LHT65N-E5 -- LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual

The Dragino (% style="color:blue" %)**LHT65N-E5 Temperature, Humidity & Illuminance sensor**(%%) is a Long Range LoRaWAN Sensor.It includes a (% style="color:blue" %)**built-in Temperature & Humidity sensor**(%%) and has an (% style="color:blue" %)**external Illuminance **(%%)** (% style="color:blue" %)sensor(%%).**

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The LHT65N-E5 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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LHT65N-E5 has a (% style="color:blue" %)**built-in 2400mAh non-chargeable battery**(%%) which can be used for more than 10 years*.

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LHT65N-E5 is fully compatible with (% style="color:blue" %)**LoRaWAN v1.0.3 Class A protocol**(%%), it can work with a standard LoRaWAN gateway.

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(% style="color:blue" %)*(%%)** **The actual battery life depends on how often to send data, please see battery analyzer chapter.

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(% style="display:none" %) (%%)

== 1.2 Features ==

* LoRaWAN v1.0.3 Class A protocol

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* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915

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* AT Commands to change parameters

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* Remote configure parameters via LoRaWAN Downlink

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* Firmware upgradeable via program port

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* Built-in 2400mAh battery for up to 10 years of use.

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* Built-in Temperature & Humidity sensor

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* External Illuminance Sensor

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* Tri-color LED to indicate working status

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* Datalog feature to save sensor data when no LoRaWAN network

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(% style="display:none" %)

== 1.3 Specification ==

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(% style="color:#037691" %)**Built-in Temperature Sensor:**

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* Resolution: 0.01 °C

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* Accuracy Tolerance : Typ ±0.3 °C

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* Long Term Drift: < 0.02 °C/yr

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* Operating Range: -40 ~~ 85 °C

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(% style="color:#037691" %)**Built-in Humidity Sensor:**

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* Resolution: 0.04 %RH

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* Accuracy Tolerance : Typ ±3 %RH

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* Long Term Drift: < 0.25 RH/yr

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* Operating Range: 0 ~~ 96 %RH

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(% style="color:#037691" %)**External IIIuminace Sensor:**

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* Base on BH1750 Illumination Sensor

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* Cable Length : 50cm

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* Resolution: 1 lx

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* Range: 0-65535 lx

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* Operating Range: -40 °C ~~ 85 °C

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= 2. Connect LHT65N-E5 to IoT Server =

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== 2.1 How does LHT65N-E5 work? ==

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LHT65N-E5 is configured as LoRaWAN OTAA Class A sensor by default. Each LHT65N-E5 is shipped with a worldwide unique set of OTAA keys. To use LHT65N-E5 in a LoRaWAN network, first, we need to put the OTAA keys in LoRaWAN Network Server and then activate LHT65N-E5.

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If LHT65N-E5 is within the coverage of this LoRaWAN network. LHT65N-E5 can join the LoRaWAN network automatically. After successfully joining, LHT65N-E5 will start to measure environment temperature, humidity & illumination, and start to transmit sensor data to the LoRaWAN server. The default period for each uplink is 20 minutes.

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== 2.2 How to Activate LHT65N-E5? ==

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The LHT65N-E5 has two working modes:

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(% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65N-E5 doesn't have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.

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* (((

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(% style="color:blue" %)**Working Mode**(%%): In this mode, LHT65N-E5 works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65N-E5 will be in STOP mode (IDLE mode), in STOP mode, LHT65N-E5 has the same power consumption as Deep Sleep mode.

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The LHT65N-E5 is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:

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[[image:image-20220515123819-1.png||_mstalt="430742" height="379" width="317"]]

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

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|=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 226px;background-color:#4F81BD;color:white" %)**Action**

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|(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT between 1s < time < 3s|(% style="background-color:#f2f2f2; width:117px" %)Test uplink status|(% style="background-color:#f2f2f2; width:225px" %)(((

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If LHT65N-E5 is already Joined to rhe LoRaWAN network, LHT65N-E5 will send an uplink packet, if LHT65N-E5 has external sensor connected,(% style="color:blue" %)**Blue led** (%%)will blink once. If LHT65N-E5 has not external sensor, (% style="color:red" %)**Red led**(%%) will blink once.

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|(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT for more than 3s|(% style="background-color:#f2f2f2; width:117px" %)Active Device|(% style="background-color:#f2f2f2; width:225px" %)(((

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(% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will fast blink 5 times, LHT65N-E5 will enter working mode and start to JOIN LoRaWAN network.

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(% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after join in network.

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|(% style="background-color:#f2f2f2; width:167px" %)Fast press ACT 5 times.|(% style="background-color:#f2f2f2; width:117px" %)Deactivate Device|(% style="background-color:#f2f2f2; width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means LHT65N-E5 is in Deep Sleep Mode.

