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1		-(% style="text-align:center" %)
2		-[[image:image-20220523115324-1.jpeg||height="317" width="317"]]
3		-
4		-
5		-**LHT65N LoRaWAN Temperature & Humidity Sensor Manual**
6		-
7		-
8		-
9		-
10		-**Table of Contents：**
11		-
	1	+{{box cssClass="floatinginfobox" title="**Contents**"}}
12	12	{{toc/}}
	3	+{{/box}}
13	13
	5	+(% class="wikigeneratedid" %)
	6	+= =
14	14
	8	+(% class="wikigeneratedid" %)
	9	+= 1.Introduction =
15	15
	11	+== 1.1 Overview ==
16	16
17		-= 1. Introduction =
	13	+[[image:LHT65N_10.png||alt="LHT65_Image" height="265" width="265"]]
18	18
19		-== 1.1 What is LHT65N Temperature & Humidity Sensor ==
20	20
21		-(((
22		-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**(%%)**.**
23		-)))
	16	+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**(%%)**.**
24	24
25		-(((
26	26	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.
27		-)))
28	28
29		-(((
30	30	LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
31		-)))
32	32
33		-(((
34	34	LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
35		-)))
36	36
37		-(((
38		-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.
39		-)))
	24	+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.
40	40
41		-(((
42	42	*The actual battery life depends on how often to send data, please see the battery analyzer chapter.
43		-)))
44	44
45		-== 1.2 Features ==
46	46
	29	+== Features: ==
	30	+
47	47	* Wall mountable
48	48	* LoRaWAN v1.0.3 Class A protocol
49	49	* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
...	...	@@ -56,87 +56,55 @@
56	56	* Tri-color LED to indicate working status
57	57	* Datalog feature
58	58
59		-== 1.3 Specification ==
	43	+== Specification: ==
60	60
61		-(((
62	62	**Built-in Temperature Sensor:**
63		-)))
64	64
65		-* (((
66		-Resolution: 0.01 °C
67		-)))
68		-* (((
69		-Accuracy Tolerance : Typ ±0.3 °C
70		-)))
71		-* (((
72		-Long Term Drift: < 0.02 °C/yr
73		-)))
74		-* (((
75		-Operating Range: -40 ~~ 85 °C
76		-)))
	47	+* Resolution: 0.01 °C
	48	+* Accuracy Tolerance : Typ ±0.3 °C
	49	+* Long Term Drift: < 0.02 °C/yr
	50	+* Operating Range: -40 ~~ 85 °C
77	77
78		-(((
79	79	**Built-in Humidity Sensor:**
80		-)))
81	81
82		-* (((
83		-Resolution: 0.04 %RH
84		-)))
85		-* (((
86		-Accuracy Tolerance : Typ ±3 %RH
87		-)))
88		-* (((
89		-Long Term Drift: < 0.02 °C/yr
90		-)))
91		-* (((
92		-Operating Range: 0 ~~ 96 %RH
93		-)))
	54	+* Resolution: 0.04 %RH
	55	+* Accuracy Tolerance : Typ ±3 %RH
	56	+* Long Term Drift: < 0.02 °C/yr
	57	+* Operating Range: 0 ~~ 96 %RH
94	94
95		-(((
96	96	**External Temperature Sensor:**
97		-)))
98	98
99		-* (((
100		-Resolution: 0.0625 °C
101		-)))
102		-* (((
103		-±0.5°C accuracy from -10°C to +85°C
104		-)))
105		-* (((
106		-±2°C accuracy from -55°C to +125°C
107		-)))
108		-* (((
109		-Operating Range: -55 °C ~~ 125 °C
110		-)))
	61	+* Resolution: 0.0625 °C
	62	+* ±0.5°C accuracy from -10°C to +85°C
	63	+* ±2°C accuracy from -55°C to +125°C
	64	+* Operating Range: -55 °C ~~ 125 °C
111	111
112		-= 2. Connect LHT65N to IoT Server =
	66	+= Connect LHT65N to IoT Server =
113	113
114		-== 2.1 How does LHT65N work? ==
	68	+== How does LHT65N work? ==
115	115
116		-(((
117	117	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.
118		-)))
119	119
120		-(((
121	121	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.
122		-)))
123	123
124		-== 2.2 How to Activate LHT65N? ==
125	125
	75	+== How to Activate LHT65N? ==
	76	+
126	126	The LHT65N has two working modes:
127	127
128	128	* **Deep Sleep Mode**: LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
129	129	* **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.
130	130
131		-(((
132	132	The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
133		-)))
134	134
135	135	[[image:image-20220515123819-1.png||height="379" width="317"]]
136	136
137		-[[image:image-20220525110604-2.png]]
	86	+|**Behavior on ACT**|**Function**|**Action**
	87	+|**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.
	88	+|**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.
	89	+|**Fast press ACT 5 times**|Deactivate Device|red led will solid on for 5 seconds. This means LHT65N is in Deep Sleep Mode.
138	138
139		-== 2.3 Example to join LoRaWAN network ==
	91	+== Example to join LoRaWAN network ==
140	140
141	141	(% class="wikigeneratedid" %)
142	142	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.
...	...	@@ -147,7 +147,7 @@
147	147	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:
148	148
149	149
150		-=== 2.3.1 Step 1: Create Device n TTN ===
	102	+=== **Step 1**: Create Device n TTN ===
151	151
152	152	Create a device in TTN V3 with the OTAA keys from LHT65N.
153	153
...	...	@@ -161,8 +161,10 @@
161	161
162	162	[[image:image-20220522232916-3.png]]
163	163
	116	+
164	164	[[image:image-20220522232932-4.png]]
165	165
	119	+
166	166	[[image:image-20220522232954-5.png]]
167	167
168	168	Note: LHT65N use same payload as LHT65.
...	...	@@ -175,59 +175,37 @@
175	175	[[image:image-20220522233118-7.png]]
176	176
177	177
178		-=== 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
	132	+=== Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
179	179
180	180	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.
181	181
182		-[[image:image-20220522233300-8.png||height="219" width="722"]]
	136	+[[image:image-20220522233300-8.png]]
183	183
184	184
185		-== 2.4 Uplink Payload ==
	139	+== Uplink Payload: ==
186	186
187		-The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
	141	+The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and(% class="mark" %) every 20 minutes(%%) send one uplink by default.
