Changes for page LHT65N -- Manual do sensor de temperatura e umidade LoRaWAN

Last modified by Xiaoling on 2023/07/18 10:12

From 170.17 to 170.16 From 170.24 to 170.23

From version 170.23

edited by Xiaoling
on 2022/06/22 11:09

Change comment: There is no comment for this version

To version 170.17

edited by Xiaoling
on 2022/06/22 10:08

Change comment: There is no comment for this version

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@@ -45,9 +45,10 @@
  * Tri-color LED to indicate working status
  * Datalog feature
--== 1.3 Specification ==
++== 1.3 Specification ==
++
  **Built-in Temperature Sensor:**
  * Resolution: 0.01 °C
@@ -69,6 +69,8 @@
  * ±2°C accuracy from -55°C to +125°C
  * Operating Range: -55 °C ~~ 125 °C
++
++
  = 2. Connect LHT65N to IoT Server =
  == 2.1 How does LHT65N work? ==
@@ -85,6 +85,7 @@
  * (% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
  * (% style="color:blue" %)**Working Mode**(%%):     In this mode, LHT65N works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65N will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode.
++
  The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
@@ -102,73 +102,71 @@
  (% _mstvisible="1" class="wikigeneratedid" %)
  [[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
--
--(((
++(% _msthash="315241" _msttexthash="10802155" _mstvisible="1" %)
  Assume the LPS8N is already set to connect to [[TTN V3 network>>url:https://eu1.cloud.thethings.network||_mstvisible="2"]], So it provides network coverage for LHT65N. Next we need to add the LHT65N device in TTN V3:
--)))
++(% _mstvisible="1" %)
++=== (% _msthash="670592" _msttexthash="634075" _mstvisible="3" %)2.3.1 Step 1: Create Device n TTN(%%) ===
--=== 2.3.1 Step 1: Create Device n TTN ===
--
--(((
++(% _msthash="315242" _msttexthash="1601782" _mstvisible="1" %)
  Create a device in TTN V3 with the OTAA keys from LHT65N.
--)))
--(((
++(% _msthash="315243" _msttexthash="3694444" _mstvisible="1" %)
  Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
--)))
++(% _mstvisible="1" %)
  [[image:image-20220617150003-1.jpeg]]
++(% _msthash="315244" _msttexthash="3659149" _mstvisible="1" %)
  User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
++(% _msthash="315245" _msttexthash="642889" _mstvisible="1" %)
  Add APP EUI in the application.
--
++(% _mstvisible="1" %)
  [[image:image-20220522232916-3.png||_mstalt="430495" _mstvisible="3"]]
--
++(% _mstvisible="1" %)
  [[image:image-20220522232932-4.png||_mstalt="430157" _mstvisible="3"]]
--
++(% _mstvisible="1" %)
  [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
--
++(% _msthash="315246" _msttexthash="878800" _mstvisible="1" %)
  Note: LHT65N use same payload as LHT65.
--
++(% _mstvisible="1" %)
  [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
++(% _msthash="315247" _msttexthash="595543" _mstvisible="1" %)
  Input APP EUI,  APP KEY and DEV EUI:
--
++(% _mstvisible="1" %)
  [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
++(% _mstvisible="1" %)
++=== (% _msthash="3537456" _msttexthash="3448549" _mstvisible="3" %)2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds.(%%) ===
--=== 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
--
--(((
++(% _msthash="315248" _msttexthash="14452321" _mstvisible="1" %)
  Use ACT button to activate LHT65N and it will auto-join to the TTN V3 network. After join success, it will start to upload sensor data to TTN V3 and user can see in the panel.
--)))
++(% _mstvisible="1" %)
  [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
++(% _mstvisible="1" %)
++== (% _msthash="320879" _msttexthash="294970" _mstvisible="3" %)2.4 Uplink Payload(%%) ==
--== 2.4 Uplink Payload ==
--
--(((
++(% _msthash="315249" _msttexthash="7722962" _mstvisible="1" %)
  The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% _mstvisible="3" style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
--)))
--(((
++(% _msthash="315250" _msttexthash="1322711" _mstvisible="1" %)
  After each uplink, the (% _mstvisible="3" style="color:blue" %)**BLUE LED**(%%) will blink once.
--)))
  (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:426px" %)
  (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
@@ -234,104 +234,123 @@
  [[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
  )))
++(% _mstvisible="1" %)
  * The First 6 bytes: has fix meanings for every LHT65N.
  * The 7th byte (EXT #): defines the external sensor model.
  * The 8(% _msthash="734578" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) ~~ 11(% _msthash="734579" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) byte: the value for external sensor value. The definition is based on external sensor type. (If EXT=0, there won’t be these four bytes.)
++(% _mstvisible="1" %)
++=== (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 Decoder in TTN V3(%%) ===
--
--
--=== 2.4.1 Decoder in TTN V3 ===
--
++(% _msthash="315251" _msttexthash="9786491" _mstvisible="1" %)
  When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65N decoder in TTNv3 for friendly reading.