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== 2.3 Example to join LoRaWAN network ==

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(% class="wikigeneratedid" %)

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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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(% class="wikigeneratedid" %)

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[[image:image-20221224101636-1.png||height="435" width="715"]]

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Assume the LPS8v2 is already set to connect to [[TTN V3 network>>url:https://eu1.cloud.thethings.network||_mstvisible="2"]], So it provides network coverage for LHT65N-E5. Next we need to add the LHT65N-E5 device in TTN V3:

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=== 2.3.1 Step 1: Create Device in TTN ===

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Create a device in TTN V3 with the OTAA keys from LHT65N-E5.

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Each LHT65N-E5 is shipped with a sticker with its device EUI, APP Key and APP EUI as below:

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[[image:image-20230426083358-1.png]]

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User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:

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(% style="color:blue" %)**1. Create application**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111048-1.png?width=1001&height=183&rev=1.1||alt="image-20240907111048-1.png"]]

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111305-2.png?width=1000&height=572&rev=1.1||alt="image-20240907111305-2.png"]]

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(% style="color:blue" %)**2. Add devices to the created Application.**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111659-3.png?width=977&height=185&rev=1.1||alt="image-20240907111659-3.png"]]

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111820-5.png?width=975&height=377&rev=1.1||alt="image-20240907111820-5.png"]]

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(% style="color:blue" %)**3. Enter end device specifics manually.**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112136-6.png?width=697&height=687&rev=1.1||alt="image-20240907112136-6.png"]]

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112427-7.png?rev=1.1||alt="image-20240907112427-7.png"]]

=== 2.3.2 Step 2: Add decoder ===

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In TTN, user can add a custom payload so it shows friendly reading.

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Click this link to get the decoder: [[LHT65N-E5 decoder>>url:https://github.com/dragino/dragino-end-node-decoder/tree/main/LHT65N]].

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Below is TTN screen shot.

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[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LWL04--LoRaWAN_Water_Leak_Sensor_User_Manual/WebHome/image-20240909162501-5.png?width=1084&height=516&rev=1.1||alt="image-20240909162501-5.png"]]

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[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LWL04--LoRaWAN_Water_Leak_Sensor_User_Manual/WebHome/image-20240909162647-6.png?width=1086&height=494&rev=1.1||alt="image-20240909162647-6.png"]]

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=== 2.3.3 Step 3: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===

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Use ACT button to activate LHT65N-E5 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.

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[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220522233300-8.png?width=722&height=219&rev=1.1||alt="image-20220522233300-8.png"]]

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== 2.4 Uplink Payload ( Fport~=2) ==

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The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.

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After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:390px" %)

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|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((

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**Size(bytes)**

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)))|=(% style="width: 30px;background-color:#4F81BD;color:white" %)(((

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**2**

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)))|=(% style="width: 100px;background-color:#4F81BD;color:white" %)(((

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**2**

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**2**

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**1**

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**4**

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|(% style="width:97px" %)(((

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Value

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)))|(% style="width:39px" %)(((

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[[BAT>>||anchor="H2.4.2BAT-BatteryInfo"]]

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)))|(% style="width:100px" %)(((

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[[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]

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)))|(% style="width:77px" %)(((

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[[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]

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)))|(% style="width:47px" %)(((

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Ext #

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[[Ext value>>||anchor="H2.4.5Extvalue"]]

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* The First 6 bytes: has fix meanings for every LHT65N-E5.

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* The 7th byte (EXT #): defines the external sensor model. It can be 0x05 or 0x09 for LHT65N-E5

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* The 8^^th^^ ~~ 9^^th^^ byte: Illuminance. Range: 0-65535 lx.

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* The 10th ~~ 11th byte: Reserve, always 0xFFFF

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=== 2.4.1 Decoder in TTN V3 ===

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When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65N-E5 decoder in TTNv3 for friendly reading.

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Below is the position to put the decoder and LHT65N-E5 decoder can be download from here: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]

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[[image:image-20220522234118-10.png||_mstalt="451464" height="353" width="729"]]

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=== 2.4.2 BAT-Battery Info ===

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These two bytes of BAT include the battery state and the actually voltage

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:477px" %)

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|=(% style="width: 69px; background-color:#4F81BD;color:white" %)(((

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**Bit(bit)**

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)))|=(% style="width: 253px;background-color:#4F81BD;color:white" %)[15:14]|=(% style="width: 155px;background-color:#4F81BD;color:white" %)[13:0]

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|(% style="width:66px" %)(((

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Value

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BAT Status

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00(b): Ultra Low ( BAT <= 2.50v)

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01(b): Low (2.50v <=BAT <= 2.55v)

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10(b): OK (2.55v <= BAT <=2.65v)

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11(b): Good (BAT >= 2.65v)

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)))|(% style="width:152px" %)Actually BAT voltage

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[[image:image-20220522235639-1.png||_mstalt="431392" height="139" width="727"]]

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Check the battery voltage for LHT65N-E5.

