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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 57.2
edited by Xiaoling
on 2022/05/24 10:14
Change comment: There is no comment for this version
To version 33.1
edited by Xiaoling
on 2022/05/24 09:38
Change comment: Uploaded new attachment "image-20220524093831-10.png", version {1}

Summary

Details

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Content
... ... @@ -845,7 +845,11 @@
845 845  
846 846  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
847 847  
848 -[[image:image-20220524093351-8.png]]
848 +(% border="1" style="background-color:#f7faff" %)
849 +|Second Byte|Status
850 +|0x01|DO3 set to low
851 +|0x00|DO3 set to high
852 +|0x11|DO3 NO Action
849 849  
850 850  (% style="color:#4f81bd" %)**Sixth and Seventh Byte**:
851 851  
... ... @@ -853,129 +853,147 @@
853 853  
854 854  Device will upload a packet if downlink code executes successfully.
855 855  
856 -**Example payload:**
857 857  
858 -**~1. A9 01 01 01 01 07 D0**
859 859  
862 +Example payload:
863 +
864 +1. A9 01 01 01 01 07 D0
865 +
860 860  DO1 pin & DO2 pin & DO3 pin will be set to Low, last 2 seconds, then change back to original state.
861 861  
862 -**2. A9 01 00 01 11 07 D0**
863 863  
869 +1. A9 01 00 01 11 07 D0
870 +
864 864  DO1 pin set high, DO2 pin set low, DO3 pin no action, last 2 seconds, then change back to original state.
865 865  
866 -**3. A9 00 00 00 00 07 D0**
867 867  
874 +1. A9 00 00 00 00 07 D0
875 +
868 868  DO1 pin & DO2 pin & DO3 pin will be set to high, last 2 seconds, then both change to low.
869 869  
870 -**4. A9 00 11 01 00 07 D0**
871 871  
879 +1. A9 00 11 01 00 07 D0
880 +
872 872  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
873 873  
874 874  
875 -=== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ===
876 876  
885 +
886 +==== Relay ~-~- Control Relay Output RO1/RO2 ====
887 +
877 877  * AT Command:
878 878  
879 879  There is no AT Command to control Relay Output
880 880  
892 +
881 881  * Downlink Payload (prefix 0x03):
882 882  
883 -(% class="box infomessage" %)
884 -(((
885 -**0x03 aa bb     ~/~/ Set RO1/RO2 output**
886 -)))
895 +0x03 aa bb     ~/~/ Set RO1/RO2 output
887 887  
888 -(((
889 889  If payload = 0x030100, it means set RO1 to close and RO2 to open.
890 -)))
891 891  
892 -(((
893 893  01: Close ,  00: Open , 11: No action
894 -)))
895 895  
896 -(((
897 -[[image:image-20220524093724-9.png]]
898 -)))
901 +(% border="1" style="background-color:#f7faff" %)
902 +|Downlink Code|RO1|RO2
903 +|03  00  11|Open|No Action
904 +|03  01  11|Close|No Action
905 +|03  11  00|No Action|Open
906 +|03  11  01|No Action|Close
907 +|03  00  00|Open|Open
908 +|03  01  01|Close|Close
909 +|03  01  00|Close|Open
910 +|03  00  01|Open|Close
899 899  
900 900  Device will upload a packet if downlink code executes successfully.
901 901  
902 902  
903 -==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
915 +==== Relay ~-~- Control Relay Output RO1/RO2 with time control ====
904 904  
905 905  * AT Command:
906 906  
907 907  There is no AT Command to control Relay Output
908 908  
921 +
909 909  * Downlink Payload (prefix 0x05):
910 910  
911 -(% class="box infomessage" %)
912 -(((
913 -**0x05 aa bb cc dd     ~/~/ Set RO1/RO2 relay with time control:**
914 -)))
924 +0x05 aa bb cc dd     ~/~/ Set RO1/RO2 relay with time control:
915 915  
916 916  This is to control the relay output time of relay. Include four bytes:
917 917  
918 -(% style="color:#4f81bd" %)**First Byte **(%%)**:** Type code (0x05)
928 +**First Byte:** Type code (0x05)
919 919  
920 -(% style="color:#4f81bd" %)**Second Byte(aa)**(%%): Inverter Mode
930 +**Second Byte(aa)**: Inverter Mode
921 921  
922 922  01: Relays will change back to original state after timeout.
