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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 66.20
edited by Xiaoling
on 2022/05/24 13:53
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
... ... @@ -45,114 +45,44 @@
45 45  
46 46  == 1.2  Specifications ==
47 47  
48 -(((
49 49  **Hardware System:**
50 -)))
51 51  
52 -* (((
53 -STM32L072CZT6 MCU
54 -)))
55 -* (((
56 -SX1276/78 Wireless Chip 
57 -)))
58 -* (((
59 -(((
60 -Power Consumption:
61 -)))
50 +* STM32L072CZT6 MCU
51 +* SX1276/78 Wireless Chip 
52 +* Power Consumption:
53 +** Idle: 4mA@12v
54 +** 20dB Transmit: 34mA@12v
62 62  
63 -* (((
64 -Idle: 4mA@12v
65 -)))
66 -* (((
67 -20dB Transmit: 34mA@12v
68 -)))
69 -)))
70 -
71 -(((
72 72  **Interface for Model: LT22222-L:**
73 -)))
74 74  
75 -* (((
76 -2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
77 -)))
78 -* (((
79 -2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
80 -)))
81 -* (((
82 -2 x Relay Output (5A@250VAC / 30VDC)
83 -)))
84 -* (((
85 -2 x 0~~20mA Analog Input (res:0.01mA)
86 -)))
87 -* (((
88 -2 x 0~~30V Analog Input (res:0.01v)
89 -)))
90 -* (((
91 -Power Input 7~~ 24V DC. 
92 -)))
58 +* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
59 +* 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
60 +* 2 x Relay Output (5A@250VAC / 30VDC)
61 +* 2 x 0~~20mA Analog Input (res:0.01mA)
62 +* 2 x 0~~30V Analog Input (res:0.01v)
63 +* Power Input 7~~ 24V DC. 
93 93  
94 -(((
95 95  **LoRa Spec:**
96 -)))
97 97  
98 -* (((
99 -(((
100 -Frequency Range:
101 -)))
67 +* Frequency Range:
68 +** Band 1 (HF): 862 ~~ 1020 Mhz
69 +** Band 2 (LF): 410 ~~ 528 Mhz
70 +* 168 dB maximum link budget.
71 +* +20 dBm - 100 mW constant RF output vs.
72 +* +14 dBm high efficiency PA.
73 +* Programmable bit rate up to 300 kbps.
74 +* High sensitivity: down to -148 dBm.
75 +* Bullet-proof front end: IIP3 = -12.5 dBm.
76 +* Excellent blocking immunity.
77 +* Low RX current of 10.3 mA, 200 nA register retention.
78 +* Fully integrated synthesizer with a resolution of 61 Hz.
79 +* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
80 +* Built-in bit synchronizer for clock recovery.
81 +* Preamble detection.
82 +* 127 dB Dynamic Range RSSI.
83 +* Automatic RF Sense and CAD with ultra-fast AFC.
84 +* Packet engine up to 256 bytes with CRC.
102 102  
103 -* (((
104 -Band 1 (HF): 862 ~~ 1020 Mhz
105 -)))
106 -* (((
107 -Band 2 (LF): 410 ~~ 528 Mhz
108 -)))
109 -)))
110 -* (((
111 -168 dB maximum link budget.
112 -)))
113 -* (((
114 -+20 dBm - 100 mW constant RF output vs.
115 -)))
116 -* (((
117 -+14 dBm high efficiency PA.
118 -)))
119 -* (((
120 -Programmable bit rate up to 300 kbps.
121 -)))
122 -* (((
123 -High sensitivity: down to -148 dBm.
124 -)))
125 -* (((
126 -Bullet-proof front end: IIP3 = -12.5 dBm.
127 -)))
128 -* (((
129 -Excellent blocking immunity.
130 -)))
131 -* (((
132 -Low RX current of 10.3 mA, 200 nA register retention.
133 -)))
134 -* (((
135 -Fully integrated synthesizer with a resolution of 61 Hz.
136 -)))
137 -* (((
138 -FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
139 -)))
140 -* (((
141 -Built-in bit synchronizer for clock recovery.
142 -)))
143 -* (((
144 -Preamble detection.
145 -)))
146 -* (((
147 -127 dB Dynamic Range RSSI.
148 -)))
149 -* (((
150 -Automatic RF Sense and CAD with ultra-fast AFC.
151 -)))
152 -* (((
153 -Packet engine up to 256 bytes with CRC.
154 -)))
155 -
156 156  == 1.3 Features ==
157 157  
158 158  * LoRaWAN Class A & Class C protocol
... ... @@ -201,7 +201,7 @@
201 201  
202 202  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. 
203 203  
204 -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.
134 +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.
