Skip to Content
Last modified by Mengting Qiu on 2025/06/04 18:42
From version 134.1
edited by Edwin Chen
on 2024/05/08 22:32
Change comment: There is no comment for this version
To version 126.15
edited by Xiaoling
on 2023/06/19 16:14
Change comment: There is no comment for this version

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -LT-22222-L -- LoRa IO Controller User Manual
1 +LT-22222-L LoRa IO Controller User Manual
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Edwin
1 +XWiki.Xiaoling
Content
... ... @@ -3,10 +3,6 @@
3 3  
4 4  
5 5  
6 -
7 -
8 -
9 -
10 10  **Table of Contents:**
11 11  
12 12  {{toc/}}
... ... @@ -57,73 +57,163 @@
57 57  
58 58  )))
59 59  
60 -== 1.2 Specifications ==
56 +== 1.2  Specifications ==
61 61  
58 +(((
59 +
60 +
62 62  (% style="color:#037691" %)**Hardware System:**
62 +)))
63 63  
64 -* STM32L072xxxx MCU
65 -* SX1276/78 Wireless Chip 
66 -* Power Consumption:
67 -** Idle: 4mA@12v
68 -** 20dB Transmit: 34mA@12v
69 -* Operating Temperature: -40 ~~ 85 Degree, No Dew
64 +* (((
65 +STM32L072xxxx MCU
66 +)))
67 +* (((
68 +SX1276/78 Wireless Chip 
69 +)))
70 +* (((
71 +(((
72 +Power Consumption:
73 +)))
70 70  
75 +* (((
76 +Idle: 4mA@12v
77 +)))
78 +* (((
79 +20dB Transmit: 34mA@12v
80 +)))
81 +)))
71 71  
83 +(((
84 +
85 +
72 72  (% style="color:#037691" %)**Interface for Model: LT22222-L:**
87 +)))
73 73  
74 -* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
75 -* 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
76 -* 2 x Relay Output (5A@250VAC / 30VDC)
77 -* 2 x 0~~20mA Analog Input (res:0.01mA)
78 -* 2 x 0~~30V Analog Input (res:0.01v)
79 -* Power Input 7~~ 24V DC. 
89 +* (((
90 +2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
91 +)))
92 +* (((
93 +2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
94 +)))
95 +* (((
96 +2 x Relay Output (5A@250VAC / 30VDC)
97 +)))
98 +* (((
99 +2 x 0~~20mA Analog Input (res:0.01mA)
100 +)))
101 +* (((
102 +2 x 0~~30V Analog Input (res:0.01v)
103 +)))
104 +* (((
105 +Power Input 7~~ 24V DC. 
106 +)))
80 80  
108 +(((
109 +
81 81  
82 82  (% style="color:#037691" %)**LoRa Spec:**
112 +)))
83 83  
84 -* Frequency Range:
85 -** Band 1 (HF): 862 ~~ 1020 Mhz
86 -** Band 2 (LF): 410 ~~ 528 Mhz
87 -* 168 dB maximum link budget.
88 -* +20 dBm - 100 mW constant RF output vs.
89 -* +14 dBm high efficiency PA.
90 -* Programmable bit rate up to 300 kbps.
91 -* High sensitivity: down to -148 dBm.
92 -* Bullet-proof front end: IIP3 = -12.5 dBm.
93 -* Excellent blocking immunity.
94 -* Low RX current of 10.3 mA, 200 nA register retention.
95 -* Fully integrated synthesizer with a resolution of 61 Hz.
96 -* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
97 -* Built-in bit synchronizer for clock recovery.
98 -* Preamble detection.
99 -* 127 dB Dynamic Range RSSI.
100 -* Automatic RF Sense and CAD with ultra-fast AFC.
101 -* Packet engine up to 256 bytes with CRC.
