LHT65N-PIR Temperature/Humidity/PIR Motion Sensor User Manual

The Dragino (% style="color:blue" %)**LHT65N-PIR Temperature, Humidity & PIR 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 PIR Probe**(%%)**.** LHT65N-PIR can detect environment Temperature & Humdity, it also detects (% style="color:blue" %)**People Activity**(%%) via PIR probe and them send these info to LoRaWAN IoT Server.

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The LHT65N-PIR 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-PIR has a (% style="color:blue" %)**built-in 2400mAh non-chargeable battery**(%%) which can be used for more than 5 years*.

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LHT65N-PIR supports (% style="color:blue" %)**wireless configure & OTA update**(%%) which make user easy to use.

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LHT65N-PIR 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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**~*~***The actual battery life depends on how often to send data, please see battery analyzer chapter.

== 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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* Support wireless OTA update firmware

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* Firmware upgradeable via program port

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* Built-in 2400mAh battery for up to 5 years of use.

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* Built-in Temperature & Humidity sensor

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* External PIR Sensor

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* Tri-color LED to indicate working status

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(% style="display:none" %)

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== 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: < 0.02 °C/yr

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* Operating Range: 0 ~~ 96 %RH

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

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* Base on RDB223 Sensor

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* Cable Length : 1 meter

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* Stable detect distance : 0~~3 meter

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= 2. Connect LHT65N-PIR to IoT Server =

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

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

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If LHT65N-PIR is within the coverage of this LoRaWAN network. LHT65N-PIR can join the LoRaWAN network automatically. After successfully joining, LHT65N-PIR will start to measure environment temperature, humidity & people activity, 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-PIR? ==

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The LHT65N-PIR has two working modes:

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

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* (% style="color:blue" %)**Working Mode**(%%): In this mode, LHT65N-PIR 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-PIR will be in STOP mode (IDLE mode), in STOP mode, the PIR sensor is still working to detect people activity in low power consumption.

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The LHT65N-PIR 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:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N-E5%20LoRaWAN%20Temperature_Humidity%20%26%20Illuminance%20Sensor%20User%20Manual/WebHome/image-20220515123819-1.png?width=317&height=379&rev=1.1||alt="image-20220515123819-1.png" 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:#D9E2F3;color:#0070C0" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)**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-PIR is already Joined to rhe LoRaWAN network, LHT65N-PIR will send an uplink packet, if LHT65N-PIR has external sensor connected,(% style="color:blue" %)**Blue led** (%%)will blink once. If LHT65N-PIR 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-PIR 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-PIR 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-20230409080812-1.png||height="487" width="785"]]

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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-PIR. Next we need to add the LHT65N-PIR device in TTN V3:

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

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

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

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[[image:image-20230426083533-1.png||height="286" width="616"]]

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

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Add APP EUI in the application.

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220522232916-3.png||_mstalt="430495"]]

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N-E5%20LoRaWAN%20Temperature_Humidity%20%26%20Illuminance%20Sensor%20User%20Manual/WebHome/image-20220522232932-4.png?rev=1.1||alt="image-20220522232932-4.png"]]

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N-E5%20LoRaWAN%20Temperature_Humidity%20%26%20Illuminance%20Sensor%20User%20Manual/WebHome/image-20220522232954-5.png?rev=1.1||alt="image-20220522232954-5.png"]]

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(% style="color:red" %)**Note: LHT65N-PIR use same payload decoder as LHT65.**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N-E5%20LoRaWAN%20Temperature_Humidity%20%26%20Illuminance%20Sensor%20User%20Manual/WebHome/image-20220522233026-6.png?rev=1.1||alt="image-20220522233026-6.png"]]

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**Input APP EUI, APP KEY and DEV EUI:**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N-E5%20LoRaWAN%20Temperature_Humidity%20%26%20Illuminance%20Sensor%20User%20Manual/WebHome/image-20220522233118-7.png?rev=1.1||alt="image-20220522233118-7.png"]]

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=== 2.3.2 Step 2: Activate LHT65N-PIR by pressing the ACT button for more than 5 seconds. ===

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Use ACT button to activate LHT65N-PIR 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:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N-E5%20LoRaWAN%20Temperature_Humidity%20%26%20Illuminance%20Sensor%20User%20Manual/WebHome/image-20220522233300-8.png?rev=1.1||alt="image-20220522233300-8.png"]]

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== 2.4 Uplink Payload~-~-Device Status, (Fport~=5) ==

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Users can use the downlink command(**0x26 01**) to ask LHT65N-PIR to send device configure detail, include device configure status. LHT65N-PIR will uplink a payload via FPort=5 to server.

