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LT Series LoRa IO controller User Manual 3 / 50
1. Introduction..............................................................................................................................6
1.1 What is LT Series I/O Controller ..................................................................................................6
1.2 Specifications..............................................................................................................................7
1.3 Features......................................................................................................................................8
1.4 Applications................................................................................................................................8
1.5 Hardware Variants .....................................................................................................................9
1.6 Firmware Change log .................................................................................................................9
2. Power ON Device ....................................................................................................................10
3. Operation Mode .....................................................................................................................11
3.1 How it works?...........................................................................................................................11
3.2 Example to join LoRaWAN network..........................................................................................11
3.3 Uplink Payload..........................................................................................................................13
3.3.1 AT+MOD=1, 2ACI+2AVI...................................................................................................13
3.3.2 AT+MOD=2, (Double DI Counting)..................................................................................14
3.3.3 AT+MOD=3, Single DI Counting + 2 x ACI........................................................................15
3.3.4 AT+MOD=4, Single DI Counting + 1 x Voltage Counting..................................................16
3.3.5 AT+MOD=5, Single DI Counting + 2 x AVI + 1 x ACI .........................................................16
3.3.6 AT+ADDMOD=6. (Trigger Mode, Optional).....................................................................18
3.3.7 Payload Decoder.............................................................................................................20
3.4 Configure LT via AT or Downlink ...............................................................................................21
3.4.1 Common Commands: .....................................................................................................21
3.4.2 Sensor related commands: .............................................................................................21
Set Transmit Interval ................................................................................................................21
Set Work Mode (AT+MOD).......................................................................................................21
Poll an uplink............................................................................................................................22
Enable Trigger Mode ................................................................................................................22
Poll trigger settings...................................................................................................................22
Enable / Disable DI1/DI2/DI3 as trigger ...................................................................................22
Trigger1 – Set DI1 or DI3 as trigger...........................................................................................23
Trigger2 – Set DI2 as trigger .....................................................................................................23
Trigger – Set AC (current) as trigger .........................................................................................23
Trigger – Set AV (voltage) as trigger .........................................................................................23
Trigger – Set minimum interval................................................................................................24
DO -- Control Digital Output DO1/DO2/DO3............................................................................24
DO -- Control Digital Output DO1/DO2/DO3 with time control...............................................24