++(% _msthash="315252" _msttexthash="3928483" _mstvisible="1" %)
  Below is the position to put the decoder and LHT65N decoder can be download from here:
--
++(% _mstvisible="1" %)
  [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0||_msthash="315253" _msttexthash="3509064" _mstvisible="2"]]
--
++(% _mstvisible="1" %)
  [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
++(% _mstvisible="1" %)
++=== (% _msthash="411411" _msttexthash="383656" _mstvisible="3" %)2.4.2 BAT-Battery Info(%%) ===
--=== 2.4.2 BAT-Battery Info ===
--
++(% _msthash="315254" _msttexthash="3122912" _mstvisible="1" %)
  These two bytes of BAT include the battery state and the actually voltage
++(% _mstvisible="1" %)
  [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
--
++(% _mstvisible="1" %)
  [[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
--
++(% _msthash="315255" _msttexthash="871611" _mstvisible="1" %)
  Check the battery voltage for LHT65N.
++(% _mstvisible="1" %)
  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
++(% _mstvisible="1" %)
++=== (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
--
--=== 2.4.3 Built-in Temperature ===
--
++(% _mstvisible="1" %)
  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
++(% _mstvisible="1" %)
  * Temperature:  0x0ABB/100=27.47℃
++(% _mstvisible="1" %)
  [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
++(% _mstvisible="1" %)
  * Temperature:  (0xF5C6-65536)/100=-26.18℃
++(% _mstvisible="1" %)
++=== (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
--=== 2.4.4 Built-in Humidity ===
--
++(% _mstvisible="1" %)
  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
++(% _mstvisible="1" %)
  * Humidity:    0x025C/10=60.4%
++(% _mstvisible="1" %)
++=== (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) ===
--=== 2.4.5 Ext # ===
--
++(% _msthash="315256" _msttexthash="552240" _mstvisible="1" %)
  Bytes for External Sensor:
++(% _mstvisible="1" %)
  [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
++(% _mstvisible="1" %)
++=== (% _msthash="221429" _msttexthash="200655" _mstvisible="3" %)2.4.6 Ext value(%%) ===
--=== 2.4.6 Ext value ===
++(% _mstvisible="1" %)
++==== (% _msthash="1005901" _msttexthash="877578" _mstvisible="3" %)2.4.6.1 Ext~=1, E3 Temperature Sensor(%%) ====
--==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
--
--
++(% _mstvisible="1" %)
  [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
++(% _mstvisible="1" %)
  * DS18B20 temp=0x0ADD/100=27.81℃
++(% _msthash="315257" _msttexthash="1038479" _mstvisible="1" %)
  The last 2 bytes of data are meaningless
++(% _mstvisible="1" %)
  [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
++(% _mstvisible="1" %)
  * External temperature= (0xF54F-65536)/100=-27.37℃
++(% _mstvisible="1" %)
++(((
++(% _msthash="506063" _msttexthash="1038479" _mstvisible="2" %)
  The last 2 bytes of data are meaningless
++)))
++(% _mstvisible="1" %)
++(((
++(% _msthash="506064" _msttexthash="21185632" _mstvisible="2" %)
  If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
++)))
++(% _mstvisible="1" %)
++==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp(%%) ====
--==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
--
--(((
++(% _msthash="315258" _msttexthash="41539368" _mstvisible="1" %)
  Timestamp mode is designed for LHT65N with E3 probe, it will send the uplink payload with Unix timestamp. With the limitation of 11 bytes (max distance of AU915/US915/AS923 band), the time stamp mode will be lack of BAT voltage field, instead, it shows the battery status. The payload is as below:
--)))
--(((
--
--)))
--
  (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
  (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 96px;" %)(% _mstvisible="5" %)
  (((
@@ -435,18 +435,19 @@
  )))
++(% _mstvisible="1" %)
  * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
++(% _mstvisible="1" %)
  [[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
--* Poll Message Flag:    1: This message is a poll message reply, 0: means this is a normal uplink.
--* Sync time OK:           1: Set time ok，0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server.
--* Unix Time Request:  1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)
++(% _mstvisible="1" %)
++* Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
++* Sync time OK: 1: Set time ok，0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server.
++* Unix Time Request:1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)
++==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable)(%%) ====
--
--==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
--
  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
  be used to power the external ADC sensor; user can control the power on time for this
@@ -457,129 +457,188 @@
--== 2.5 Show data on Datacake ==
++(% _mstvisible="1" %)
++== (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
--(((
++(% _msthash="315259" _msttexthash="20933341" _mstvisible="1" %)
  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:
--)))
++(% _mstvisible="1" %)
  (((
--
++(% _msthash="506065" _msttexthash="4753983" _mstvisible="2" %)
++(% _mstvisible="3" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
  )))
++(% _mstvisible="1" %)
  (((
--(% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
++(% _msthash="506066" _msttexthash="14696682" _mstvisible="2" %)
++(% _mstvisible="3" %)**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.
  )))
++(% _mstvisible="1" %)
  (((
--(% 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.