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* BAT status=(0Xcba4>>14)&0xFF=11(B)，very good

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* Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV

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=== 2.4.3 Built-in Temperature ===

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[[image:image-20220522235639-2.png||_mstalt="431756" height="138" width="722"]]

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* Temperature: 0x0ABB/100=27.47℃

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[[image:image-20220522235639-3.png||_mstalt="432120"]]

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* Temperature: (0xF5C6-65536)/100=-26.18℃

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=== 2.4.4 Built-in Humidity ===

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[[image:image-20220522235639-4.png||_mstalt="432484" height="138" width="722"]]

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* Humidity: 0x025C/10=60.4%

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=== 2.4.5 Ext value ===

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==== 2.4.5.1 Ext~=0x05, Illuminance Sensor ====

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[[image:image-20221224161634-2.png||height="138" width="851"]]

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* Illumination=0x005E=94 lux

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The last 2 bytes of data are meaningless

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[[image:image-20221224161725-3.png]]

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* When the sensor is not connected or not connected properly, will show "NULL"

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The last 2 bytes of data are meaningless

==== 2.4.5.2 Ext~=0x85, E5 sensor with Unix Timestamp ====

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Timestamp mode is designed for LHT65N-E5 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:

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)

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|=(% style="width: 50px;background-color:#4F81BD;color:white" %)(((

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**Size(bytes)**

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)))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((

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**2**

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)))|=(% style="width: 120px;background-color:#4F81BD;color:white" %)(((

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**2**

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**2**

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)))|=(% style="width: 50px;background-color:#4F81BD;color:white" %)(((

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**1**

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)))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((

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**4**

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|(% style="width:110px" %)(((

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Value

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External temperature

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)))|(% style="width:99px" %)(((

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[[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]

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)))|(% style="width:132px" %)(((

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BAT Status &

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Illumination

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)))|(% style="width:54px" %)(((

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Status & Ext

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)))|(% style="width:64px" %)(((

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[[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]

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* **Battery status & Built-in Humidity**

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:461px" %)

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|=(% style="width: 69px;background-color:#4F81BD;color:white" %)Bit(bit)|=(% style="width: 258px;background-color:#4F81BD;color:white" %)[15:14]|=(% style="width: 134px;background-color:#4F81BD;color:white" %)[13:0]

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|(% style="width:66px" %)(((

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Value

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)))|(% style="width:250px" %)(((

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BAT Status

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00(b): Ultra Low ( BAT <= 2.50v)

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01(b): Low (2.50v <=BAT <= 2.55v)

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10(b): OK (2.55v <= BAT <=2.65v)

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11(b): Good (BAT >= 2.65v)

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)))|(% style="width:152px" %)Illumination

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* **Status & Ext Byte**

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)

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|(% style="background-color:#4f81bd; color:white; width:60px" %)**Bits**|(% style="background-color:#4f81bd; color:white; width:90px" %)**7**|(% style="background-color:#4f81bd; color:white; width:100px" %)**6**|(% style="background-color:#4f81bd; color:white; width:90px" %)**5**|(% style="background-color:#4f81bd; color:white; width:100px" %)**4**|(% style="background-color:#4f81bd; color:white; width:60px" %)**[3:0]**

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* (% style="color:blue" %)**Poll Message Flag**:(%%) 1: This message is a poll message reply, 0: means this is a normal uplink.

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* (% style="color:blue" %)**Sync time OK**: (%%) 1: Set time ok，0: N/A. After time SYNC request is sent, LHT65N-E5 will set this bit to 0 until got the time stamp from the application server.

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* (% style="color:blue" %)**Unix Time Request**:(%%) 1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N-E5 will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)

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== 2.5 Show data on Datacake ==

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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:

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(% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.

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(% style="color:blue" %)**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.

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Add Datacake:

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[[image:image-20220523000825-7.png||_mstalt="429884" height="262" width="583"]]

Select default key as Access Key:

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[[image:image-20220523000825-8.png||_mstalt="430248" height="453" width="406"]]

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In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.

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[[image:image-20221224161935-5.png||height="523" width="409"]]

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[[image:image-20221224161957-6.png||height="306" width="852"]]

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== 2.6 Datalog Feature ==

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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-E5 will store the reading for future retrieving purposes. There are two ways for IoT servers to get datalog from LHT65N-E5.

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=== 2.6.1 Ways to get datalog via LoRaWAN ===

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There are two methods:

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(% style="color:blue" %)**Method 1:** (%%)IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specified time range.

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(% style="color:blue" %)**Method 2: **(%%)Set PNACKMD=1, LHT65N-E5 will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N-E5 will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.

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(% style="color:red" %)**Note for method 2:**

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* a) LHT65N-E5 will do an ACK check for data records sending to make sure every data arrive server.

