Dragino LT Series User manual

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LT Series LoRa IO controller User Manual 1 / 50
LT Series LoRa IO Controller User Manual
Document Version: 1.5.7
Image Version: v1.5.4
Version
Description
Date
1.0
Release
2018-Sep-26
1.0.2
Add 8 channels mode for US915, AU915, CN470
2018-Oct-24
1.0.3
Add current measure photo
2018-Nov-2
1.0.4
Add Cayenne connection guide
2018-Nov-24
1.1
Add downlink trouble shooting, Add Hardware Source code link.
Add change log for v1.1. (related to Downlink, Payload part)
Add TTN payload format
2019-Jan-24
1.1.1
Add more info for 8 channel mode descript and troubleshooting while use
US915 and AU915
2019-Feb-21
1.1.2
Modify trouble shooting for upload via FlashLoader,
2019-Apr-26

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Correct the TTN payload decoder
1.2.0
Add Counting Mode
Improve description of single channel gateway compatible
1.2.1
Adjust Downlink instruction while using with LG01-N and LG02
2019-5-7
1.3.0
Add new feature on downlink, able to control the relay base on timing
2019-Aug-9
1.3.1
Add Power ON info
2019-Aug-20
1.4.0
Add LT-22222-L description and support.
Add Decode in LoRaserver
2020-Mar-7
1.4.1
Modify Downlink trouble shooting, Add MyDevice Photo
2020-Mar-28
1.4.2
Add Upgrade info for v1.4.2 firmware version
2020-Mar-30
1.5.0
Add MOD=6, MOD=7
2020-Jul-20
1.5.1
Add trigger to uplink
2020-Sep-25
1.5.4
Modify content to support v1.5.4 firmware
2020-Dec-30
1.5.5
Fix typo for upgrade LED status
2021-Jan-13
1.5.6
Add FAQ for counting
2022-Jan-25
1.5.7
Add wiring example for analog input to 4~20mA sensor
2022-Feb-26

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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

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Relay -- Control Relay Output RO1/RO2...................................................................................25
Relay -- Control Relay Output RO1/RO2 with time control ......................................................26
Counting -- Voltage threshold counting ...................................................................................28
Counting -- Pre-configure the Count Number ..........................................................................28
Counting -- Clear Counting .......................................................................................................29
Counting -- Change counting mode save time .........................................................................30
3.5 Integrate with Mydevice...........................................................................................................30
3.6 Interface Detail.........................................................................................................................33
3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active )........................................33
3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L)...................................................................34
3.6.3 Digital Output Port: DO1/DO2 /DO3 ..............................................................................35
3.6.4 Analog Input Interface ....................................................................................................36
3.6.5 Relay Output...................................................................................................................37
3.7 LEDs Indicators .........................................................................................................................38
4. Use AT Command....................................................................................................................39
4.1 Access AT Command.................................................................................................................39
4.2 Common AT Command Sequence.............................................................................................41
4.2.1 Multi-channel ABP mode (Use with SX1301/LG308)......................................................41
4.2.2 Single-channel ABP mode (Use with LG01/LG02)...........................................................41
4.2.3 Change to Class A............................................................................................................42
5. FAQ.........................................................................................................................................43
5.1 How to upgrade the image?.....................................................................................................43
5.2 How to change the LoRa Frequency Bands/Region? ................................................................45
5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? .........................45
5.4 Can I see counting event in Serial? ...........................................................................................47
6. Trouble Shooting.....................................................................................................................48
6.1 Downlink doesn’t work, how to solve it?..................................................................................48
6.2 Have trouble to upload image..................................................................................................48
6.3 Why I can’t join TTN in US915 /AU915 bands?.........................................................................48
7. Order Info ...............................................................................................................................48
8. Packing Info ............................................................................................................................48
9. Support...................................................................................................................................49
10. Reference...........................................................................................................................50

