Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 31.1 >
edited by Xiaoling
on 2022/05/24 09:33
To version < 57.2 >
edited by Xiaoling
on 2022/05/24 10:14
>
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -845,11 +845,7 @@
845 845  
846 846  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
847 847  
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
848 +[[image:image-20220524093351-8.png]]
853 853  
854 854  (% style="color:#4f81bd" %)**Sixth and Seventh Byte**:
855 855  
... ... @@ -857,147 +857,129 @@
857 857  
858 858  Device will upload a packet if downlink code executes successfully.
859 859  
856 +**Example payload:**
860 860  
858 +**~1. A9 01 01 01 01 07 D0**
861 861  
862 -Example payload:
863 -
864 -1. A9 01 01 01 01 07 D0
865 -
866 866  DO1 pin & DO2 pin & DO3 pin will be set to Low, last 2 seconds, then change back to original state.
867 867  
862 +**2. A9 01 00 01 11 07 D0**
868 868  
869 -1. A9 01 00 01 11 07 D0
870 -
871 871  DO1 pin set high, DO2 pin set low, DO3 pin no action, last 2 seconds, then change back to original state.
872 872  
866 +**3. A9 00 00 00 00 07 D0**
873 873  
874 -1. A9 00 00 00 00 07 D0
875 -
876 876  DO1 pin & DO2 pin & DO3 pin will be set to high, last 2 seconds, then both change to low.
877 877  
870 +**4. A9 00 11 01 00 07 D0**
878 878  
879 -1. A9 00 11 01 00 07 D0
880 -
881 881  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
882 882  
883 883  
875 +=== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ===
884 884  
885 -
886 -==== Relay ~-~- Control Relay Output RO1/RO2 ====
887 -
888 888  * AT Command:
889 889  
890 890  There is no AT Command to control Relay Output
891 891  
892 -
893 893  * Downlink Payload (prefix 0x03):
894 894  
895 -0x03 aa bb     ~/~/ Set RO1/RO2 output
883 +(% class="box infomessage" %)
884 +(((
885 +**0x03 aa bb     ~/~/ Set RO1/RO2 output**
886 +)))
896 896  
888 +(((
897 897  If payload = 0x030100, it means set RO1 to close and RO2 to open.
890 +)))
898 898  
892 +(((
899 899  01: Close ,  00: Open , 11: No action
894 +)))
900 900  
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
896 +(((
897 +[[image:image-20220524093724-9.png]]
898 +)))
911 911  
912 912  Device will upload a packet if downlink code executes successfully.
913 913  
914 914  
915 -==== Relay ~-~- Control Relay Output RO1/RO2 with time control ====
903 +==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
916 916  
917 917  * AT Command:
918 918  
919 919  There is no AT Command to control Relay Output
920 920  
921 -
922 922  * Downlink Payload (prefix 0x05):
923 923  
924 -0x05 aa bb cc dd     ~/~/ Set RO1/RO2 relay with time control:
911 +(% class="box infomessage" %)
912 +(((
913 +**0x05 aa bb cc dd     ~/~/ Set RO1/RO2 relay with time control:**
914 +)))
925 925  
926 926  This is to control the relay output time of relay. Include four bytes:
927 927  
928 -**First Byte:** Type code (0x05)
918 +(% style="color:#4f81bd" %)**First Byte **(%%)**:** Type code (0x05)
929 929  
930 -**Second Byte(aa)**: Inverter Mode
920 +(% style="color:#4f81bd" %)**Second Byte(aa)**(%%): Inverter Mode
931 931  
932 932  01: Relays will change back to original state after timeout.
933 933  
934 934  00: Relays will change to an inverter state after timeout
935 935  
926 +(% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
936 936  
937 -**Third Byte(bb)**: Control Method and Ports status:
928 +[[image:image-20220524093831-10.png]]
938 938  
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
930 +(% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
949 949  
950 -**Fourth / Fifth Bytes (cc)**: Latching time. Unit: ms
951 -
952 952  Device will upload a packet if downlink code executes successfully.
953 953  
954 -
955 -
956 956  **Example payload:**
957 957  
958 -1. 05 01 11 07 D0
936 +**~1. 05 01 11 07 D0**
959 959  
960 960  Relay1 and Relay 2 will be set to NO , last 2 seconds, then change back to original state.
961 961  
940 +**2. 05 01 10 07 D0**
962 962  
963 -1. 05 01 10 07 D0
964 -
965 965  Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then both change back to original state.
966 966  
944 +**3. 05 00 01 07 D0**
967 967  
968 -1. 05 00 01 07 D0
969 -
970 970  Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then relay change to NO, Relay2 change to NC.