205 205  
206 206  3.2 Example to join LoRaWAN network
207 207  
... ... @@ -397,7 +397,7 @@
397 397  **ATZ**
398 398  )))
399 399  
400 -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]].
330 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
401 401  
402 402  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
403 403  
... ... @@ -432,7 +432,7 @@
432 432  )))
433 433  
434 434  
435 -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]].
365 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
436 436  
437 437  **Plus below command for AVI1 Counting:**
438 438  
... ... @@ -484,7 +484,7 @@
484 484  **ATZ**
485 485  )))
486 486  
487 -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]].
417 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
488 488  
489 489  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
490 490  
... ... @@ -533,7 +533,7 @@
533 533  
534 534  **Downlink Command to set Trigger Condition**
535 535  
536 -Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
466 +Type Code: 0xAA. Downlink command same as AT Command [[AT+AVLIM, AT+ACLIM>>path:#AT_Trigger]]
537 537  
538 538  Format: AA xx yy1 yy1 yy2 yy2 yy3 yy3 yy4 yy4
539 539  
... ... @@ -553,7 +553,7 @@
553 553  
554 554  Same as AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
555 555  
556 -**Example2**: AA 02 01 00
486 +Example2: AA 02 01 00
557 557  
558 558  Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
559 559  
... ... @@ -915,7 +915,11 @@
915 915  
916 916  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
917 917  
918 -[[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
919 919  
920 920  (% style="color:#4f81bd" %)**Sixth and Seventh Byte**:
921 921  
... ... @@ -923,129 +923,147 @@
923 923  
924 924  Device will upload a packet if downlink code executes successfully.
925 925  
926 -**Example payload:**
927 927  
928 -**~1. A9 01 01 01 01 07 D0**
929 929  
862 +Example payload:
863 +
864 +1. A9 01 01 01 01 07 D0
865 +
930 930  DO1 pin & DO2 pin & DO3 pin will be set to Low, last 2 seconds, then change back to original state.
931 931  
932 -**2. A9 01 00 01 11 07 D0**
933 933  
869 +1. A9 01 00 01 11 07 D0
870 +
934 934  DO1 pin set high, DO2 pin set low, DO3 pin no action, last 2 seconds, then change back to original state.
935 935  
936 -**3. A9 00 00 00 00 07 D0**
937 937  
874 +1. A9 00 00 00 00 07 D0
875 +
938 938  DO1 pin & DO2 pin & DO3 pin will be set to high, last 2 seconds, then both change to low.
939 939  
940 -**4. A9 00 11 01 00 07 D0**
941 941  
879 +1. A9 00 11 01 00 07 D0
880 +
942 942  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
943 943  
944 944  
945 -=== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ===
946 946  
885 +
886 +==== Relay ~-~- Control Relay Output RO1/RO2 ====
887 +
947 947  * AT Command:
948 948  
949 949  There is no AT Command to control Relay Output
950 950  
892 +
951 951  * Downlink Payload (prefix 0x03):
952 952  
953 -(% class="box infomessage" %)
954 -(((
955 -**0x03 aa bb     ~/~/ Set RO1/RO2 output**
956 -)))
895 +0x03 aa bb     ~/~/ Set RO1/RO2 output
957 957  
958 -(((
959 959  If payload = 0x030100, it means set RO1 to close and RO2 to open.
960 -)))
961 961  
962 -(((
963 963  01: Close ,  00: Open , 11: No action
964 -)))
965 965  
966 -(((
967 -[[image:image-20220524093724-9.png]]
968 -)))
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
969 969  
970 970  Device will upload a packet if downlink code executes successfully.
971 971  
972 972  
973 -==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
915 +==== Relay ~-~- Control Relay Output RO1/RO2 with time control ====
974 974  
975 975  * AT Command:
976 976  
977 977  There is no AT Command to control Relay Output
978 978  
921 +
979 979  * Downlink Payload (prefix 0x05):
980 980  
981 -(% class="box infomessage" %)
982 -(((
983 -**0x05 aa bb cc dd     ~/~/ Set RO1/RO2 relay with time control:**
984 -)))
924 +0x05 aa bb cc dd     ~/~/ Set RO1/RO2 relay with time control:
985 985  
986 986  This is to control the relay output time of relay. Include four bytes:
987 987  
988 -(% style="color:#4f81bd" %)**First Byte **(%%)**:** Type code (0x05)
928 +**First Byte:** Type code (0x05)
989 989  
990 -(% style="color:#4f81bd" %)**Second Byte(aa)**(%%): Inverter Mode
930 +**Second Byte(aa)**: Inverter Mode
991 991  
992 992  01: Relays will change back to original state after timeout.
