Last modified by Bei Jinggeng on 2025/01/10 15:06
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From version < 121.2 >
edited by Mengting Qiu
on 2024/09/25 16:13
To version < 111.1 >
edited by Bei Jinggeng
on 2024/02/23 17:47
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135 135  v1.0: Release
136 136  )))
137 137  
138 -
139 -== 1.7 Pin Definitions ==
140 -
141 -
142 -The following diagram shows the V1.2 hardware version.
143 -
144 -[[image:image-20240925161141-1.jpeg||height="412" width="405"]]
145 -
146 -[[image:image-20240925161157-2.jpeg||height="367" width="545"]]
147 -
148 148  
149 149  )))
150 150  )))
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746 746  )))
747 747  
748 748  (((
749 -(% style="color:blue" %)**Example 2:**  (%%)
739 +(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
750 750  )))
751 751  
752 752  (((
753 -Check TTL Sensor return:
743 +User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
754 754  )))
755 755  
756 756  (((
747 +
748 +)))
749 +
757 757  (((
758 -[[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/1654132684752-193.png?rev=1.1||alt="1654132684752-193.png"]](% title="Click and drag to resize" %)​
751 +(((
752 +RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is:  **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
759 759  )))
754 +
755 +
760 760  )))
761 761  
758 +(((
759 + (% aria-label="1654159460680-153.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654159460680-153.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
760 +)))
762 762  
763 763  
763 +
764 764  ==== (% style="color:blue" %)**Set Payload version**(%%) ====
765 765  
766 766  
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1694 1694  1. Check if Modbus-MTU return back the expected result to RS485-LN.
1695 1695  1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
1696 1696  
1697 -[[image:image-20240816112950-1.png||height="382" width="731"]]
1697 +[[image:image-20221130104310-1.png||height="380" width="680"]]
1698 1698  
1699 1699  
1700 1700  Example Connection:
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1816 1816  Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1817 1817  
1818 1818  
1819 -== 7.2 Why customers can't join TTN V3 in US915 /AU915 bands? ==
1819 +== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1820 1820  
1821 1821  
1822 1822  It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1823 1823  
1824 1824  
1825 -== 7.3 Why can't customers see the device's data in the server when the data is too long? ==
1826 -
1827 -This is due to the limitation of the lorawan protocol, and the fixed DR needs to be adjusted to improve this problem.
1828 -
1829 -Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
1830 -
1831 -[[lora-alliance.org/wp-content/uploads/2021/05/RP002-1.0.3-FINAL-1.pdf>>url:https://lora-alliance.org/wp-content/uploads/2021/05/RP002-1.0.3-FINAL-1.pdf]]
1832 -
1833 -Example:
1834 -
1835 -[[image:image-20240620145456-1.png]]
1836 -
1837 -Please refer to the following command to fix DR
1838 -
1839 -AT+ADR=0
1840 -
1841 -AT+DR=3
1842 -
1843 -Downlink command:
1844 -
1845 -[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate]]
1846 -
1847 -
1848 -
1849 1849  = 8. Order Info =
1850 1850  
1851 1851  
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