Last modified by Saxer Lin on 2025/04/15 17:24
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From version < 109.2 >
edited by Xiaoling
on 2022/11/21 11:37
To version < 115.2 >
edited by Xiaoling
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... ... @@ -15,7 +15,6 @@
15 15  
16 16  = 1.Introduction =
17 17  
18 -
19 19  == 1.1 What is LT Series I/O Controller ==
20 20  
21 21  (((
... ... @@ -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  
... ... @@ -192,10 +192,15 @@
192 192  
193 193  
194 194  * Smart Buildings & Home Automation
198 +
195 195  * Logistics and Supply Chain Management
200 +
196 196  * Smart Metering
202 +
197 197  * Smart Agriculture
204 +
198 198  * Smart Cities
206 +
199 199  * Smart Factory
200 200  
201 201  
... ... @@ -203,9 +203,12 @@
203 203  == 1.5 Hardware Variants ==
204 204  
205 205  
206 -(% border="1" style="background-color:#f7faff; width:500px" %)
207 -|(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
208 -|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
214 +(% border="1" style="background-color:#f2f2f2; width:500px" %)
215 +|(% 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**
216 +|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
217 +(% style="text-align:center" %)
218 +[[image:image-20230424115112-1.png||height="106" width="58"]]
219 +)))|(% style="width:334px" %)(((
209 209  * 2 x Digital Input (Bi-direction)
210 210  * 2 x Digital Output
211 211  * 2 x Relay Output (5A@250VAC / 30VDC)
... ... @@ -272,7 +272,7 @@
272 272  Each LT is shipped with a sticker with the default device EUI as below:
273 273  )))
274 274  
275 -[[image:1653297924498-393.png]]
286 +[[image:image-20230425173427-2.png]]
276 276  
277 277  
278 278  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
... ... @@ -297,7 +297,6 @@
297 297  [[image:1653298044601-602.png||height="405" width="709"]]
298 298  
299 299  
300 -
301 301  == 3.3 Uplink Payload ==
302 302  
303 303  
... ... @@ -311,7 +311,6 @@
311 311  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
312 312  
313 313  
314 -
315 315  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
316 316  
317 317  
... ... @@ -369,7 +369,6 @@
369 369  ** DO1 LED is off in both case
370 370  
371 371  
372 -
373 373  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
374 374  
375 375  
... ... @@ -658,7 +658,6 @@
658 658  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
659 659  
660 660  
661 -
662 662  (% style="color:#037691" %)**Downlink Command to set Trigger Condition:**
663 663  
664 664  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
... ... @@ -719,7 +719,6 @@
719 719  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
720 720  
721 721  
722 -
723 723  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
724 724  
725 725  [[image:image-20220524090456-4.png]]
... ... @@ -733,7 +733,6 @@
733 733  00000101: Means both DI1 and DI2 trigger are enabled.
734 734  
735 735  
736 -
737 737  (% style="color:#4f81bd" %)**Enable/Disable MOD6 **(%%): 0x01: MOD6 is enable. 0x00: MOD6 is disable.
738 738  
739 739  Downlink command to poll MOD6 status:
... ... @@ -770,7 +770,6 @@
770 770  * (% style="color:blue" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
771 771  
772 772  
773 -
774 774  === 3.4.1 Common Commands ===
775 775  
776 776  
... ... @@ -856,7 +856,6 @@
856 856  
857 857  
858 858  
859 -
860 860  ==== 3.4.2.5 Poll trigger settings ====
861 861  
862 862  
... ... @@ -939,7 +939,7 @@
939 939  
940 940  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 02 ):**
941 941  
942 -(% style="color:blue" %)**0x09 02 aa bb cc   ** (%%)~/~/ same as AT+TRIG1=aa,0x(bb cc)
945 +(% style="color:blue" %)**0x09 02 aa bb cc   ** (%%)~/~/ same as AT+TRIG2=aa,0x(bb cc)
943 943  
944 944  
945 945  
... ... @@ -1071,8 +1071,9 @@
1071 1071  
1072 1072   Latching time. Unit: ms
1073 1073  
1074 -Note:
1075 1075  
1078 +(% style="color:red" %)**Note: **
1079 +
1076 1076   Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
1077 1077  
1078 1078   Before Firmwre v1.6.0 the latch time only suport 2 bytes.
