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82	82	|**Pressing ACT for more than 3s**|Active Device|green led will fast blink 5 times, LHT65N will enter working mode and start to JOIN LoRaWAN network. green led will solid turn on for 5 seconds after join in network.
83	83	|**Fast press ACT 5 times**|Deactivate Device|red led will solid on for 5 seconds. This means LHT65N is in Deep Sleep Mode.
84	84
85		-== Example to join LoRaWAN network ==
86		-
87		-(% class="wikigeneratedid" %)
88		-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.
89		-
90		-(% class="wikigeneratedid" %)
91		-[[image:image-20220522232442-1.png||height="387" width="648"]]
92		-
93		-Assume the LPS8N is already set to connect to [[TTN V3 network>>url:https://eu1.cloud.thethings.network]], So it provides network coverage for LHT65N. Next we need to add the LHT65N device in TTN V3:
94		-
95		-
96		-=== **Step 1**: Create Device n TTN ===
97		-
98		-Create a device in TTN V3 with the OTAA keys from LHT65N.
99		-
100		-Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
101		-
102		-[[image:image-20220522232812-2.png||height="219" width="279"]]
103		-
104		-User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
105		-
106		-Add APP EUI in the application.
107		-
108		-[[image:image-20220522232916-3.png]]
109		-
110		-
111		-[[image:image-20220522232932-4.png]]
112		-
113		-
114		-[[image:image-20220522232954-5.png]]
115		-
116		-Note: LHT65N use same payload as LHT65.
117		-
118		-[[image:image-20220522233026-6.png]]
119		-
120		-
121		-Input APP EUI,  APP KEY and DEV EUI:
122		-
123		-[[image:image-20220522233118-7.png]]
124		-
125		-
126		-=== Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
127		-
128		-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.
129		-
130		-[[image:image-20220522233300-8.png]]
131		-
132		-
133		-== Uplink Payload: ==
134		-
135		-The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and(% class="mark" %) every 20 minutes(%%) send one uplink by default.
136		-
137		-After each uplink, the (% class="mark" %)BLUE LED(%%) will blink once.
138		-
139		-
140		-(% style="width:572px" %)
141		-|(% style="width:106px" %)**Size(bytes)**|(% style="width:71px" %)**2**|(% style="width:128px" %)**2**|(% style="width:103px" %)**2**|(% style="width:72px" %)**1**|(% style="width:89px" %)**4**
142		-|(% style="width:106px" %)**Value**|(% style="width:71px" %)[[BAT>>path:#Battery]]|(% style="width:128px" %)(((
143		-[[Built-In>>path:#SHT20_Temperature]]
144		-
145		-[[Temperature>>path:#SHT20_Temperature]]
146		-)))|(% style="width:103px" %)(((
147		-[[Built-in>>path:#SHT20_Humidity]]
148		-
149		-[[Humidity>>path:#SHT20_Humidity]]
150		-)))|(% style="width:72px" %)[[Ext>>path:#Extension_Sensor]] #|(% style="width:89px" %)[[Ext value>>path:#Extension_sensor_value]]
151		-
152		-* The First 6 bytes: has fix meanings for every LHT65N.
153		-* The 7th byte (EXT #): defines the external sensor model.
154		-* The 8^^th^^ ~~ 11^^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.)
155		-
156		-
157		-=== Decoder in TTN V3 ===
158		-
159		-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.
160		-
161		-Below is the position to put the decoder and LHT65N decoder can be download from here:
162		-
163		-
164		-[[image:image-20220522234118-10.png]]
165		-
166		-
167	167	== LED Indicator ==
168	168
169	169	The LHT65N has a triple color LED which for easy shows different stage.

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