--)))
--
--(((
--
--)))
--
--(((
++(% _msthash="506067" _msttexthash="180297" _mstvisible="2" %)
  Add Datacake:
  )))
--
++(% _mstvisible="1" %)
  [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
--
++(% _msthash="315260" _msttexthash="750178" _mstvisible="1" %)
  Select default key as Access Key:
--
++(% _mstvisible="1" %)
  [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
--
++(% _msthash="315261" _msttexthash="2134964" _mstvisible="1" %)
  In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
--
++(% _mstvisible="1" %)
  [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
--
++(% _mstvisible="1" %)
  [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
--== 2.6 Datalog Feature ==
++(% _mstvisible="1" %)
++== (% _msthash="350454" _msttexthash="323544" _mstvisible="3" %)2.6 Datalog Feature(%%) ==
--(((
++(% _msthash="315262" _msttexthash="32283004" _mstvisible="1" %)
  Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, LHT65N will store the reading for future retrieving purposes. There are two ways for IoT servers to get datalog from LHT65N.
--)))
++(% _mstvisible="1" %)
++=== (% _msthash="886158" _msttexthash="842426" _mstvisible="3" %)2.6.1 Ways to get datalog via LoRaWAN(%%) ===
--=== 2.6.1 Ways to get datalog via LoRaWAN ===
--
++(% _msthash="315263" _msttexthash="409604" _mstvisible="1" %)
  There are two methods:
++(% _mstvisible="1" %)
 .  IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
 .  Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will send all messages after network recover.
++(% _mstvisible="1" %)
++=== (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
--
--
--=== 2.6.2 Unix TimeStamp ===
--
--
++(% _msthash="315264" _msttexthash="1182285" _mstvisible="1" %)
  LHT65N uses Unix TimeStamp format based on
--
++(% _mstvisible="1" %)
  [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
--
++(% _mstvisible="1" %)
++(((
++(% _msthash="506068" _msttexthash="2717234" _mstvisible="2" %)
  User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
++)))
++(% _mstvisible="1" %)
++(((
++(% _msthash="506069" _msttexthash="709813" _mstvisible="2" %)
  Below is the converter example
++)))
++(% _mstvisible="1" %)
  [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
++(% _msthash="315265" _msttexthash="15137317" _mstvisible="1" %)
  So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
++(% _mstvisible="1" %)
++=== (% _msthash="359294" _msttexthash="332748" _mstvisible="3" %)2.6.3 Set Device Time(%%) ===
--=== 2.6.3 Set Device Time ===
++(% _mstvisible="1" %)
++(((
++(% _msthash="506070" _msttexthash="4521946" _mstvisible="2" %)
++There are two ways to set device’s time:
++)))
--There are two ways to set device's time:
++(% _mstvisible="1" %)
++(((
++(% _mstvisible="2" %)
++(% _msthash="506071" _msttexthash="1498471" _mstvisible="4" %)**1. Through LoRaWAN MAC Command (Default settings)**
++)))
--**~1. Through LoRaWAN MAC Command (Default settings)**
--
++(% _mstvisible="1" %)
++(((
++(% _msthash="506072" _msttexthash="2126267" _mstvisible="2" %)
  User need to set SYNCMOD=1 to enable sync time via MAC command.
++)))
++(% _mstvisible="1" %)
++(((
++(% _msthash="506073" _msttexthash="54430324" _mstvisible="2" %)
  Once LHT65N Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LHT65N. If LHT65N fails to get the time from the server, LHT65N will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
++)))
--(% 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.
++(% _mstvisible="1" %)
++(((
++(% _msthash="506074" _msttexthash="92531127" _mstvisible="2" %)
++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.
++)))
++(% _mstvisible="1" %)
++(((
++(% _mstvisible="2" %)
++
++)))
--**2. Manually Set Time**
++(% _mstvisible="1" %)
++(((
++(% _mstvisible="2" %)
++(% _msthash="506075" _msttexthash="329719" _mstvisible="4" %)**2. Manually Set Time**
++)))
++(% _mstvisible="1" %)
++(((
++(% _msthash="506076" _msttexthash="7889297" _mstvisible="2" %)
  User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
++(% _msthash="506076" _msttexthash="7889297" _mstvisible="2" %)
++
++)))
++(% _mstvisible="1" %)
++=== (% _msthash="460759" _msttexthash="430001" _mstvisible="3" %)2.6.4 Poll sensor value(%%) ===
--=== 2.6.4 Poll sensor value ===
--
++(% _msthash="315266" _msttexthash="4955821" _mstvisible="1" %)
  User can poll sensor value based on timestamps from the server. Below is the downlink command.
++(% _mstvisible="1" %)
  [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
--
++(% _mstvisible="1" %)
++(((
++(% _msthash="506077" _msttexthash="14670916" _mstvisible="2" %)
  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.