... ... @@ -1101,7 +1101,7 @@
1101 1101  
1102 1102  
1103 1103  
1104 -==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1108 +==== 3.4.2. 14 Relay ~-~- Control Relay Output RO1/RO2 ====
1105 1105  
1106 1106  
1107 1107  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1130,7 +1130,6 @@
1130 1130  
1131 1131  
1132 1132  
1133 -
1134 1134  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1135 1135  
1136 1136  
... ... @@ -1162,8 +1162,9 @@
1162 1162  
1163 1163  (% style="color:#4f81bd" %)**Fourth/Fifth/Sixth/Seventh Bytes(cc)**(%%): Latching time. Unit: ms
1164 1164  
1165 -Note:
1166 1166  
1169 +(% style="color:red" %)**Note:**
1170 +
1167 1167   Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
1168 1168  
1169 1169   Before Firmwre v1.6.0 the latch time only suport 2 bytes.
... ... @@ -1174,7 +1174,7 @@
1174 1174  
1175 1175  **Example payload:**
1176 1176  
1177 -**~1. 05 01 11 07 D**
1181 +**~1. 05 01 11 07 D0**
1178 1178  
1179 1179  Relay1 and Relay 2 will be set to NC , last 2 seconds, then change back to original state.
1180 1180  
... ... @@ -1309,7 +1309,6 @@
1309 1309  
1310 1310  
1311 1311  
1312 -
1313 1313  ==== 3.4.2.24 When the limit bytes are exceeded, upload in batches ====
1314 1314  
1315 1315  
... ... @@ -1326,7 +1326,6 @@
1326 1326  
1327 1327  
1328 1328  
1329 -
1330 1330  ==== 3.4.2.25 Copy downlink to uplink ====
1331 1331  
1332 1332  
... ... @@ -1480,8 +1480,6 @@
1480 1480  
1481 1481  (((
1482 1482  
1483 -
1484 -
1485 1485  )))
1486 1486  
1487 1487  (((
... ... @@ -1513,8 +1513,6 @@
1513 1513  
1514 1514  (((
1515 1515  
1516 -
1517 -
1518 1518  )))
1519 1519  
1520 1520  (((
... ... @@ -1548,9 +1548,9 @@
1548 1548  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1549 1549  
1550 1550  
1551 -**NPN output**: GND or Float. Max voltage can apply to output pin is 36v.
1549 +(% style="color:blue" %)**NPN output**(%%): GND or Float. Max voltage can apply to output pin is 36v.
1552 1552  
1553 -Note: DO pins go to float when device is power off.
1551 +(% style="color:red" %)**Note: DO pins go to float when device is power off.**
1554 1554  
1555 1555  [[image:1653357531600-905.png]]
1556 1556  
... ... @@ -1572,9 +1572,9 @@
1572 1572  
1573 1573  (% style="color:blue" %)**Specifications of the wind speed sensor:**
1574 1574  
1575 -**Red:  12~~24v**
1573 +(% style="color:red" %)**Red:  12~~24v**
1576 1576  
1577 -**Yellow:  4~~20mA**
1575 +(% style="color:#ffc000" %)**Yellow:  4~~20mA**
1578 1578  
1579 1579  **Black:  GND**
1580 1580  
... ... @@ -1607,7 +1607,6 @@
1607 1607  [[image:image-20220524100748-11.png]]
1608 1608  
1609 1609  
1610 -
1611 1611  = 4. Use AT Command =
1612 1612  
1613 1613  == 4.1 Access AT Command ==
... ... @@ -1938,7 +1938,7 @@
1938 1938  **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?
1939 1939  dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
1940 1940  
1941 -**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**
1938 +**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.**
1942 1942  
1943 1943  
1944 1944  )))
... ... @@ -1951,7 +1951,6 @@
1951 1951  
1952 1952  )))
1953 1953  
1954 -
1955 1955  === 4.2.3 Change to Class A ===
1956 1956  
1957 1957  
... ... @@ -1963,11 +1963,19 @@
1963 1963  )))
1964 1964  
1965 1965  
1966 -= 5. FAQ =
1962 += 5. Case Study =
1967 1967  
1968 -== 5.1 How to upgrade the image? ==
1964 +== 5.1 Counting how many objects pass in Flow Line ==
1969 1969  
1970 1970  
1967 +Reference Link: [[How to set up to count objects pass in flow line>>How to set up to count objects pass in flow line]]?