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1. Introduction
1.1 What is LT Series I/O Controller
The Dragino LT series I/O Modules are Long Range LoRaWAN I/O Controller. It contains different
I/O Interfaces such as: analog current Input, analog voltage input, relay output, digital input and
digital output etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
The LT I/O Controllers allows the user to send data and reach extremely long ranges. It provides
ultra-long range spread spectrum communication and high interference immunity whilst
minimizing current consumption. It targets professional wireless sensor network applications
such as irrigation systems, smart metering, smart cities, smartphone detection, building
automation, and so on.
The LT I/O Controllers is aiming to provide a simple plug and play, low cost installation by using
LoRaWAN wireless technology.
The use environment includes:
1) If user’s area has LoRaWAN service coverage, they can just install the I/O controller and
configure it to connect the LoRaWAN provider via wireless.
2) User can set up a LoRaWAN gateway locally and configure the controller to connect to the
gateway via wireless.

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1.2 Specifications
Hardware System:
➢STM32L072CZT6 MCU
➢SX1276/78 Wireless Chip
➢Power Consumption:
Idle: 4mA@12v
20dB Transmit: 34mA@12v
Interface for Model: LT33222-L:
➢3 x Digital Input ( Detect Low signal , Max, 6V)
➢3 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
➢2 x Relay Output (5A@250VAC / 30VDC)
➢2 x 0~20mA Analog Input (res:0.01mA)
➢2 x 0~30V Analog Input (res:0.01v)
➢Power Input 7~ 24V DC.
➢
Interface for Model: LT22222-L:
➢2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with
optional external resistor)
➢2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
➢2 x Relay Output (5A@250VAC / 30VDC)
➢2 x 0~20mA Analog Input (res:0.01mA)
➢2 x 0~30V Analog Input (res:0.01v)
➢Power Input 7~ 24V DC.
LoRa Spec:
➢Frequency Range:
✓Band 1 (HF): 862 ~ 1020 Mhz
✓Band 2 (LF): 410 ~ 528 Mhz
➢168 dB maximum link budget.
➢+20 dBm - 100 mW constant RF output vs.
➢+14 dBm high efficiency PA.
➢Programmable bit rate up to 300 kbps.
➢High sensitivity: down to -148 dBm.
➢Bullet-proof front end: IIP3 = -12.5 dBm.
➢Excellent blocking immunity.
➢Low RX current of 10.3 mA, 200 nA register retention.
➢Fully integrated synthesizer with a resolution of 61 Hz.
➢FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
➢Built-in bit synchronizer for clock recovery.
➢Preamble detection.

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➢127 dB Dynamic Range RSSI.
➢Automatic RF Sense and CAD with ultra-fast AFC.
➢Packet engine up to 256 bytes with CRC.
1.3 Features
✓LoRaWAN Class A & Class C protocol
✓Optional Customized LoRa Protocol
✓Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865
✓AT Commands to change parameters
✓Remote configure parameters via LoRa Downlink
✓Firmware upgradable via program port
✓Counting
1.4 Applications
✓Smart Buildings & Home Automation
✓Logistics and Supply Chain Management
✓Smart Metering
✓Smart Agriculture
✓Smart Cities
✓Smart Factory

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1.5 Hardware Variants
Model
Photo
Description
LT33222-L
✓3 x Digital Input
✓3 x Digital Output
✓2 x Relay Output (5A@250VAC / 30VDC)
✓2 x 0~20mA Analog Input (res:0.01mA)
✓2 x 0~30V Analog Input (res:0.01v)
✓1 x Counting Port
Model
Photo
Description
LT22222-L
✓2 x Digital Input (Bi-direction)
✓2 x Digital Output
✓2 x Relay Output (5A@250VAC / 30VDC)
✓2 x 0~20mA Analog Input (res:0.01mA)
✓2 x 0~30V Analog Input (res:0.01v)
✓1 x Counting Port
1.6 Firmware Change log
LT Image files:
http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/
Change log:
http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-
L/image/&file=changelog

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2. Power ON Device
The LT controller can be powered by 7 ~ 24V DC power source. Connect VIN to Power Input V+
and GND to power input V- to power the LT controller.
PWR will on when device is properly powered.