++)))
--For example, downlink command **31 5FC5F350 5FC6 0160 05**
++(% _mstvisible="1" %)
++(((
++(% _mstvisible="2" %)
++For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(% _mstvisible="3" style="display:none" %)
++)))
++(% _mstvisible="1" %)
++(((
++(% _msthash="506078" _msttexthash="6907459" _mstvisible="2" %)
  Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
++)))
++(% _mstvisible="1" %)
++(((
++(% _msthash="506079" _msttexthash="23531573" _mstvisible="2" %)
  Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
++)))
++(% _mstvisible="1" %)
++=== (% _msthash="650923" _msttexthash="614185" _mstvisible="3" %)2.6.5 Datalog Uplink payload(%%) ===
--=== 2.6.5 Datalog Uplink payload ===
--
  (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
  The Datalog poll reply uplink will use below payload format.
@@ -871,58 +871,95 @@
  Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
++(% _mstvisible="1" style="text-align: left;" %)
++== (% _msthash="244504" _msttexthash="177736" _mstvisible="3" %)2.7 Alarm Mode(%%) ==
--== 2.7 Alarm Mode ==
--
++(% _msthash="315279" _msttexthash="16493308" _mstvisible="1" style="text-align: left;" %)
  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.
++(% _mstvisible="1" %)
++(((
++(% _mstvisible="2" style="text-align: left;" %)
++(% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.
++)))
--**AT COMMAND FOR ALARM MODE:**
++(% _mstvisible="1" style="text-align: left;" %)
++(% _msthash="315280" _msttexthash="363480" _mstvisible="3" %)**AT COMMAND FOR ALARM MODE:**
  (% _mstvisible="1" class="box infomessage" %)
  (((
--**AT+WMOD=1**:              Enable/disable alarm mode. (0: Disabled, 1: Enabled)
++(% _msthash="506086" _msttexthash="2193529" _mstvisible="2" style="text-align: left;" %)
++(% _istranslated="1" _mstmutation="1" _mstvisible="4" %)**AT+WMOD=1**(%%):              Enable/disable alarm mode. (0: Disabled, 1: Enabled)
--**AT+CITEMP=1**:             The interval between checking the alarm temperature. (In minutes)
++(% _msthash="506087" _msttexthash="3671265" _mstvisible="2" style="text-align: left;" %)
++(% _istranslated="1" _mstvisible="4" %)**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
++(% _msthash="506088" _msttexthash="3310437" _mstvisible="2" style="text-align: left;" %)
++(% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP**(%%):                 Gets or sets the alarm range of the internal temperature sensor
--**AT+ARTEMP=？ **:          Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
++(% _mstvisible="2" style="text-align: left;" %)
++(% _istranslated="1" _mstmutation="1" %)**AT+ARTEMP=？ **(%%):          Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
--**AT+ARTEMP=45,105**:   Set the internal temperature sensor alarm range from 45 to 105.
++(% _msthash="506089" _msttexthash="3590067" _mstvisible="2" style="text-align: left;" %)
++(% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP=45,105**(%%):   Set the internal temperature sensor alarm range from 45 to 105.
  )))
++(% _msthash="72514" _msttexthash="253149" _mstvisible="1" style="text-align: left;" %)
++== (% _istranslated="1" _msthash="168103" _msttexthash="59969" _mstvisible="3" %)2.8 (%%)LED Indicator ==
--== 2.8 LED Indicator ==
--
++(% _mstvisible="1" %)
++(((
++(% _msthash="197769" _msttexthash="2924142" style="text-align: left;" %)
  The LHT65 has a triple color LED which for easy showing different stage .
++(% _msthash="289211" _msttexthash="3402659" style="text-align: left;" %)
  While user press ACT button, the LED will work as per LED status with ACT button.
++)))
++(% _mstvisible="1" %)
++(((
++(% _msthash="506092" _msttexthash="521573" _mstvisible="2" style="text-align: left;" %)
  In a normal working state:
++)))
--* For each uplink, the BLUE LED or RED LED will blink once.
--  BLUE LED when external sensor is connected.
