Last modified by Mengting Qiu on 2024/04/30 14:27
<
From version < 55.3 >
edited by Xiaoling
on 2022/05/23 11:29
To version < 55.1 >
edited by Xiaoling
on 2022/05/23 11:22
>
Change comment: Uploaded new attachment "image-20220523112300-2.png", version {1}

Summary

Details

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Content
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1 -(% style="text-align:center" %)
2 -[[image:image-20220523111447-1.jpeg||height="448" width="448"]]
3 -
4 4  {{box cssClass="floatinginfobox" title="**Contents**"}}
5 5  {{toc/}}
6 6  {{/box}}
7 7  
8 -{{toc/}}
5 +(% class="wikigeneratedid" %)
6 += =
9 9  
8 +(% class="wikigeneratedid" %)
10 10  = 1.Introduction =
11 11  
12 -== 1.1 What is LHT65N Temperature & Humidity Sensor ==
11 +== 1.1 Overview ==
13 13  
13 +[[image:LHT65N_10.png||alt="LHT65_Image" height="265" width="265"]]
14 14  
15 +
15 15  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**(%%)**.**
16 16  
17 17  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.
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24 24  
25 25  *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
26 26  
27 -== 1.2 Features ==
28 28  
29 +== Features: ==
30 +
29 29  * Wall mountable
30 30  * LoRaWAN v1.0.3 Class A protocol
31 31  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
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38 38  * Tri-color LED to indicate working status
39 39  * Datalog feature
40 40  
41 -== 1.3 Specification ==
43 +== Specification: ==
42 42  
43 43  **Built-in Temperature Sensor:**
44 44  
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61 61  * ±2°C accuracy from -55°C to +125°C
62 62  * Operating Range: -55 °C ~~ 125 °C
63 63  
64 -= 2. Connect LHT65N to IoT Server =
66 += Connect LHT65N to IoT Server =
65 65  
66 -== 2.1 How does LHT65N work? ==
68 +== How does LHT65N work? ==
67 67  
68 68  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.
69 69  
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70 70  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.
71 71  
72 72  
73 -== 2.2 How to Activate LHT65N? ==
75 +== How to Activate LHT65N? ==
74 74  
75 75  The LHT65N has two working modes:
76 76  
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81 81  
82 82  [[image:image-20220515123819-1.png||height="379" width="317"]]
83 83  
84 -(% border="1" %)
85 85  |**Behavior on ACT**|**Function**|**Action**
86 86  |**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.
87 87  |**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.
88 88  |**Fast press ACT 5 times**|Deactivate Device|red led will solid on for 5 seconds. This means LHT65N is in Deep Sleep Mode.
89 89  
90 -== 2.3 Example to join LoRaWAN network ==
91 +== Example to join LoRaWAN network ==
91 91  
92 92  (% class="wikigeneratedid" %)
93 93  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.
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98 98  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:
99 99  
100 100  
101 -=== 2.3.1 Step 1: Create Device n TTN ===
102 +=== **Step 1**: Create Device n TTN ===
102 102  
103 103  Create a device in TTN V3 with the OTAA keys from LHT65N.
104 104  
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128 128  [[image:image-20220522233118-7.png]]
129 129  
130 130  
131 -=== 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. ===
132 132  
133 133  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.
134 134  
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135 135  [[image:image-20220522233300-8.png]]
136 136  
137 137  
138 -== 2.4 Uplink Payload ==
139 +== Uplink Payload: ==
139 139  
140 140  The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and(% class="mark" %) every 20 minutes(%%) send one uplink by default.
141 141  
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142 142  After each uplink, the (% class="mark" %)BLUE LED(%%) will blink once.
143 143  
144 144  
145 -(% border="1" style="width:572px" %)
146 +(% style="width:572px" %)
146 146  |(% 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**
147 147  |(% style="width:106px" %)**Value**|(% style="width:71px" %)[[BAT>>path:#Battery]]|(% style="width:128px" %)(((
148 148  [[Built-In>>path:#SHT20_Temperature]]
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265 265  [[Time Stamp>>path:#Unix_Time_Stamp]]
266 266  )))
267 267  
268 -* **Battery status & **[[(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)**Built-in Humidity**>>path:#SHT20_Humidity]]
269 +* **Battery status & **[[(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)**Built-in Humidity**>>path:#SHT20_Humidity]]
269 269  
270 270  (% style="width:587px" %)
271 271  |Bit(bit)|(% style="width:280px" %)[15:14]|(% style="width:136px" %)[11:0]
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648 648  * 0xA800     à AT+PID=0
649 649  * 0xA801     à AT+PID=1
650 650  
652 +
651 651  == Set Password ==
652 652  
653 653  Feature: Set device password, max 9 digits
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700 700  
701 701  * There is no downlink command to set to Sleep mode.
702 702  
705 +
703 703  == Set system time ==
704 704  
705 705  Feature: Set system time, unix format. [[See here for format detail.>>path:#TimeStamp]]
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863 863  * Example: 0xA301 ~/~/Same as AT+CLRDTA
864 864  
865 865  
869 +
866 866  = Battery & How to replace =
867 867  
868 868  == Battery Type ==

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