188	188
189		-After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.
	143	+After each uplink, the (% class="mark" %)BLUE LED(%%) will blink once.
190	190
191		-(% border="1" style="background-color:#ffffcc; color:green; width:426px" %)
192		-|(% style="width:97px" %)(((
193		-**Size(bytes)**
194		-)))|(% style="width:39px" %)(((
195		-**2**
196		-)))|(% style="width:100px" %)(((
197		-**2**
198		-)))|(% style="width:77px" %)(((
199		-**2**
200		-)))|(% style="width:47px" %)(((
201		-**1**
202		-)))|(% style="width:51px" %)(((
203		-**4**
204		-)))
205		-|(% style="width:97px" %)(((
206		-**Value**
207		-)))|(% style="width:39px" %)(((
208		-[[BAT>>||anchor="H2.4.2BAT-BatteryInfo"]]
209		-)))|(% style="width:100px" %)(((
210		-(((
211		-[[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]
212		-)))
213		-)))|(% style="width:77px" %)(((
214		-(((
215		-[[Built-in>>||anchor="H2.4.4Built-inHumidity"]]
216		-)))
217		-(((
218		-[[Humidity>>||anchor="H2.4.4Built-inHumidity"]]
219		-)))
220		-)))|(% style="width:47px" %)(((
221		-[[Ext>>||anchor="H2.4.5Ext23"]] #
222		-)))|(% style="width:51px" %)(((
223		-[[Ext value>>||anchor="H2.4.6Extvalue"]]
224		-)))
225	225
	146	+(% style="width:572px" %)
	147	+|(% 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**
	148	+|(% style="width:106px" %)**Value**|(% style="width:71px" %)[[BAT>>path:#Battery]]|(% style="width:128px" %)(((
	149	+[[Built-In>>path:#SHT20_Temperature]]
	150	+
	151	+[[Temperature>>path:#SHT20_Temperature]]
	152	+)))|(% style="width:103px" %)(((
	153	+[[Built-in>>path:#SHT20_Humidity]]
	154	+
	155	+[[Humidity>>path:#SHT20_Humidity]]
	156	+)))|(% style="width:72px" %)[[Ext>>path:#Extension_Sensor]] #|(% style="width:89px" %)[[Ext value>>path:#Extension_sensor_value]]
	157	+
226	226	* The First 6 bytes: has fix meanings for every LHT65N.
227	227	* The 7th byte (EXT #): defines the external sensor model.
228	228	* 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.)
229	229
230		-=== 2.4.1 Decoder in TTN V3 ===
	162	+=== Decoder in TTN V3 ===
231	231
232	232	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.
233	233
...	...	@@ -235,24 +235,37 @@
235	235
236	236	[[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]
237	237
238		-[[image:image-20220522234118-10.png||height="353" width="729"]]
	170	+[[image:image-20220522234118-10.png]]
239	239
240		-=== 2.4.2 BAT-Battery Info ===
241	241
	173	+=== BAT-Battery Info ===
	174	+
242	242	These two bytes of BAT include the battery state and the actually voltage
243	243
244		-[[image:image-20220523152839-18.png]]
	177	+(% style="width:646px" %)
	178	+|Bit(bit)|(% style="width:272px" %)[15:14]|(% style="width:214px" %)[13:0]
	179	+|Value|(% style="width:272px" %)(((
	180	+BAT Status
245	245
246		-[[image:image-20220522235639-1.png||height="139" width="727"]]
	182	+00(b): Ultra Low ( BAT <= 2.50v)
247	247
	184	+01(b): Low  (2.50v <=BAT <= 2.55v)
	185	+
	186	+10(b): OK   (2.55v <= BAT <=2.65v)
	187	+
	188	+11(b): Good   (BAT >= 2.65v)
	189	+)))|(% style="width:214px" %)Actually BAT voltage
	190	+
	191	+[[image:image-20220522235639-1.png]]
	192	+
248	248	Check the battery voltage for LHT65N.
249	249
250	250	* BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
251	251	* Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
252	252
253		-=== 2.4.3 Built-in Temperature ===
	198	+=== Built-in Temperature ===
254	254
255		-[[image:image-20220522235639-2.png||height="138" width="722"]]
	200	+[[image:image-20220522235639-2.png]]
256	256
257	257	* Temperature:  0x0ABB/100=27.47℃
258	258
...	...	@@ -260,92 +260,72 @@
260	260
261	261	* Temperature:  (0xF5C6-65536)/100=-26.18℃
262	262
263		-=== 2.4.4 Built-in Humidity ===
	208	+=== Built-in Humidity ===
264	264
265		-[[image:image-20220522235639-4.png||height="138" width="722"]]
	210	+[[image:image-20220522235639-4.png]]
266	266
267	267	* Humidity:    0x025C/10=60.4%
268	268
269		-=== 2.4.5 Ext # ===
	214	+=== Ext # ===
270	270
271	271	Bytes for External Sensor:
272	272
273		-[[image:image-20220523152822-17.png]]
	218	+(% style="width:624px" %)
	219	+|(% style="width:139px" %)**EXT # Value**|(% style="width:484px" %)**External Sensor Type**
	220	+|(% style="width:139px" %)0x01|(% style="width:484px" %)Sensor E3, Temperature Sensor
	221	+|(% style="width:139px" %)0x09|(% style="width:484px" %)Sensor E3, Temperature Sensor, Datalog Mod
274	274
275		-=== 2.4.6 Ext value ===
	223	+=== Ext value ===
276	276
277		-==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
	225	+==== Ext~=1, E3 Temperature Sensor ====
278	278
279	279	[[image:image-20220522235639-5.png]]
280	280
	229	+
281	281	* DS18B20 temp=0x0ADD/100=27.81℃
282	282
283	283	The last 2 bytes of data are meaningless
284	284
	234	+
	235	+
285	285	[[image:image-20220522235639-6.png]]
286	286
287	287	* External temperature= (0xF54F-65536)/100=-27.37℃
288	288
289		-(((
290	290	The last 2 bytes of data are meaningless
291		-)))
292	292
293		-(((
	242	+
294	294	If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
295		-)))
296	296
297	297
298		-==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
	246	+==== Ext~=9, E3 sensor with Unix Timestamp ====
299	299
300	300	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:
301	301
302		-(% border="1" style="background-color:#ffffcc; color:green; width:510px" %)
303		-|(% style="width:96px" %)(((
304		-**Size(bytes)**
305		-)))|(% style="width:71px" %)(((
306		-**2**
307		-)))|(% style="width:99px" %)(((
308		-**2**
