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 < 178.1 >

edited by Dilisi S
on 2024/11/09 02:59

To version < 179.1 >

edited by Dilisi S
on 2024/11/09 05:29

Change comment: Nov 8 edit FAQ and Troubleshooting sections

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@@ -205,7 +205,6 @@
  * Create an application if you do not have one yet.
  * Register LT-22222-L with that application. Two registration options are available:
--(% class="wikigeneratedid" %)
  ====   ====
  ==== 3.2.2.1 Using the LoRaWAN Device Repository ====
@@ -228,7 +228,6 @@
  [[image:lt-22222-l-dev-repo-reg-p2.png||height="625" width="1000"]]
--(% class="wikigeneratedid" %)
  ====   ====
  ==== 3.2.2.2 Entering device information manually ====
@@ -301,7 +301,6 @@
  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
--
  The uplink messages are sent over LoRaWAN FPort 2. By default, an uplink message is sent every 10 minutes.
  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
@@ -2102,31 +2102,38 @@
  = 6. FAQ =
--== 6.1 How to upgrade the firmware image? ==
++== 6.1 How to update the firmware? ==
--The LT-22222-L I/O Controller is shipped with a 3.5mm cable, which is used to upload an image to LT in order to:
++Dragino frequently releases firmware updates for the LT-22222-L.
--* Support new features.
--* Fix bugs.
--* Change LoRaWAN bands.
++Updating your LT-22222-L with the latest firmware version helps to:
--Below is the hardware connection setup for uploading an firmware image to the LT-22222-L:
++* Support new features
++* Fix bugs
++* Change LoRaWAN frequency bands
--(% class="box infomessage" %)
--(((
--The latest firmware version available for the LT-22222-L is v1.6.1 at the time of this writing.
--)))
++You will need the following things before proceeding:
++* 3.5mm programming cable (included with the LT-22222-L as an additional accessory)
++* USB to TTL adapter
++* Download and install the [[STM32 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]]. (replaced by STM32CubeProgrammer)
++* Download the latest firmware image from [[LT-22222-L firmware image files>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACrbrDN0AqLHbBat0ViWx5Da/LT-22222-L/Firmware?dl=0&subfolder_nav_tracking=1]]. Check the file name of the firmware to find the correct region.
++
++{{info}}
++As of this writing, the latest firmware version available for the LT-22222-L is v1.6.1.
++{{/info}}
++
++Below is the hardware setup for uploading a firmware image to the LT-22222-L:
++
++
  [[image:1653359603330-121.png]]
--(((
--(% style="color:#0000ff" %)**Step 1**(%%)**:** Download the F[[lash 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]]. (replaced by STM32CubeProgrammer)
--(% style="color:#0000ff" %)**Step 2**(%%)**:** Download the [[LT Image files>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACrbrDN0AqLHbBat0ViWx5Da/LT-22222-L/Firmware?dl=0&subfolder_nav_tracking=1]].
--(% style="color:#0000ff" %)**Step 3**(%%)**:** Open the Flash Loader and choose the correct COM port to update.
++Start the STM32 Flash Loader and choose the correct COM port to update.
  (((
++(((
  (% style="color:blue" %)**For LT-22222-L**(%%):
  Hold down the **PRO** button, then briefly press the **RST** button. The **DO1** LED will change from OFF to ON. When the **DO1** LED is ON, it indicates that the device is in firmware download mode.
@@ -2151,7 +2151,7 @@
  (((
  (((
--== 6.2 How to change the LoRa Frequency Bands/Region? ==
++== 6.2 How to change the LoRaWAN frequency band/region? ==
  )))
@@ -2164,7 +2164,7 @@
  (((
--== 6.3 How to set up LT to work with a Single Channel Gateway, such as LG01/LG02? ==
++== 6.3 How to setup LT to work with a Single Channel Gateway, such as LG01/LG02? ==
  )))
@@ -2241,61 +2241,56 @@
  Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/]]
--== 6.5 Can I see the counting event in Serial? ==
++== 6.5 Can I see the counting event in the serial output? ==
  (((
--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.
++You can run the AT command AT+DEBUG to view the counting event in the serial output. If the firmware is too old and doesn’t support AT+DEBUG, update to the latest firmware first.
  == 6.6 Can I use point-to-point communication with LT-22222-L? ==
--Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]. this is [[firmware>>https://github.com/dragino/LT-22222-L/releases]].
--
--
++Yes, you can. Please refer to the [[Point-to-Point Communication of LT-22222-L>>https://wiki.dragino.com/xwiki/bin/view/Main/%20Point%20to%20Point%20Communication%20of%20LT-22222-L/]] page. The firmware that supports point-to-point communication can be found [[here>>https://github.com/dragino/LT-22222-L/releases]].
  )))
  (((
--== 6.7 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
++== 6.7 Why does the relay output default to an open relay after the LT-22222-L is powered off? ==
--If the device is not shut down, but directly powered off.
++* If the device is not properly shut down and is directly powered off.
++* It will default to a power-off state.
++* In modes 2 to 5, the DO/RO status and pulse count are saved to flash memory.
++* After a restart, the status before the power failure will be read from flash.
--It will default that this is a power-off state.
--In modes 2 to 5, DO RO status and pulse count are saved in flash.