923 923  
924 924  00: Relays will change to an inverter state after timeout
925 925  
926 -(% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
927 927  
928 -[[image:image-20220524093831-10.png]]
937 +**Third Byte(bb)**: Control Method and Ports status:
929 929  
930 -(% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
939 +(% border="1" style="background-color:#f7faff" %)
940 +|Value|Status
941 +|0x11|RO1 and RO2 to NO
942 +|0x10|RO2 to NO, RO1 to NC
943 +|0x01|RO2 to NC, RO1 to NO
944 +|0x00|RO1 and RO2 to NC.
945 +|0x20|RO1 No Action, RO2 to NC
946 +|0x21|RO1 No Action, RO2 to NO
947 +|0x02|RO1 to NC, RO2 No Action
948 +|0x12|RO1 to NO, RO2 No Action
931 931  
950 +**Fourth / Fifth Bytes (cc)**: Latching time. Unit: ms
951 +
932 932  Device will upload a packet if downlink code executes successfully.
933 933  
954 +
955 +
934 934  **Example payload:**
935 935  
936 -**~1. 05 01 11 07 D0**
958 +1. 05 01 11 07 D0
937 937  
938 938  Relay1 and Relay 2 will be set to NO , last 2 seconds, then change back to original state.
939 939  
940 -**2. 05 01 10 07 D0**
941 941  
963 +1. 05 01 10 07 D0
964 +
942 942  Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then both change back to original state.
943 943  
944 -**3. 05 00 01 07 D0**
945 945  
968 +1. 05 00 01 07 D0
969 +
946 946  Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then relay change to NO, Relay2 change to NC.
947 947  
948 -**4. 05 00 00 07 D0**
949 949  
973 +1. 05 00 00 07 D0
974 +
950 950  Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
951 951  
952 952  
953 -==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
954 954  
955 -When voltage exceed the threshold, count. Feature see [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]
956 956  
980 +
981 +
982 +==== Counting ~-~- Voltage threshold counting ====
983 +
984 +When voltage exceed the threshold, count. Feature see [[MOD4>>path:#MOD4]]
985 +
957 957  * AT Command:
958 958  
959 -(% class="box infomessage" %)
960 -(((
961 -**AT+VOLMAX    ~/~/ See [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]**
962 -)))
988 +AT+VOLMAX    ~/~/ See [[MOD4>>path:#MOD4]]
963 963  
990 +
964 964  * Downlink Payload (prefix 0xA5):
965 965  
966 -(% class="box infomessage" %)
967 -(((
968 -**0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
969 -)))
993 +0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc
970 970  
971 -==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
972 972  
996 +==== Counting ~-~- Pre-configure the Count Number ====
997 +
973 973  * AT Command:
974 974  
975 -(% class="box infomessage" %)
976 -(((
977 -**AT+SETCNT=aa,(bb cc dd ee) **
978 -)))
1000 +AT+SETCNT=aa,(bb cc dd ee)
979 979  
980 980  aa: 1: Set count1,
981 981  
... ... @@ -985,112 +985,115 @@
985 985  
986 986  Bb cc dd ee: number to be set
987 987  
1010 +
988 988  * Downlink Payload (prefix 0xA8):
989 989  
990 -(% class="box infomessage" %)
991 -(((
992 -**0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
993 -)))
1013 +0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)
994 994  
995 -==== 3.4.2.18 Counting ~-~- Clear Counting ====
996 996  
1016 +
1017 +
1018 +
1019 +==== Counting ~-~- Clear Counting ====
1020 +
997 997  Clear counting for counting mode
998 998  
999 999  * AT Command:
1000 1000  
1001 -(% class="box infomessage" %)
1002 -(((
1003 -**AT+CLRCOUNT ~/~/ clear all counting**
1004 -)))
1025 +AT+CLRCOUNT ~/~/ clear all counting
1005 1005  
1027 +
1006 1006  * Downlink Payload (prefix 0xA6):
1007 1007  
1008 -(% class="box infomessage" %)
1009 -(((
1010 -**0x A6 01     ~/~/ clear all counting,**
1011 -)))
1030 +0x A6 01     ~/~/ clear all counting,
1012 1012  
1013 -==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1014 1014  
1033 +
1034 +
1035 +==== Counting ~-~- Change counting mode save time ====
1036 +
1015 1015  * AT Command:
1016 1016  
1017 -(% class="box infomessage" %)
1018 -(((
1019 -**AT+COUTIME=60  ~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)**
1020 -)))
1039 +AT+COUTIME=60  ~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)
1021 1021  
1041 +
1022 1022  * Downlink Payload (prefix 0xA7):
1023 1023  
1024 -(% class="box infomessage" %)
1025 -(((
1026 -**0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,**
1027 -)))
1044 +0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,
1028 1028  
1029 1029  range: aa bb cc:0 to 16777215,  (unit:second)
1030 1030  
1031 -== 3.5 Integrate with Mydevice ==
1032 1032  
1049 +
1050 +
1051 +1.