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The Payload format is as below.

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

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|(% colspan="6" style="background-color:#d9e2f3; color:#0070c0" %)**Device Status (FPORT=5)**

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|(% style="background-color:#f2f2f2; width:103px" %)**Size (bytes)**|(% style="background-color:#f2f2f2; width:72px" %)**1**|(% style="background-color:#f2f2f2" %)**2**|(% style="background-color:#f2f2f2; width:91px" %)**1**|(% style="background-color:#f2f2f2; width:86px" %)**1**|(% style="background-color:#f2f2f2; width:44px" %)**2**

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|(% style="background-color:#f2f2f2; width:103px" %)**Value**|(% style="background-color:#f2f2f2; width:72px" %)Sensor Model|(% style="background-color:#f2f2f2" %)Firmware Version|(% style="background-color:#f2f2f2; width:91px" %)Frequency Band|(% style="background-color:#f2f2f2; width:86px" %)Sub-band|(% style="background-color:#f2f2f2; width:44px" %)BAT

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Example parse in TTNv3

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[[image:image-20230508151932-1.png]]

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(% style="color:blue" %)**Sensor Model**(%%): For LHT65N-PIR, this value is 0x1A

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(% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version

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(% style="color:blue" %)**Frequency Band**:

*0x01: EU868

*0x02: US915

*0x03: IN865

*0x04: AU915

*0x05: KZ865

*0x06: RU864

*0x07: AS923

*0x08: AS923-1

*0x09: AS923-2

*0x0a: AS923-3

*0x0b: CN470

*0x0c: EU433

*0x0d: KR920

*0x0e: MA869

(% style="color:blue" %)**Sub-Band**:

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AU915 and US915: value 0x00 ~~ 0x08

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CN470: value 0x0B ~~ 0x0C

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Other Bands: Always 0x00

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(% style="color:blue" %)**Battery Info**:

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Check the battery voltage.

Ex1: 0x0B45 = 2885mV

Ex2: 0x0B49 = 2889mV

== 2.5 Uplink Payload, Sensor Data ( 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:#D9E2F3;color:#0070C0" %)(((

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**Size(bytes)**

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)))|=(% style="width: 30px;background-color:#D9E2F3;color:#0070C0" %)(((

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**2**

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)))|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)(((

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**2**

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)))|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)(((

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**2**

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)))|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((

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**1**

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)))|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((

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**4**

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)))

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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="H2.5.2BAT-BatteryInfo"]]

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

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(((

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[[Built-In Temperature>>||anchor="H2.5.3Built-inTemperature"]]

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)))

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

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(((

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[[Built-in Humidity>>||anchor="H2.5.4Built-inHumidity"]]

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)))

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

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Ext #

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)))|(% style="width:51px" %)(((

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[[Ext value>>||anchor="H2.5.5Extvalue"]]

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

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* The 7th byte (EXT #): defines the external sensor model. It can be 0x0A for LHT65N-PIR

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* The 8^^th^^ byte: Alarm Bit (if this uplink is from periodically or movement)

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* The 9^^th^^ ~~ 11^^st^^ byte: Movement Detect Count.

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=== 2.5.1 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-PIR decoder in TTNv3 for friendly reading.

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Below is the position to put the decoder and LHT65N-PIR 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:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220522234118-10.png||_mstalt="451464" height="353" width="729"]]

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=== 2.5.2 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:#D9E2F3;color:#0070C0" %)(((

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**Bit(bit)**

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)))|=(% style="width: 253px;background-color:#D9E2F3;color:#0070C0" %)[15:14]|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)[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" %)Actually BAT voltage

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220522235639-1.png||_mstalt="431392" height="139" width="727"]]

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Check the battery voltage for LHT65N-PIR.

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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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=== 2.5.3 Built-in Temperature ===

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220522235639-2.png||_mstalt="431756" height="138" width="722"]]

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* Temperature: 0x0ABB/100=27.47℃

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220522235639-3.png||_mstalt="432120"]]

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

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=== 2.5.4 Built-in Humidity ===

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220522235639-4.png||_mstalt="432484" height="138" width="722"]]

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* Humidity: 0x025C/10=60.4%

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=== 2.5.5 Ext value ===

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==== 2.5.5.1 Ext~=0x0E, PIR Sensor ====

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[[image:ext=14.png||alt="image-20221224161634-2.png"]]

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==== 2.5.5.2 Ext Value ====

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There are 4 bytes in Ext Value field.

