User Manual for LoRaWAN End Nodes - LTC2 - LoRaWAN Temperature Transmitter User Manual
Table of Contents
1. Introduction ........................................................................................................................................................................ 6
1.1 What is LTC2 LoRaWAN Temperature Transmitter ................................................................................................ 6
1.2 Features ........................................................................................................................................................................ 6
1.3 Applications ................................................................................................................................................................... 7
1.4 Hardware Change log ................................................................................................................................................... 7
1.5 Pin Definitions and Switch .......................................................................................................................................... 7
1.5.1 Jumper JP2 ( Power ON) ..................................................................................................................................... 7
1.5.2 LED .......................................................................................................................................................................... 7
1.5.3 PT100 Interfaces .................................................................................................................................................... 7
1.5.4 Reset Button ........................................................................................................................................................... 7
1.6 Probe Variant ............................................................................................................................................................. 7
2. How to use LTC2? ........................................................................................................................................................... 9
2.1 Connect to PT100 sensors ......................................................................................................................................... 9
2.2 How it works? ............................................................................................................................................................ 9
2.3 Quick guide to connect to LoRaWAN server (OTAA) ............................................................................................. 9
2.4 Uplink Payload ............................................................................................................................................................ 16
2.5 Datalog Feature ......................................................................................................................................................... 17
2.5.1 Unix TimeStamp .................................................................................................................................................. 17
2.5.2 Set Device Time ................................................................................................................................................... 18
2.5.3 Poll sensor value .................................................................................................................................................. 18
2.5.4 Datalog Uplink payload ....................................................................................................................................... 19
2.6 Alarm Mode ................................................................................................................................................................. 21
3. Configure LTC2 via AT Command or LoRaWAN Downlink ...................................................................................... 21
3.1 Set Transmit Interval Time ....................................................................................................................................... 21
3.2 Enable PT100 channels ............................................................................................................................................ 22
3.3 Set External Sensor Mode ........................................................................................................................................ 22
3.4 Quit AT Command ..................................................................................................................................................... 23
3.5 Set system time .......................................................................................................................................................... 23
3.6 Set Time Sync Mode ................................................................................................................................................. 23
3.7 Set Time Sync Interval .............................................................................................................................................. 23
3.8 Retrieve data .............................................................................................................................................................. 24
3.9 Enable Alarm mode ................................................................................................................................................... 24
3.10 Alarm check time ..................................................................................................................................................... 24
3.11 Set Alarm Threshold ................................................................................................................................................ 24
3.12 Set Calibrate Value .................................................................................................................................................. 25
3.13 Poll Calibrate Value ................................................................................................................................................. 25
3.14 Print data entries base on page ............................................................................................................................. 25
3.15 Print last few data entries ....................................................................................................................................... 26
3.16 Clear Flash Record .................................................................................................................................................. 27
4. Battery & How to replace .............................................................................................................................................. 27
4.1 Battery Type ............................................................................................................................................................... 27
4.2 Replace Battery .......................................................................................................................................................... 28
4.3 Power Consumption Analyze ................................................................................................................................... 28
5. Firmware Change Log and Upload Firmware ............................................................................................................. 29
............................................................................................................................................................................................... 29
6. FAQ .................................................................................................................................................................................. 29
6.1 How to use AT Command to configure LTC2 ........................................................................................................ 29
6.2 How to connect a customized PT100 cable? ........................................................................................................ 30
6.3 What is the frequency range of LTC2 LoRa part? ................................................................................................ 33
6.4 How to change the LoRa Frequency Bands/Region ............................................................................................. 34
7. Trouble Shooting ............................................................................................................................................................ 34
7.1 AT Command input doesn't work ............................................................................................................................ 34
8. Order Info ........................................................................................................................................................................ 34
Page 2 / 35 - last modified by Xiaoling on 2023/02/02 14:47
