Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 110.1 >
edited by Bei Jinggeng
on 2022/12/22 09:19
To version < 118.1 >
edited by Ellie Zhang
on 2023/05/09 09:04
>
Change comment: There is no comment for this version

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Author
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1 -XWiki.Bei
1 +XWiki.Ellie
Content
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15 15  
16 16  = 1.Introduction =
17 17  
18 -
19 19  == 1.1 What is LT Series I/O Controller ==
20 20  
21 21  (((
... ... @@ -27,7 +27,7 @@
27 27  )))
28 28  
29 29  (((
30 -The LT I/O Controllers allows the user to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
29 +The LT I/O Controllers allows the user to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
31 31  )))
32 32  
33 33  (((
... ... @@ -54,7 +54,6 @@
54 54  
55 55  )))
56 56  
57 -
58 58  == 1.2  Specifications ==
59 59  
60 60  (((
... ... @@ -171,7 +171,6 @@
171 171  Packet engine up to 256 bytes with CRC.
172 172  
173 173  
174 -
175 175  
176 176  )))
177 177  
... ... @@ -179,11 +179,17 @@
179 179  
180 180  
181 181  * LoRaWAN Class A & Class C protocol
179 +
182 182  * Optional Customized LoRa Protocol
181 +
183 183  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
183 +
184 184  * AT Commands to change parameters
185 +
185 185  * Remote configure parameters via LoRa Downlink
187 +
186 186  * Firmware upgradable via program port
189 +
187 187  * Counting
188 188  
189 189  
... ... @@ -191,10 +191,15 @@
191 191  
192 192  
193 193  * Smart Buildings & Home Automation
197 +
194 194  * Logistics and Supply Chain Management
199 +
195 195  * Smart Metering
201 +
196 196  * Smart Agriculture
203 +
197 197  * Smart Cities
205 +
198 198  * Smart Factory
199 199  
200 200  
... ... @@ -201,9 +201,12 @@
201 201  == 1.5 Hardware Variants ==
202 202  
203 203  
204 -(% border="1" style="background-color:#f7faff; width:500px" %)
205 -|(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
206 -|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
212 +(% border="1" style="background-color:#f2f2f2; width:500px" %)
213 +|(% style="background-color:#d9e2f3; color:#0070c0; width:103px" %)**Model**|(% style="background-color:#d9e2f3; color:#0070c0; width:131px" %)**Photo**|(% style="background-color:#d9e2f3; color:#0070c0; width:334px" %)**Description**
214 +|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
215 +(% style="text-align:center" %)
216 +[[image:image-20230424115112-1.png||height="106" width="58"]]
217 +)))|(% style="width:334px" %)(((
207 207  * 2 x Digital Input (Bi-direction)
208 208  * 2 x Digital Output
209 209  * 2 x Relay Output (5A@250VAC / 30VDC)
... ... @@ -269,7 +269,7 @@
269 269  Each LT is shipped with a sticker with the default device EUI as below:
270 270  )))
271 271  
272 -[[image:1653297924498-393.png]]
283 +[[image:image-20230425173427-2.png]]
273 273  
274 274  
275 275  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
... ... @@ -294,7 +294,6 @@
294 294  [[image:1653298044601-602.png||height="405" width="709"]]
295 295  
296 296  
297 -
298 298  == 3.3 Uplink Payload ==
299 299  
300 300  
... ... @@ -653,7 +653,6 @@
653 653  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
654 654  
655 655  
656 -
657 657  (% style="color:#037691" %)**Downlink Command to set Trigger Condition:**
658 658  
659 659  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
... ... @@ -714,7 +714,6 @@
714 714  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
715 715  
716 716  
717 -
718 718  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
719 719  
720 720  [[image:image-20220524090456-4.png]]
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728 728  00000101: Means both DI1 and DI2 trigger are enabled.
729 729  
730 730  
731 -
732 732  (% style="color:#4f81bd" %)**Enable/Disable MOD6 **(%%): 0x01: MOD6 is enable. 0x00: MOD6 is disable.
733 733  
734 734  Downlink command to poll MOD6 status:
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850 850  
851 851  
852 852  
853 -
854 854  ==== 3.4.2.5 Poll trigger settings ====
855 855  
856 856  
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1065 1065  
1066 1066   Latching time. Unit: ms
1067 1067  
1068 -Note:
1069 1069  
1075 +(% style="color:red" %)**Note: **
1076 +
1070 1070   Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
1071 1071  
1072 1072   Before Firmwre v1.6.0 the latch time only suport 2 bytes.
