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Author

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1		-XWiki.Xiaoling
	1	+XWiki.Edwin

Content

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1	1	(% style="text-align:center" %)
2		-[[image:image-20220523115324-1.jpeg||height="500" width="500"]]
	2	+[[image:image-20220523115324-1.jpeg||height="317" width="317"]]
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5	5	**LHT65N LoRaWAN Temperature & Humidity Sensor Manual**
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8	8
	9	+
9	9	**Table of Contents：**
10	10
11	11	{{toc/}}
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13	13
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15		-= 1.Introduction =
16	16
	17	+= 1. Introduction =
	18	+
17	17	== 1.1 What is LHT65N Temperature & Humidity Sensor ==
18	18
19	19	(((
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132	132
133	133	[[image:image-20220515123819-1.png||height="379" width="317"]]
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135		-[[image:image-20220523153201-19.png||height="163" width="739"]]
	137	+[[image:image-20220523153201-19.png||height="180" width="818"]]
136	136
137	137	== 2.3 Example to join LoRaWAN network ==
138	138
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217	217	[[Humidity>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
218	218	)))
219	219	)))|(% style="width:47px" %)(((
220		-[[Ext>>path:#Extension_Sensor]] #
	222	+[[Ext>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.5Ext23]] #
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222	222	[[Ext value>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.6Extvalue]]
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399	399
400	400	== 2.6 Datalog Feature ==
401	401
402		-This feature is always enabled. When user wants to retrieve the sensor value, he can send a poll command from the IoT platform to ask LHT65N to send the value in the required time slot.
	404	+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.
403	403
404		-=== 2.6.1 Unix TimeStamp ===
	406	+=== 2.6.1 Ways to get datalog via LoRaWAN ===
405	405
	408	+There are two methods:
	409	+
	410	+1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
	411	+1. Set PNACKMD=1, LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will sent all messages after network recover.
	412	+
	413	+=== 2.6.2 Unix TimeStamp ===
	414	+
406	406	LHT65N uses Unix TimeStamp format based on
407	407
408	408	[[image:image-20220523001219-11.png||height="97" width="627"]]
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420	420
421	421	So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
422	422
423		-=== 2.6.2 Set Device Time ===
	432	+=== 2.6.3 Set Device Time ===
424	424
425	425	(((
426	426	There are two ways to set device’s time:
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454	454	User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
455	455	)))
456	456
457		-=== 2.6.3 Poll sensor value ===
	466	+=== 2.6.4 Poll sensor value ===
458	458
459	459	User can poll sensor value based on timestamps from the server. Below is the downlink command.
460	460
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465	465	)))
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467	467	(((
468		-For example, downlink command **31 5FC5F350 5FC6 0160 05**
	477	+For example, downlink command (% style="display:none" %) (%%)**31 5FC5F350 5FC6 0160 05**
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480		-=== 2.6.4 Datalog Uplink payload ===
	489	+=== 2.6.5 Datalog Uplink payload ===
481	481
482	482	The Datalog poll reply uplink will use below payload format.
483	483
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987	987
988	988	* Example: 0xA301 ~/~/Same as AT+CLRDTA
989	989
	999	+
	1000	+== 4.13 Auto Send None-ACK messages ==
	1001	+
	1002	+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.
	1003	+
	1004	+
	1005	+**AT Command: AT+PNACKMD**
	1006	+
	1007	+The default factory setting is 0
	1008	+
	1009	+|**Command Example**|**Function**|**Response**
	1010	+|AT+PNACKMD=1|Poll None-ACK message|OK
	1011	+
	1012	+
	1013	+**Downlink Command: 0x34**
	1014	+
	1015	+* Example: 0x3401 ~/~/Same as AT+PNACKMD=1
	1016	+
	1017	+
990	990	= 5. Battery & How to replace =
991	991
992	992	== 5.1 Battery Type ==