114 +* (((
115 +(((
116 +Frequency Range:
117 +)))
102 102  
119 +* (((
120 +Band 1 (HF): 862 ~~ 1020 Mhz
121 +)))
122 +* (((
123 +Band 2 (LF): 410 ~~ 528 Mhz
124 +)))
125 +)))
126 +* (((
127 +168 dB maximum link budget.
128 +)))
129 +* (((
130 ++20 dBm - 100 mW constant RF output vs.
131 +)))
132 +* (((
133 ++14 dBm high efficiency PA.
134 +)))
135 +* (((
136 +Programmable bit rate up to 300 kbps.
137 +)))
138 +* (((
139 +High sensitivity: down to -148 dBm.
140 +)))
141 +* (((
142 +Bullet-proof front end: IIP3 = -12.5 dBm.
143 +)))
144 +* (((
145 +Excellent blocking immunity.
146 +)))
147 +* (((
148 +Low RX current of 10.3 mA, 200 nA register retention.
149 +)))
150 +* (((
151 +Fully integrated synthesizer with a resolution of 61 Hz.
152 +)))
153 +* (((
154 +FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
155 +)))
156 +* (((
157 +Built-in bit synchronizer for clock recovery.
158 +)))
159 +* (((
160 +Preamble detection.
161 +)))
162 +* (((
163 +127 dB Dynamic Range RSSI.
164 +)))
165 +* (((
166 +Automatic RF Sense and CAD with ultra-fast AFC.
167 +)))
168 +* (((
169 +Packet engine up to 256 bytes with CRC.
170 +
171 +
172 +
173 +)))
174 +
103 103  == 1.3 Features ==
104 104  
177 +
105 105  * LoRaWAN Class A & Class C protocol
179 +
106 106  * Optional Customized LoRa Protocol
181 +
107 107  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
183 +
108 108  * AT Commands to change parameters
185 +
109 109  * Remote configure parameters via LoRa Downlink
187 +
110 110  * Firmware upgradable via program port
189 +
111 111  * Counting
112 112  
113 -== 1.4 Applications ==
192 +== 1.4  Applications ==
114 114  
194 +
115 115  * Smart Buildings & Home Automation
196 +
116 116  * Logistics and Supply Chain Management
198 +
117 117  * Smart Metering
200 +
118 118  * Smart Agriculture
202 +
119 119  * Smart Cities
204 +
120 120  * Smart Factory
121 121  
207 +
122 122  == 1.5 Hardware Variants ==
123 123  
124 124  
125 125  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
126 -|(% style="background-color:#4f81bd; color:white; width:103px" %)**Model**|(% style="background-color:#4f81bd; color:white; width:131px" %)**Photo**|(% style="background-color:#4f81bd; color:white; width:266px" %)**Description**
212 +|(% 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:266px" %)**Description**
127 127  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
128 128  (% style="text-align:center" %)
129 129  [[image:image-20230424115112-1.png||height="106" width="58"]]
... ... @@ -138,10 +138,17 @@
138 138  
139 139  = 2. Power ON Device =
140 140  
227 +
228 +(((
141 141  The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
230 +)))
142 142  
232 +(((
143 143  PWR will on when device is properly powered.
144 144  
235 +
236 +)))
237 +
145 145  [[image:1653297104069-180.png]]
146 146  
147 147  
... ... @@ -200,6 +200,7 @@
200 200  [[image:1653298023685-319.png]]
201 201  
202 202  
296 +
203 203  (((
204 204  (% style="color:blue" %)**Step 2**(%%): Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
205 205  
... ... @@ -233,7 +233,7 @@
233 233  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default. (% style="display:none" %)
234 234  
235 235  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
236 -|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
330 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**
237 237  |Value|(((
238 238  AVI1 voltage
239 239  )))|(((
... ... @@ -255,7 +255,7 @@
255 255  |RO1|RO2|DI3|DI2|DI1|DO3|DO2|DO1
256 256  )))
257 257  
258 -* RO is for relay. ROx=1 : close, ROx=0 always open.
352 +* RO is for relay. ROx=1 : close，ROx=0 always open.