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* b) LHT65N-E5 will send data in **CONFIRMED Mode** when PNACKMD=1, but LHT65N-E5 won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if LHT65N-E5 gets a ACK, LHT65N-E5 will consider there is a network connection and resend all NONE-ACK Message.

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Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)

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[[image:image-20220703111700-2.png||_mstalt="426244" height="381" width="1119"]]

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=== 2.6.2 Unix TimeStamp ===

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LHT65N-E5 uses Unix TimeStamp format based on

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[[image:image-20220523001219-11.png||_mstalt="450450" height="97" width="627"]]

User can get this time from link: [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :

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Below is the converter example

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[[image:image-20220523001219-12.png||_mstalt="450827" height="298" width="720"]]

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So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25

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=== 2.6.3 Set Device Time ===

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(% style="color:blue" %)**There are two ways to set device's time:**

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**1. Through LoRaWAN MAC Command (Default settings)**

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User need to set SYNCMOD=1 to enable sync time via MAC command.

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Once LHT65N-E5 Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LHT65N-E5. If LHT65N-E5 fails to get the time from the server, LHT65N-E5 will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).

)))

(((

(% style="color:red" %)**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.**

)))

(((

**2. Manually Set Time**

)))

(((

User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.

)))

=== 2.6.4 Poll sensor value ===

517

518

519

User can poll sensor value based on timestamps from the server. Below is the downlink command.

520

521

(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:428px" %)

522

|(% style="background-color:#4f81bd; color:white; width:59px" %)**1byte**|(% style="background-color:#4f81bd; color:white; width:128px" %)**4bytes**|(% style="background-color:#4f81bd; color:white; width:124px" %)**4bytes**|(% style="background-color:#4f81bd; color:white; width:117px" %)**1byte**

523

|(% style="width:58px" %)31|(% style="width:128px" %)Timestamp start|(% style="width:123px" %)Timestamp end|(% style="width:116px" %)Uplink Interval

524

525

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.

526

527

For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(%%)

528

529

Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data

530

531

Uplink Internal =5s, means LHT65N-E5 will send one packet every 5s. range 5~~255s.

532

533

534

=== 2.6.5 Datalog Uplink payload ===

535

536

537

The Datalog poll reply uplink will use below payload format.

538

539

**Retrieval data payload:**

540

541

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)

542

|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((

543

**Size(bytes)**

544

)))|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 70px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 100px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 70px;background-color:#4F81BD;color:white" %)**4**

545

|(% style="width:97px" %)Value|(% style="width:123px" %)[[External sensor data>>||anchor="H2.4.5Extvalue"]]|(% style="width:108px" %)[[Built In Temperature>>||anchor="H2.4.3Built-inTemperature"]]|(% style="width:133px" %)[[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]|(% style="width:159px" %)Poll message flag & Ext|(% style="width:80px" %)[[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]

546

547

**Poll message flag & Ext:**

548

549

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)

550

|(% style="background-color:#4f81bd; color:white; width:60px" %)**Bits**|(% style="background-color:#4f81bd; color:white; width:90px" %)**7**|(% style="background-color:#4f81bd; color:white; width:100px" %)**6**|(% style="background-color:#4f81bd; color:white; width:90px" %)**5**|(% style="background-color:#4f81bd; color:white; width:100px" %)**4**|(% style="background-color:#4f81bd; color:white; width:60px" %)**[3:0]**

551

552

553

(% style="color:blue" %)**No ACK Message**(%%): 1: This message means this payload is fromn Uplink Message which doesn't get ACK from the server before ( for [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]] feature)

554

555

(% style="color:blue" %)**Poll Message Flag**(%%): 1: This message is a poll message reply.

556

557

* Poll Message Flag is set to 1.

558

559

* Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.

560

561

For example, in US915 band, the max payload for different DR is:

562

563

(% style="color:blue" %)**a) DR0:** (%%)max is 11 bytes so one entry of data

564

565

(% style="color:blue" %)**b) DR1:**(%%) max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)

566

567

(% style="color:blue" %)**c) DR2:**(%%) total payload includes 11 entries of data

568

569

(% style="color:blue" %)**d) DR3: **(%%)total payload includes 22 entries of data.

570

571

If devise doesn't have any data in the polling time. Device will uplink 11 bytes of 0

**Example:**

If LHT65N-E5 has below data inside Flash:

577

578

(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)

579

|=(% style="width: 88px; background-color:#4F81BD;color:white" %)Flash Add|=(% style="width: 132px; background-color:#4F81BD;color:white" %)**Unix Time**|=(% style="width: 40px; background-color:#4F81BD;color:white" %)**Ext**|=(% style="width: 105px; background-color:#4F81BD;color:white" %)**BAT voltage**|=(% style="width: 145px; background-color:#4F81BD;color:white" %)**Value**

If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705

590

591

Where : Start time: 60065F97 = time 21/1/19 04:27:03

592

593

Stop time: 60066DA7= time 21/1/19 05:27:03

594

595

596

**LHT65N-E5 will uplink this payload.**

597

598

[[image:image-20220523001219-13.png||_mstalt="451204" height="421" style="text-align:left" width="727"]]