1052 +11. Integrate with Mydevice
1053 +
1033 1033  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:
1034 1034  
1035 -**Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
1036 1036  
1037 -**Step 2**: To configure the Application to forward data to Mydevices you will need to add integration. To add the Mydevices integration, perform the following steps:
1057 +Step 1: Be sure that your device is programmed and properly connected to the network at this time.
1038 1038  
1039 -[[image:1653356737703-362.png||height="232" width="732"]]
1059 +Step 2: To configure the Application to forward data to Mydevices you will need to add integration. To add the Mydevices integration, perform the following steps:
1040 1040  
1041 -[[image:image-20220524094641-11.png||height="390" width="723"]]
1042 1042  
1062 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
1043 1043  
1044 -[[image:image-20220524094641-12.png||height="402" width="718"]]
1045 1045  
1046 -**Step **3: Create an account or log in Mydevices.
1065 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]]
1047 1047  
1048 -**Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1049 1049  
1068 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image012.png]]
1069 +
1070 +
1071 +
1072 +Step 3: Create an account or log in Mydevices.
1073 +
1074 +Step 4: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.
1075 +
1050 1050  Search under The things network
1051 1051  
1052 -[[image:1653356838789-523.png||height="337" width="740"]]
1078 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
1053 1053  
1080 +
1054 1054  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1055 1055  
1083 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
1056 1056  
1057 -[[image:image-20220524094909-1.png||height="335" width="729"]]
1058 1058  
1059 -[[image:image-20220524094909-2.png||height="337" width="729"]]
1086 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
1060 1060  
1061 -[[image:image-20220524094909-3.png||height="338" width="727"]]
1062 1062  
1063 -[[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
1089 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]
1064 1064  
1065 -[[image:image-20220524094909-5.png||height="341" width="734"]]
1066 1066  
1092 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
1067 1067  
1068 1068  
1095 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
1069 1069  
1070 1070  
1071 -== 3.6 Interface Detail ==
1098 +1.
1099 +11. Interface Detail
1100 +111. Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active )
1072 1072  
1073 -=== 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1074 -
1075 1075  Support NPN Type sensor
1076 1076  
1077 -[[image:1653356991268-289.png]]
1104 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
1078 1078  
1079 -=== 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1080 1080  
1081 -(((
1107 +
1108 +1.
1109 +11.
1110 +111. Digital Input Port: DI1/DI2 ( For LT-22222-L)
1111 +
1082 1082  The DI port of LT-22222-L can support NPN or PNP output sensor.
1083 -)))
1084 1084  
1085 -(((
1086 1086  Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high
1087 -)))
1088 1088  
1089 -[[image:1653357170703-587.png]]
1116 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
1090 1090  
1091 -(((
1092 1092  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1093 -)))
1094 1094  
1095 1095  
1096 1096  **Example1**: Connect to a Low active sensor.
... ... @@ -1100,11 +1100,11 @@
1100 1100  * Connect sensor’s output to DI1-
1101 1101  * Connect sensor’s VCC to DI1+.
1102 1102  
1103 -So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1128 +So when sensor active, the current between NEC2501 pin1 and pin2 is:
1104 1104  
1105 - //IF// = DI1+ / 1K.
1130 + //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1106 1106  
1107 -If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1132 +If DI1+ = 12v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 12mA , So the LT-22222-L will be able to detect this active signal.
1108 1108  
1109 1109  
1110 1110  **Example2**: Connect to a High active sensor.
... ... @@ -1116,12 +1116,12 @@
1116 1116  
1117 1117  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1118 1118  
1119 -[[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:image-20220524095628-8.png]]= DI1+ / 1K.**
1144 + //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1120 1120  
1121 -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:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1146 +If DI1+ = 24v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 24mA , So the LT-22222-L will be able to detect this high active signal.
1122 1122  
1123 1123  
1124 -**Example3**: Connect to a 220v high active sensor.
