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4 4  **LT-22222-L LoRa IO Controller User Manual **
5 5  
6 6  
7 +**Table of Contents:**
7 7  
9 +{{toc/}}
8 8  
11 +
12 +
13 +
9 9  = 1.Introduction =
10 10  
11 11  == 1.1 What is LT Series I/O Controller ==
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412 412  
413 413  Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
414 414  
420 +=== 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
415 415  
422 +(% style="color:#4F81BD" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
416 416  
417 -
418 -
419 -1.
420 -11.
421 -111. AT+ADDMOD=6. (Trigger Mode, Optional)
422 -
423 -**This mode is an optional mode for trigger purpose. It can run together with other mode.**
424 -
425 425  For example, if user has configured below commands:
426 426  
427 -* AT+MOD=1   à The normal working mode
428 -* AT+ADDMOD6=1    à Enable trigger
426 +* AT+MOD=1   --> The normal working mode
427 +* AT+ADDMOD6=1    --> Enable trigger
429 429  
430 430  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
431 431  
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639 639  When device got this command, it will send the MOD6 payload.
640 640  
641 641  
642 -1.
643 -11.
641 +1.
642 +11.
644 644  111. Payload Decoder
645 645  
646 646  **Decoder for TTN/loraserver/ChirpStack**: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/]]
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651 651  
652 652  
653 653  
654 -1.
653 +1.
655 655  11. ​Configure LT via AT or Downlink
656 656  
657 657  User can configure LT I/O Controller via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
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662 662  
663 663  * **Sensor Related Commands**: These commands are special designed for LT-22222-L.  User can see these commands below:
664 664  
665 -1.
666 -11.
664 +1.
665 +11.
667 667  111. Common Commands:
668 668  
669 669  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: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
670 670  
671 671  
672 -1.
673 -11.
671 +1.
672 +11.
674 674  111. Sensor related commands:
675 675  
676 676  ==== Set Transmit Interval ====
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1129 1129  
1130 1130  
1131 1131  
1132 -1.
1131 +1.
1133 1133  11. Integrate with Mydevice
1134 1134  
1135 1135  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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1187 1187  
1188 1188  
1189 1189  1.
1190 -11.
1189 +11.
1191 1191  111. Digital Input Port: DI1/DI2 ( For LT-22222-L)
1192 1192  
1193 1193  The DI port of LT-22222-L can support NPN or PNP output sensor.
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1241 1241  If sensor output is 220v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1242 1242  
1243 1243  
1244 -1.
1245 -11.
1243 +1.
1244 +11.
1246 1246  111. Digital Output Port: DO1/DO2 /DO3
1247 1247  
1248 1248  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
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1253 1253  
1254 1254  
1255 1255  1.
1256 -11.
1255 +11.
1257 1257  111. Analog Input Interface
1258 1258  
1259 1259  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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1286 1286  
1287 1287  
1288 1288  1.
1289 -11.
1288 +11.
1290 1290  111. Relay Output
1291 1291  
1292 1292  The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device’s Power Line to in serial of RO1_1 and RO_2. Such as below:
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1446 1446  
1447 1447  
1448 1448  
1449 -1.
1448 +1.
1450 1450  11. Common AT Command Sequence
1451 1451  111. Multi-channel ABP mode (Use with SX1301/LG308)
1452 1452  
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1469 1469  
1470 1470  ATZ
1471 1471  
1472 -1.
1473 -11.
1471 +1.
1472 +11.
1474 1474  111. Single-channel ABP mode (Use with LG01/LG02)
1475 1475  
1476 1476  123456   Enter Password to have AT access.
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1510 1510  
1511 1511  
1512 1512  1.
1513 -11.
1512 +11.
1514 1514  111. Change to Class A
1515 1515  
1516 1516  If sensor JOINED
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1525 1525  
1526 1526  1. FAQ
1527 1527  
1528 -1.
1527 +1.
1529 1529  11. How to upgrade the image?
1530 1530  
1531 1531  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
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1584 1584  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1585 1585  
1586 1586  
1587 -1.
1586 +1.
1588 1588  11. How to set up LT to work with Single Channel Gateway such as LG01/LG02?
1589 1589  
1590 1590  In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
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1643 1643  [[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work]]
1644 1644  
1645 1645  
1646 -1.
1645 +1.
1647 1647  11. Have trouble to upload image.
1648 1648  
1649 1649  See this link for trouble shooting:
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1651 1651  [[http:~~/~~/wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting>>url:http://wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting]]
1652 1652  
1653 1653  
1654 -1.
1653 +1.
1655 1655  11. Why I can’t join TTN in US915 /AU915 bands?
1656 1656  
1657 1657  It might be about the channels mapping. Please see this link for detail:
image-20220524085923-1.png
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