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3. Operation Mode
3.1 How it works?
The LT is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network.
To connect a local LoRaWAN network, user just need to input the OTAA keys in the network
server and power on the LT. It will auto join the network via OTAA. For LT-22222-L, the LED will
show the Join status: After power on TX LED will fast blink 5 times, LT-22222-L will enter working
mode and start to JOIN LoRaWAN network. TX LED will be on for 5 seconds after joined in
network. When there is message from server, the RX LED will be on for 1 second.
In case user can’t set the OTAA keys in the network server and has to use the existing keys from
server. User can use AT Command to set the keys in the devices.
3.2 Example to join LoRaWAN network
This chapter shows an example for how to join the TTN LoRaWAN Network. Below is the network
structure, we use our LG308 as LoRaWAN gateway here.
The LG308 is already set to connect to TTN network . So what we need to do now is only
configure register this device to TTN:
Step 1: Create a device in TTN with the OTAA keys from LT IO controller.
Each LT is shipped with a sticker with the default device EUI as below:

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Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
Add APP EUI in the application.
Add APP KEY and DEV EUI
Step 2: Power on LT and it will auto join to the TTN network. After join success, it will start to
upload message to TTN and user can see in the panel.

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3.3 Uplink Payload
There are five working modes + one interrupt mode on LT for different type application:
✓MOD1: (default setting): 2 x ACI + 2AVI + DI + DO + RO
✓MOD2: Double DI Counting + DO + RO
✓MOD3: Single DI Counting + 2 x ACI + DO + RO
✓MOD4: Single DI Counting + 1 x Voltage Counting + DO + RO
✓MOD5: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
✓ADDMOD6: Trigger Mode, Optional, used together with MOD1 ~ MOD5
3.3.1 AT+MOD=1, 2ACI+2AVI
The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes
send one uplink by default.
Size(bytes)
2
2
2
2
1
1
1
Value
AVI1
voltage
AVI2
voltage
ACI1
Current
ACI2
Current
DIDORO*
Reserve
MOD
DIDORO is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
RO1
RO2
DI3
DI2
DI1
DO3
DO2
DO1
✓RO is for relay. ROx=1 : close，ROx=0 always open.
✓DI is for digital input. DIx=1: high or float, DIx=0: low.
✓DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
Note: DI3 and DO3 bit are not valid for LT-22222-L
For example if payload is: 04 AB 04 AC 13 10 13 00 AA FF 01
The value for the interface is:
AVI1 channel voltage is 0x04AB/1000=1195（DEC）/1000=1.195V
AVI2 channel voltage is 0x04AC/1000=1.196V
ACI1 channel current is 0x1310/1000=4.880mA
ACI2 channel current is 0x1300/1000=4.864mA
The last byte 0xAA= 10101010(B) means
✓[1] RO1 relay channel is close and the RO1 LED is ON.
✓[0] RO2 relay channel is open and RO2 LED is OFF;
LT33222-L:
✓[1] DI3 channel is high input and DI3 LED is OFF;
✓[0] DI2 channel is low input;
✓[1] DI1 channel is high input and DI1 LED is OFF;
LT22222-L:
✓[1] DI2 channel is high input and DI2 LED is ON;

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✓[0] DI1 channel is low input;
✓[0] DO3 channel output state
DO3 is float in case no load between DO3 and V+.;
DO3 is high in case there is load between DO3 and V+.
DO3 LED is off in both case
✓[1] DO2 channel output is low and DO2 LED is ON.
✓[0] DO1 channel output state
DO1 is float in case no load between DO1 and V+.;
DO1 is high in case there is load between DO1 and V+.
DO1 LED is off in both case
3.3.2 AT+MOD=2, (Double DI Counting)
For LT-33222-L: this mode the DI3 is used as a counting pin. Counting on DI3 reflect in COUNT1.
For LT-22222-L: this mode the DI1 and DI2 are used as counting pins.
Total : 11 bytes payload
Size(bytes)
4
4
1
1
1
Value
COUNT1
COUNT2
DIDORO*
Reserve
MOD
DIDORO is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
RO1
RO2
FIRST
Reserve
Reserve
DO3
DO2
DO1
✓RO is for relay. ROx=1 : close，ROx=0 always open.
✓FIRST: Indicate this is the first packet after join network.
✓DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
Note: DO3 bit is not valid for LT-22222-L.
To use counting mode, please run:
AT+MOD=2
ATZ
AT Commands for counting:
For LT33222-L:
AT+TRIG1=0,100 (set DI3 port to trigger on low level, valid signal is 100ms)
AT+TRIG1=1,100 (set DI3 port to trigger on high level, valid signal is 100ms )
AT+SETCNT=1,60 (Set COUNT1 value to 60)
For LT22222-L:
AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms)