993 993  
994 994  00: Relays will change to an inverter state after timeout
995 995  
996 -(% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
997 997  
998 -[[image:image-20220524093831-10.png]]
937 +**Third Byte(bb)**: Control Method and Ports status:
999 999  
1000 -(% 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
1001 1001  
950 +**Fourth / Fifth Bytes (cc)**: Latching time. Unit: ms
951 +
1002 1002  Device will upload a packet if downlink code executes successfully.
1003 1003  
954 +
955 +
1004 1004  **Example payload:**
1005 1005  
1006 -**~1. 05 01 11 07 D0**
958 +1. 05 01 11 07 D0
1007 1007  
1008 1008  Relay1 and Relay 2 will be set to NO , last 2 seconds, then change back to original state.
1009 1009  
1010 -**2. 05 01 10 07 D0**
1011 1011  
963 +1. 05 01 10 07 D0
964 +
1012 1012  Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then both change back to original state.
1013 1013  
1014 -**3. 05 00 01 07 D0**
1015 1015  
968 +1. 05 00 01 07 D0
969 +
1016 1016  Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then relay change to NO, Relay2 change to NC.
1017 1017  
1018 -**4. 05 00 00 07 D0**
1019 1019  
973 +1. 05 00 00 07 D0
974 +
1020 1020  Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
1021 1021  
1022 1022  
1023 -==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1024 1024  
1025 -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]]
1026 1026  
980 +
981 +
982 +==== Counting ~-~- Voltage threshold counting ====
983 +
984 +When voltage exceed the threshold, count. Feature see [[MOD4>>path:#MOD4]]
985 +
1027 1027  * AT Command:
1028 1028  
1029 -(% class="box infomessage" %)
1030 -(((
1031 -**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]]**
1032 -)))
988 +AT+VOLMAX    ~/~/ See [[MOD4>>path:#MOD4]]
1033 1033  
990 +
1034 1034  * Downlink Payload (prefix 0xA5):
1035 1035  
1036 -(% class="box infomessage" %)
1037 -(((
1038 -**0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1039 -)))
993 +0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc
1040 1040  
1041 -==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1042 1042  
996 +==== Counting ~-~- Pre-configure the Count Number ====
997 +
1043 1043  * AT Command:
1044 1044  
1045 -(% class="box infomessage" %)
1046 -(((
1047 -**AT+SETCNT=aa,(bb cc dd ee) **
1048 -)))
1000 +AT+SETCNT=aa,(bb cc dd ee)
1049 1049  
1050 1050  aa: 1: Set count1,
1051 1051  
... ... @@ -1055,109 +1055,115 @@
1055 1055  
1056 1056  Bb cc dd ee: number to be set
1057 1057  
1010 +
1058 1058  * Downlink Payload (prefix 0xA8):
1059 1059  
1060 -(% class="box infomessage" %)
1061 -(((
1062 -**0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1063 -)))
1013 +0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)
1064 1064  
1065 -==== 3.4.2.18 Counting ~-~- Clear Counting ====
1066 1066  
1016 +
1017 +
1018 +
1019 +==== Counting ~-~- Clear Counting ====
1020 +
1067 1067  Clear counting for counting mode
1068 1068  
1069 1069  * AT Command:
1070 1070  
1071 -(% class="box infomessage" %)
1072 -(((
1073 -**AT+CLRCOUNT ~/~/ clear all counting**
1074 -)))
1025 +AT+CLRCOUNT ~/~/ clear all counting
1075 1075  
1027 +
1076 1076  * Downlink Payload (prefix 0xA6):
1077 1077  
1078 -(% class="box infomessage" %)
1079 -(((
1080 -**0x A6 01     ~/~/ clear all counting,**
1081 -)))
1030 +0x A6 01     ~/~/ clear all counting,
1082 1082  
1083 -==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1084 1084  
1033 +
1034 +
1035 +==== Counting ~-~- Change counting mode save time ====
1036 +
1085 1085  * AT Command:
1086 1086  
1087 -(% class="box infomessage" %)
1088 -(((
1089 -**AT+COUTIME=60  ~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)**
1090 -)))
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)
1091 1091  
1041 +
1092 1092  * Downlink Payload (prefix 0xA7):
1093 1093  
1094 -(% class="box infomessage" %)
1095 -(((
1096 -**0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,**
1097 -)))
1044 +0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,
1098 1098  
1099 1099  range: aa bb cc:0 to 16777215,  (unit:second)
1100 1100  
1101 -== 3.5 Integrate with Mydevice ==
1102 1102  
1049 +
1050 +
1051 +1.
1052 +11. Integrate with Mydevice
1053 +
1103 1103  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:
1104 1104  
1105 -**Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
1106 1106  
1107 -**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.