--* RED LED when external sensor is not connected
--* For each success downlink, the PURPLE LED will blink once
++(% _mstvisible="1" %)
++* (% _mstvisible="3" %)
++(((
++(% _msthash="903005" _msttexthash="1647204" _mstvisible="4" %)
++For each uplink, the BLUE LED or RED LED will blink (% _msthash="903005" _msttexthash="46254" _mstvisible="3" %)once(%%).(% style="display:none" %)
++(% _msthash="197771" _msttexthash="1202526" %)
++(% _msthash="903005" _msttexthash="1647204" _mstvisible="3" %)BLUE LED when external sensor is connected
++)))
++* (% _mstvisible="3" %)
++(((
++(% _msthash="903007" _msttexthash="1334749" _mstvisible="4" %)
++RED LED when external sensor is not connected
++)))
++* (% _mstvisible="3" %)
++(((
++(% _msthash="903008" _msttexthash="1875640" _mstvisible="4" %)
++For each success downlink, the PURPLE LED will blink once
++
++)))
--== 2.9 installation ==
++(% _mstvisible="1" style="text-align: left;" %)
++== (% _msthash="112034" _msttexthash="277511" _mstvisible="3" %)2.9 installation(%%) ==
  (% _mstvisible="1" %)
  [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
++(% _msthash="604150" _msttexthash="563212" _mstvisible="1" style="text-align: left;" %)
++= (% _msthash="401388" _msttexthash="566956" _mstvisible="3" %)3. S(% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)ensors(% _msthash="401388" _msttexthash="40417" _mstvisible="3" %) and A(% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)ccessories(%%) =
--= 3. Sensors and Accessories =
++(% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
++== (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E2 Extension Cable(%%) ==
--== 3.1 E2 Extension Cable ==
--
  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
 m long breakout cable for LHT65N
@@ -931,15 +931,17 @@
++(% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
++== (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.2(% _msthash="487110" _msttexthash="455390" %) E3 Temperature Probe(%%) ==
--== 3.2 E3 Temperature Probe ==
--
--
++(% _mstvisible="1" %)
  [[image:image-20220515080154-4.png||_mstalt="434681" _mstvisible="3" alt="photo-20220515080154-4.png" height="182" width="161"]]              [[image:image-20220515080330-5.png||_mstalt="428792" _mstvisible="3" height="201" width="195"]]
++(% _msthash="315354" _msttexthash="1270971" _mstvisible="1" style="text-align: left;" %)
  Temperature sensor with 2 meters cable long
++(% _mstvisible="1" %)
  * Resolution: 0.0625 °C
  * ±0.5°C accuracy from -10°C to +85°C
  * ±2°C accuracy from -55°C to +125°C
@@ -946,232 +946,405 @@
  * Operating Range: -40 ~~ 125 °C
  * Working voltage 2.35v ~~ 5v
++(% _mstvisible="1" style="text-align: left;" %)
++= (% _msthash="1940107" _msttexthash="1714063" _mstvisible="3" %)4. Configure LHT65N via AT command or LoRaWAN downlink(%%) =
--
--
--= 4. Configure LHT65N via AT command or LoRaWAN downlink =
--
++(% _mstvisible="1" %)
++(((
++(% _msthash="506246" _msttexthash="2005926" _mstvisible="2" style="text-align: left;" %)
  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
++)))
--* AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
++(% _mstvisible="1" %)
++* (% _mstvisible="3" %)
++(((
++(% _msthash="903318" _msttexthash="635544" _mstvisible="4" %)
++AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
++)))
++* (% _mstvisible="3" %)
++(((
++(% _msthash="903319" _msttexthash="3225859" _mstvisible="4" %)
++LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
++)))
--* LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
++(% _mstvisible="1" %)
++(((
++(% _mstvisible="2" style="text-align: left;" %)
++
++)))
++(% _mstvisible="1" %)
++(((
++(% _msthash="506248" _msttexthash="2144051" _mstvisible="2" style="text-align: left;" %)
  There are two kinds of commands to configure LHT65N, they are:
++)))
--* (% style="color:#4f81bd" %)**General Commands**.
++(% _mstvisible="1" %)
++(((
++(% _mstvisible="2" style="text-align: left;" %)
++(% _msthash="506249" _msttexthash="317850" _mstvisible="3" style="color:#4f81bd" %)* (% _msthash="506249" _mstmutation="1" _msttexthash="317850" _mstvisible="4" style="color:#4f81bd" %)**General Commands**(% _msthash="506249" _mstmutation="1" _msttexthash="317850" _mstvisible="3" style="color:#4f81bd" %).
++)))
++(% _mstvisible="1" %)
++(((
++(% _msthash="506250" _msttexthash="774527" _mstvisible="2" style="text-align: left;" %)
  These commands are to configure:
++)))
--1. General system settings like: uplink interval.
--1. LoRaWAN protocol & radio-related commands.
++(% _mstvisible="1" %)
++* (% _mstvisible="3" %)
++(((
++(% _msthash="903320" _msttexthash="1503580" _mstvisible="4" %)
++General system settings like: uplink interval.
++)))
++* (% _mstvisible="3" %)
++(((
++(% _msthash="903321" _msttexthash="1244334" _mstvisible="4" %)
++LoRaWAN protocol & radio-related commands.
++)))
++(% _mstvisible="1" %)
++(((
++(% _msthash="506251" _msttexthash="12349142" _mstvisible="2" style="text-align: left;" %)
  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**
++(% _mstvisible="1" %)
++(((
++(% _mstvisible="2" style="text-align: left;" %)
++
++)))
++(% _mstvisible="1" %)
++(((
++(% _mstvisible="2" style="text-align: left;" %)
++(% _mstvisible="3" style="color:#4f81bd" %)* (% _msthash="506249" _mstmutation="1" _msttexthash="317850" _mstvisible="4" style="color:#4f81bd" %)**Commands special design for LHT65N**
++)))
++
++(% _mstvisible="1" %)
++(((
++(% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
  These commands are only valid for LHT65N, as below:
--== 4.1 Set Transmit Interval Time ==
++(% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
++
++)))
++(% _mstvisible="1" style="text-align: left;" %)
++== (% _msthash="708253" _msttexthash="668772" _mstvisible="3" %)4.1 Set Transmit Interval Time(%%) ==
++
++(% _msthash="315355" _msttexthash="1659268" _mstvisible="1" style="text-align: left;" %)
  Feature: Change LoRaWAN End Node Transmit Interval.