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AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms )
AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms)
AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms )
AT+SETCNT=1,60 (Set COUNT1 value to 60)
AT+SETCNT=2,60 (Set COUNT2 value to 60)
For both LT22222-L & LT33222-L:
AT+CLRCOUNT clear all countings
AT+COUTIME=60 Set save time to 60 seconds. Device will save the counting result in internal
flash every 60 seconds. (min value: 30)
3.3.3 AT+MOD=3, Single DI Counting + 2 x ACI
LT33222-L: This mode the DI3 is used as a counting pin.
LT22222-L: This mode the DI1 is used as a counting pin.
Size(bytes)
4
2
2
1
1
1
Value
COUNT1
ACI1
Current
ACI2
Current
DIDORO*
Reserve
MOD
DIDORO is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
RO1
RO2
FIRST
Reserve
Reserve
DO3
DO2
DO1
✓RO is for relay. ROx=1 : close，ROx=0 always open.
✓FIRST: Indicate this is the first packet after join network.
✓DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
Note: DO3 is not valid for LT-22222-L.
To use counting mode, please run:
AT+MOD=3
ATZ
Other AT Commands for counting are similar to MOD2 Counting Command.

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3.3.4 AT+MOD=4, Single DI Counting + 1 x Voltage Counting
LT33222-L: This mode the DI3 is used as a counting pin.
LT22222-L: This mode the DI1 is used as a counting pin.
The AVI1 is also used for counting. AVI1 is used to monitor the voltage. It will check the voltage
every 60s, if voltage is higher or lower than VOLMAX mV, the AVI1 Counting increase 1, so AVI1
counting can be used to measure a machine working hour.
Size(bytes)
4
4
1
1
1
Value
COUNT1
AVI1
Counting
DIDORO*
Reserve
MOD
DIDORO is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
RO1
RO2
FIRST
Reserve
Reserve
DO3
DO2
DO1
✓RO is for relay. ROx=1 : close，ROx=0 always open.
✓FIRST: Indicate this is the first packet after join network.
✓DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
Note: DO3 is not valid for LT-22222-L.
To use this mode, please run:
AT+MOD=4
ATZ
Other AT Commands for counting are similar to MOD2 Counting Command.
Plus below command for AVI1 Counting:
AT+SETCNT=3,60 (set AVI Count to 60)
AT+VOLMAX=20000 (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter
increase 1)
AT+VOLMAX=20000,0 (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter
increase 1)
AT+VOLMAX=20000,1 (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter
increase 1)
3.3.5 AT+MOD=5, Single DI Counting + 2 x AVI + 1 x ACI
LT33222-L: This mode the DI3 is used as a counting pin.
LT22222-L: This mode the DI1 is used as a counting pin.

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Size(bytes)
2
2
2
2
1
1
1
Value
AVI1
voltage
AVI2
voltage
ACI1
Current
COUNT1
DIDORO*
Reserve
MOD
DIDORO is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
RO1
RO2
FIRST
Reserve
Reserve
DO3
DO2
DO1
✓RO is for relay. ROx=1 : close，ROx=0 always open.
✓FIRST: Indicate this is the first packet after join network.
✓DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
Note: DO3 is not valid for LT-22222-L.
To use this mode, please run:
AT+MOD=5
ATZ
Other AT Commands for counting are similar to MOD2 Counting Command.