259 259  * DI is for digital input. DIx=1: high or float, DIx=0: low.
260 260  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
261 261  
... ... @@ -266,7 +266,7 @@
266 266  
267 267  **The value for the interface is:  **
268 268  
269 -AVI1 channel voltage is 0x04AB/1000=1195(DEC)/1000=1.195V
363 +AVI1 channel voltage is 0x04AB/1000=1195（DEC）/1000=1.195V
270 270  
271 271  AVI2 channel voltage is 0x04AC/1000=1.196V
272 272  
... ... @@ -294,6 +294,7 @@
294 294  ** DO1 is high in case there is load between DO1 and V+.
295 295  ** DO1 LED is off in both case
296 296  
391 +
297 297  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
298 298  
299 299  
... ... @@ -305,7 +305,7 @@
305 305  Total : 11 bytes payload
306 306  
307 307  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
308 -|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
403 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**
309 309  |Value|COUNT1|COUNT2 |DIDORO*|(((
310 310  Reserve
311 311  )))|MOD
... ... @@ -318,7 +318,7 @@
318 318  |**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
319 319  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
320 320  
321 -RO is for relay. ROx=1 : close , ROx=0 always open.
416 +RO is for relay. ROx=1 : close，ROx=0 always open.
322 322  )))
323 323  
324 324  * FIRST: Indicate this is the first packet after join network.
... ... @@ -326,8 +326,6 @@
326 326  
327 327  (((
328 328  (% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
329 -
330 -
331 331  )))
332 332  
333 333  (((
... ... @@ -334,6 +334,7 @@
334 334  **To use counting mode, please run:**
335 335  )))
336 336  
430 +
337 337  (((
338 338  (% class="box infomessage" %)
339 339  (((
... ... @@ -372,7 +372,7 @@
372 372  **LT22222-L**: This mode the DI1 is used as a counting pin.
373 373  
374 374  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
375 -|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
469 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**
376 376  |Value|COUNT1|(((
377 377  ACI1 Current
378 378  )))|(((
... ... @@ -387,7 +387,7 @@
387 387  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
388 388  )))
389 389  
390 -* RO is for relay. ROx=1 : close, ROx=0 always open.
484 +* RO is for relay. ROx=1 : close，ROx=0 always open.
391 391  * FIRST: Indicate this is the first packet after join network.
392 392  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
393 393  
... ... @@ -425,7 +425,7 @@
425 425  The AVI1 is also used for counting. AVI1 is used to monitor the voltage. It will check the voltage **every 60s**, if voltage is higher or lower than VOLMAX mV, the AVI1 Counting increase 1, so AVI1 counting can be used to measure a machine working hour.
426 426  
427 427  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
428 -|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
522 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**
429 429  |Value|COUNT1|AVI1 Counting|DIDORO*|(((
430 430  Reserve
431 431  )))|MOD
... ... @@ -439,7 +439,7 @@
439 439  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
440 440  )))
441 441  
442 -* RO is for relay. ROx=1 : close, ROx=0 always open.
536 +* RO is for relay. ROx=1 : close，ROx=0 always open.
443 443  * FIRST: Indicate this is the first packet after join network.
444 444  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
445 445  
... ... @@ -485,7 +485,7 @@
485 485  **LT22222-L**: This mode the DI1 is used as a counting pin.
486 486  
487 487  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
488 -|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
582 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**
489 489  |Value|(((
490 490  AVI1 voltage
491 491  )))|(((
... ... @@ -504,7 +504,7 @@
504 504  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
505 505  )))
506 506  
507 -* RO is for relay. ROx=1 : close, ROx=0 always open.
601 +* RO is for relay. ROx=1 : close，ROx=0 always open.
508 508  * FIRST: Indicate this is the first packet after join network.