1149 +**Example3**: Connect to a 220v high active sensor.公司测试一下
1125 1125  
1126 1126  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1127 1127  
... ... @@ -1130,24 +1130,34 @@
1130 1130  
1131 1131  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1132 1132  
1133 - [[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:image-20220524095628-8.png]] = DI1+ / 51K.**
1158 + //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 51K.
1134 1134  
1135 -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.
1160 +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.
1136 1136  
1137 -=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1138 1138  
1163 +1.
1164 +11.
1165 +111. Digital Output Port: DO1/DO2 /DO3
1166 +
1139 1139  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1140 1140  
1141 -[[image:1653357531600-905.png]]
1169 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1142 1142  
1143 -=== 3.6.4 Analog Input Interface ===
1144 1144  
1172 +
1173 +
1174 +1.
1175 +11.
1176 +111. Analog Input Interface
1177 +
1145 1145  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:
1146 1146  
1147 -**AC2 = (IN2 voltage )/12**
1180 +AC2 = (IN2 voltage )/12
1148 1148  
1149 -[[image:1653357592296-182.png]]
1182 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
1150 1150  
1184 +
1185 +
1151 1151  Example to connect a 4~~20mA sensor
1152 1152  
1153 1153  We take the wind speed sensor as an example for reference only.
... ... @@ -1163,221 +1163,170 @@
1163 1163  
1164 1164  Connection diagram:
1165 1165  
1166 -[[image:1653357640609-758.png]]
1201 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.jpg]]
1167 1167  
1168 -[[image:1653357648330-671.png||height="155" width="733"]]
1203 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
1169 1169  
1170 -=== 3.6.5 Relay Output ===
1171 1171  
1172 -(((
1206 +
1207 +1.
1208 +11.
1209 +111. Relay Output
1210 +
1173 1173  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:
1174 -)))
1175 1175  
1176 -[[image:image-20220524100215-9.png]]
1213 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1177 1177  
1178 -[[image:image-20220524100215-10.png||height="382" width="723"]]
1179 1179  
1180 -== 3.7 LEDs Indicators ==
1216 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1181 1181  
1182 -[[image:image-20220524100748-11.png]]
1183 1183  
1184 -= 4. Use AT Command =
1185 1185  
1186 -== 4.1 Access AT Command ==
1187 1187  
1221 +
1222 +1.
1223 +11. LEDs Indicators
1224 +
1225 +(% border="1" style="background-color:#f7faff" %)
1226 +|**LEDs**|**Feature**
1227 +|**PWR**|Always on if there is power
1228 +|**SYS**|After device is powered on, the SYS will **fast blink in GREEN** for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be **on GREEN for 5 seconds. **SYS will **blink Blue** on every upload and **blink Green** once receive a downlink message.
1229 +|**TX**|(((
1230 +Device boot: TX blinks 5 times.
1231 +
1232 +Successful join network: TX ON for 5 seconds.
1233 +
1234 +Transmit a LoRa packet: TX blinks once
1235 +)))
1236 +|**RX**|RX blinks once when receive a packet.
1237 +|**DO1**|
1238 +|**DO2**|
1239 +|**DO3**|
1240 +|**DI2**|(((
1241 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1242 +
1243 +For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1244 +)))
1245 +|**DI2**|(((
1246 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1247 +
1248 +For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1249 +)))
1250 +|**DI3**|For LT-33222-L ONLY: ON when DI3 is low, LOW when DI3 is high
1251 +|**DI2**|(((
1252 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1253 +
1254 +For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1255 +)))
1256 +|**RO1**|
1257 +|**RO2**|
1258 +
1259 +1. Use AT Command
1260 +11. Access AT Command
1261 +
1188 1188  LT supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LT for using AT command, as below.
