-)))|[[Poll message flag & Ext>>path:#Poll_EXT]]|(((
400		-[[Unix Time Stamp>>path:#Unix_Time_Stamp]]
401		-
402	402
403	403	)))
404	404
...	...	@@ -405,8 +405,9 @@
405	405	Poll message flag & Ext
406	406
407	407
408		-|**Bits**|**7**|**6**|**5**|**4**|**[3:0]**
409		-|**Status & Ext**|Not Defined|Poll Message Flag|Sync time OK|Unix Time Request|(((
	528	+(% border="1" style="background-color:#ffffcc; color:green; width:542px" %)
	529	+|(% style="width:81px" %)**Bits**|(% style="width:100px" %)**7**|(% style="width:114px" %)**6**|(% style="width:85px" %)**5**|(% style="width:85px" %)**4**|(% style="width:77px" %)**[3:0]**
	530	+|(% style="width:81px" %)**Status & Ext**|(% style="width:100px" %)Not Defined|(% style="width:114px" %)Poll Message Flag|(% style="width:85px" %)Sync time OK|(% style="width:85px" %)Unix Time Request|(% style="width:77px" %)(((
410	410	Ext:
411	411
412	412	0b(1001)
...	...	@@ -464,7 +464,7 @@
464	464
465	465	LHT65N will uplink this payload.
466	466
467		-[[image:image-20220523001219-13.png]]
	588	+[[image:image-20220523001219-13.png||height="421" width="727"]]
468	468
469	469	7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
470	470
...	...	@@ -483,7 +483,7 @@
483	483	Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
484	484
485	485
486		-== Alarm Mode ==
	607	+== 2.7 Alarm Mode ==
487	487
488	488	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.
489	489
...	...	@@ -499,7 +499,7 @@
499	499
500	500
501	501
502		-== LED Indicator ==
	623	+== 2.8 LED Indicator ==
503	503
504	504	The LHT65N has a triple color LED which for easy shows different stage.
505	505
...	...	@@ -514,17 +514,14 @@
514	514
515	515	----
516	516
517		-== Installation ==
	638	+== 2.9 Installation ==
518	518
519	519	[[image:image-20220516231650-1.png||height="436" width="428"]]
520	520
	642	+= 3. Sensors & Accessories =
521	521
	644	+== 3.1 E3 Temperature Probe ==
522	522
523		-
524		-= Sensors & Accessories =
525		-
526		-== E3 Temperature Probe ==
527		-
528	528	[[image:image-20220515080154-4.png||height="182" width="161"]] [[image:image-20220515080330-5.png||height="201" width="195"]]
529	529
530	530
...	...	@@ -537,7 +537,7 @@
537	537	* -55°C to 125°C
538	538	* Working voltage 2.35v ~~ 5v
539	539
540		-= Configure LHT65N via AT Command or LoRaWAN Downlink =
	658	+= 4. Configure LHT65N via AT Command or LoRaWAN Downlink =
541	541
542	542	Use can configure LHT65N via AT Command or LoRaWAN Downlink.
543	543
...	...	@@ -546,7 +546,6 @@
546	546
547	547	[[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]]
548	548
549		-
550	550	There are two kinds of commands to configure LHT65N, they are:
551	551
552	552	* **General Commands**.
...	...	@@ -560,19 +560,17 @@
560	560
561	561	[[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_Downlink_Command>>url:http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command]]
562	562
563		-
564		-
565	565	* **Commands special design for LHT65N**
566	566
567	567	These commands are only valid for LHT65N, as below:
568	568
	684	+== 4.1 Set Transmit Interval Time ==
569	569
570		-== Set Transmit Interval Time ==
571		-
572	572	Feature: Change LoRaWAN End Node Transmit Interval.
573	573
574	574	**AT Command: AT+TDC**
575	575
	690	+(% border="1" %)
576	576	|**Command Example**|**Function**|**Response**
577	577	|AT+TDC?|Show current transmit Interval|(((
578	578	30000
...	...	@@ -587,7 +587,6 @@
587	587	Set transmit interval to 60000ms = 60 seconds
588	588	)))
589	589
590		-
591	591	**Downlink Command: 0x01**
592	592
593	593	Format: Command Code (0x01) followed by 3 bytes time value.
...	...	@@ -597,13 +597,13 @@
597	597	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
598	598	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
599	599
	714	+== 4.2 Set External Sensor Mode ==
600	600
601		-== Set External Sensor Mode ==
602		-
603	603	Feature: Change External Sensor Mode.
604	604
605	605	**AT Command: AT+EXT**
606	606
	720	+(% border="1" %)
607	607	|**Command Example**|**Function**|**Response**
608	608	|AT+EXT?|Get current external sensor mode|(((
609	609	1
...	...	@@ -615,7 +615,6 @@
615	615	|AT+EXT=1|(% colspan="2" %)Set external sensor mode to 1
616	616	|AT+EXT=9|(% colspan="2" %)Set to external DS18B20 with timestamp
617	617
618		-
619	619	**Downlink Command: 0xA2**
620	620
621	621	Total bytes: 2 ~~ 5 bytes
...	...	@@ -626,9 +626,8 @@
626	626	* 0xA209: Same as AT+EXT=9
627	627	* 0xA20702003c,Same as AT+SETCNT=60
628	628
	742	+== 4.3 Enable/Disable uplink Temperature probe ID ==
629	629
630		-== Enable/Disable uplink Temperature probe ID ==
631		-
632	632	Feature: If PID is enabled, device will send the temperature probe ID on:
633	633
634	634	* First Packet after OTAA Join
...	...	@@ -639,23 +639,22 @@
639	639
640	640	**AT Command:**
641	641
	754	+(% border="1" %)
642	642	|**Command Example**|**Function**|**Response**
643	643	|AT+PID=1|Enable PID uplink|OK
644	644
645		-
646	646	**Downlink Command:**
647	647
648	648	* 0xA800     à AT+PID=0
649	649	* 0xA801     à AT+PID=1
650	650
	763	+== 4.4 Set Password ==
651	651
652		-
653		-== Set Password ==
654		-
655	655	Feature: Set device password, max 9 digits
656	656
657	657	**AT Command: AT+PWORD**
658	658
	769	+(% border="1" %)
659	659	|**Command Example**|**Function**|**Response**
660	660	|AT+PWORD=?|Show password|(((
661	661	123456
...	...	@@ -665,33 +665,32 @@
665	665	)))
666	666	|AT+PWORD=999999|Set password|OK
667	667
668		-
669	669	**Downlink Command:**
670	670
671	671	No downlink command for this feature.
672	672
	783	+== 4.5 Quit AT Command ==
673	673
674		-== Quit AT Command ==
675		-
676	676	Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
677	677
678	678	**AT Command: AT+DISAT**
679	679
	789	+(% border="1" %)
680	680	|**Command Example**|**Function**|**Response**
681	681	|AT+DISAT|Quit AT Commands mode|OK
682	682
683		-
684	684	**Downlink Command:**
685	685
686	686	No downlink command for this feature.
687	687
688	688
689		-== Set to sleep mode ==
	798	+== 4.6 Set to sleep mode ==
690	690
691	691	Feature: Set device to sleep mode
692	692
693	693	**AT Command: AT+SLEEP**
694	694
	804	+(% border="1" %)
695	695	| | |
696	696	|**Command Example**|**Function**|**Response**
697	697	|AT+SLEEP|Set to sleep mode|(((
...	...	@@ -700,19 +700,17 @@
700	700	OK
701	701	)))
702	702
703		-
704	704	**Downlink Command:**
705	705
706	706	* There is no downlink command to set to Sleep mode.
707	707
	817	+== 4.7 Set system time ==
708	708
709		-
710		-== Set system time ==
711		-
712	712	Feature: Set system time, unix format. [[See here for format detail.>>path:#TimeStamp]]
713	713
714	714	**AT Command:**
715	715
	823	+(% border="1" %)
716	716	|**Command Example**|**Function**
717	717	|AT+TIMESTAMP=1611104352|(((
718	718	OK
...	...	@@ -720,17 +720,14 @@
720	720	Set System time to 2021-01-20 00:59:12
721	721	)))
722	722
723		-
724	724	**Downlink Command:**
725	725
726	726	0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
727	727
	835	+== 4.8 Set Time Sync Mode ==
728	728
729		-== Set Time Sync Mode ==
730		-
731	731	Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
732	732
733		-
734	734	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.
735	735
736	736
...	...	@@ -739,7 +739,6 @@
739	739	|**Command Example**|**Function**
740	740	|AT+SYNCMOD=1|Enable Sync system time via LoRaWAN MAC Command (DeviceTimeReq)
741	741
742		-
743	743	**Downlink Command:**
744	744
745	745	0x28 01 ~/~/ Same As AT+SYNCMOD=1
...	...	@@ -746,28 +746,27 @@
746	746
747	747	0x28 00 ~/~/ Same As AT+SYNCMOD=0
748	748
	853	+== 4.9 Set Time Sync Interval ==
749	749
750		-== Set Time Sync Interval ==
751		-
752	752	Feature: Define System time sync interval. SYNCTDC default value: 10 days.
753	753
754	754	**AT Command:**
755	755
	859	+(% border="1" %)
756	756	|**Command Example**|**Function**
757	757	|AT+SYNCTDC=0x0A|Set SYNCTDC to 10 (0x0A), so the sync time is 10 days.
758	758
759		-
760	760	**Downlink Command:**
761	761
762	762	0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
763	763
	867	+== 4.10 Print data entries base on page. ==
764	764
765		-== Print data entries base on page. ==
766		-
767	767	Feature: Print the sector data from start page to stop page (max is 416 pages).
768	768
769	769	**AT Command: AT+PDTA**
770	770
	873	+(% border="1" %)
771	771	|**Command Example**|**Response**
772	772	|(((
773	773	AT+PDTA=1,3
...	...	@@ -812,19 +812,17 @@
812	812	OK
813	813	)))
814	814
815		-
816	816	**Downlink Command:**
817	817
818	818	No downlink commands for feature
819	819
	922	+== 4.11 Print last few data entries. ==
820	820
821		-
822		-== Print last few data entries. ==
823		-
824	824	Feature: Print the last few data entries
825	825
826	826	**AT Command: AT+PLDTA**
827	827
	928	+(% border="1" %)
828	828	|**Command Example**|**Response**
829	829	|(((
830	830	AT+PLDTA=5
...	...	@@ -850,19 +850,17 @@
850	850	OK
851	851	)))
852	852
853		-
854	854	**Downlink Command:**
855	855
856	856	No downlink commands for feature
857	857
	958	+== 4.12 Clear Flash Record ==
858	858
859		-
860		-== Clear Flash Record ==
861		-
862	862	Feature: Clear flash storage for data log feature.
863	863
864	864	**AT Command: AT+CLRDTA**
865	865
	964	+(% border="1" %)
866	866	|**Command Example**|**Function**|**Response**
867	867	|AT+CLRDTA|Clear date record|(((
868	868	Clear all stored sensor data…
...	...	@@ -870,42 +870,35 @@
870	870	OK
871	871	)))
872	872
873		-
874	874	**Downlink Command: 0xA3**
875	875
876	876	* Example: 0xA301 ~/~/Same as AT+CLRDTA
877	877
	976	+= 5. Battery & How to replace =
878	878
	978	+== 5.1 Battery Type ==
879	879
880		-
881		-= Battery & How to replace =
882		-
883		-== Battery Type ==
884		-
885	885	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.
886	886
887	887	The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
888	888	[[image:image-20220515075034-1.png||height="208" width="644"]]
889	889
890		-
891	891	The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
892	892
893	893
894		-== Replace Battery ==
	988	+== 5.2 Replace Battery ==
895	895
896	896	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.
897	897
898	898	[[image:image-20220515075440-2.png||height="338" width="272"]][[image:image-20220515075625-3.png||height="193" width="257"]]
899	899
	994	+== 5.3 Battery Life Analyze ==
900	900
901		-== Battery Life Analyze ==
902		-
903	903	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:
904	904	https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf
905	905
	999	+= 6. Order Info =
906	906
907		-= Order Info =
908		-
909	909	Part Number: (% class="mark" %)**LHT65N-XX**
910	910
911	911	**XX**: The default frequency band
...	...	@@ -923,7 +923,7 @@
923	923
924	924	* **E3**: External Temperature Probe
925	925
926		-= Packing Info =
	1018	+= 7. Packing Info =
927	927
928	928	**Package Includes**:
929	929
...	...	@@ -938,10 +938,10 @@
938	938	* Package Size / pcs : 14.5 x 8 x 5 cm
939	939	* Weight / pcs : 170g
940	940
941		-= FCC Warning =
	1033	+= 8. FCC Warning =
942	942
943	943	This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
944	944
945		-(1) This device may not cause harmful interference, and
	1037	+(1) This device may not cause harmful interference；
946	946
947		-(2) this device must accept any interference received, including interference that may cause undesired operation
	1039	+(2) this device must accept any interference received, including interference that may cause undesired operation.

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