309		-)))|(% style="width:132px" %)(((
310		-**2**
311		-)))|(% style="width:54px" %)(((
312		-**1**
313		-)))|(% style="width:64px" %)(((
314		-**4**
315		-)))
316		-|(% style="width:96px" %)(((
317		-**Value**
318		-)))|(% style="width:71px" %)(((
319		-[[External temperature>>||anchor="H4.2SetExternalSensorMode"]]
320		-)))|(% style="width:99px" %)(((
321		-(((
322		-[[Built-In>>||anchor="H2.4.3Built-inTemperature"]]
323		-)))
324	324
325		-(((
326		-[[Temperature>>||anchor="H2.4.3Built-inTemperature"]]
327		-)))
328		-)))|(% style="width:132px" %)(((
329		-(((
330		-BAT Status &
331		-)))
	251	+(% style="width:697px" %)
	252	+|(% 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**
	253	+|(% style="width:96px" %)**Value**|(% style="width:164px" %)[[External temperature>>path:#DS18b20_value]]|(% style="width:104px" %)(((
	254	+[[Built-In>>path:#SHT20_Temperature]]
332	332
333		-(((
334		-[[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
	256	+[[Temperature>>path:#SHT20_Temperature]]
	257	+)))|(% style="width:106px" %)(((
	258	+[[BAT Status &>>path:#BAT_Humidity]]
	259	+
	260	+[[Built-in>>path:#BAT_Humidity]]
	261	+
	262	+[[Humidity>>path:#BAT_Humidity]]
	263	+)))|(% style="width:108px" %)[[Status & Ext>>path:#Status_EXT]]|(% style="width:116px" %)(((
	264	+[[Unix>>path:#Unix_Time_Stamp]]
	265	+
	266	+[[Time Stamp>>path:#Unix_Time_Stamp]]
335	335	)))
336		-)))|(% style="width:54px" %)(((
337		-Status & Ext
338		-)))|(% style="width:64px" %)(((
339		-(((
340		-[[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
341		-)))
342		-)))
343	343
344		-* **Battery status & (% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)Built-in Humidity(%%)**
	269	+* **Battery status & **[[(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)**Built-in Humidity**>>path:#SHT20_Humidity]]
345	345
346		-(% border="1" style="background-color:#ffffcc; color:green; width:469px" %)
347		-|(% style="width:65px" %)Bit(bit)|(% style="width:267px" %)[15:14]|(% style="width:134px" %)[11:0]
348		-|(% style="width:65px" %)Value|(% style="width:267px" %)(((
	271	+(% style="width:587px" %)
	272	+|Bit(bit)|(% style="width:280px" %)[15:14]|(% style="width:136px" %)[11:0]
	273	+|Value|(% style="width:280px" %)(((
349	349	BAT Status
350	350
351	351	00(b): Ultra Low ( BAT <= 2.50v)
...	...	@@ -355,8 +355,8 @@
355	355	10(b): OK   (2.55v <= BAT <=2.65v)
356	356
357	357	11(b): Good   (BAT >= 2.65v)
358		-)))|(% style="width:134px" %)(((
359		-[[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
	283	+)))|(% style="width:136px" %)(((
	284	+[[Built-in Humidity>>path:#SHT20_Humidity]]
360	360
361	361
362	362	)))
...	...	@@ -363,27 +363,29 @@
363	363
364	364	* **Status & Ext Byte**
365	365
366		-[[image:image-20220523152434-16.png]]
	291	+(% style="width:732px" %)
	292	+|(% 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]**
	293	+|(% 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" %)(((
	294	+Ext:
367	367
	296	+0b(1001)
	297	+)))
	298	+
368	368	* Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
369	369	* 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.
370	370	* 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)
371	371
372		-== 2.5 Show data on Datacake ==
	303	+== Show data on Datacake ==
373	373
374	374	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:
375	375
376		-(((
	307	+
377	377	**Step 1**: Be sure that your device is programmed and properly connected to the LoRaWAN network.
378		-)))
379	379
380		-(((
381	381	**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.
382		-)))
383	383
384		-(((
	312	+
385	385	Add Datacake:
386		-)))
387	387
388	388	[[image:image-20220523000825-7.png||height="262" width="583"]]
389	389
...	...	@@ -392,24 +392,21 @@
392	392
393	393	[[image:image-20220523000825-8.png||height="453" width="406"]]
394	394
	322	+
395	395	In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
396	396
397	397	[[image:image-20220523000825-9.png||height="366" width="392"]]
398	398
399		-[[image:image-20220523000825-10.png||height="413" width="728"]]
400	400
401		-== 2.6 Datalog Feature ==
402	402
403		-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.
	329	+[[image:image-20220523000825-10.png||height="432" width="762"]]
404	404
405		-=== 2.6.1 Ways to get datalog via LoRaWAN ===
406	406
407		-There are two methods:
	332	+== Datalog Feature ==
408	408
409		-1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
410		-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.
	334	+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.
411	411
412		-=== 2.6.2 Unix TimeStamp ===
	336	+=== Unix TimeStamp ===
413	413
414	414	LHT65N uses Unix TimeStamp format based on
415	415
...	...	@@ -416,215 +416,100 @@
416	416	[[image:image-20220523001219-11.png||height="97" width="627"]]
417	417
418	418
419		-(((
420	420	User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
421		-)))
422	422
423		-(((
424	424	Below is the converter example
425		-)))
426	426
427		-[[image:image-20220523001219-12.png||height="298" width="720"]]
	347	+[[image:image-20220523001219-12.png||height="353" width="853"]]
428	428
429	429	So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
430	430
431		-=== 2.6.3 Set Device Time ===
432	432
433		-(((
	352	+=== Set Device Time ===
	353	+
434	434	There are two ways to set device’s time:
435		-)))
436	436
437		-(((
438	438	**~1. Through LoRaWAN MAC Command (Default settings)**
439		-)))
440	440
441		-(((
442	442	User need to set SYNCMOD=1 to enable sync time via MAC command.