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Bit0 of byte 8th shows if this uplink is generate by PIR activity.

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:393px" %)

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|=(% style="width: 107px; background-color:#D9E2F3;color:#0070C0" %)(((

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**The 8^^th^^ byte**

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)))|=(% style="width: 73px; background-color:#D9E2F3;color:#0070C0" %)(((

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**Bit 1~~7**

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)))|=(% style="width: 213px; background-color:#D9E2F3;color:#0070C0" %)(((

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**Bit 0**

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)))

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|(% style="width:106px" %)(((

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**Value**

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)))|(% style="width:71px" %)(((

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Reserve

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)))|(% style="width:211px" %)(((

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(((

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0: Normal Uplink

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1: Uplink by activity detected

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(% style="color:red" %)**Note**:** Uplink by activity is disable by default.**

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The 9^^th^^ ~~ 11^^st^^ byte: Movement Detect Count.

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0x00 E5 09 : Total detect 58633 activity since end node start.

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== 2.6 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.

Add Datacake:

[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220523000825-7.png||_mstalt="429884" height="262" width="583"]]

Select default key as Access Key:

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@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:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20221224161935-5.png||height="523" width="409"]]

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20221224161957-6.png||height="306" width="852"]]

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== 2.7 LED Indicator ==

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The LHT65N-PIR has a triple color LED which for easy showing different stage .

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

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In a normal working state:

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

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(% style="color:blue" %)**BLUE LED**(%%) when external sensor is connected.

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* (% style="color:red" %)**RED LED**(%%) when external sensor is not connected

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* For each success downlink, the (% style="color:purple" %)**PURPLE LED**(%%) will blink once

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== 2.8 installation ==

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~1. Don't install LHT65N-PIR outdoor or place where will get wet.

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2. Towards the PIR probe to the place where need to monitor activity. Below is the detect beam.

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Stable distance is 0~~3m. Some motion might not detected between 3~~5 m.

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[[image:image-20230411135341-1.png||height="450" width="456"]]

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(% style="color:red" %)**Notice: PIR can only detect motion activity, not to use to detect static people case.**

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* 1. PIR Motion Detector should not be installed near the Air conditioner places where with cold wind or hot wind flow, because PIR motion detector is sensitive with the temperature changes of the environment. Environment changes quickly will cause a false alarm.

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* 2. PIR should not be installed facing the glass window, facing glass window will be interfered by the outside sunlight and moving objects (people or vehicle). The infrared energy can penetrate the glass window.

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* 3. PIR should not be installed facing the moving objects or background changing objects, movement object will cause airflow change, it may cause false alarm.

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* 4. Between the detection range of PIR Motion detector, there is should be less objects. Many objects may reduce the sensitive of detection range.

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* 5. Do not install more than one (2 or above) Wireless PIR in the same detection space (like at the same room).

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= 3. Sensors and Accessories =

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== 3.1 E2 Extension Cable ==

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220619092222-1.png||_mstalt="429533" height="182" width="188"]][[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220619092313-2.png||_mstalt="430222" height="182" width="173"]]

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

* (((

Use for AT Command

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* (((

Update firmware for LHT65N-PIR

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)))

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220619092421-3.png||_mstalt="430547" height="371" width="529"]]

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= 4. Configure LHT65N-PIR =

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== 4.1 Configure Methods: ==

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LHT65N-PIR supports below configure method:

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* AT Command via UART Connection : See [[FAQ>>||anchor="H7.FAQ"]].

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* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>url:http://wiki.dragino.com/xwiki/bin/view/Main/]] section.

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== 4.2 General Commands ==

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These commands are to configure:

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* General system settings like: uplink interval.

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* LoRaWAN protocol & radio related command.

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They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:

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[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]

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== 4.3 Commands special design for LHT65N-PIR ==

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These commands only valid for LHT65N-PIR, as below:

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=== 4.3.1 Set Transmit Interval Time ===

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Feature: Change LoRaWAN End Node Transmit Interval.

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

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(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:501px" %)

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|(% style="background-color:#d9e2f3; color:#0070c0; width:155px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:166px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:180px" %)**Response**

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

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

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

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

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

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

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

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=== 4.3.2 Get Device Status ===

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Send a LoRaWAN downlink to ask device send Alarm settings.