971 971  
948 +**4. 05 00 00 07 D0**
972 972  
973 -1. 05 00 00 07 D0
974 -
975 975  Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
976 976  
977 977  
953 +==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
978 978  
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]]
979 979  
980 -
981 -
982 -==== Counting ~-~- Voltage threshold counting ====
983 -
984 -When voltage exceed the threshold, count. Feature see [[MOD4>>path:#MOD4]]
985 -
986 986  * AT Command:
987 987  
988 -AT+VOLMAX    ~/~/ See [[MOD4>>path:#MOD4]]
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 +)))
989 989  
990 -
991 991  * Downlink Payload (prefix 0xA5):
992 992  
993 -0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc
966 +(% class="box infomessage" %)
967 +(((
968 +**0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
969 +)))
994 994  
971 +==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
995 995  
996 -==== Counting ~-~- Pre-configure the Count Number ====
997 -
998 998  * AT Command:
999 999  
1000 -AT+SETCNT=aa,(bb cc dd ee)
975 +(% class="box infomessage" %)
976 +(((
977 +**AT+SETCNT=aa,(bb cc dd ee) **
978 +)))
1001 1001  
1002 1002  aa: 1: Set count1,
1003 1003  
... ... @@ -1007,115 +1007,112 @@
1007 1007  
1008 1008  Bb cc dd ee: number to be set
1009 1009  
1010 -
1011 1011  * Downlink Payload (prefix 0xA8):
1012 1012  
1013 -0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)
990 +(% class="box infomessage" %)
991 +(((
992 +**0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
993 +)))
1014 1014  
995 +==== 3.4.2.18 Counting ~-~- Clear Counting ====
1015 1015  
1016 -
1017 -
1018 -
1019 -==== Counting ~-~- Clear Counting ====
1020 -
1021 1021  Clear counting for counting mode
1022 1022  
1023 1023  * AT Command:
1024 1024  
1025 -AT+CLRCOUNT ~/~/ clear all counting
1001 +(% class="box infomessage" %)
1002 +(((
1003 +**AT+CLRCOUNT ~/~/ clear all counting**
1004 +)))
1026 1026  
1027 -
1028 1028  * Downlink Payload (prefix 0xA6):
1029 1029  
1030 -0x A6 01     ~/~/ clear all counting,
1008 +(% class="box infomessage" %)
1009 +(((
1010 +**0x A6 01     ~/~/ clear all counting,**
1011 +)))
1031 1031  
1013 +==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1032 1032  
1033 -
1034 -
1035 -==== Counting ~-~- Change counting mode save time ====
1036 -
1037 1037  * AT Command:
1038 1038  
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)
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 +)))
1040 1040  
1041 -
1042 1042  * Downlink Payload (prefix 0xA7):
1043 1043  
1044 -0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,
1024 +(% class="box infomessage" %)
1025 +(((
1026 +**0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,**
1027 +)))
1045 1045  
1046 1046  range: aa bb cc:0 to 16777215,  (unit:second)
1047 1047  
1031 +== 3.5 Integrate with Mydevice ==
1048 1048  
1049 -
1050 -
1051 -1.
1052 -11. Integrate with Mydevice
1053 -
1054 1054  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:
1055 1055  
1035 +**Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
1056 1056  
1057 -Step 1: Be sure that your device is programmed and properly connected to the network at this time.
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:
1058 1058  
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:
1039 +[[image:1653356737703-362.png||height="232" width="732"]]
1060 1060  
1041 +[[image:image-20220524094641-11.png||height="390" width="723"]]
1061 1061  
1062 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
1063 1063  
1044 +[[image:image-20220524094641-12.png||height="402" width="718"]]
1064 1064  
1065 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]]
1046 +**Step **3: Create an account or log in Mydevices.
1066 1066  
1048 +**Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1067 1067  
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 -
1076 1076  Search under The things network
1077 1077  
1078 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
1052 +[[image:1653356838789-523.png||height="337" width="740"]]
1079 1079  
1080 -
1081 1081  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1082 1082  
1083 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
1084 1084  
1057 +[[image:image-20220524094909-1.png||height="335" width="729"]]
1085 1085  
1086 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
1059 +[[image:image-20220524094909-2.png||height="337" width="729"]]
1087 1087  
1061 +[[image:image-20220524094909-3.png||height="338" width="727"]]
1088 1088  
1089 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]
1063 +[[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
1090 1090  
1065 +[[image:image-20220524094909-5.png||height="341" width="734"]]
1091 1091  
1092 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
1093 1093  
1094 1094  
1095 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
1096 1096  
1097 1097  
1098 -1.