1968 +
1969 +
1970 += 6. FAQ =
1971 +
1972 +== 6.1 How to upgrade the image? ==
1973 +
1974 +
1971 1971  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1972 1972  
1973 1973  * Support new features
... ... @@ -1995,8 +1995,10 @@
1995 1995  
1996 1996   [[image:image-20220524103407-12.png]]
1997 1997  
2002 +
1998 1998  [[image:image-20220524103429-13.png]]
1999 1999  
2005 +
2000 2000  [[image:image-20220524104033-15.png]]
2001 2001  
2002 2002  
... ... @@ -2008,7 +2008,7 @@
2008 2008  
2009 2009  (((
2010 2010  (((
2011 -== 5.2 How to change the LoRa Frequency Bands/Region? ==
2017 +== 6.2 How to change the LoRa Frequency Bands/Region? ==
2012 2012  
2013 2013  
2014 2014  )))
... ... @@ -2021,7 +2021,7 @@
2021 2021  (((
2022 2022  
2023 2023  
2024 -== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
2030 +== 6.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
2025 2025  
2026 2026  
2027 2027  )))
... ... @@ -2084,7 +2084,7 @@
2084 2084  [[image:1653360498588-932.png||height="485" width="726"]]
2085 2085  
2086 2086  
2087 -== 5.4 Can I see counting event in Serial? ==
2093 +== 6.4 Can I see counting event in Serial? ==
2088 2088  
2089 2089  
2090 2090  (((
... ... @@ -2091,7 +2091,7 @@
2091 2091  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.
2092 2092  
2093 2093  
2094 -== 5.5 Can i use point to point communication for LT-22222-L? ==
2100 +== 6.5 Can i use point to point communication for LT-22222-L? ==
2095 2095  
2096 2096  
2097 2097  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]].
... ... @@ -2100,7 +2100,7 @@
2100 2100  )))
2101 2101  
2102 2102  (((
2103 -== 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2109 +== 6.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2104 2104  
2105 2105  
2106 2106  If the device is not shut down, but directly powered off.
... ... @@ -2112,7 +2112,7 @@
2112 2112  After restart, the status before power failure will be read from flash.
2113 2113  
2114 2114  
2115 -== 5.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2121 +== 6.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2116 2116  
2117 2117  
2118 2118  LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
... ... @@ -2121,18 +2121,18 @@
2121 2121  [[image:image-20221006170630-1.png||height="610" width="945"]]
2122 2122  
2123 2123  
2124 -== 5.8 Can LT22222-L save RO state? ==
2130 +== 6.8 Can LT22222-L save RO state? ==
2125 2125  
2126 2126  
2127 2127  Firmware version needs to be no less than 1.6.0.
2128 2128  
2129 2129  
2130 -= 6. Trouble Shooting =
2136 += 7. Trouble Shooting =
2131 2131  )))
2132 2132  
2133 2133  (((
2134 2134  (((
2135 -== 6.1 Downlink doesn't work, how to solve it? ==
2141 +== 7.1 Downlink doesn't work, how to solve it? ==
2136 2136  
2137 2137  
2138 2138  )))
... ... @@ -2145,7 +2145,7 @@
2145 2145  (((
2146 2146  
2147 2147  
2148 -== 6.2 Have trouble to upload image. ==
2154 +== 7.2 Have trouble to upload image. ==
2149 2149  
2150 2150  
2151 2151  )))
... ... @@ -2157,7 +2157,7 @@
2157 2157  (((
2158 2158  
2159 2159  
2160 -== 6.3 Why I can't join TTN in US915 /AU915 bands? ==
2166 +== 7.3 Why I can't join TTN in US915 /AU915 bands? ==
2161 2161  
2162 2162  
2163 2163  )))
... ... @@ -2167,7 +2167,7 @@
2167 2167  )))
2168 2168  
2169 2169  
2170 -= 7. Order Info =
2176 += 8. Order Info =
2171 2171  
2172 2172  
2173 2173  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
... ... @@ -2186,7 +2186,7 @@
2186 2186  
2187 2187  
2188 2188  
2189 -= 8. Packing Info =
2195 += 9. Packing Info =
2190 2190  
2191 2191  
2192 2192  **Package Includes**:
... ... @@ -2205,7 +2205,7 @@
2205 2205  
2206 2206  
2207 2207  
2208 -= 9. Support =
2214 += 10. Support =
2209 2209  
2210 2210  
2211 2211  * (((
... ... @@ -2218,9 +2218,11 @@
2218 2218  
2219 2219  )))
2220 2220  
2221 -= 10. Reference​​​​​ =
2227 += 11. Reference​​​​​ =
2222 2222  
2223 2223  
2224 2224  * 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]]
2225 2225  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2226 2226  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2233 +
2234 +
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