1189 1189  
1190 -[[image:1653358238933-385.png]]
1264 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1191 1191  
1192 -In PC, User needs to set (% style="color:#4f81bd" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console for LT. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**)(%%) to active it. As shown below:
1193 1193  
1194 -[[image:1653358355238-883.png]]
1267 +In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console for LT. The AT commands are disable by default and need to enter password (default:**123456**) to active it. As shown below:
1195 1195  
1269 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1270 +
1271 +
1196 1196  More detail AT Command manual can be found at [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1197 1197  
1198 -(((
1199 1199  AT+<CMD>?        : Help on <CMD>
1200 -)))
1201 1201  
1202 -(((
1203 1203  AT+<CMD>         : Run <CMD>
1204 -)))
1205 1205  
1206 -(((
1207 1207  AT+<CMD>=<value> : Set the value
1208 -)))
1209 1209  
1210 -(((
1211 1211  AT+<CMD>=?       : Get the value
1212 -)))
1213 1213  
1214 -(((
1215 1215  ATZ: Trig a reset of the MCU
1216 -)))
1217 1217  
1218 -(((
1219 1219  AT+FDR: Reset Parameters to Factory Default, Keys Reserve 
1220 -)))
1221 1221  
1222 -(((
1223 1223  AT+DEUI: Get or Set the Device EUI
1224 -)))
1225 1225  
1226 -(((
1227 1227  AT+DADDR: Get or Set the Device Address
1228 -)))
1229 1229  
1230 -(((
1231 1231  AT+APPKEY: Get or Set the Application Key
1232 -)))
1233 1233  
1234 -(((
1235 1235  AT+NWKSKEY: Get or Set the Network Session Key
1236 -)))
1237 1237  
1238 -(((
1239 1239  AT+APPSKEY: Get or Set the Application Session Key
1240 -)))
1241 1241  
1242 -(((
1243 1243  AT+APPEUI: Get or Set the Application EUI
1244 -)))
1245 1245  
1246 -(((
1247 1247  AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1248 -)))
1249 1249  
1250 -(((
1251 1251  AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1252 -)))
1253 1253  
1254 -(((
1255 1255  AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1256 -)))
1257 1257  
1258 -(((
1259 1259  AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1260 -)))
1261 1261  
1262 -(((
1263 1263  AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1264 -)))
1265 1265  
1266 -(((
1267 1267  AT+RX2FQ: Get or Set the Rx2 window frequency
1268 -)))
1269 1269  
1270 -(((
1271 1271  AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1272 -)))
1273 1273  
1274 -(((
1275 1275  AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1276 -)))
1277 1277  
1278 -(((
1279 1279  AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1280 -)))
1281 1281  
1282 -(((
1283 1283  AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1284 -)))
1285 1285  
1286 -(((
1287 1287  AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1288 -)))
1289 1289  
1290 -(((
1291 1291  AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1292 -)))
1293 1293  
1294 -(((
1295 1295  AT+NWKID: Get or Set the Network ID
1296 -)))
1297 1297  
1298 -(((
1299 1299  AT+FCU: Get or Set the Frame Counter Uplink
1300 -)))
1301 1301  
1302 -(((
1303 1303  AT+FCD: Get or Set the Frame Counter Downlink
1304 -)))
1305 1305  
1306 -(((
1307 1307  AT+CLASS: Get or Set the Device Class
1308 -)))
1309 1309  
1310 -(((
1311 1311  AT+JOIN: Join network
1312 -)))
1313 1313  
1314 -(((
1315 1315  AT+NJS: Get OTAA Join Status
1316 -)))
1317 1317  
1318 -(((
1319 1319  AT+SENDB: Send hexadecimal data along with the application port
1320 -)))
1321 1321  
1322 -(((
1323 1323  AT+SEND: Send text data along with the application port
1324 -)))
1325 1325  
1326 -(((
1327 1327  AT+RECVB: Print last received data in binary format (with hexadecimal values)
1328 -)))
1329 1329  
1330 -(((
1331 1331  AT+RECV: Print last received data in raw format
1332 -)))
1333 1333  
1334 -(((
1335 1335  AT+VER: Get current image version and Frequency Band
1336 -)))
1337 1337  
1338 -(((
1339 1339  AT+CFM: Get or Set the confirmation mode (0-1)
1340 -)))
1341 1341  
1342 -(((
1343 1343  AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1344 -)))
1345 1345  
1346 -(((
1347 1347  AT+SNR: Get the SNR of the last received packet
1348 -)))
1349 1349  
1350 -(((
1351 1351  AT+RSSI: Get the RSSI of the last received packet
1352 -)))
1353 1353  
1354 -(((
1355 1355  AT+TDC: Get or set the application data transmission interval in ms
1356 -)))
1357 1357  
1358 -(((
1359 1359  AT+PORT: Get or set the application port
1360 -)))
1361 1361  
1362 -(((
1363 1363  AT+DISAT: Disable AT commands
1364 -)))
1365 1365  
1366 -(((
1367 1367  AT+PWORD: Set password, max 9 digits
1368 -)))
1369 1369  
1370 -(((
1371 1371  AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1372 -)))
1373 1373  
1374 -(((
1375 1375  AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470
1376 -)))
1377 1377  
1378 -(((
1379 1379  AT+CFG: Print all settings
1380 -)))
1381 1381  
1382 1382  
1383 1383  
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