1099 -11. Interface Detail
1100 -111. Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active )
1071 +== 3.6 Interface Detail ==
1101 1101  
1073 +=== 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1074 +
1102 1102  Support NPN Type sensor
1103 1103  
1104 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
1077 +[[image:1653356991268-289.png]]
1105 1105  
1079 +=== 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1106 1106  
1107 -
1108 -1.
1109 -11.
1110 -111. Digital Input Port: DI1/DI2 ( For LT-22222-L)
1111 -
1081 +(((
1112 1112  The DI port of LT-22222-L can support NPN or PNP output sensor.
1083 +)))
1113 1113  
1085 +(((
1114 1114  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 +)))
1115 1115  
1116 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
1089 +[[image:1653357170703-587.png]]
1117 1117  
1091 +(((
1118 1118  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1093 +)))
1119 1119  
1120 1120  
1121 1121  **Example1**: Connect to a Low active sensor.
... ... @@ -1125,11 +1125,11 @@
1125 1125  * Connect sensor’s output to DI1-
1126 1126  * Connect sensor’s VCC to DI1+.
1127 1127  
1128 -So when sensor active, the current between NEC2501 pin1 and pin2 is:
1103 +So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1129 1129  
1130 - //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1105 + //IF// = DI1+ / 1K.
1131 1131  
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.
1107 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1133 1133  
1134 1134  
1135 1135  **Example2**: Connect to a High active sensor.
... ... @@ -1141,12 +1141,12 @@
1141 1141  
1142 1142  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1143 1143  
1144 - //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
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.**
1145 1145  
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.
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.
1147 1147  
1148 1148  
1149 -**Example3**: Connect to a 220v high active sensor.公司测试一下
1124 +**Example3**: Connect to a 220v high active sensor.
1150 1150  
1151 1151  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1152 1152  
... ... @@ -1155,34 +1155,24 @@
1155 1155  
1156 1156  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1157 1157  
1158 - //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 51K.
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.**
1159 1159  
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.
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.
1161 1161  
1137 +=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1162 1162  
1163 -1.
1164 -11.
1165 -111. Digital Output Port: DO1/DO2 /DO3
1166 -
1167 1167  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1168 1168  
1169 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1141 +[[image:1653357531600-905.png]]
1170 1170  
1143 +=== 3.6.4 Analog Input Interface ===
1171 1171  
1172 -
1173 -
1174 -1.
1175 -11.
1176 -111. Analog Input Interface
1177 -
1178 1178  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:
1179 1179  
1180 -AC2 = (IN2 voltage )/12
1147 +**AC2 = (IN2 voltage )/12**
1181 1181  
1182 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
1149 +[[image:1653357592296-182.png]]
1183 1183  
1184 -
1185 -
1186 1186  Example to connect a 4~~20mA sensor
1187 1187  
1188 1188  We take the wind speed sensor as an example for reference only.
... ... @@ -1198,170 +1198,221 @@
1198 1198  
1199 1199  Connection diagram:
1200 1200  
1201 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.jpg]]
1166 +[[image:1653357640609-758.png]]
1202 1202  
1203 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
1168 +[[image:1653357648330-671.png||height="155" width="733"]]
1204 1204  
1170 +=== 3.6.5 Relay Output ===
1205 1205  
1206 -
1207 -1.
1208 -11.
1209 -111. Relay Output
1210 -
1172 +(((
1211 1211  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 +)))
1212 1212  
1213 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1176 +[[image:image-20220524100215-9.png]]
1214 1214  
1178 +[[image:image-20220524100215-10.png||height="382" width="723"]]
1215 1215  
1216 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1180 +== 3.7 LEDs Indicators ==
1217 1217  
1182 +[[image:image-20220524100748-11.png]]
1218 1218  
1184 += 4. Use AT Command =
1219 1219  
1186 +== 4.1 Access AT Command ==
1220 1220  
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 -
1262 1262  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.
1263 1263  
1264 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1190 +[[image:1653358238933-385.png]]
1265 1265  
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:
1266 1266  
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:
1194 +[[image:1653358355238-883.png]]
1268 1268  
1269 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1270 -
1271 -
1272 1272  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/]]
1273 1273  
1198 +(((
1274 1274  AT+<CMD>?        : Help on <CMD>
1200 +)))
1275 1275  
1202 +(((
1276 1276  AT+<CMD>         : Run <CMD>
1204 +)))
1277 1277  
1206 +(((
1278 1278  AT+<CMD>=<value> : Set the value
1208 +)))
1279 1279  
1210 +(((
1280 1280  AT+<CMD>=?       : Get the value
1212 +)))
1281 1281  
1214 +(((
1282 1282  ATZ: Trig a reset of the MCU
1216 +)))
1283 1283  
1218 +(((
1284 1284  AT+FDR: Reset Parameters to Factory Default, Keys Reserve 
1220 +)))
1285 1285  
1222 +(((
1286 1286  AT+DEUI: Get or Set the Device EUI
1224 +)))
1287 1287  
1226 +(((
1288 1288  AT+DADDR: Get or Set the Device Address
1228 +)))
1289 1289  
1230 +(((
1290 1290  AT+APPKEY: Get or Set the Application Key
1232 +)))
1291 1291  
1234 +(((
1292 1292  AT+NWKSKEY: Get or Set the Network Session Key
1236 +)))
1293 1293  
1238 +(((
1294 1294  AT+APPSKEY: Get or Set the Application Session Key
1240 +)))
1295 1295  
1242 +(((
1296 1296  AT+APPEUI: Get or Set the Application EUI
1244 +)))
1297 1297  
1246 +(((
1298 1298  AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1248 +)))
1299 1299  
1250 +(((
1300 1300  AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1252 +)))
1301 1301  
1254 +(((
1302 1302  AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1256 +)))
1303 1303  
1258 +(((
1304 1304  AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1260 +)))
1305 1305  
1262 +(((
1306 1306  AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1264 +)))
1307 1307  
1266 +(((
1308 1308  AT+RX2FQ: Get or Set the Rx2 window frequency
1268 +)))
1309 1309  
1270 +(((
1310 1310  AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1272 +)))
1311 1311  
1274 +(((
1312 1312  AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1276 +)))
1313 1313  
1278 +(((
1314 1314  AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1280 +)))
1315 1315  
1282 +(((
1316 1316  AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1284 +)))
1317 1317  
1286 +(((
1318 1318  AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1288 +)))
1319 1319  
1290 +(((
1320 1320  AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1292 +)))
1321 1321  
1294 +(((
1322 1322  AT+NWKID: Get or Set the Network ID
1296 +)))
1323 1323  
1298 +(((
1324 1324  AT+FCU: Get or Set the Frame Counter Uplink
1300 +)))
1325 1325  
1302 +(((
1326 1326  AT+FCD: Get or Set the Frame Counter Downlink
1304 +)))
1327 1327  
1306 +(((
1328 1328  AT+CLASS: Get or Set the Device Class
1308 +)))
1329 1329  
1310 +(((
1330 1330  AT+JOIN: Join network
1312 +)))
1331 1331  
1314 +(((
1332 1332  AT+NJS: Get OTAA Join Status
1316 +)))
1333 1333  
1318 +(((
1334 1334  AT+SENDB: Send hexadecimal data along with the application port
1320 +)))
1335 1335  
1322 +(((
1336 1336  AT+SEND: Send text data along with the application port
1324 +)))
1337 1337  
1326 +(((
1338 1338  AT+RECVB: Print last received data in binary format (with hexadecimal values)
1328 +)))
1339 1339  
1330 +(((
1340 1340  AT+RECV: Print last received data in raw format
1332 +)))
1341 1341  
1334 +(((
1342 1342  AT+VER: Get current image version and Frequency Band
1336 +)))
1343 1343  
1338 +(((
1344 1344  AT+CFM: Get or Set the confirmation mode (0-1)
1340 +)))
1345 1345  
1342 +(((
1346 1346  AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1344 +)))
1347 1347  
1346 +(((
1348 1348  AT+SNR: Get the SNR of the last received packet
1348 +)))
1349 1349  
1350 +(((
1350 1350  AT+RSSI: Get the RSSI of the last received packet
1352 +)))
1351 1351  
1354 +(((
1352 1352  AT+TDC: Get or set the application data transmission interval in ms
1356 +)))
1353 1353  
1358 +(((
1354 1354  AT+PORT: Get or set the application port
1360 +)))
1355 1355  
1362 +(((
1356 1356  AT+DISAT: Disable AT commands
1364 +)))
1357 1357  
1366 +(((
1358 1358  AT+PWORD: Set password, max 9 digits
1368 +)))
1359 1359  
1370 +(((
1360 1360  AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1372 +)))
1361 1361  
1374 +(((
1362 1362  AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470
1376 +)))
1363 1363  
1378 +(((
1364 1364  AT+CFG: Print all settings
1380 +)))
1365 1365  
1366 1366  
1367 1367  
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