Changes for page LHT52 - LoRaWAN Temperature & Humidity Sensor User Manual
Last modified by Mengting Qiu on 2024/04/30 14:27
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... ... @@ -82,6 +82,88 @@ 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 + 85 85 == LED Indicator == 86 86 87 87 The LHT65N has a triple color LED which for easy shows different stage.
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