... ... @@ -1095,7 +1095,7 @@
1095 1095  
1096 1096  
1097 1097  
1098 -==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1105 +==== 3.4.2. 14 Relay ~-~- Control Relay Output RO1/RO2 ====
1099 1099  
1100 1100  
1101 1101  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1117,7 +1117,7 @@
1117 1117  )))
1118 1118  
1119 1119  (((
1120 -[[image:image-20220524093724-9.png]]
1127 +[[image:image-20230426161322-1.png]]
1121 1121  )))
1122 1122  
1123 1123  (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
... ... @@ -1124,7 +1124,6 @@
1124 1124  
1125 1125  
1126 1126  
1127 -
1128 1128  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1129 1129  
1130 1130  
... ... @@ -1156,8 +1156,9 @@
1156 1156  
1157 1157  (% style="color:#4f81bd" %)**Fourth/Fifth/Sixth/Seventh Bytes(cc)**(%%): Latching time. Unit: ms
1158 1158  
1159 -Note:
1160 1160  
1166 +(% style="color:red" %)**Note:**
1167 +
1161 1161   Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
1162 1162  
1163 1163   Before Firmwre v1.6.0 the latch time only suport 2 bytes.
... ... @@ -1168,7 +1168,7 @@
1168 1168  
1169 1169  **Example payload:**
1170 1170  
1171 -**~1. 05 01 11 07 D**
1178 +**~1. 05 01 11 07 D0**
1172 1172  
1173 1173  Relay1 and Relay 2 will be set to NC , last 2 seconds, then change back to original state.
1174 1174  
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1303 1303  
1304 1304  
1305 1305  
1306 -
1307 1307  ==== 3.4.2.24 When the limit bytes are exceeded, upload in batches ====
1308 1308  
1309 1309  
... ... @@ -1320,7 +1320,6 @@
1320 1320  
1321 1321  
1322 1322  
1323 -
1324 1324  ==== 3.4.2.25 Copy downlink to uplink ====
1325 1325  
1326 1326  
... ... @@ -1474,8 +1474,6 @@
1474 1474  
1475 1475  (((
1476 1476  
1477 -
1478 -
1479 1479  )))
1480 1480  
1481 1481  (((
... ... @@ -1507,8 +1507,6 @@
1507 1507  
1508 1508  (((
1509 1509  
1510 -
1511 -
1512 1512  )))
1513 1513  
1514 1514  (((
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1542 1542  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1543 1543  
1544 1544  
1545 -**NPN output**: GND or Float. Max voltage can apply to output pin is 36v.
1546 +(% style="color:blue" %)**NPN output**(%%): GND or Float. Max voltage can apply to output pin is 36v.
1546 1546  
1547 -Note: DO pins go to float when device is power off.
1548 +(% style="color:red" %)**Note: DO pins go to float when device is power off.**
1548 1548  
1549 1549  [[image:1653357531600-905.png]]
1550 1550  
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1566 1566  
1567 1567  (% style="color:blue" %)**Specifications of the wind speed sensor:**
1568 1568  
1569 -**Red:  12~~24v**
1570 +(% style="color:red" %)**Red:  12~~24v**
1570 1570  
1571 -**Yellow:  4~~20mA**
1572 +(% style="color:#ffc000" %)**Yellow:  4~~20mA**
1572 1572  
1573 1573  **Black:  GND**
1574 1574  
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1601 1601  [[image:image-20220524100748-11.png]]
1602 1602  
1603 1603  
1604 -
1605 1605  = 4. Use AT Command =
1606 1606  
1607 1607  == 4.1 Access AT Command ==
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1932 1932  **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?
1933 1933  dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
1934 1934  
1935 -**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**
1935 +**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.**
1936 1936  
1937 1937  
1938 1938  )))
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1945 1945  
1946 1946  )))
1947 1947  
1948 -
1949 1949  === 4.2.3 Change to Class A ===
1950 1950  
1951 1951  
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1957 1957  )))
1958 1958  
1959 1959  
1960 -= 5. FAQ =
1959 += 5. Case Study =
1961 1961  
1962 -== 5.1 How to upgrade the image? ==
1961 +== 5.1 Counting how many objects pass in Flow Line ==
1963 1963  
1964 1964  
1964 +Reference Link: [[How to set up to count objects pass in flow line>>How to set up to count objects pass in flow line]]?
