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 < 66.12 >

edited by Xiaoling
on 2022/05/24 13:39

To version < 63.1 >

edited by Xiaoling
on 2022/05/24 10:40

Change comment: Uploaded new attachment "image-20220524104033-15.png", version {1}

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@@ -131,7 +131,7 @@
  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>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H4.UseATCommand]] to set the keys in the devices.
++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>>path:#AT_Command]] to set the keys in the devices.
 .2 Example to join LoRaWAN network
@@ -327,7 +327,7 @@
  **ATZ**
  )))
--Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.2AT2BMOD3D22C28DoubleDICounting29]].
++Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
@@ -362,7 +362,7 @@
  )))
--Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.2AT2BMOD3D22C28DoubleDICounting29]].
++Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
  **Plus below command for AVI1 Counting:**
@@ -414,7 +414,7 @@
  **ATZ**
  )))
--Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.2AT2BMOD3D22C28DoubleDICounting29]].
++Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
@@ -463,7 +463,7 @@
  **Downlink Command to set Trigger Condition**
--Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
++Type Code: 0xAA. Downlink command same as AT Command [[AT+AVLIM, AT+ACLIM>>path:#AT_Trigger]]
  Format: AA xx yy1 yy1 yy2 yy2 yy3 yy3 yy4 yy4
@@ -1053,6 +1053,7 @@
  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
++
  [[image:image-20220524094909-1.png||height="335" width="729"]]
  [[image:image-20220524094909-2.png||height="337" width="729"]]
@@ -1063,6 +1063,10 @@
  [[image:image-20220524094909-5.png||height="341" width="734"]]
++
++
++
++
  == 3.6 Interface Detail ==
  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
@@ -1111,9 +1111,9 @@
  So when sensor active, the current between NEC2501 pin1 and pin2 is:
--[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**    [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
++[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**    [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
--If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
++If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
  **Example3**: Connect to a 220v high active sensor.
@@ -1125,7 +1125,7 @@
  So when sensor active, the current between NEC2501 pin1 and pin2 is:
--   [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
++   [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
  If sensor output is 220v, the (% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
@@ -1516,89 +1516,158 @@
  [[image:image-20220524103429-13.png]]
--[[image:image-20220524104033-15.png]]
++(% style="color:red" %)**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
--(% style="color:red" %)**Notice**(%%): In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
--[[image:1653360054704-518.png||height="186" width="745"]]
++1. (((
++(((
++
++)))
++1. (((
++How to change the LoRa Frequency Bands/Region?
++)))
++)))
++
  (((
++User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
++)))
++
  (((
--== 5.2 How to change the LoRa Frequency Bands/Region? ==
++
  )))
++
++1.
++11. (((
++How to set up LT to work with Single Channel Gateway such as LG01/LG02?
  )))
  (((
--User can follow the introduction for [[how to upgrade image>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H5.1Howtoupgradetheimage3F]]. When download the images, choose the required image file for download.
++In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
  )))
  (((
--== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
++Assume we have a LG02 working in the frequency 868400000 now , below is the step.
  )))
  (((
++
++)))
++
  (((
--In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
++**Step1**: Log in TTN, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
  )))
++
++(((
++[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image039.png]]
  )))
  (((
++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.
++)))
++
  (((
--Assume we have a LG02 working in the frequency 868400000 now , below is the step.
++
  )))
++
++(((
++**Step2: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
  )))
  (((
--
++123456   Enter Password to have AT access.
  )))
  (((
--(% style="color:#4f81bd" %)**Step1**(%%): Log in TTN, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
++AT+FDR   Reset Parameters to Factory Default, Keys Reserve
  )))
  (((
--[[image:1653360231087-571.png||height="401" width="727"]]
++123456   Enter Password to have AT access.
  )))
--(% 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.
++(((
++AT+NJM=0 Set to ABP mode
++)))
--(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
++(((
++AT+ADR=0 Set the Adaptive Data Rate Off
++)))
--(% 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
++(((
++AT+DR=5  Set Data Rate (Set AT+DR=3 for 915 band)
++)))
++(((
++AT+TDC=60000  Set transmit interval to 60 seconds
++)))
++
++(((
++AT+CHS=868400000 Set transmit frequency to 868.4Mhz
++)))
++
++(((
++AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1
++)))
++
++(((
++ATZ                Reset MCU
++)))
++
++(((
  As shown in below:
++)))
--[[image:1653360498588-932.png||height="485" width="726"]]
++(((
++[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.png]]
++)))
--== 5.4 Can I see counting event in Serial? ==
++(((
++
++)))
  (((
++
++)))
++
++1. (((
++(((
++
++)))
++
++1. (((
++Can I see counting event in Serial?
++)))
++)))
++
++(((
  User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn’t support AT+DEBUG. User can update to latest firmware first.
  )))
  (((
--= 6. Trouble Shooting     =
++
  )))
  (((
++
++)))
++
  (((
--== 6.1 Downlink doesn’t work, how to solve it? ==
++
  )))
++
++1. (((
++(((
++Trouble Shooting
  )))
++1. (((
++Downlink doesn’t work, how to solve it?
++)))
++)))
++
  (((
  Please see this link for how to debug:
--
--[[http:~~/~~/8.211.40.43:8080/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/>>http://8.211.40.43:8080/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/]]
  )))
  (((
@@ -1606,9 +1606,14 @@
  )))
  (((
--== 6.2 Have trouble to upload image. ==
++
  )))
++1.
++11. (((
++Have trouble to upload image.
++)))
++
  (((
  See this link for trouble shooting:
  )))
@@ -1618,9 +1618,14 @@
  )))
  (((
--== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
++
  )))
++1.
++11. (((
++Why I can’t join TTN in US915 /AU915 bands?
++)))
++
  (((
  It might be about the channels mapping. Please see this link for detail:
  )))
@@ -1630,20 +1630,28 @@
  )))
  (((
--= 7. Order Info =
++
  )))
  (((
++
++)))
++
  (((
--**LT-22222-L-XXX:**
++
  )))
++
++1. (((
++Order Info
  )))
  (((
++**For LT-33222-L-XXX or LT-22222-L-XXX:**
++)))
++
  (((
  **XXX:**
  )))
--)))
  * (((
  **EU433**: LT with frequency bands EU433
@@ -1669,84 +1669,59 @@
  * (((
  **IN865**: LT with frequency bands IN865
  )))
++* (((
++**CN779**: LT with frequency bands CN779
++)))
--(((
--* **CN779**: LT with frequency bands CN779
--
--= 8. Packing Info =
++1. (((
++Packing Info
  )))
  (((
--(((
  **Package Includes**:
  )))
--)))
  * (((
--(((
  LT I/O Controller x 1
  )))
--)))
  * (((
--(((
  Stick Antenna for LoRa RF part x 1
  )))
--)))
  * (((
--(((
  Bracket for controller x1
  )))
--)))
  * (((
--(((
  Program cable x 1
  )))
--)))
  (((
--(((
  **Dimension and weight**:
  )))
--)))
--(((
--(((
--* 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
++* (((
++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
++)))
--(((
--= 9. Support =
++1. (((
++Support
  )))
  * (((
--(((
  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.
  )))
--)))
  * (((
--(((
  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]]
++[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
  )))
--
--(((
--= 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]]
--
--* [[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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