Changes for page LT-22222-L -- LoRa I/O Controller User Manual

Last modified by Saxer Lin on 2025/04/15 17:24

From version < 77.27 >

edited by Xiaoling
on 2022/06/10 08:41

To version < 77.44 >

edited by Xiaoling
on 2022/06/10 09:01

Change comment: There is no comment for this version

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  **Interface for Model: LT22222-L:**
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  Power Input 7~~ 24V DC.
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  **LoRa Spec:**
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  == 1.3 Features ==
  * LoRaWAN Class A & Class C protocol
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  * Counting
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  == 1.4  Applications ==
  * Smart Buildings & Home Automation
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  * Smart Factory
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  == 1.5 Hardware Variants ==
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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.
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  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
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  === 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.
@@ -322,7 +322,6 @@
  * [1] RO1 relay channel is close and the RO1 LED is ON.
  * [0] RO2 relay channel is open and RO2 LED is OFF;
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  **LT22222-L:**
  * [1] DI2 channel is high input and DI2 LED is ON;
@@ -339,7 +339,6 @@
  ** DO1 LED is off in both case
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  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
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  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
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  === 3.4.1 Common Commands ===
  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
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  ==== 3.4.2.11 Trigger – Set minimum interval ====
  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
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  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
  * AT Command:
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  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
  * AT Command:
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  DO1 pin no action, DO2 pin set low, DO3 pin set high, last 2 seconds, then DO1 pin no action, DO2 pin set high, DO3 pin set low
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  === 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ===
  * AT Command:
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  Device will upload a packet if downlink code executes successfully.
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  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
  * AT Command:
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  Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
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  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
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  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
  * AT Command:
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  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
  Clear counting for counting mode
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  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
  * AT Command:
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  == 3.5 Integrate with Mydevice ==
  Mydevices provides a human friendly interface to show the sensor data, once we have data in TTN, we can use Mydevices to connect to TTN and see the data in Mydevices. Below are the steps:
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  [[image:image-20220524094909-5.png||height="341" width="734"]]
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  == 3.6 Interface Detail ==
  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
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  [[image:1653356991268-289.png]]
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  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
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  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
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  [[image:1653357531600-905.png]]
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  === 3.6.4 Analog Input Interface ===
  The analog input interface is as below. The LT will measure the IN2 voltage so to calculate the current pass the Load. The formula is:
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  [[image:1653357648330-671.png||height="155" width="733"]]
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  === 3.6.5 Relay Output ===
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  [[image:image-20220524100215-10.png||height="382" width="723"]]
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  == 3.7 LEDs Indicators ==
  [[image:image-20220524100748-11.png]]
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  == 4.2 Common AT Command Sequence ==
  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
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  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
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  === 4.2.3 Change to Class A ===
  If sensor JOINED
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  * Support new features
  * For bug fix
  * Change LoRaWAN bands.
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  Below shows the hardware connection for how to upload an image to the LT:
--* [[image:1653359603330-121.png]]
++[[image:1653359603330-121.png]]
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  **Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
  **Step3: **Open flashloader; choose the correct COM port to update.
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  **For LT-22222-L**:
  Hold down the PRO button and then momentarily press the RST reset button and the **DO1 led** will change from OFF to ON. When **DO1 LED** is on, it means the device is in download mode.
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  == 5.2 How to change the LoRa Frequency Bands/Region? ==
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  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
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  == 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
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  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
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  (% style="color:red" %)Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by TTN.
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  (% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
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--(% style="background-color:#dcdcdc" %)123456 (%%)  Enter Password to have AT access.
--(% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
--(% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
--(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
--(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
--(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
--(% style="background-color:#dcdcdc" %)AT+TDC=60000  (%%)Set transmit interval to 60 seconds
--(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
--(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
--(% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
++(% style="background-color:#dcdcdc" %)123456 (%%)     Enter Password to have AT access.
++(% style="background-color:#dcdcdc" %)AT+FDR(%%)     Reset Parameters to Factory Default, Keys Reserve
++(% style="background-color:#dcdcdc" %)123456 (%%)     Enter Password to have AT access.
++(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)    Set to ABP mode
++(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)    Set the Adaptive Data Rate Off
++(% style="background-color:#dcdcdc" %)AT+DR=5 (%%)      Set Data Rate (Set AT+DR=3 for 915 band)
++(% style="background-color:#dcdcdc" %)AT+TDC=60000 (%%)         Set transmit interval to 60 seconds
++(% style="background-color:#dcdcdc" %)AT+CHS=868400000(%%)  Set transmit frequency to 868.4Mhz
++(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%)    Set Device Address to 26 01 1A F1
++(% style="background-color:#dcdcdc" %)ATZ        (%%)                              Reset MCU
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  As shown in below:
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  == 5.5 Can i use point to point communication for LT-22222-L? ==
  Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
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  = 6. Trouble Shooting =
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  Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
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  == 6.2 Have trouble to upload image. ==
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  == 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
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  It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
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  = 7. Order Info =
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  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
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  (% style="color:#4f81bd" %)**XXX:**
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--(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
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++* (% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
++* (% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
++* (% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
++* (% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
++* (% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
++* (% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
++* (% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
++* (% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
++* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
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--(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
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--(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
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--(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
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--(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
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--(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
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--(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
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--(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
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--(% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
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  = 8. Packing Info =
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  **Package Includes**:
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  * LT-22222-L I/O Controller x 1
  * Stick Antenna for LoRa RF part x 1
  * Bracket for controller x1
  * Program cable x 1
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  **Dimension and weight**:
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  * Device Size: 13.5 x 7 x 3 cm
  * Device Weight: 105g
  * Package Size / pcs : 14.5 x 8 x 5 cm
  * Weight / pcs : 170g
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  = 9. Support =
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  * (((
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  Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
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  * (((
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--Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to
++Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
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--         [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
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  = 10. Reference =
--* Product Page:
--
--LT-22222-L: [[http:~~/~~/www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html]]
--
++* LT-22222-L: [[http:~~/~~/www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html]]
  * [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
  * [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
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Changes for page LT-22222-L -- LoRa I/O Controller User Manual

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