509 509  * (((
510 510  DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
... ... @@ -547,6 +547,7 @@
547 547  1. Periodically uplink (Base on TDC time). Payload is same as the normal MOD (MOD 1 for above command). This uplink uses LoRaWAN (% style="color:#4f81bd" %)**unconfirmed**(%%) data type
548 548  1. Trigger uplink when meet the trigger condition. LT will sent two packets in this case, the first uplink use payload specify in this mod (mod=6), the second packets use the normal mod payload(MOD=1 for above settings). Both Uplinks use LoRaWAN (% style="color:#4f81bd" %)**CONFIRMED data type.**
549 549  
644 +
550 550  (% style="color:#037691" %)**AT Command to set Trigger Condition**:
551 551  
552 552  
... ... @@ -621,7 +621,7 @@
621 621  MOD6 Payload : total 11 bytes payload
622 622  
623 623  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
624 -|(% style="background-color:#4f81bd; color:white; width:60px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:69px" %)**1**|(% style="background-color:#4f81bd; color:white; width:69px" %)**1**|(% style="background-color:#4f81bd; color:white; width:109px" %)**1**|(% style="background-color:#4f81bd; color:white; width:49px" %)**6**|(% style="background-color:#4f81bd; color:white; width:109px" %)**1**|(% style="background-color:#4f81bd; color:white; width:50px" %)**1**
719 +|(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:69px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:69px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:109px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:49px" %)**6**|(% style="background-color:#d9e2f3; color:#0070c0; width:109px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**1**
625 625  |Value|(((
626 626  TRI_A FLAG
627 627  )))|(((
... ... @@ -949,7 +949,7 @@
949 949  01: Low,  00: High ,  11: No action
950 950  
951 951  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
952 -|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**DO1**|(% style="background-color:#4f81bd; color:white" %)**DO2**|(% style="background-color:#4f81bd; color:white" %)**DO3**
1047 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Downlink Code**|(% style="background-color:#d9e2f3; color:#0070c0" %)**DO1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**DO2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**DO3**
953 953  |02  01  00  11|Low|High|No Action
954 954  |02  00  11  01|High|No Action|Low
955 955  |02  11  01  00|No Action|Low|High
... ... @@ -992,7 +992,7 @@
992 992  (% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
993 993  
994 994  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
995 -|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1090 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
996 996  |0x01|DO1 set to low
997 997  |0x00|DO1 set to high
998 998  |0x11|DO1 NO Action
... ... @@ -1000,7 +1000,7 @@
1000 1000  (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
1001 1001  
1002 1002  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1003 -|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1098 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1004 1004  |0x01|DO2 set to low
1005 1005  |0x00|DO2 set to high
1006 1006  |0x11|DO2 NO Action
... ... @@ -1008,7 +1008,7 @@
1008 1008  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
1009 1009  
1010 1010  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1011 -|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1106 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1012 1012  |0x01|DO3 set to low
1013 1013  |0x00|DO3 set to high
1014 1014  |0x11|DO3 NO Action
... ... @@ -1045,7 +1045,7 @@
1045 1045  
1046 1046  
1047 1047  
1048 -==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1143 +==== 3.4.2. 14 Relay ~-~- Control Relay Output RO1/RO2 ====
1049 1049  
1050 1050  
1051 1051  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1063,10 +1063,10 @@
1063 1063  )))
1064 1064  
1065 1065  (((
1066 -00: Close ,  01: Open , 11: No action
1161 +01: Close ,  00: Open , 11: No action
1067 1067  
1068 1068  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
1069 -|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**RO1**|(% style="background-color:#4f81bd; color:white" %)**RO2**
1164 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Downlink Code**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO2**
1070 1070  |03  00  11|Open|No Action
1071 1071  |03  01  11|Close|No Action
1072 1072  |03  11  00|No Action|Open
... ... @@ -1337,6 +1337,7 @@
1337 1337  [[image:1653356838789-523.png||height="337" width="740"]]
1338 1338  
1339 1339  
1435 +
1340 1340  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1341 1341  
1342 1342  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1489,11 +1489,8 @@
1489 1489  
1490 1490  [[image:image-20230616235145-1.png]]
1491 1491  
1492 -(% style="color:blue" %)**Example5**(%%): Connect to Open Colleactor
1493 1493  
1494 -[[image:image-20240219115718-1.png]]
1495 1495  
1496 -
1497 1497  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1498 1498  
1499 1499  
... ... @@ -1568,8 +1568,8 @@
1568 1568  == 3.7 LEDs Indicators ==
1569 1569  
1570 1570  
1571 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1572 -|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:460px" %)**Feature**
1664 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1665 +|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**LEDs**|(% style="background-color:#d9e2f3; color:#0070c0; width:470px" %)**Feature**
1573 1573  |**PWR**|Always on if there is power
1574 1574  |**SYS**|(((
1575 1575  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.