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3.3.6 AT+ADDMOD=6. (Trigger Mode, Optional)
This mode is an optional mode for trigger purpose. It can run together with other mode.
For example, if user has configured below commands:
✓AT+MOD=1 → The normal working mode
✓AT+ADDMOD6=1 → Enable trigger
LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two
cases:
1. Periodically uplink (Base on TDC time). Payload is same as the normal MOD (MOD 1 for
above command). This uplink uses LoRaWAN unconfirmed data type
2. Trigger uplink when meet the trigger condition. LT will sent two packets in this case, the first
uplink use payload specify in this mod (mod=6), the second packets use the normal mod
payload(MOD=1 for above settings). Both Uplinks use LoRaWAN CONFIRMED data type.
AT Command to set Trigger Condition:
Trigger base on voltage:
Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,<
AV2_LIMIT_HIGH>
Example:
AT+AVLIM=3000,6000,0,2000 (If AVI1 voltage lower than 3v or higher than 6v. or AV2
voltage is higher than 2v, LT will trigger Uplink)
AT+AVLIM=5000,0,0,0 (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
Trigger base on current:
Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,<
AC2_LIMIT_HIGH>
Example:
AT+ACLIM=10000,15000,0,0 (If ACI1 voltage lower than 10mA or higher than 15mA, trigger
an uplink)
Trigger base on DI status:
DI status trigger Flag.
Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >
Example:
AT+ DTRI =1,0 (Enable DI1 trigger / disable DI2 trigger)

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Downlink Command to set Trigger Condition
Type Code: 0xAA. Downlink command same as AT Command AT+AVLIM, AT+ACLIM
Format: AA xx yy1 yy1 yy2 yy2 yy3 yy3 yy4 yy4
AA: Code for this downlink Command:
xx: 0: Limit for AV1 and AV2; 1: limit for AC1 and AC2 ; 2 DI1, DI2 trigger enable/disable
yy1 yy1: AC1 or AV1 low limit or DI1/DI2 trigger status.
yy2 yy2: AC1 or AV1 high limit.
yy3 yy3: AC2 or AV2 low limit.
Yy4 yy4: AC2 or AV2 high limit.
Example1: AA 00 13 88 00 00 00 00 00 00
Same as AT+AVLIM=5000,0,0,0 (If AVI1 voltage lower than 5V , trigger uplink, 0 means
ignore)
Example2: AA 02 01 00
Same as AT+ DTRI =1,0 (Enable DI1 trigger / disable DI2 trigger)
Trigger Settings Payload Explanation:
MOD6 Payload : total 11 bytes payload
Size(bytes)
1
1
1
6
1
1
Value
TRI_A
FLAG
TRI_A
Status
TRI_DI
FLAG+STA
Reserve
Enable/Disable
MOD6
MOD
(6)
TRI FLAG1 is a combination to show if trigger is set for this part. Totally 1byte as below
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
AV1_
LOW
AV1_
HIGH
AV2_
LOW
AV2_
HIGH
AC1_
LOW
AC1_
HIGH
AC2_
LOW
AC2_
HIGH
✓Each bits shows if the corresponding trigger has been configured.
Example:
10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
TRI Status1 is a combination to show which condition is trigger. Totally 1byte as below
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
AV1_
LOW
AV1_
HIGH
AV2_
LOW
AV2_
HIGH
AC1_
LOW
AC1_
HIGH
AC2_
LOW
AC2_
HIGH
✓Each bits shows which status has been trigger on this uplink.
Example:
10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.

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LT Series LoRa IO controller User Manual 20 / 50
TRI_DI FLAG+STA is a combination to show which condition is trigger. Totally 1byte as below
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
N/A
N/A
N/A
N/A
DI2_STATUS
DI2_FLAG
DI1_STATUS
DI1_FLAG
✓Each bits shows which status has been trigger on this uplink.
Example:
00000111: Means both DI1 and DI2 trigger are enabled and this packet is trigger by DI1.
00000101: Means both DI1 and DI2 trigger are enabled.
Enable/Disable MOD6 : 0x01: MOD6 is enable. 0x00: MOD6 is disable.
Downlink command to poll MOD6 status:
AB 06
When device got this command, it will send the MOD6 payload.
3.3.7 Payload Decoder
Decoder for TTN/loraserver/ChirpStack:
http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/