1108 1108  
1109 -[[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:
1110 1110  
1111 -[[image:image-20220524094641-11.png||height="390" width="723"]]
1112 1112  
1062 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
1113 1113  
1114 -[[image:image-20220524094641-12.png||height="402" width="718"]]
1115 1115  
1116 -**Step 3**: Create an account or log in Mydevices.
1065 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]]
1117 1117  
1118 -**Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1119 1119  
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 +
1120 1120  Search under The things network
1121 1121  
1122 -[[image:1653356838789-523.png||height="337" width="740"]]
1078 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
1123 1123  
1080 +
1124 1124  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1125 1125  
1126 -[[image:image-20220524094909-1.png||height="335" width="729"]]
1083 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
1127 1127  
1128 -[[image:image-20220524094909-2.png||height="337" width="729"]]
1129 1129  
1130 -[[image:image-20220524094909-3.png||height="338" width="727"]]
1086 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
1131 1131  
1132 -[[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
1133 1133  
1134 -[[image:image-20220524094909-5.png||height="341" width="734"]]
1089 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]
1135 1135  
1136 -== 3.6 Interface Detail ==
1137 1137  
1138 -=== 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1092 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
1139 1139  
1094 +
1095 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
1096 +
1097 +
1098 +1.
1099 +11. Interface Detail
1100 +111. Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active )
1101 +
1140 1140  Support NPN Type sensor
1141 1141  
1142 -[[image:1653356991268-289.png]]
1104 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
1143 1143  
1144 -=== 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1145 1145  
1146 -(((
1107 +
1108 +1.
1109 +11.
1110 +111. Digital Input Port: DI1/DI2 ( For LT-22222-L)
1111 +
1147 1147  The DI port of LT-22222-L can support NPN or PNP output sensor.
1148 -)))
1149 1149  
1150 -(((
1151 -(((
1152 1152  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
1153 -)))
1154 -)))
1155 1155  
1156 -[[image:1653357170703-587.png]]
1116 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
1157 1157  
1158 -(((
1159 1159  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1160 -)))
1161 1161  
1162 1162  
1163 1163  **Example1**: Connect to a Low active sensor.
... ... @@ -1167,11 +1167,11 @@
1167 1167  * Connect sensor’s output to DI1-
1168 1168  * Connect sensor’s VCC to DI1+.
1169 1169  
1170 -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:
1171 1171  
1172 - //IF// = DI1+ / 1K.
1130 + //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1173 1173  
1174 -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.
1175 1175  
1176 1176  
1177 1177  **Example2**: Connect to a High active sensor.
... ... @@ -1183,12 +1183,12 @@
1183 1183  
1184 1184  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1185 1185  
1186 -[[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.**
1144 + //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1187 1187  
1188 -If **DI1+ = 24v**, the [[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.
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.
1189 1189  
1190 1190  
1191 -**Example3**: Connect to a 220v high active sensor.
1149 +**Example3**: Connect to a 220v high active sensor.公司测试一下
1192 1192  
1193 1193  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1194 1194  
... ... @@ -1197,24 +1197,34 @@
1197 1197  
1198 1198  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1199 1199  
1200 - [[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.**
1158 + //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 51K.
1201 1201  
1202 -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.
1203 1203  
1204 -=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1205 1205  
1163 +1.
1164 +11.
1165 +111. Digital Output Port: DO1/DO2 /DO3
1166 +
1206 1206  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1207 1207  
1208 -[[image:1653357531600-905.png]]
1169 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1209 1209  
1210 -=== 3.6.4 Analog Input Interface ===
1211 1211  
1172 +
1173 +
1174 +1.
1175 +11.
1176 +111. Analog Input Interface
1177 +
1212 1212  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:
1213 1213  
1214 -**AC2 = (IN2 voltage )/12**
1180 +AC2 = (IN2 voltage )/12
1215 1215  
1216 -[[image:1653357592296-182.png]]
1182 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
1217 1217  
1184 +
1185 +
1218 1218  Example to connect a 4~~20mA sensor
1219 1219  
1220 1220  We take the wind speed sensor as an example for reference only.
... ... @@ -1230,579 +1230,423 @@
1230 1230  
1231 1231  Connection diagram:
1232 1232  
1233 -[[image:1653357640609-758.png]]
1201 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.jpg]]
1234 1234  
1235 -[[image:1653357648330-671.png||height="155" width="733"]]
1203 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
1236 1236  
1237 -=== 3.6.5 Relay Output ===
1238 1238  
1239 -(((
1206 +
1207 +1.
1208 +11.