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* (% style="color:#4f81bd" %)**Downlink Payload**(%%)**: **0x26 01

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Sensor will upload Device Status via FPORT=5. See payload section for detail.

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=== 4.3.3 Set Password ===

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Feature: Set device password, max 9 digits

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

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(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:372px" %)

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|(% style="background-color:#d9e2f3; color:#0070c0; width:155px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:128px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:89px" %)**Response**

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|(% style="width:155px" %)AT+PWORD=?|(% style="width:124px" %)Show password|(% style="width:86px" %)(((

123456

OK

)))

|(% style="width:155px" %)AT+PWORD=999999|(% style="width:124px" %)Set password|(% style="width:86px" %)OK

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

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No downlink command for this feature.

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=== 4.3.4 Set to sleep mode ===

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Feature: Set device to sleep mode

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* (% style="color:#037691" %)**AT+Sleep=0**(%%) : Normal working mode, device will sleep and use lower power when there is no LoRa message

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* (% style="color:#037691" %)**AT+Sleep=1**(%%) : Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.

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

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(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:513px" %)

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|(% style="background-color:#d9e2f3; color:#0070c0; width:155px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:140px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:218px" %)**Response**

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

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Clear all stored sensor data…

OK

)))

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

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

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=== 4.3.5 Set UOA (Uplink on Activity) ===

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Feature: Enable / Disable Uplink on Activity

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

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* (% style="color:#037691" %)**AT+UOA=0**(%%) : Disable UoA

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* (% style="color:#037691" %)**AT+UOA=1,2**(%%) : Enable UoA , Calm Down Time: 2 minutes. If device already send a uplink on activity, it will not send another uplink on activiy in 2 minutes, even detect activity.

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(% style="color:red" %)**Notice: Calm Down time range is 1 ~~ 65535 minutes. If user set Calm Down time to low value, such as 1 minute, the sensor might send uplink very frequenctly and battery drain fast.**

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

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Format: Command Code (0xA1) followed by 1 byte or 3 bytes.

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When followed by 3 bytes, the first byte is 01, and the second and third bytes are Calm Down Time.

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* (% style="color:#037691" %)**A1 00 (%%) ==> AT+UOA=0 **

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* (% style="color:#037691" %)**A1 01 00 02 (%%) ==> AT+UOA=1,2**

= 5. Battery & Power Consumption =

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LHT65N-PIR use **CR17450** battery pack. See below link for detail information about the battery info and how to replace.

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[[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .

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= 6. OTA firmware update =

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User can change firmware LHT65N-PIR to:

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* Change Frequency band/ region.

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* Update with new features.

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* Fix bugs.

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Firmware and changelog can be downloaded from : **[[Firmware download link>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]**

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Methods to Update Firmware:

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* (Recommanded way) OTA firmware update via wireless: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]

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* Update through UART TTL interface. **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.

= 7. FAQ =

== 7.1 How to use AT Command? ==

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LHT65N-PIR supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to connect to LHT65 for using AT command, as below.

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220615153355-1.png||_mstalt="430222"]]

[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@1655802313617-381.png||_mstalt="293917"]]

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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-PIR. 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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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]

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== 7.2 Where to use AT commands and Downlink commands ==

**AT commands：**

[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@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:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]

(% style="color:blue" %)**Helium：**

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@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:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220615094850-6.png||_mstalt="433082"]]

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]

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

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]

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== 7.3 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:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]

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== 7.4 How to use TTL-USB to connect PC to upgrade firmware? ==

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220615153355-1.png||_mstalt="430222"]]

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(% style="color:blue" %)**Step1**(%%): Install TremoProgrammer first.

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220615170542-5.png||_mstalt="430638"]]

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(% _mstmutation="1" style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)

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First connect the four lines；(% style="display:none" %)

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220621170938-1.png||_mstalt="431340" height="413" width="419"]]，(% style="display:none" %)

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Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220621170938-2.png||_mstalt="431704"]]

(% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220615171334-6.png||_mstalt="431028"]]

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Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.

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When this interface appears, it indicates that the download has been completed.

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[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220620160723-8.png||_mstalt="430703"]]

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Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.

[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]

= 8. Order Info =

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

741

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

742

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

743

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

744

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

745

* (% 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

= 9. Packing Info =

**Package Includes**:

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* LHT65N-PIR Temperature/Humidity/PIR Sensor x 1

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= 10. Reference material =

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

= 11. 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-PIR Temperature/Humidity/PIR Motion Sensor User Manual

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