--(% style="color:#4f81bd" %)**AT Command: AT+TDC**
++(% _mstvisible="1" style="text-align: left;" %)
++(% _msthash="315244" _msttexthash="241696" style="color:#4f81bd" %)**AT Command: AT+TDC**
++(% _mstvisible="1" %)
  [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
++(% _mstvisible="1" %)
++(((
++(% _mstvisible="2" style="text-align: left;" %)
++
--(% style="color:#4f81bd" %)**Downlink Command: 0x01**
++(% _mstvisible="2" style="text-align: left;" %)
++(% _msthash="506055" _msttexthash="381992" style="color:#4f81bd" %)**Downlink Command: 0x01**
++)))
++(% _mstvisible="1" %)
++(((
++(% _msthash="506256" _msttexthash="1996592" _mstvisible="2" style="text-align: left;" %)
  Format: Command Code (0x01) followed by 3 bytes time value.
++)))
++(% _mstvisible="1" %)
++(((
++(% _msthash="506257" _msttexthash="12934649" _mstvisible="2" style="text-align: left;" %)
  If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
++)))
--* **Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
++(% _mstvisible="1" %)
++* (% _mstvisible="3" %)
++(((
++(% _msthash="903322" _msttexthash="3250546" _mstvisible="4" %)
++(% _mstvisible="5" %)**Example 1**(%%): Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
++)))
++* (% _mstvisible="3" %)
++(((
++(% _msthash="903323" _msttexthash="3253315" _mstvisible="4" %)
++(% _mstvisible="5" %)**Example 2**(%%): Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
--* **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
++(% _msthash="903323" _msttexthash="3253315" _mstvisible="4" %)
++
++)))
--== 4.2 Set External Sensor Mode ==
++(% _mstvisible="1" style="text-align: left;" %)
++== (% _msthash="614770" _msttexthash="578240" _mstvisible="3" %)4.2 Set External Sensor Mode(%%) ==
++(% _msthash="315357" _msttexthash="975117" _mstvisible="1" style="text-align: left;" %)
  Feature: Change External Sensor Mode.
--(% style="color:#4f81bd" %)**AT Command: AT+EXT**
++(% _mstvisible="1" style="text-align: left;" %)
++(% _msthash="315245" _msttexthash="248118" style="color:#4f81bd" %)**AT Command: AT+EXT**
++(% _mstvisible="1" %)
  [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
++(% _mstvisible="1" %)
++(((
++(% _mstvisible="2" style="text-align: left;" %)
++
--(% style="color:#4f81bd" %)**Downlink Command: 0xA2**
++(% _mstvisible="2" style="text-align: left;" %)
++(% _msthash="506056" _msttexthash="387855" style="color:#4f81bd" %)**Downlink Command: 0xA2**
++)))
++(% _mstvisible="1" %)
++(((
++(% _msthash="506259" _msttexthash="395629" _mstvisible="2" style="text-align: left;" %)
  Total bytes: 2 ~~ 5 bytes
++)))
--**Example:**
++(% _mstvisible="1" %)
++(((
++(% _mstvisible="2" %)
++(% _msthash="506260" _msttexthash="104767" _mstvisible="4" %)**Example:**
++)))
--* 0xA201: Set external sensor type to E1
++(% _mstvisible="1" %)
++* (% _mstvisible="3" %)
++(((
++(% _msthash="903324" _msttexthash="934973" _mstvisible="4" %)
++0xA201: Set external sensor type to E1
++)))
++* (% _mstvisible="3" %)
++(((
++(% _msthash="903325" _msttexthash="354770" _mstvisible="4" %)
++0xA209: Same as AT+EXT=9
++)))
++* (% _mstvisible="3" %)
++(((
++(% _msthash="903326" _msttexthash="639067" _mstvisible="4" %)
++0xA20702003c,Same as AT+SETCNT=60
--* 0xA209: Same as AT+EXT=9
--* 0xA20702003c: Same as AT+SETCNT=60
++(% _msthash="903326" _msttexthash="639067" _mstvisible="4" %)
++
++)))
++(% _mstvisible="1" style="text-align: left;" %)
++== (% _msthash="1562483" _msttexthash="1445717" _mstvisible="3" %)4.3 Enable/Disable uplink Temperature probe ID(%%) ==
--
--== 4.3 Enable/Disable uplink Temperature probe ID ==
--
--(((
++(% _msthash="315359" _msttexthash="2977572" _mstvisible="1" style="text-align: left;" %)
  Feature: If PID is enabled, device will send the temperature probe ID on:
--)))
--* (((
--First Packet after OTAA Join
--)))
--* (((
--Every 24 hours since the first packet.
--)))
++(% _mstvisible="1" %)
++* First Packet after OTAA Join
++* Every 24 hours since the first packet.