++== 6.8 Can I setup LT-22222-L as a NC (Normally Closed) relay? ==
--After restart, the status before power failure will be read from flash.
++The LT-22222-L's built-in relay is Normally Open (NO). You can use an external relay to achieve a Normally Closed (NC) configuration. The circuit diagram is shown below:
--== 6.8 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
--
--LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
--
--
  [[image:image-20221006170630-1.png||height="610" width="945"]]
--== 6.9 Can LT22222-L save RO state? ==
++== 6.9 Can the LT-22222-L save the RO state? ==
--Firmware version needs to be no less than 1.6.0.
++The firmware version must be at least 1.6.0.
--== 6.10 Why does the LT22222 always report 15.585V when measuring AVI? ==
++== 6.10 Why does the LT-22222-L always report 15.585V when measuring the AVI? ==
--It is likely that the GND is not connected during the measurement, or the wire connected to the GND is loose.
++It is likely that the GND is not connected during the measurement, or that the wire connected to the GND is loose.
--= 7. Trouble Shooting =
++= 7. Troubleshooting =
  )))
  (((
  (((
--== 7.1 Downlink doesn't work, how to solve it? ==
++== 7.1 Downlink isn't working. How can I solve this? ==
  )))
@@ -2302,42 +2302,42 @@
  )))
  (((
--Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
++Please refer to this link for debugging instructions: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
  )))
  (((
--== 7.2 Have trouble to upload image. ==
++== 7.2 Having trouble uploading an image? ==
  )))
  (((
--See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
++Please refer to this link for troubleshooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
  )))
  (((
--== 7.3 Why I can't join TTN in US915 /AU915 bands? ==
++== 7.3 Why can't I join TTN in the US915 /AU915 bands? ==
  )))
  (((
--It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
++It might be related to the channel mapping. [[Please refer to this link for details.>>https://github.com/dragino/LT-22222-L/releases||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
  )))
--== 7.4 Why can LT22222 perform Uplink normally, but cannot receive Downlink? ==
++== 7.4 Why can the LT-22222-L perform Uplink normally, but cannot receive Downlink? ==
--The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue state.
--Use this command to bring their counts back together: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resetsthedownlinkpacketcount"]]
++The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue.
++Use this command to synchronize their counts: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resetsthedownlinkpacketcount"]]
--= 8. Order Info =
++= 8. Ordering information =
  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
@@ -2344,43 +2344,44 @@
  (% style="color:#4f81bd" %)**XXX:**
--* (% style="color:red" %)**EU433**(%%):   LT with frequency bands EU433
--* (% style="color:red" %)**EU868**(%%):   LT with frequency bands EU868
--* (% style="color:red" %)**KR920**(%%):   LT with frequency bands KR920
--* (% style="color:red" %)**CN470**(%%):  LT with frequency bands CN470
--* (% style="color:red" %)**AS923**(%%):   LT with frequency bands AS923
--* (% style="color:red" %)**AU915**(%%):  LT with frequency bands AU915
--* (% style="color:red" %)**US915**(%%):  LT with frequency bands US915
--* (% style="color:red" %)**IN865**(%%):   LT with frequency bands IN865
--* (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
++* (% style="color:red" %)**EU433**(%%): LT with frequency bands EU433
++* (% style="color:red" %)**EU868**(%%): LT with frequency bands EU868
++* (% style="color:red" %)**KR920**(%%): LT with frequency bands KR920
++* (% style="color:red" %)**CN470**(%%): LT with frequency bands CN470
++* (% style="color:red" %)**AS923**(%%): LT with frequency bands AS923
++* (% style="color:red" %)**AU915**(%%): LT with frequency bands AU915
++* (% style="color:red" %)**US915**(%%): LT with frequency bands US915
++* (% style="color:red" %)**IN865**(%%): LT with frequency bands IN865
++* (% style="color:red" %)**CN779**(%%): LT with frequency bands CN779
--= 9. Packing Info =
++= 9. Packing information =
--**Package Includes**:
++**Package includes**:
++
  * LT-22222-L I/O Controller x 1
  * Stick Antenna for LoRa RF part x 1
  * Bracket for controller x1
--* Program cable x 1
++* 3.5mm Programming cable x 1
  **Dimension and weight**:
  * Device Size: 13.5 x 7 x 3 cm
--* Device Weight: 105g
++* Device Weight: 105 g
  * Package Size / pcs : 14.5 x 8 x 5 cm
--* Weight / pcs : 170g
++* Weight / pcs : 170 g
++
  = 10. 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.
++Support is available Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different time zones, we cannot offer live support. However, your questions will be answered as soon as possible within the aforementioned 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.cc>>mailto:Support@dragino.cc]]
++Please provide as much information as possible regarding your inquiry (e.g., product models, a detailed description of the problem, steps to replicate it, etc.) and send an email to [[support@dragino.cc>>mailto:support@dragino.cc]]
--
  )))

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