1209 +111. Relay Output
1210 +
1240 1240  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:
1241 -)))
1242 1242  
1243 -[[image:image-20220524100215-9.png]]
1213 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1244 1244  
1245 -[[image:image-20220524100215-10.png||height="382" width="723"]]
1246 1246  
1247 -== 3.7 LEDs Indicators ==
1216 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1248 1248  
1249 -[[image:image-20220524100748-11.png]]
1250 1250  
1251 -= 4. Use AT Command =
1252 1252  
1253 -== 4.1 Access AT Command ==
1254 1254  
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 +
1255 1255  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.
1256 1256  
1257 -[[image:1653358238933-385.png]]
1264 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1258 1258  
1259 -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:
1260 1260  
1261 -[[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:
1262 1262  
1269 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1270 +
1271 +
1263 1263  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/]]
1264 1264  
1265 -(((
1266 1266  AT+<CMD>?        : Help on <CMD>
1267 -)))
1268 1268  
1269 -(((
1270 1270  AT+<CMD>         : Run <CMD>
1271 -)))
1272 1272  
1273 -(((
1274 1274  AT+<CMD>=<value> : Set the value
1275 -)))
1276 1276  
1277 -(((
1278 1278  AT+<CMD>=?       : Get the value
1279 -)))
1280 1280  
1281 -(((
1282 1282  ATZ: Trig a reset of the MCU
1283 -)))
1284 1284  
1285 -(((
1286 1286  AT+FDR: Reset Parameters to Factory Default, Keys Reserve 
1287 -)))
1288 1288  
1289 -(((
1290 1290  AT+DEUI: Get or Set the Device EUI
1291 -)))
1292 1292  
1293 -(((
1294 1294  AT+DADDR: Get or Set the Device Address
1295 -)))
1296 1296  
1297 -(((
1298 1298  AT+APPKEY: Get or Set the Application Key
1299 -)))
1300 1300  
1301 -(((
1302 1302  AT+NWKSKEY: Get or Set the Network Session Key
1303 -)))
1304 1304  
1305 -(((
1306 1306  AT+APPSKEY: Get or Set the Application Session Key
1307 -)))
1308 1308  
1309 -(((
1310 1310  AT+APPEUI: Get or Set the Application EUI
1311 -)))
1312 1312  
1313 -(((
1314 1314  AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1315 -)))
1316 1316  
1317 -(((
1318 1318  AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1319 -)))
1320 1320  
1321 -(((
1322 1322  AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1323 -)))
1324 1324  
1325 -(((
1326 1326  AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1327 -)))
1328 1328  
1329 -(((
1330 1330  AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1331 -)))
1332 1332  
1333 -(((
1334 1334  AT+RX2FQ: Get or Set the Rx2 window frequency
1335 -)))
1336 1336  
1337 -(((
1338 1338  AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1339 -)))
1340 1340  
1341 -(((
1342 1342  AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1343 -)))
1344 1344  
1345 -(((
1346 1346  AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1347 -)))
1348 1348  
1349 -(((
1350 1350  AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1351 -)))
1352 1352  
1353 -(((
1354 1354  AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1355 -)))
1356 1356  
1357 -(((
1358 1358  AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1359 -)))
1360 1360  
1361 -(((
1362 1362  AT+NWKID: Get or Set the Network ID
1363 -)))
1364 1364  
1365 -(((
1366 1366  AT+FCU: Get or Set the Frame Counter Uplink
1367 -)))
1368 1368  
1369 -(((
1370 1370  AT+FCD: Get or Set the Frame Counter Downlink
1371 -)))
1372 1372  
1373 -(((
1374 1374  AT+CLASS: Get or Set the Device Class
1375 -)))
1376 1376  
1377 -(((
1378 1378  AT+JOIN: Join network
1379 -)))
1380 1380  
1381 -(((
1382 1382  AT+NJS: Get OTAA Join Status
1383 -)))
1384 1384  
1385 -(((
1386 1386  AT+SENDB: Send hexadecimal data along with the application port
1387 -)))
1388 1388  
1389 -(((
1390 1390  AT+SEND: Send text data along with the application port
1391 -)))
1392 1392  
1393 -(((
1394 1394  AT+RECVB: Print last received data in binary format (with hexadecimal values)
1395 -)))
1396 1396  
1397 -(((
1398 1398  AT+RECV: Print last received data in raw format
1399 -)))
1400 1400  
1401 -(((
1402 1402  AT+VER: Get current image version and Frequency Band
1403 -)))
1404 1404  
1405 -(((
1406 1406  AT+CFM: Get or Set the confirmation mode (0-1)
1407 -)))
1408 1408  
1409 -(((
1410 1410  AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1411 -)))
1412 1412  
1413 -(((
1414 1414  AT+SNR: Get the SNR of the last received packet
1415 -)))
1416 1416  
1417 -(((
1418 1418  AT+RSSI: Get the RSSI of the last received packet
1419 -)))
1420 1420  
1421 -(((
1422 1422  AT+TDC: Get or set the application data transmission interval in ms
1423 -)))
1424 1424  
1425 -(((
1426 1426  AT+PORT: Get or set the application port
1427 -)))
1428 1428  
1429 -(((
1430 1430  AT+DISAT: Disable AT commands
1431 -)))
1432 1432  
1433 -(((
1434 1434  AT+PWORD: Set password, max 9 digits
1435 -)))
1436 1436  
1437 -(((
1438 1438  AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1439 -)))
1440 1440  
1441 -(((
1442 1442  AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470
1443 -)))
1444 1444  
1445 -(((
1446 1446  AT+CFG: Print all settings
1447 -)))
1448 1448  
1449 -== 4.2 Common AT Command Sequence ==
1450 1450  
1451 -=== 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1452 1452  
1453 -(((
1368 +1.
1369 +11. Common AT Command Sequence
1370 +111. Multi-channel ABP mode (Use with SX1301/LG308)
1371 +
1454 1454  If device has not joined network yet:
1455 -)))
1456 1456  
1457 -(((
1458 -(% style="background-color:#dcdcdc" %)123456
1459 -)))
1374 +123456
1460 1460  
1461 -(((
1462 -(% style="background-color:#dcdcdc" %)AT+FDR
1463 -)))
1376 +AT+FDR
1464 1464  
1465 -(((
1466 -(% style="background-color:#dcdcdc" %)123456
1467 -)))
1378 +123456
1468 1468  
1469 -(((
1470 -(% style="background-color:#dcdcdc" %)AT+NJM=0
1471 -)))
1380 +AT+NJM=0
1472 1472  
1473 -(((
1474 -(% style="background-color:#dcdcdc" %)ATZ
1475 -)))
1382 +ATZ
1476 1476  
1477 1477  
1478 -(((
1479 1479  If device already joined network:
1480 -)))
1481 1481  
1482 -(((
1483 -(% style="background-color:#dcdcdc" %)AT+NJM=0
1484 -)))
1387 +AT+NJM=0
1485 1485  
1486 -(((
1487 -(% style="background-color:#dcdcdc" %)ATZ
1488 -)))
1389 +ATZ
1489 1489  
1490 -=== 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
1391 +1.
1392 +11.
1393 +111. Single-channel ABP mode (Use with LG01/LG02)
1491 1491  
1492 -(((
1493 -(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1494 -)))
1395 +123456   Enter Password to have AT access.
1495 1495  
1496 -(((
1497 -(% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
1498 -)))
1397 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1499 1499  
1500 -(((
1501 -(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1502 -)))
1399 +123456   Enter Password to have AT access.
1503 1503  
1504 -(((
1505 -(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
1506 -)))
1401 +AT+CLASS=C Set to work in CLASS C
1507 1507  
1508 -(((
1509 -(% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode
1510 -)))
1403 +AT+NJM=0 Set to ABP mode
1511 1511  
1512 -(((
1513 -(% style="background-color:#dcdcdc" %) AT+ADR=0(%%) Set the Adaptive Data Rate Off
1514 -)))
1405 +AT+ADR=0 Set the Adaptive Data Rate Off
1515 1515  
1516 -(((
1517 -(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1518 -)))
1407 +AT+DR=5  Set Data Rate
1519 1519  
1520 -(((
1521 -(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1522 -)))
1409 +AT+TDC=60000  Set transmit interval to 60 seconds
1523 1523  
1524 -(((
1525 -(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz
1526 -)))
1411 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1527 1527  
1528 -(((
1529 -(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1530 -)))
1413 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1531 1531  
1532 -(((
1533 -(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1534 -)))
1415 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1535 1535  
1536 -(((
1537 -(% style="background-color:#dcdcdc" %) AT+DADDR=26 01 1A F1 (%%)Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1538 -)))
1417 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1539 1539  
1540 -(((
1541 -(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1542 -)))
1419 +ATZ          Reset MCU
1543 1543  
1544 -(((
1545 -(% style="color:red" %)**Note:**
1546 -)))
1421 +**Note:**
1547 1547  
1548 -(((
1549 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1550 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1551 -3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1552 -4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1553 -)))
1423 +1. Make sure the device is set to ABP mode in the IoT Server.
1424 +1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1425 +1. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1426 +1. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1554 1554  
1555 -(((
1556 -[[image:1653359097980-169.png||height="188" width="729"]]
1557 -)))
1428 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]
1558 1558  
1559 -(((
1560 -
1561 -)))
1562 1562  
1563 -=== 4.2.3 Change to Class A ===
1431 +1.
1432 +11.
1433 +111. Change to Class A
1564 1564  
1565 1565  If sensor JOINED
1566 -(% style="background-color:#dcdcdc" %)AT+CLASS=A
1436 +
1437 +AT+CLASS=A
1438 +
1567 1567  ATZ
1568 1568  
1569 -= 5. FAQ =
1570 1570  
1571 -== 5.1 How to upgrade the image? ==
1572 1572  
1443 +
1444 +
1445 +1. FAQ
1446 +
1447 +1.
1448 +11. How to upgrade the image?
1449 +
1573 1573  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1574 1574  
1575 1575  * Support new features
1576 1576  * For bug fix
1577 1577  * Change LoRaWAN bands.
1455 +
1578 1578  Below shows the hardware connection for how to upload an image to the LT:
1579 -* [[image:1653359603330-121.png]]
1580 1580  
1458 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1459 +
1460 +
1581 1581  **Step1:** Download [[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]].
1462 +
1582 1582  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1464 +
1583 1583  **Step3: **Open flashloader; choose the correct COM port to update.
1584 -**For LT-22222-L**:
1585 -Hold down the PRO button and then momentarily press the RST reset button and the **DO1 led** will change from OFF to ON. When **DO1 LED** is on, it means the device is in download mode.
1586 1586  
1587 - [[image:image-20220524103407-12.png]]
1467 +**For LT-33222-L**:
1588 1588  
1589 -[[image:image-20220524103429-13.png]]
1469 +Hold down the PRO button and then momentarily press the RST reset button and the **DO2 led** will change from OFF to ON. When **DO2 LED** is on, it means the device is in download mode.
1590 1590  
1591 -[[image:image-20220524104033-15.png]]
1471 +**For LT-22222-L**:
1592 1592  
1593 -(% 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:
1473 +Hold down the PRO button and then momentarily press the RST reset button and the **DO1 led** will change from OFF to ON. When **DO1 LED** is on, it means the device is in download mode.
1594 1594  
1595 -[[image:1653360054704-518.png||height="186" width="745"]]
1596 1596  
1597 -(((
1598 -(((
1599 -== 5.2 How to change the LoRa Frequency Bands/Region? ==
1600 -)))
1601 -)))
1602 1602  
1603 -(((
1604 -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.
1477 +|(((
1478 +Board detected
1605 1605  )))
1606 1606  
1607 -(((
1608 -== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1481 +|(((
1482 +
1609 1609  )))
1610 1610  
1611 -(((
1612 -(((
1485 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]]
1486 +
1487 +
1488 +
1489 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]]
1490 +
1491 +
1492 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image037.png]]
1493 +
1494 +
1495 +**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1496 +
1497 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.png]]
1498 +
1499 +
1500 +1.
1501 +11. How to change the LoRa Frequency Bands/Region?
1502 +
1503 +User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1504 +
1505 +
1506 +1.
1507 +11. How to set up LT to work with Single Channel Gateway such as LG01/LG02?
1508 +
1613 1613  In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
1614 -)))
1615 -)))
1616 1616  
1617 -(((
1618 -(((
1619 1619  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1620 -)))
1621 -)))
1622 1622  
1623 -(((
1624 -(% 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.
1625 -)))
1626 1626  
1627 -(((
1628 -[[image:1653360231087-571.png||height="401" width="727"]]
1629 -)))
1514 +**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.
1630 1630  
1631 -(% 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.
1516 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image039.png]]
1632 1632  
1633 -(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1518 +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.
1634 1634  
1635 -(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1636 -(% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1637 -(% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
1638 -(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
1639 -(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
1640 -(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1641 -(% style="background-color:#dcdcdc" %)AT+TDC=60000  (%%)Set transmit interval to 60 seconds
1642 -(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1643 -(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1644 -(% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
1645 1645  
1521 +**Step2: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1522 +
1523 +123456   Enter Password to have AT access.
1524 +
1525 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1526 +
1527 +123456   Enter Password to have AT access.
1528 +
1529 +AT+NJM=0 Set to ABP mode
1530 +
1531 +AT+ADR=0 Set the Adaptive Data Rate Off
1532 +
1533 +AT+DR=5  Set Data Rate (Set AT+DR=3 for 915 band)
1534 +
1535 +AT+TDC=60000  Set transmit interval to 60 seconds
1536 +
1537 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1538 +
1539 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1
1540 +
1541 +ATZ                Reset MCU
1542 +
1646 1646  As shown in below:
1647 1647  
1648 -[[image:1653360498588-932.png||height="485" width="726"]]
1545 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.png]]
1649 1649  
1650 -== 5.4 Can I see counting event in Serial? ==
1651 1651  
1652 -(((
1548 +
1549 +1.
1550 +11. Can I see counting event in Serial?
1551 +
1653 1653  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.
1654 -)))
1655 1655  
1656 -(((
1657 -= 6. Trouble Shooting =
1658 -)))
1659 1659  
1660 -(((
1661 -(((
1662 -== 6.1 Downlink doesn’t work, how to solve it? ==
1663 -)))
1664 -)))
1665 1665  
1666 -(((
1667 -Please see this link for how to debug:
1668 1668  
1669 -[[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/]]
1670 -)))
1557 +1. Trouble Shooting     
1558 +11. Downlink doesn’t work, how to solve it?
1671 1671  
1672 -(((
1560 +Please see this link for how to debug:
1561 +
1673 1673  [[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work]]
1674 -)))
1675 1675  
1676 -(((
1677 -== 6.2 Have trouble to upload image. ==
1678 -)))
1679 1679  
1680 -(((
1565 +1.
1566 +11. Have trouble to upload image.
1567 +
1681 1681  See this link for trouble shooting:
1682 -)))
1683 1683  
1684 -(((
1685 1685  [[http:~~/~~/wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting>>url:http://wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting]]
1686 -)))
1687 1687  
1688 -(((
1689 -== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1690 -)))
1691 1691  
1692 -(((
1573 +1.
1574 +11. Why I can’t join TTN in US915 /AU915 bands?
1575 +
1693 1693  It might be about the channels mapping. Please see this link for detail:
1694 -)))
1695 1695  
1696 -(((
1697 1697  [[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band]]
1698 -)))
1699 1699  
1700 -(((
1701 -= 7. Order Info =
1702 -)))
1703 1703  
1704 -(((
1705 -(((
1706 -(% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1707 -)))
1708 -)))
1709 1709  
1710 -(((
1711 -(((
1712 -(% style="color:#4f81bd" %)**XXX:**
1713 -)))
1714 -)))
1715 1715  
1716 -* (((
1717 -(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1718 -)))
1719 -* (((
1720 -(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1721 -)))
1722 -* (((
1723 -(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1724 -)))
1725 -* (((
1726 -(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1727 -)))
1728 -* (((
1729 -(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1730 -)))
1731 -* (((
1732 -(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1733 -)))
1734 -* (((
1735 -(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1736 -)))
1737 -* (((
1738 -(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1739 -)))
1583 +1. Order Info
1740 1740  
1741 -(((
1742 -* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1585 +**For LT-33222-L-XXX or LT-22222-L-XXX:**
1743 1743  
1744 -= 8. Packing Info =
1745 -)))
1587 +**XXX:**
1746 1746  
1747 -(((
1748 -(((
1589 +* **EU433**: LT with frequency bands EU433
1590 +* **EU868**: LT with frequency bands EU868
1591 +* **KR920**: LT with frequency bands KR920
1592 +* **CN470**: LT with frequency bands CN470
1593 +* **AS923**: LT with frequency bands AS923
1594 +* **AU915**: LT with frequency bands AU915
1595 +* **US915**: LT with frequency bands US915
1596 +* **IN865**: LT with frequency bands IN865
1597 +* **CN779**: LT with frequency bands CN779
1598 +
1599 +1. Packing Info
1600 +
1749 1749  **Package Includes**:
1750 -)))
1751 -)))
1752 1752  
1753 -(((
1754 -(((
1755 -* LT-22222-L I/O Controller x 1
1603 +* LT I/O Controller x 1
1756 1756  * Stick Antenna for LoRa RF part x 1
1757 1757  * Bracket for controller x1
1758 1758  * Program cable x 1
1759 -)))
1760 -)))
1761 1761  
1762 -(((
1763 -(((
1764 1764  **Dimension and weight**:
1765 -)))
1766 -)))
1767 1767  
1768 -(((
1769 -(((
1770 1770  * Device Size: 13.5 x 7 x 3 cm
1771 1771  * Device Weight: 105g
1772 1772  * Package Size / pcs : 14.5 x 8 x 5 cm
1773 1773  * Weight / pcs : 170g
1774 -)))
1775 -)))
1776 1776  
1777 -(((
1778 -= 9. Support =
1779 -)))
1615 +1. Support
1780 1780  
1781 -* (((
1782 -(((
1783 -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.
1784 -)))
1785 -)))
1786 -* (((
1787 -(((
1788 -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
1789 -)))
1790 -)))
1617 +* 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.
1618 +* 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
1791 1791  
1792 -(((
1793 -(((
1794 - [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1795 -)))
1796 -
1797 -(((
1798 -= 10. Reference​​​​​ =
1799 -
1800 -* Product Page:
1801 -
1802 -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]]
1803 -
1804 -* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1805 -* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1806 -* [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
1807 -)))
1808 -)))
1620 +[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
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