--(((
++(% _msthash="315360" _msttexthash="658814" _mstvisible="1" style="text-align: left;" %)
  PID is default set to disable (0)
--)))
--(% style="color:#4f81bd" %)**AT Command:**
++(% _mstvisible="1" style="text-align: left;" %)
++(% _msthash="315246" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
++(% _mstvisible="1" %)
  [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
--(% style="color:#4f81bd" %)**Downlink Command:**
++(% _mstvisible="1" style="text-align: left;" %)
++(% _msthash="315247" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
--* **0xA800**     **~-~->** AT+PID=0
--* **0xA801**     **~-~->** AT+PID=1
++(% _mstvisible="1" %)
++* 0xA800     **~-~->** AT+PID=0
++* 0xA801     **~-~->** AT+PID=1
++(% _mstvisible="1" style="text-align: left;" %)
++== (% _msthash="266344" _msttexthash="242879" _mstvisible="3" %)4.4 Set Password(%%) ==
--
--== 4.4 Set Password ==
--
++(% _msthash="315363" _msttexthash="1170728" _mstvisible="1" style="text-align: left;" %)
  Feature: Set device password, max 9 digits
--(% style="color:#4f81bd" %)**AT Command: AT+PWORD**
++(% _mstvisible="1" style="text-align: left;" %)
++(% _msthash="315248" _msttexthash="295009" style="color:#4f81bd" %)**AT Command: AT+PWORD**
++(% _mstvisible="1" %)
  [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
++(% _mstvisible="1" %)
++(((
++(% _mstvisible="2" style="text-align: left;" %)
++
--(% style="color:#4f81bd" %)**Downlink Command:**
++(% _mstvisible="2" style="text-align: left;" %)
++(% _msthash="506057" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
++)))
++(% _mstvisible="1" %)
++(((
++(% _msthash="506262" _msttexthash="974311" _mstvisible="2" style="text-align: left;" %)
  No downlink command for this feature.
++(% _msthash="506262" _msttexthash="974311" _mstvisible="2" style="text-align: left;" %)
++
++)))
++(% _mstvisible="1" style="text-align: left;" %)
++== (% _msthash="306956" _msttexthash="281918" _mstvisible="3" %)4.5 Quit AT Command(%%) ==
--== 4.5 Quit AT Command ==
--
++(% _msthash="315365" _msttexthash="4616456" _mstvisible="1" style="text-align: left;" %)
  Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
--(% style="color:#4f81bd" %)**AT Command: AT+DISAT**
++(% _mstvisible="1" style="text-align: left;" %)
++(% _msthash="315249" _msttexthash="289120" style="color:#4f81bd" %)**AT Command: AT+DISAT**
++(% _mstvisible="1" %)
  [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
--(% style="color:#4f81bd" %)**Downlink Command:**
++(% _mstvisible="1" style="text-align: left;" %)
++(% _msthash="315250" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
++(% _msthash="315368" _msttexthash="974311" _mstvisible="1" style="text-align: left;" %)
  No downlink command for this feature.
++(% _mstvisible="1" style="text-align: left;" %)
++== (% _msthash="362752" _msttexthash="334919" _mstvisible="3" %)4.6 Set to sleep mode(%%) ==
--== 4.6 Set to sleep mode ==
--
++(% _msthash="315369" _msttexthash="779688" _mstvisible="1" style="text-align: left;" %)
  Feature: Set device to sleep mode
--* **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
--* **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
++* AT+Sleep=0  : Normal working mode, device will sleep and use lower power when there is no LoRa message
++* AT+Sleep=1 : Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
++(% _mstvisible="1" style="text-align: left;" %)
  (% _msthash="315251" _msttexthash="289783" style="color:#4f81bd" %)**AT Command: AT+SLEEP**
++(% _mstvisible="1" %)
  [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
++(% _mstvisible="1" %)
  (% _msthash="315252" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
++(% _mstvisible="1" %)
  * There is no downlink command to set to Sleep mode.
++(% _mstvisible="1" %)
++== (% _msthash="336557" _msttexthash="309712" _mstvisible="3" %)4.7 Set system time(%%) ==
--
--
--== 4.7 Set system time ==
--
++(% _msthash="315372" _msttexthash="2565524" _mstvisible="1" %)
  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
++(% _mstvisible="1" %)
  (% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
++(% _mstvisible="1" %)
  [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
++(% _mstvisible="1" %)
  (% _msthash="315254" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
++(% _msthash="315375" _msttexthash="2898571" _mstvisible="1" %)
 x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
++(% _mstvisible="1" %)
++== (% _msthash="376779" _msttexthash="348712" _mstvisible="3" %)4.8 Set Time Sync Mode(%%) ==
--== 4.8 Set Time Sync Mode ==
--
++(% _mstvisible="1" %)
  (((
++(% _msthash="506263" _msttexthash="11748321" _mstvisible="2" %)
  Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
  )))
++(% _mstvisible="1" %)
  (((
++(% _msthash="506264" _msttexthash="6530264" _mstvisible="2" %)
  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.