599

600

601

__**7FFF089801464160065F97**__ **__7FFF__ __088E__ __014B__ __41__ __60066009__** 7FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E

602

603

Where the first 11 bytes is for the first entry:

604

605

7FFF089801464160065F97

606

607

Ext sensor data=0x7FFF/100=327.67

608

609

Temp=0x088E/100=22.00

Hum=0x014B/10=32.6

poll message flag & Ext=0x41,means reply data,Ext=1

614

615

Unix time is 0x60066009=1611030423s=21/1/19 04:27:03

== 2.7 Alarm Mode ==

(((

when the device is in alarm mode, it checks the built-in sensor temperature for a short time. if the temperature exceeds the preconfigured range, it sends an uplink immediately.

)))

(((

(% style="color:red" %)**Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.**

)))

=== 2.7.1 ALARM MODE ===

633

634

635

(% class="box infomessage" %)

636

(((

637

(((

638

**AT+WMOD=1**: Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)

)))

(((

**AT+CITEMP=1**: The interval between checking the alarm temperature. (In minutes)

)))

(((

**AT+ARTEMP**: Gets or sets the alarm range of the internal temperature sensor

)))

(((

(% _mstmutation="1" %)**AT+ARTEMP=？ **(%%): Gets the alarm range of the internal temperature sensor(% style="display:none" %)

)))

(((

**AT+ARTEMP=45,105**: Set the internal temperature sensor alarm range from 45 to 105.

)))

)))

(% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**

Total bytes: 8 bytes

**Example:**AA0100010001003C

WMOD=01

CITEMP=0001

TEMPlow=0001

TEMPhigh=003C

== 2.8 LED Indicator ==

674

675

676

The LHT65 has a triple color LED which for easy showing different stage .

677

678

While user press ACT button, the LED will work as per LED status with ACT button.

679

680

In a normal working state:

681

682

* For each uplink, the BLUE LED or RED LED will blink once.

683

BLUE LED when external sensor is connected.

684

* RED LED when external sensor is not connected

685

* For each success downlink, the PURPLE LED will blink once

686

687

== 2.9 installation ==

688

689

690

[[image:image-20220516231650-1.png||_mstalt="428597" height="436" width="428"]]

691

692

693

= 3. Sensors and Accessories =

694

695

== 3.1 E2 Extension Cable ==

696

697

698

[[image:image-20220619092222-1.png||_mstalt="429533" height="182" width="188"]][[image:image-20220619092313-2.png||_mstalt="430222" height="182" width="173"]]

699

700

701

**1m long breakout cable for LHT65N-E5. Features:**

* (((

Use for AT Command

)))

* (((

Update firmware for LHT65N-E5

708

)))

709

* (((

710

Exposed All pins from the LHT65N-E5 Type-C connector.

)))

[[image:image-20220619092421-3.png||_mstalt="430547" height="371" width="529"]]

717

718

719

= 4. Configure LHT65N-E5 via AT command or LoRaWAN downlink =

(((

Use can configure LHT65N-E5 via AT Command or LoRaWAN Downlink.

)))

* (((

AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].

)))

* (((

LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]

)))

(((

There are two kinds of commands to configure LHT65N-E5, they are:

)))

* (((

(% style="color:#4f81bd" %)**General Commands**.

)))

(((

These commands are to configure:

)))

1. (((

General system settings like: uplink interval.

748

)))

749

1. (((

750

LoRaWAN protocol & radio-related commands.

)))

(((

They are the same for all Dragino Devices which supports DLWS-005 LoRaWAN Stack(Note~*~*). These commands can be found on the wiki: [[End Device Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]

)))

* (((

(% style="color:#4f81bd" %)**Commands special design for LHT65N-E5**

)))

(((

These commands are only valid for LHT65N-E5, as below:

)))

== 4.1 Set Transmit Interval Time ==

767

768

769

Feature: Change LoRaWAN End Node Transmit Interval.

770

771

(% style="color:#4f81bd" %)**AT Command: AT+TDC**

772

773

(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:501px" %)

774

|(% style="background-color:#4f81bd; color:white; width:155px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:166px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:180px" %)**Response**

775

|(% style="width:155px" %)AT+TDC?|(% style="width:162px" %)Show current transmit Interval|(% style="width:177px" %)30000 OK the interval is 30000ms = 30s

776

|(% style="width:155px" %)AT+TDC=60000|(% style="width:162px" %)Set Transmit Interval|(% style="width:177px" %)OK Set transmit interval to 60000ms = 60 seconds

777

778

(% style="color:#4f81bd" %)**Downlink Command: 0x01**

779

780

Format: Command Code (0x01) followed by 3 bytes time value.

781

782

If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.

783

784

* **Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds

785

786

* **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds

787

788

== 4.2 Currently only supports E5 ==

789

790

791

Feature: Set device password, max 9 digits

792

793

(% style="color:#4f81bd" %)**AT Command: AT+EXT**

794

795

(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:468px" %)

796

|(% style="background-color:#4f81bd; color:white; width:155px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:153px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:160px" %)**Response**

797

|(% style="width:155px" %)AT+EXT=?|(% style="width:151px" %)Get or Set external sensor model|(% style="width:158px" %)(((

5

OK

)))

|(% style="width:155px" %)AT+EXT=5|(% colspan="2" rowspan="1" style="width:309px" %)Set external sensor mode to 5

803

804

(% style="color:#4f81bd" %)**Downlink Command:0xA2**

Total bytes: 2 bytes

**Example:**

* 0xA205: Set external sensor type to E5

812

813

== 4.3 Set to sleep mode ==

814

815

816

Feature: Set device to sleep mode

817

818

* **AT+Sleep=0** : Normal working mode, device will sleep and use lower power when there is no LoRa message

819

* **AT+Sleep=1** : Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.

820

821

(% style="color:#4f81bd" %)**AT Command: AT+SLEEP**

822

823

(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:513px" %)

824

|(% style="background-color:#4f81bd; color:white; width:155px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:140px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:218px" %)**Response**

825

|(% style="width:155px" %)AT+SLEEP|(% style="width:139px" %)Set to sleep mode|(% style="width:213px" %)(((

826

Clear all stored sensor data…

OK

)))

(% style="color:#4f81bd" %)**Downlink Command:**

832

833

* There is no downlink command to set to Sleep mode.

834

835

== 4.4 Set system time ==

836

837

838

Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]

839

840

(% style="color:#4f81bd" %)**AT Command:**

841

842

(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:506px" %)

843

|(% style="background-color:#4f81bd; color:white; width:188px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:318px" %)**Function**

844

|(% style="width:154px" %)AT+TIMESTAMP=1611104352|(% style="width:285px" %)(((

845

OK

846

847

Set System time to 2021-01-20 00:59:12

848

)))

849

850

(% style="color:#4f81bd" %)**Downlink Command:**

851

852

0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352

853

854

855

== 4.5 Set Time Sync Mode ==

(((

Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.

)))

(((

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.

864

)))

865

866

(% style="color:#4f81bd" %)**AT Command:**

867

868

(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:475px" %)

869

|(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:317px" %)**Function**

870

|(% style="width:156px" %)AT+SYNCMOD=1|(% style="width:315px" %)Enable Sync system time via LoRaWAN MAC Command (DeviceTimeReq)

871

872

(% style="color:#4f81bd" %)**Downlink Command:**

873

874

0x28 01 ~/~/ Same As AT+SYNCMOD=1

875

0x28 00 ~/~/ Same As AT+SYNCMOD=0

876

877

878

== 4.6 Set Time Sync Interval ==

879

880

881

Feature: Define System time sync interval. SYNCTDC default value: 10 days.

882

883

(% style="color:#4f81bd" %)**AT Command:**

884

885

(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:472px" %)

886

|(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:314px" %)**Function**

887

|(% style="width:156px" %)AT+SYNCTDC=0x0A |(% style="width:311px" %)Set SYNCTDC to 10 (0x0A), so the sync time is 10 days.

888

889

(% style="color:#4f81bd" %)**Downlink Command:**

890

891

**0x29 0A** ~/~/ Same as AT+SYNCTDC=0x0A

== 4.7 Get data ==

Feature: Get the current sensor data.

898

899

(% style="color:#4f81bd" %)**AT Command:**

900

901

* **AT+GETSENSORVALUE=0** ~/~/ The serial port gets the reading of the current sensor

902

* **AT+GETSENSORVALUE=1** ~/~/ The serial port gets the current sensor reading and uploads it.

903

904

== 4.8 Print data entries base on page ==

905

906

907

Feature: Print the sector data from start page to stop page (max is 416 pages).

908

909

(% style="color:#4f81bd" %)**AT Command: AT+PDTA**

910

911

(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)

912

|(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**

913

|(% style="width:156px" %)(((

914

AT+PDTA=13

915

Print page 1 to 3

916

)))|(% style="width:311px" %)(((

917

8019500 19/6/26 16:48 1 2992 sht temp=28.21 sht hum=71.5 ds temp=27.31

918

8019510 19/6/26 16:53 1 2994 sht temp=27.64 sht hum=69.3 ds temp=26.93

919

8019520 19/6/26 16:58 1 2996 sht temp=28.39 sht hum=72.0 ds temp=27.06

920

8019530 19/6/26 17:03 1 2996 sht temp=27.97 sht hum=70.4 ds temp=27.12

921

8019540 19/6/26 17:08 1 2996 sht temp=27.80 sht hum=72.9 ds temp=27.06

922

8019550 19/6/26 17:13 1 2998 sht temp=27.30 sht hum=72.4 ds temp=26.68

923

8019560 19/6/26 17:22 1 2992 sht temp=26.27 sht hum=62.3 ds temp=26.56

8019570

8019580

8019590

80195A0

80195B0

80195C0

80195D0

80195E0

80195F0

OK

)))

(% style="color:#4f81bd" %)**Downlink Command:**

938

939

No downlink commands for feature

940

941

942

== 4.9 Print last few data entries ==

943

944

945

Feature: Print the last few data entries

946

947

(% style="color:#4f81bd" %)**AT Command: AT+PLDTA**

948

949

(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)

950

|(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**

951

|(% style="width:156px" %)(((

952

AT+PLDTA=5

953

Print last 5 entries

954

)))|(% style="width:311px" %)(((

955

Stop Tx and RTP events when read sensor data

956

1 19/6/26 13:59 1 3005 sht temp=27.09 sht hum=79.5 ds temp=26.75

957

2 19/6/26 14:04 1 3007 sht temp=26.65 sht hum=74.8 ds temp=26.43

958

3 19/6/26 14:09 1 3007 sht temp=26.91 sht hum=77.9 ds temp=26.56

959

4 19/6/26 14:15 1 3007 sht temp=26.93 sht hum=76.7 ds temp=26.75

960

5 19/6/26 14:20 1 3007 sht temp=26.78 sht hum=76.6 ds temp=26.43

961

Start Tx and RTP events

OK

)))

(% style="color:#4f81bd" %)**Downlink Command:**

966

967

No downlink commands for feature

968

969

970

== 4.10 Clear Flash Record ==

971

972

973

Feature: Clear flash storage for data log feature.

974

975

(% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**

976

977

(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:503px" %)

978

|(% style="background-color:#4f81bd; color:white; width:157px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:137px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:209px" %)**Response**

979

|(% style="width:155px" %)AT+CLRDTA |(% style="width:134px" %)Clear date record|(% style="width:209px" %)(((

980

Clear all stored sensor data…

OK

)))

(% style="color:#4f81bd" %)**Downlink Command: 0xA3**

986

987

* Example: 0xA301 ~/~/ Same as AT+CLRDTA

988

989

== 4.11 Auto Send None-ACK messages ==

990

991

992

Feature: LHT65N-E5 will wait for ACK for each uplink, If LHT65N-E5 doesn't get ACK from the IoT server, it will consider the message doesn't arrive server and store it. LHT65N-E5 keeps sending messages in normal periodically. Once LHT65N-E5 gets ACK from a server, it will consider the network is ok and start to send the not-arrive message.

993

994

995

(% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**

996

997

The default factory setting is 0

998

999

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:367px" %)

1000

|=(% style="width: 158px;background-color:#4f81bd; color:white" %)**Command Example**|=(% style="width: 122px;background-color:#4f81bd; color:white" %)**Function**|=(% style="width: 87px;background-color:#4f81bd; color:white" %)**Response**

1001

|(% style="width:158px" %)AT+PNACKMD=1|(% style="width:118px" %)Poll None-ACK message|(% style="width:87px" %)OK

1002

1003

(% style="color:#4f81bd" %)**Downlink Command: 0x34**

1004

1005

* Example: 0x3401 ~/~/ Same as AT+PNACKMD=1

1006

1007

= 5. Battery & How to replace =

1008

1009

== 5.1 Battery Type ==

(((

LHT65N-E5 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.

)))

(((

The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.

1018

1019

1020

[[image:image-20220515075034-1.png||_mstalt="428961" height="208" width="644"]]

1021

)))

1022

1023

The minimum Working Voltage for the LHT65N-E5 is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.

1024

1025

1026

== 5.2 Replace Battery ==

1027

1028

1029

LHT65N-E5 has two screws on the back, Unscrew them, and changing the battery inside is ok. The battery is a general CR17450 battery (3.0v). Any brand should be ok.

1030

1031

[[image:image-20220515075440-2.png||_mstalt="429546" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" height="193" width="257"]]

1032

1033

1034

== 5.3 Battery Life Analyze ==

(((

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:

1039

[[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]

)))

(((

A full detail test report for LHT65N-E5 on different frequency can be found at : [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0>>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]

)))

= 6. FAQ =

== 6.1 How to use AT Command? ==

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Refer this link for [[UART Hardware Connection>>http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H6.1HowtoconnecttoLHT65NUARTinterface3F]].

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In PC, User needs to set serial tool(such as [[**putty**>>https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600** (%%)to access to access serial console for LHT65N-E5. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**(% style="color:red" %))(%%) to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout.

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)))

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[[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]

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AT Command List is as below:

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AT+<CMD>? : Help on <CMD>

AT+<CMD> : Run <CMD>

AT+<CMD>=<value> : Set the value

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AT+<CMD>=? : Get the value

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AT+DEBUG: Set more info output

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ATZ: Trig a reset of the MCU

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AT+FDR: Reset Parameters to Factory Default, Keys Reserve

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AT+DEUI: Get or Set the Device EUI

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1080

AT+DADDR: Get or Set the Device Address

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AT+APPKEY: Get or Set the Application Key

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AT+NWKSKEY: Get or Set the Network Session Key

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AT+APPSKEY: Get or Set the Application Session Key

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AT+APPEUI: Get or Set the Application EUI

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AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)

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AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)

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AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)

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AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing

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AT+PNM: Get or Set the public network mode. (0: off, 1: on)

1099

1100

AT+RX2FQ: Get or Set the Rx2 window frequency

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1102

AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)

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1104

AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms

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1106

AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms

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1108

AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms

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1110

AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms

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1112

AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)

1113

1114

AT+NWKID: Get or Set the Network ID

1115

1116

AT+FCU: Get or Set the Frame Counter Uplink

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1118

AT+FCD: Get or Set the Frame Counter Downlink

1119

1120

AT+CLASS: Get or Set the Device Class

1121

1122

AT+JOIN: Join network

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1124

AT+NJS: Get the join status

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1126

AT+SENDB: Send hexadecimal data along with the application port

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1128

AT+SEND: Send text data along with the application port

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AT+RECVB: Print last received data in binary format (with hexadecimal values)

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AT+RECV: Print last received data in raw format

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AT+VER: Get current image version and Frequency Band

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AT+CFM: Get or Set the confirmation mode (0-1)

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AT+CFS: Get confirmation status of the last AT+SEND (0-1)

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AT+SNR: Get the SNR of the last received packet

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AT+RSSI: Get the RSSI of the last received packet

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AT+TDC: Get or set the application data transmission interval in ms

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AT+PORT: Get or set the application port

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AT+DISAT: Disable AT commands

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AT+PWORD: Set password, max 9 digits

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AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode

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AT+CHE: Get or Set eight channels mode,Only for US915,AU915,CN470

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AT+PDTA: Print the sector data from start page to stop page

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AT+PLDTA: Print the last few sets of data

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1160

AT+CLRDTA: Clear the storage, record position back to 1st

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AT+SLEEP: Set sleep mode

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AT+EXT: Get or Set external sensor model

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AT+BAT: Get the current battery voltage in mV

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AT+CFG: Print all configurations

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AT+WMOD: Get or Set Work Mode

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AT+ARTEMP: Get or set the internal Temperature sensor alarm range

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AT+CITEMP: Get or set the internal Temperature sensor collection interval in min

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AT+SETCNT: Set the count at present

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AT+RJTDC: Get or set the ReJoin data transmission interval in min

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AT+RPL: Get or set response level

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1182

AT+TIMESTAMP: Get or Set UNIX timestamp in second

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1184

AT+LEAPSEC: Get or Set Leap Second

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1186

AT+SYNCMOD: Get or Set time synchronization method

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AT+SYNCTDC: Get or set time synchronization interval in day

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AT+PID: Get or set the PID

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1193

== 6.2 Where to use AT commands and Downlink commands ==

**AT commands：**

[[image:image-20220620153708-1.png||_mstalt="429806" height="603" width="723"]]

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**Downlink commands:**

(% style="color:blue" %)**TTN:**

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[[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]

(% style="color:blue" %)**Helium：**

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[[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]

(% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**

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[[image:image-20220615094850-6.png||_mstalt="433082"]]

1221

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1223

[[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]

(% style="color:blue" %)**Aws:**

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[[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]

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== 6.3 How to change the uplink interval？ ==

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Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]]

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[[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]

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== 6.4 How to upgrade firmware? ==

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Please check [[update instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H6.5Howtoupgradefirmware3F]].

= 7. Order Info =

Part Number: (% style="color:#4f81bd" %)** LHT65N-E5-XX**

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(% style="color:#4f81bd" %)**XX **(%%): The default frequency band

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* (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AS923**(%%): LoRaWAN AS923 band

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* (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AU915**(%%): LoRaWAN AU915 band

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* (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU433**(%%): LoRaWAN EU433 band

1257

* (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU868**(%%): LoRaWAN EU868 band

1258

* (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**KR920**(%%): LoRaWAN KR920 band

1259

* (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**US915**(%%): LoRaWAN US915 band

1260

* (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**IN865**(%%): LoRaWAN IN865 band

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* (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**CN470**(%%): LoRaWAN CN470 band

= 8. Packing Info =

**Package Includes**:

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* LHT65N-E5 Temperature/Humidity/Illuminance Sensor x 1

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= 9. Reference material =

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* [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]

= 10. FCC Warning =

This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:

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(1) This device may not cause harmful interference；

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(2) this device must accept any interference received, including interference that may cause undesired operation.

Wiki source code of LHT65N-E5 -- LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual

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