443		-)))
444	444
445		-(((
446	446	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).
447		-)))
448	448
449		-(((
450	450	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.
451		-)))
452	452
453		-(((
454		-
455		-)))
456	456
457		-(((
458	458	**2. Manually Set Time**
459		-)))
460	460
461		-(((
462	462	User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
463		-)))
464	464
465		-=== 2.6.4 Poll sensor value ===
466	466
	370	+=== Poll sensor value ===
	371	+
467	467	User can poll sensor value based on timestamps from the server. Below is the downlink command.
468	468
469		-[[image:image-20220523152302-15.png]]
470	470
471		-(((
	375	+(% style="width:454px" %)
	376	+|(% style="width:69px" %)1byte|(% style="width:129px" %)4bytes|(% style="width:134px" %)4bytes|(% style="width:119px" %)1byte
	377	+|(% style="width:69px" %)31|(% style="width:129px" %)Timestamp start|(% style="width:134px" %)Timestamp end|(% style="width:119px" %)Uplink Interval
	378	+
472	472	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.
473		-)))
474	474
475		-(((
476		-For example, downlink command (% style="display:none" %) (%%)**31 5FC5F350 5FC6 0160 05**
477		-)))
478	478
479		-(((
	382	+For example, downlink command 31 5FC5F350 5FC6 0160 05
	383	+
480	480	Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
481		-)))
482	482
483		-(((
484	484	Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
485		-)))
486	486
487	487
488		-=== 2.6.5 Datalog Uplink payload ===
	389	+=== Datalog Uplink payload ===
489	489
490	490	The Datalog poll reply uplink will use below payload format.
491	491
492		-(((
493		-**Retrieval data payload**
494		-)))
495	495
496		-(% border="1" style="background-color:#ffffcc; color:green; width:510px" %)
497		-|(% style="width:93px" %)(((
498		-(((
499		-**Size(bytes)**
500		-)))
501		-)))|(% style="width:71px" %)(((
502		-(((
503		-**2**
504		-)))
505		-)))|(% style="width:102px" %)(((
506		-(((
507		-**2**
508		-)))
509		-)))|(% style="width:86px" %)(((
510		-(((
511		-**2**
512		-)))
513		-)))|(% style="width:86px" %)(((
514		-(((
515		-**1**
516		-)))
517		-)))|(% style="width:48px" %)(((
518		-(((
519		-**4**
520		-)))
521		-)))
522		-|(% style="width:93px" %)(((
523		-(((
524		-**Value**
525		-)))
526		-)))|(% style="width:71px" %)(((
527		-(((
528		-[[External sensor data>>||anchor="H2.4.6Extvalue"]]
529		-)))
530		-)))|(% style="width:102px" %)(((
531		-(((
532		-(((
533		-[[Built In>>||anchor="H2.4.3Built-inTemperature"]]
534		-)))
535		-)))
	394	+Retrieval data payload
536	536
537		-(((
538		-(((
539		-[[Temperature>>||anchor="H2.4.3Built-inTemperature"]]
540		-)))
541		-)))
542		-)))|(% style="width:86px" %)(((
543		-(((
544		-(((
545		-[[Built-in>>||anchor="H2.4.4Built-inHumidity"]]
546		-)))
547		-)))
	396	+|**Size(bytes)**|**2**|**2**|**2**|**1**|**4**
	397	+|**Value**|[[External sensor data>>path:#Extension_sensor_value]]|(((
	398	+[[Built-In>>path:#SHT20_Temperature]]
548	548
549		-(((
550		-(((
551		-[[Humidity>>||anchor="H2.4.4Built-inHumidity"]]
552		-)))
553		-)))
554		-)))|(% style="width:86px" %)(((
555		-(((
556		-[[Poll message flag & Ext>>||anchor="H2.6.4DatalogUplinkpayload"]]
557		-)))
558		-)))|(% style="width:48px" %)(((
559		-(((
560		-(((
561		-[[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
562		-)))
563		-)))
	400	+[[Temperature>>path:#SHT20_Temperature]]
	401	+)))|(((
	402	+[[Built-in>>path:#SHT20_Humidity]]
564	564
565		-(((
566		-(((
	404	+[[Humidity>>path:#SHT20_Humidity]]
	405	+)))|[[Poll message flag & Ext>>path:#Poll_EXT]]|(((
	406	+[[Unix Time Stamp>>path:#Unix_Time_Stamp]]
	407	+
567	567
568	568	)))
569		-)))
570		-)))
571	571
572		-**Poll message flag & Ext**
	411	+Poll message flag & Ext
573	573
574		-[[image:image-20220523152208-14.png]]
575	575
576		-(((
577		-(((
578		-Poll Message Flag: 1: This message is a poll message reply.
579		-)))
580		-)))
	414	+|**Bits**|**7**|**6**|**5**|**4**|**[3:0]**
	415	+|**Status & Ext**|Not Defined|Poll Message Flag|Sync time OK|Unix Time Request|(((
	416	+Ext:
581	581
582		-* (((
583		-(((
584		-Poll Message Flag is set to 1.
	418	+0b(1001)
585	585	)))
586		-)))
587		-* (((
588		-(((
589		-Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
590		-)))
591		-)))
592	592
593		-(((
594		-(((
	421	+Poll Message Flag: 1: This message is a poll message reply.
	422	+
	423	+* Poll Message Flag is set to 1.
	424	+* Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
	425	+
595	595	For example, in US915 band, the max payload for different DR is:
596		-)))
597		-)))
598	598
599		-(((
600		-(((
601		-a) DR0: max is 11 bytes so one entry of data
602		-)))
603		-)))
	428	+a)      DR0: max is 11 bytes so one entry of data
604	604
605		-(((
606		-(((
607		-b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
608		-)))
609		-)))
	430	+b)      DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
610	610
611		-(((
612		-(((
613		-c) DR2: total payload includes 11 entries of data
614		-)))
615		-)))
	432	+c)      DR2: total payload includes 11 entries of data
616	616
617		-(((
618		-(((
619		-d) DR3: total payload includes 22 entries of data.