  )))
++(% _mstvisible="1" %)
++(((
++(% _mstvisible="2" %)
  (% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
++)))
++(% _mstvisible="1" %)
  [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
--(% style="color:#4f81bd" %)**Downlink Command:**
++(% _mstvisible="1" %)
++(% _msthash="315255" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
++(% _msthash="315377" _msttexthash="479648" _mstvisible="1" %)
 x28 01 ~/~/ Same As AT+SYNCMOD=1
++
++(% _msthash="315378" _msttexthash="479076" _mstvisible="1" %)
 x28 00 ~/~/ Same As AT+SYNCMOD=0
++(% _mstvisible="1" %)
++== (% _msthash="536432" _msttexthash="502528" _mstvisible="3" %)4.9 Set Time Sync Interval(%%) ==
--== 4.9 Set Time Sync Interval ==
--
++(% _msthash="315379" _msttexthash="3065777" _mstvisible="1" %)
  Feature: Define System time sync interval. SYNCTDC default value: 10 days.
++(% _mstvisible="1" %)
  (% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
++(% _mstvisible="1" %)
  [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
++(% _mstvisible="1" %)
  (% _msthash="315257" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
--**0x29 0A** ~/~/ Same as AT+SYNCTDC=0x0A
++(% _msthash="315382" _msttexthash="590044" _mstvisible="1" %)
++0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
++(% _mstvisible="1" %)
++== (% _msthash="927901" _msttexthash="882570" _mstvisible="3" %)4.10 Print data entries base on page.(%%) ==
--== 4.10 Print data entries base on page. ==
--
++(% _msthash="315383" _msttexthash="3233334" _mstvisible="1" %)
  Feature: Print the sector data from start page to stop page (max is 416 pages).
++(% _mstvisible="1" %)
  (% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA**
++(% _mstvisible="1" %)
  [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
++(% _mstvisible="1" %)
  (% _msthash="315259" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
++(% _msthash="315386" _msttexthash="799539" _mstvisible="1" %)
  No downlink commands for feature
++(% _mstvisible="1" %)
++== (% _msthash="788762" _msttexthash="747149" _mstvisible="3" %)4.11 Print last few data entries.(%%) ==
--== 4.11 Print last few data entries. ==
--
++(% _msthash="315387" _msttexthash="1101009" _mstvisible="1" %)
  Feature: Print the last few data entries
++(% _mstvisible="1" %)
  (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
++(% _mstvisible="1" %)
  [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
++(% _mstvisible="1" %)
  (% _msthash="315261" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
++(% _msthash="315390" _msttexthash="799539" _mstvisible="1" %)
  No downlink commands for feature
@@ -1190,9 +1190,6 @@
  * Example: 0xA301   ~/~/Same as AT+CLRDTA
--
--
--
  == 4.13 Auto Send None-ACK messages ==
  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
@@ -1207,22 +1207,17 @@
  (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 171px;" %)(% _msthash="1231737" _msttexthash="251862" _mstvisible="6" %)**Command Example**|=(% _mstvisible="4" style="width: 219px;" %)(% _msthash="1231738" _msttexthash="116025" _mstvisible="6" %)**Function**|=(% _mstvisible="4" style="width: 119px;" %)(% _msthash="1231739" _msttexthash="116831" _mstvisible="6" %)**Response**
  (% _mstvisible="3" %)|(% _msthash="1231321" _msttexthash="130455" _mstvisible="4" style="width:171px" %)AT+PNACKMD=1|(% _msthash="1231322" _msttexthash="377026" _mstvisible="4" style="width:219px" %)Poll None-ACK message|(% _msthash="1231323" _msttexthash="14989" _mstvisible="4" style="width:119px" %)OK
--
  (% style="color:#4f81bd" %)**Downlink Command: 0x34**
  * Example: 0x3401   ~/~/Same as AT+PNACKMD=1
--
--
  = 5. Battery & How to replace =
  == 5.1 Battery Type ==
  (((
--(((
  LHT65N is equipped with a 2400mAH Li-MnO2 (CR17505) battery . The battery is an un-rechargeable battery with low discharge rate targeting for up to 8~~10 years use. This type of battery is commonly used in IoT devices for long-term running, such as water meters.
  )))
--)))
  (((
@@ -1229,11 +1229,9 @@
  )))
  (((
--(((
  The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
  [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
  )))
--)))
  The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
@@ -1261,7 +1261,6 @@
  )))
--
  = 6. FAQ =
  == 6.1 How to use AT Command? ==
@@ -1619,9 +1619,6 @@
  * (% style="color:red" %)**E3**(%%): External Temperature Probe
--
--
--
  = 8. Packing Info =
@@ -1628,21 +1628,20 @@
  **Package Includes**:
  * LHT65N Temperature & Humidity Sensor x 1
--* Optional external sensor
++*Optional external sensor
++
  **Dimension and weight**:
  * Device Size:  10 x 10 x 3.5 cm
++
  * Device Weight: 120.5g
--
--
  = 9. Reference material =
  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
--
  = 10. FCC Warning =
  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions: