Last modified by Mengting Qiu on 2024/04/30 14:27
<
From version < 33.1 >
edited by Edwin Chen
on 2022/05/22 23:40
To version < 13.1 >
edited by Edwin Chen
on 2022/05/15 08:03
>
Change comment: Uploaded new attachment "image-20220515080330-5.png", version {1}

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27 27  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
28 28  * AT Commands to change parameters
29 29  * Remote configure parameters via LoRaWAN Downlink
30 -* Firmware upgradeable via program port
30 +* Firmware upgradable via program port
31 31  * Built-in 2400mAh battery for up to 10 years of use.
32 32  * Built-in Temperature & Humidity sensor
33 33  * Optional External Sensors
... ... @@ -57,118 +57,7 @@
57 57  * ±2°C accuracy from -55°C to +125°C
58 58  * Operating Range: -55 °C ~~ 125 °C
59 59  
60 -= Connect LHT65N to IoT Server =
61 61  
62 -== How does LHT65N work? ==
63 -
64 -LHT65N is configured as LoRaWAN OTAA Class A mode by default. Each LHT65N is shipped with a worldwide unique set of OTAA keys. To use LHT65N in a LoRaWAN network, first, we need to put the OTAA keys in LoRaWAN Network Server and then activate LHT65N.
65 -
66 -If LHT65N is under the coverage of this LoRaWAN network. LHT65N can join the LoRaWAN network automatically. After successfully joining, LHT65N will start to measure environment temperature and humidity, and start to transmit sensor data to the LoRaWAN server. The default period for each uplink is 20 minutes.
67 -
68 -
69 -== How to Activate LHT65N? ==
70 -
71 -The LHT65N has two working modes:
72 -
73 -* **Deep Sleep Mode**: LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
74 -* **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, LHT65 will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode. 
75 -
76 -The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
77 -
78 -[[image:image-20220515123819-1.png||height="379" width="317"]]
79 -
80 -|**Behavior on ACT**|**Function**|**Action**
81 -|**Pressing ACT between 1s < time < 3s**|Test uplink status|If LHT65N is already Joined to the LoRaWAN network, LHT65N will send an uplink packet, if LHT65N has an external sensor connected, blue led will blink once. If LHT65N has no external sensor, red led will blink once.
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 -|**Fast press ACT 5 times**|Deactivate Device|red led will solid on for 5 seconds. This means LHT65N is in Deep Sleep Mode.
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 -=== Step2 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 -== LED Indicator ==
134 -
135 -The LHT65N has a triple color LED which for easy shows different stage.
136 -
137 -While pressing ACT button, the LED will work as per LED status with ACT button.
138 -
139 -In a normal working state:
140 -
141 -* For each uplink, the BLUE LED or RED LED will blink once.
142 -* BLUE LED when an external sensor is connected
143 -* RED LED when an external sensor is not connected
144 -* For each success downlink, the PURPLE LED will blink once
145 -
146 -----
147 -
148 -== Installation ==
149 -
150 -[[image:image-20220516231650-1.png||height="632" width="620"]]
151 -
152 -
153 -
154 -
155 -= Sensors & Accessories =
156 -
157 -== E3 Temperature Probe ==
158 -
159 -[[image:image-20220515080154-4.png||height="182" width="161"]] [[image:image-20220515080330-5.png||height="201" width="195"]]
160 -
161 -
162 -With Temperature sensor with 2 meters cable long
163 -
164 -* Resolution: 0.0625 °C
165 -* ±0.5°C accuracy from -10°C to +85°C
166 -* ±2°C accuracy from -55°C to +125°C
167 -* Operating Range: -40 ~~ 125 °C
168 -* -55°C to 125°C
169 -* Working voltage 2.35v ~~ 5v
170 -
171 -
172 172  = Battery & How to replace =
173 173  
174 174  == Battery Type ==
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176 176  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.
177 177  
178 178  The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
179 -[[image:image-20220515075034-1.png||height="208" width="644"]]
68 +[[image:image-20220515075034-1.png||height="208" width="644"]]
180 180  
181 181  
182 182  The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
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197 197  
198 198  = Order Info =
199 199  
200 -Part Number: (% class="mark" %)**LHT65N-XX**
89 +Part Number: (% class="mark" %)**LHT65-XX**
201 201  
202 202  **XX**: The default frequency band
203 203  
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210 210  * **IN865**: LoRaWAN IN865 band
211 211  * **CN470**: LoRaWAN CN470 band
212 212  
213 -**YY**: Sensor Accessories
214 -
215 -* **E3**: External Temperature Probe
216 -
217 217  = Packing Info =
218 218  
219 219  **Package Includes**:
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236 236  (1) This device may not cause harmful interference, and
237 237  
238 238  (2) this device must accept any interference received, including interference that may cause undesired operation
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125 +
126 +
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