Dragino LHT65 - Default Chapter; Table of Contents

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LHT65 Temperature & Humidity sensor 3 / 56
1. Introduction .............................................................................................................................. 6
1.1 What is LHT65 Temperature & Humidity Sensor ........................................................................ 6
1.2 Features ...................................................................................................................................... 7
1.3 Specifications .............................................................................................................................. 7
1.4 Power Consumption ................................................................................................................... 8
1.5 Storage & Operation Temperature ............................................................................................. 9
1.6 Applications ................................................................................................................................ 9
2. Operation Mode ..................................................................................................................... 10
2.1 How to activate LHT65? ........................................................................................................... 10
2.2 How it works? ........................................................................................................................... 10
2.3 Example to join LoRaWAN network .......................................................................................... 10
2.4 Uplink Payload .......................................................................................................................... 12
2.4.1 Decoder in TTN ............................................................................................................... 13
2.4.2 BAT-Battery Info .............................................................................................................. 13
2.4.3 Built-in Temperature ....................................................................................................... 14
2.4.4 Built-in Humidity ............................................................................................................. 14
2.4.5 Ext # ................................................................................................................................ 14
2.4.6 Ext value ......................................................................................................................... 14
2.4.7 Ext=1, E1 Temperature Sensor ........................................................................................ 15
2.4.8 Ext=4, Interrupt Sensor ................................................................................................... 16
2.4.9 Ext=5, E5 Illumination Sensor ......................................................................................... 18
2.4.10 Ext=6, ADC Sensor .......................................................................................................... 19
2.4.11 Ext=7, Counting Sensor ................................................................................................... 20
2.4.12 Ext=8, Counting Sensor ( 4 bytes) ................................................................................... 21
2.4.13 Ext=9, E1 sensor with Unix Time stamp .......................................................................... 23
2.5 Show data on MyDevices ......................................................................................................... 23
2.6 Datalog Feature........................................................................................................................ 27
2.6.1 Unix TimeStamp .............................................................................................................. 27
2.6.2 Set Device Time .............................................................................................................. 27
2.6.3 Poll sensor value ............................................................................................................. 28
2.6.4 Datalog Uplink payload ................................................................................................... 29
2.7 Alarm Mode.............................................................................................................................. 30
2.8 LED Indicator ............................................................................................................................ 32
3. Configure LHT65 via AT Command or LoRaWAN Downlink ...................................................... 33