620		-)))
621		-)))
	434	+d)      DR3: total payload includes 22 entries of data.
622	622
623		-(((
624		-(((
625	625	If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0
626		-)))
627		-)))
628	628
629	629
630	630	**Example:**
...	...	@@ -631,29 +631,37 @@
631	631
632	632	If LHT65N has below data inside Flash:
633	633
634		-[[image:image-20220523144455-1.png||height="335" width="735"]]
	443	+Flash Addr   |Unix Time | Ext | BAT voltage|  Value
635	635
636		-(((
637		-If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
638		-)))
	445	+80196E0 21/1/19 04:27:03 1 3145 sht_temp=22.00 sht_hum=32.6 ds_temp=327.67
639	639
640		-(((
	447	+80196F0 21/1/19 04:28:57 1 3145 sht_temp=21.90 sht_hum=33.1 ds_temp=327.67
	448	+
	449	+8019700 21/1/19 04:30:30 1 3145 sht_temp=21.81 sht_hum=33.4 ds_temp=327.67
	450	+
	451	+8019710 21/1/19 04:40:30 1 3145 sht_temp=21.65 sht_hum=33.7 ds_temp=327.67
	452	+
	453	+8019720 21/1/19 04:50:30 1 3147 sht_temp=21.55 sht_hum=34.1 ds_temp=327.67
	454	+
	455	+8019730 21/1/19 05:00:30 1 3149 sht_temp=21.50 sht_hum=34.1 ds_temp=327.67
	456	+
	457	+8019740 21/1/19 05:10:30 1 3149 sht_temp=21.43 sht_hum=34.6 ds_temp=327.67
	458	+
	459	+8019750 21/1/19 05:20:30 1 3151 sht_temp=21.35 sht_hum=34.9 ds_temp=327.67
	460	+
	461	+
	462	+If user sends below downlink command:
	463	+
	464	+3160065F9760066DA705
	465	+
641	641	Where : Start time: 60065F97 = time 21/1/19 04:27:03
642		-)))
643	643
644		-(((
645	645	Stop time 60066DA7= time 21/1/19 05:27:03
646		-)))
647	647
648		-(((
649		-
650		-)))
651	651
652		-(((
653	653	LHT65N will uplink this payload.
654		-)))
655	655
656		-[[image:image-20220523001219-13.png||height="421" width="727"]]
	473	+[[image:image-20220523001219-13.png]]
657	657
658	658	7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
659	659
...	...	@@ -671,69 +671,49 @@
671	671
672	672	Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
673	673
674		-== 2.7 Alarm Mode ==
675	675
	492	+== Alarm Mode ==
	493	+
676	676	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.
677	677
678		-(((
679		-(% style="color:red" %)Note: Alarm mode will increase a little big the power consumption, we recommend extending the normal reading time when enabling this feature.
680		-)))
681	681
682		-(((
683		-**AT Commands for Alarm mode:**
684		-)))
	497	+Note: Alarm mode will increase a little big the power consumption, we recommend extending the normal reading time when enabling this feature.
685	685
686		-(% class="box infomessage" %)
687		-(((
688		-(((
	499	+
	500	+AT Commands for Alarm mode:
	501	+
689	689	**AT+WMOD=1**: Enable/Disable Alarm Mode. (0:Disable, 1: Enable)
690		-)))
691		-)))
692	692
693		-(% class="box infomessage" %)
694		-(((
695		-(((
696	696	**AT+CITEMP=1**: The interval to check the temperature for Alarm. (Unit: minute)
697		-)))
698		-)))
699	699
700		-== 2.8 LED Indicator ==
701	701
702		-(((
	507	+
	508	+== LED Indicator ==
	509	+
703	703	The LHT65N has a triple color LED which for easy shows different stage.
704		-)))
705	705
706		-(((
707	707	While pressing ACT button, the LED will work as per LED status with ACT button.
708		-)))
709	709
710		-(((
711	711	In a normal working state:
712		-)))
713	713
714		-* (((
715		-For each uplink, the BLUE LED or RED LED will blink once.
716		-)))
717		-* (((
718		-BLUE LED when an external sensor is connected
719		-)))
720		-* (((
721		-RED LED when an external sensor is not connected
722		-)))
723		-* (((
724		-For each success downlink, the PURPLE LED will blink once
725		-)))
	516	+* For each uplink, the BLUE LED or RED LED will blink once.
	517	+* BLUE LED when an external sensor is connected
	518	+* RED LED when an external sensor is not connected
	519	+* For each success downlink, the PURPLE LED will blink once
726	726
727	727	----
728	728
729		-== 2.9 Installation ==
	523	+== Installation ==
730	730
731	731	[[image:image-20220516231650-1.png||height="436" width="428"]]
732	732
733		-= 3. Sensors & Accessories =
734	734
735		-== 3.1 E3 Temperature Probe ==
736	736
	529	+
	530	+= Sensors & Accessories =
	531	+
	532	+== E3 Temperature Probe ==
	533	+
737	737	[[image:image-20220515080154-4.png||height="182" width="161"]] [[image:image-20220515080330-5.png||height="201" width="195"]]
738	738
739	739
...	...	@@ -746,116 +746,93 @@
746	746	* -55°C to 125°C
747	747	* Working voltage 2.35v ~~ 5v
748	748
749		-= 4. Configure LHT65N via AT Command or LoRaWAN Downlink =
	546	+= Configure LHT65N via AT Command or LoRaWAN Downlink =
750	750
751		-(((
752	752	Use can configure LHT65N via AT Command or LoRaWAN Downlink.
753		-)))
754	754
755		-* (((
756		-AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
757		-)))
758		-* (((
759		-LoRaWAN Downlink instruction for different platforms:
760		-)))
	550	+* AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
	551	+* LoRaWAN Downlink instruction for different platforms:
761	761
762		-(((
763	763	[[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]]
764		-)))
765	765
766		-(((
	555	+
767	767	There are two kinds of commands to configure LHT65N, they are:
768		-)))
769	769
770		-(((
771		-(% style="color:#4f81bd" %)* **General Commands**.
772		-)))
	558	+* **General Commands**.
773	773
774		-(((
775	775	These commands are to configure:
776		-)))
777	777
778		-* (((
779		-General system settings like: uplink interval.
780		-)))
781		-* (((
782		-LoRaWAN protocol & radio-related commands.
783		-)))
	562	+* General system settings like: uplink interval.
	563	+* LoRaWAN protocol & radio-related commands.
784	784
785		-(((
786	786	They are the same for all Dragino Devices which supports DLWS-005 LoRaWAN Stack(Note~*~*). These commands can be found on the wiki:
787		-)))
788	788
789		-(((
790	790	[[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_Downlink_Command>>url:http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command]]
791		-)))
792	792
793		-(((
794		-(% style="color:#4f81bd" %)* **Commands special design for LHT65N**
795		-)))
796	796
797		-(((
	570	+
	571	+* **Commands special design for LHT65N**
	572	+
798	798	These commands are only valid for LHT65N, as below:
799		-)))
800	800
801		-== 4.1 Set Transmit Interval Time ==
802	802
	576	+== Set Transmit Interval Time ==
	577	+
803	803	Feature: Change LoRaWAN End Node Transmit Interval.
804	804
805	805	**AT Command: AT+TDC**
806	806
807		-[[image:image-20220523150701-2.png]]
	582	+|**Command Example**|**Function**|**Response**
	583	+|AT+TDC?|Show current transmit Interval|(((
	584	+30000
808	808
809		-(((
810		-**Downlink Command: 0x01**
	586	+OK
	587	+
	588	+the interval is 30000ms = 30s
811	811	)))
	590	+|AT+TDC=60000|Set Transmit Interval|(((
	591	+OK
812	812
813		-(((
814		-Format: Command Code (0x01) followed by 3 bytes time value.
	593	+Set transmit interval to 60000ms = 60 seconds
815	815	)))
816	816
817		-(((
	596	+**Downlink Command: 0x01**
	597	+
	598	+Format: Command Code (0x01) followed by 3 bytes time value.
	599	+
818	818	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
819		-)))
820	820
821		-* (((
822		-**Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
823		-)))
824		-* (((
825		-**Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
826		-)))
	602	+* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	603	+* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
827	827
828		-== 4.2 Set External Sensor Mode ==
	605	+== Set External Sensor Mode ==
829	829
830	830	Feature: Change External Sensor Mode.
831	831
832	832	**AT Command: AT+EXT**
833	833
834		-[[image:image-20220523150759-3.png]]
	611	+|**Command Example**|**Function**|**Response**
	612	+|AT+EXT?|Get current external sensor mode|(((
	613	+1
835	835
836		-(((
837		-**Downlink Command: 0xA2**
	615	+OK
	616	+
	617	+External Sensor mode =1
838	838	)))
	619	+|AT+EXT=1|(% colspan="2" %)Set external sensor mode to 1
	620	+|AT+EXT=9|(% colspan="2" %)Set to external DS18B20 with timestamp
839	839
840		-(((
	622	+**Downlink Command: 0xA2**
	623	+
841	841	Total bytes: 2 ~~ 5 bytes
842		-)))
843	843
844		-(((
845		-**Example:**
846		-)))
	626	+Example:
847	847
848		-* (((
849		-0xA201: Set external sensor type to E1
850		-)))
851		-* (((
852		-0xA209: Same as AT+EXT=9
853		-)))
854		-* (((
855		-0xA20702003c,Same as AT+SETCNT=60
856		-)))
	628	+* 0xA201: Set external sensor type to E1
	629	+* 0xA209: Same as AT+EXT=9
	630	+* 0xA20702003c,Same as AT+SETCNT=60
857	857
858		-== 4.3 Enable/Disable uplink Temperature probe ID ==
	632	+== Enable/Disable uplink Temperature probe ID ==
859	859
860	860	Feature: If PID is enabled, device will send the temperature probe ID on:
861	861
...	...	@@ -864,82 +864,101 @@
864	864
865	865	PID is default set to disable (0)
866	866
	641	+
867	867	**AT Command:**
868	868
869		-[[image:image-20220523150928-4.png]]
	644	+|**Command Example**|**Function**|**Response**
	645	+|AT+PID=1|Enable PID uplink|OK
870	870
871	871	**Downlink Command:**
872	872
873		-* 0xA800  **~-~->** AT+PID=0
874		-* 0xA801     **~-~->** AT+PID=1
	649	+* 0xA800     à AT+PID=0
	650	+* 0xA801     à AT+PID=1
875	875
876		-== 4.4 Set Password ==
877	877
	653	+== Set Password ==
	654	+
878	878	Feature: Set device password, max 9 digits
879	879
880	880	**AT Command: AT+PWORD**
881	881
882		-[[image:image-20220523151052-5.png]]
	659	+|**Command Example**|**Function**|**Response**
	660	+|AT+PWORD=?|Show password|(((
	661	+123456
883	883
884		-(((
885		-**Downlink Command:**
	663	+
	664	+OK
886	886	)))
	666	+|AT+PWORD=999999|Set password|OK
887	887
888		-(((
	668	+**Downlink Command:**
	669	+
889	889	No downlink command for this feature.
890		-)))
891	891
892		-== 4.5 Quit AT Command ==
893	893
	673	+== Quit AT Command ==
	674	+
894	894	Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
895	895
896	896	**AT Command: AT+DISAT**
897	897
898		-[[image:image-20220523151132-6.png]]
	679	+|**Command Example**|**Function**|**Response**
	680	+|AT+DISAT|Quit AT Commands mode|OK
899	899
900	900	**Downlink Command:**
901	901
902	902	No downlink command for this feature.
903	903
904		-== 4.6 Set to sleep mode ==
905	905
	687	+== Set to sleep mode ==
	688	+
906	906	Feature: Set device to sleep mode
907	907
908	908	**AT Command: AT+SLEEP**
909	909
910		-[[image:image-20220523151218-7.png]]
	693	+| | |
	694	+|**Command Example**|**Function**|**Response**
	695	+|AT+SLEEP|Set to sleep mode|(((
	696	+Clear all stored sensor data…
911	911
	698	+OK
	699	+)))
	700	+
912	912	**Downlink Command:**
913	913
914	914	* There is no downlink command to set to Sleep mode.
915	915
916		-== 4.7 Set system time ==
917	917
	706	+== Set system time ==
	707	+
918	918	Feature: Set system time, unix format. [[See here for format detail.>>path:#TimeStamp]]
919	919
920	920	**AT Command:**
921	921
922		-[[image:image-20220523151253-8.png]]
	712	+|**Command Example**|**Function**
	713	+|AT+TIMESTAMP=1611104352|(((
	714	+OK
923	923
	716	+Set System time to 2021-01-20 00:59:12
	717	+)))
	718	+
924	924	**Downlink Command:**
925	925
926	926	0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
927	927
928		-== 4.8 Set Time Sync Mode ==
929	929
930		-(((
	724	+== Set Time Sync Mode ==
	725	+
931	931	Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
932		-)))
933	933
934		-(((
	728	+
935	935	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.
936		-)))
937	937
938		-(((
	731	+
939	939	**AT Command:**
940		-)))
941	941
942		-[[image:image-20220523151336-9.png]]
	734	+|**Command Example**|**Function**
	735	+|AT+SYNCMOD=1|Enable Sync system time via LoRaWAN MAC Command (DeviceTimeReq)
943	943
944	944	**Downlink Command:**
945	945
...	...	@@ -947,186 +947,197 @@
947	947
948	948	0x28 00 ~/~/ Same As AT+SYNCMOD=0
949	949
950		-== 4.9 Set Time Sync Interval ==
951	951
	744	+== Set Time Sync Interval ==
	745	+
952	952	Feature: Define System time sync interval. SYNCTDC default value: 10 days.
953	953
954	954	**AT Command:**
955	955
956		-[[image:image-20220523151411-10.png]]
	750	+|**Command Example**|**Function**
	751	+|AT+SYNCTDC=0x0A|Set SYNCTDC to 10 (0x0A), so the sync time is 10 days.
957	957
958	958	**Downlink Command:**
959	959
960	960	0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
961	961
962		-== 4.10 Print data entries base on page. ==
963	963
	758	+== Print data entries base on page. ==
	759	+
964	964	Feature: Print the sector data from start page to stop page (max is 416 pages).
965	965
966	966	**AT Command: AT+PDTA**
967	967
968		-[[image:image-20220523151450-11.png]]
	764	+|**Command Example**|**Response**
	765	+|(((
	766	+AT+PDTA=1,3
969	969
	768	+
	769	+
	770	+Print page 1 to 3
	771	+)))|(((
	772	+8019500 19/6/26 16:48 1 2992 sht_temp=28.21 sht_hum=71.5 ds_temp=27.31
	773	+
	774	+8019510 19/6/26 16:53 1 2994 sht_temp=27.64 sht_hum=69.3 ds_temp=26.93
	775	+
	776	+8019520 19/6/26 16:58 1 2996 sht_temp=28.39 sht_hum=72.0 ds_temp=27.06
	777	+
	778	+8019530 19/6/26 17:03 1 2996 sht_temp=27.97 sht_hum=70.4 ds_temp=27.12
	779	+
	780	+8019540 19/6/26 17:08 1 2996 sht_temp=27.80 sht_hum=72.9 ds_temp=27.06
	781	+
	782	+8019550 19/6/26 17:13 1 2998 sht_temp=27.30 sht_hum=72.4 ds_temp=26.68
	783	+
	784	+8019560 19/6/26 17:22 1 2992 sht_temp=26.27 sht_hum=62.3 ds_temp=26.56
	785	+
	786	+8019570
	787	+
	788	+8019580
	789	+
	790	+8019590
	791	+
	792	+80195A0
	793	+
	794	+80195B0
	795	+
	796	+80195C0
	797	+
	798	+80195D0
	799	+
	800	+80195E0
	801	+
	802	+80195F0
	803	+
	804	+
	805	+OK
	806	+)))
	807	+
970	970	**Downlink Command:**
971	971
972	972	No downlink commands for feature
973	973
974		-== 4.11 Print last few data entries. ==
975	975
	813	+
	814	+== Print last few data entries. ==
	815	+
976	976	Feature: Print the last few data entries
977	977
978	978	**AT Command: AT+PLDTA**
979	979
980		-[[image:image-20220523151524-12.png]]
	820	+|**Command Example**|**Response**
	821	+|(((
	822	+AT+PLDTA=5
981	981
982		-**Downlink Command:**
983	983
984		-No downlink commands for feature
985	985
986		-== 4.12 Clear Flash Record ==
	826	+Print last 5 entries
	827	+)))|(((
	828	+Stop Tx and RTP events when read sensor data
987	987
988		-Feature: Clear flash storage for data log feature.
	830	+1 19/6/26 13:59 1 3005 sht_temp=27.09 sht_hum=79.5 ds_temp=26.75
989	989
990		-**AT Command: AT+CLRDTA**
	832	+2 19/6/26 14:04 1 3007 sht_temp=26.65 sht_hum=74.8 ds_temp=26.43
991	991
992		-[[image:image-20220523151556-13.png]]
	834	+3 19/6/26 14:09 1 3007 sht_temp=26.91 sht_hum=77.9 ds_temp=26.56
993	993
994		-**Downlink Command: 0xA3**
	836	+4 19/6/26 14:15 1 3007 sht_temp=26.93 sht_hum=76.7 ds_temp=26.75
995	995
996		-* Example: 0xA301 ~/~/Same as AT+CLRDTA
	838	+5 19/6/26 14:20 1 3007 sht_temp=26.78 sht_hum=76.6 ds_temp=26.43
997	997
998		-== 4.13 Auto Send None-ACK messages ==
	840	+Start Tx and RTP events
999	999
1000		-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.
	842	+OK
	843	+)))
1001	1001
	845	+**Downlink Command:**
1002	1002
1003		-**AT Command: AT+PNACKMD**
	847	+No downlink commands for feature
1004	1004
1005		-The default factory setting is 0
1006	1006
1007		-(% border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1008		-|=(% style="width: 171px;" %)**Command Example**|=(% style="width: 219px;" %)**Function**|=(% style="width: 119px;" %)**Response**
1009		-|(% style="width:171px" %)AT+PNACKMD=1|(% style="width:219px" %)Poll None-ACK message|(% style="width:119px" %)OK
1010	1010
1011		-**Downlink Command: 0x34**
	851	+== Clear Flash Record ==
1012	1012
1013		-* Example: 0x3401 ~/~/Same as AT+PNACKMD=1
	853	+Feature: Clear flash storage for data log feature.
1014	1014
1015		-= 5. Battery & How to replace =
	855	+**AT Command: AT+CLRDTA**
1016	1016
1017		-== 5.1 Battery Type ==
	857	+|**Command Example**|**Function**|**Response**
	858	+|AT+CLRDTA|Clear date record|(((
	859	+Clear all stored sensor data…
1018	1018
	861	+OK
	862	+)))
	863	+
	864	+**Downlink Command: 0xA3**
	865	+
	866	+* Example: 0xA301 ~/~/Same as AT+CLRDTA
	867	+
	868	+
	869	+
	870	+= Battery & How to replace =
	871	+
	872	+== Battery Type ==
	873	+
1019	1019	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.
1020	1020
1021		-(((
1022	1022	The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1023	1023	[[image:image-20220515075034-1.png||height="208" width="644"]]
1024		-)))
1025	1025
1026		-(((
	879	+
1027	1027	The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1028	1028
1029		-)))
1030	1030
1031		-== 5.2 Replace Battery ==
	883	+== Replace Battery ==
1032	1032
1033	1033	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.
1034	1034
1035	1035	[[image:image-20220515075440-2.png||height="338" width="272"]][[image:image-20220515075625-3.png||height="193" width="257"]]
1036	1036
1037		-== 5.3 Battery Life Analyze ==
1038	1038
1039		-(((
	890	+== Battery Life Analyze ==
	891	+
1040	1040	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:
1041	1041	https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf
1042		-)))
1043	1043
1044		-= 6. Order Info =
1045	1045
1046		-(((
1047		-Part Number: (% style="color:#4f81bd" %)** LHT65N-XX-YY**
1048		-)))
	896	+= Order Info =
1049	1049
1050		-(((
1051		-(% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1052		-)))
	898	+Part Number: (% class="mark" %)**LHT65N-XX**
1053	1053
1054		-* (((
1055		-(% style="color:#4f81bd" %)** AS923**(%%): LoRaWAN AS923 band
1056		-)))
1057		-* (((
1058		-(% style="color:#4f81bd" %)** AU915**(%%): LoRaWAN AU915 band
1059		-)))
1060		-* (((
1061		-(% style="color:#4f81bd" %)** EU433**(%%): LoRaWAN EU433 band
1062		-)))
1063		-* (((
1064		-(% style="color:#4f81bd" %)** EU868**(%%): LoRaWAN EU868 band
1065		-)))
1066		-* (((
1067		-(% style="color:#4f81bd" %)** KR920**(%%): LoRaWAN KR920 band
1068		-)))
1069		-* (((
1070		-(% style="color:#4f81bd" %)** US915**(%%): LoRaWAN US915 band
1071		-)))
1072		-* (((
1073		-(% style="color:#4f81bd" %)** IN865**(%%): LoRaWAN IN865 band
1074		-)))
1075		-* (((
1076		-(% style="color:#4f81bd" %)** CN470**(%%): LoRaWAN CN470 band
1077		-)))
	900	+**XX**: The default frequency band
1078	1078
1079		-(((
1080		-(% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1081		-)))
	902	+* **AS923**: LoRaWAN AS923 band
	903	+* **AU915**: LoRaWAN AU915 band
	904	+* **EU433**: LoRaWAN EU433 band
	905	+* **EU868**: LoRaWAN EU868 band
	906	+* **KR920**: LoRaWAN KR920 band
	907	+* **US915**: LoRaWAN US915 band
	908	+* **IN865**: LoRaWAN IN865 band
	909	+* **CN470**: LoRaWAN CN470 band
1082	1082
1083		-* (((
1084		-(% style="color:#4f81bd" %)**E3**(%%): External Temperature Probe
1085		-)))
	911	+**YY**: Sensor Accessories
1086	1086
1087		-= 7. Packing Info =
	913	+* **E3**: External Temperature Probe
1088	1088
1089		-(((
	915	+= Packing Info =
	916	+
1090	1090	**Package Includes**:
1091		-)))
1092	1092
1093		-* (((
1094		-LHT65N Temperature & Humidity Sensor x 1
1095		-)))
1096		-* (((
1097		-Program cable x 1
1098		-)))
1099		-* (((
1100		-Optional external sensor
1101		-)))
	919	+* LHT65N Temperature & Humidity Sensor x 1
	920	+* Program cable x 1
	921	+* Optional external sensor
1102	1102
1103		-(((
1104	1104	**Dimension and weight**:
1105		-)))
1106	1106
1107		-* (((
1108		-Device Size:  13.5 x 7 x 3 cm
1109		-)))
1110		-* (((
1111		-Device Weight: 105g
1112		-)))
1113		-* (((
1114		-Package Size / pcs : 14.5 x 8 x 5 cm
1115		-)))
1116		-* (((
1117		-Weight / pcs : 170g
1118		-)))
	925	+* Device Size:  13.5 x 7 x 3 cm
	926	+* Device Weight: 105g
	927	+* Package Size / pcs : 14.5 x 8 x 5 cm
	928	+* Weight / pcs : 170g
1119	1119
1120		-= 8. FCC Warning =
	930	+= FCC Warning =
1121	1121
1122		-(((
1123	1123	This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1124		-)))
1125	1125
1126		-(((
1127		-(1) This device may not cause harmful interference；
1128		-)))
	934	+(1) This device may not cause harmful interference, and
1129	1129
1130		-(((
1131		-(2) this device must accept any interference received, including interference that may cause undesired operation.
1132		-)))
	936	+(2) this device must accept any interference received, including interference that may cause undesired operation

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