1965 +
1966 +
1967 += 6. FAQ =
1968 +
1969 +== 6.1 How to upgrade the image? ==
1970 +
1971 +
1965 1965  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1966 1966  
1967 1967  * Support new features
... ... @@ -1989,8 +1989,10 @@
1989 1989  
1990 1990   [[image:image-20220524103407-12.png]]
1991 1991  
1999 +
1992 1992  [[image:image-20220524103429-13.png]]
1993 1993  
2002 +
1994 1994  [[image:image-20220524104033-15.png]]
1995 1995  
1996 1996  
... ... @@ -2002,7 +2002,7 @@
2002 2002  
2003 2003  (((
2004 2004  (((
2005 -== 5.2 How to change the LoRa Frequency Bands/Region? ==
2014 +== 6.2 How to change the LoRa Frequency Bands/Region? ==
2006 2006  
2007 2007  
2008 2008  )))
... ... @@ -2015,7 +2015,7 @@
2015 2015  (((
2016 2016  
2017 2017  
2018 -== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
2027 +== 6.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
2019 2019  
2020 2020  
2021 2021  )))
... ... @@ -2078,14 +2078,20 @@
2078 2078  [[image:1653360498588-932.png||height="485" width="726"]]
2079 2079  
2080 2080  
2081 -== 5.4 Can I see counting event in Serial? ==
2090 +== 6.4 How to change the uplink interval？ ==
2082 2082  
2083 2083  
2093 +Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/]]
2094 +
2095 +
2096 +== 6.5 Can I see counting event in Serial? ==
2097 +
2098 +
2084 2084  (((
2085 2085  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.
2086 2086  
2087 2087  
2088 -== 5.5 Can i use point to point communication for LT-22222-L? ==
2103 +== 6.6 Can i use point to point communication for LT-22222-L? ==
2089 2089  
2090 2090  
2091 2091  Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]  ，this is [[firmware>>https://github.com/dragino/LT-22222-L/releases]].
... ... @@ -2094,7 +2094,7 @@
2094 2094  )))
2095 2095  
2096 2096  (((
2097 -== 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2112 +== 6.7 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2098 2098  
2099 2099  
2100 2100  If the device is not shut down, but directly powered off.
... ... @@ -2106,7 +2106,7 @@
2106 2106  After restart, the status before power failure will be read from flash.
2107 2107  
2108 2108  
2109 -== 5.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2124 +== 6.8 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2110 2110  
2111 2111  
2112 2112  LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
... ... @@ -2115,18 +2115,18 @@
2115 2115  [[image:image-20221006170630-1.png||height="610" width="945"]]
2116 2116  
2117 2117  
2118 -== 5.8 Can LT22222-L save RO state? ==
2133 +== 6.9 Can LT22222-L save RO state? ==
2119 2119  
2120 2120  
2121 2121  Firmware version needs to be no less than 1.6.0.
2122 2122  
2123 2123  
2124 -= 6. Trouble Shooting =
2139 += 7. Trouble Shooting =
2125 2125  )))
2126 2126  
2127 2127  (((
2128 2128  (((
2129 -== 6.1 Downlink doesn't work, how to solve it? ==
2144 +== 7.1 Downlink doesn't work, how to solve it? ==
2130 2130  
2131 2131  
2132 2132  )))
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2139 2139  (((
2140 2140  
2141 2141  
2142 -== 6.2 Have trouble to upload image. ==
2157 +== 7.2 Have trouble to upload image. ==
2143 2143  
2144 2144  
2145 2145  )))
... ... @@ -2151,7 +2151,7 @@
2151 2151  (((
2152 2152  
2153 2153  
2154 -== 6.3 Why I can't join TTN in US915 /AU915 bands? ==
2169 +== 7.3 Why I can't join TTN in US915 /AU915 bands? ==
2155 2155  
2156 2156  
2157 2157  )))
... ... @@ -2161,7 +2161,7 @@
2161 2161  )))
2162 2162  
2163 2163  
2164 -= 7. Order Info =
2179 += 8. Order Info =
2165 2165  
2166 2166  
2167 2167  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
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2179 2179  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2180 2180  
2181 2181  
2182 -= 8. Packing Info =
2197 += 9. Packing Info =
2183 2183  
2184 2184  
2185 2185  **Package Includes**:
... ... @@ -2197,7 +2197,7 @@
2197 2197  * Weight / pcs : 170g
2198 2198  
2199 2199  
2200 -= 9. Support =
2215 += 10. Support =
2201 2201  
2202 2202  
2203 2203  * (((
... ... @@ -2210,7 +2210,7 @@
2210 2210  
2211 2211  )))
2212 2212  
2213 -= 10. Reference​​​​​ =
2228 += 11. Reference​​​​​ =
2214 2214  
2215 2215  
2216 2216  * 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]]
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