... ... @@ -1612,6 +1612,10 @@
1612 1612  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.
1613 1613  )))
1614 1614  
1708 +(((
1709 +
1710 +)))
1711 +
1615 1615  [[image:1653358238933-385.png]]
1616 1616  
1617 1617  
... ... @@ -1930,6 +1930,8 @@
1930 1930  dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
1931 1931  
1932 1932  **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.**
2030 +
2031 +
1933 1933  )))
1934 1934  
1935 1935  (((
... ... @@ -1936,6 +1936,9 @@
1936 1936  [[image:1653359097980-169.png||height="188" width="729"]]
1937 1937  )))
1938 1938  
2038 +(((
2039 +
2040 +)))
1939 1939  
1940 1940  === 4.2.3 Change to Class A ===
1941 1941  
... ... @@ -1943,9 +1943,8 @@
1943 1943  (((
1944 1944  (% style="color:blue" %)**If sensor JOINED:**
1945 1945  
1946 -(% style="background-color:#dcdcdc" %)**AT+CLASS=A**
1947 -
1948 -(% style="background-color:#dcdcdc" %)**ATZ**
2048 +(% style="background-color:#dcdcdc" %)**AT+CLASS=A
2049 +ATZ**
1949 1949  )))
1950 1950  
1951 1951  
... ... @@ -1998,6 +1998,7 @@
1998 1998  
1999 1999  (% 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:
2000 2000  
2102 +
2001 2001  [[image:1653360054704-518.png||height="186" width="745"]]
2002 2002  
2003 2003  
... ... @@ -2061,21 +2061,13 @@
2061 2061  
2062 2062  (((
2063 2063  (% style="background-color:#dcdcdc" %)**123456** (%%) :  Enter Password to have AT access.
2064 -
2065 2065  (% style="background-color:#dcdcdc" %)**AT+FDR**(%%)  :  Reset Parameters to Factory Default, Keys Reserve
2066 -
2067 2067  (% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) :  Set to ABP mode
2068 -
2069 2069  (% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) :  Set the Adaptive Data Rate Off
2070 -
2071 2071  (% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) :  Set Data Rate (Set AT+DR=3 for 915 band)
2072 -
2073 2073  (% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%) :  Set transmit interval to 60 seconds
2074 -
2075 2075  (% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4Mhz
2076 -
2077 2077  (% style="background-color:#dcdcdc" %)**AT+DADDR=26 01 1A F1**(%%)  :  Set Device Address to 26 01 1A F1
2078 -
2079 2079  (% style="background-color:#dcdcdc" %)**ATZ**        (%%) :  Reset MCU
2080 2080  )))
2081 2081  
... ... @@ -2087,7 +2087,7 @@
2087 2087  [[image:1653360498588-932.png||height="485" width="726"]]
2088 2088  
2089 2089  
2090 -== 6.4 How to change the uplink interval? ==
2184 +== 6.4 How to change the uplink interval？ ==
2091 2091  
2092 2092  
2093 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/]]
... ... @@ -2136,12 +2136,6 @@
2136 2136  Firmware version needs to be no less than 1.6.0.
2137 2137  
2138 2138  
2139 -== 6.10 Why does the LT22222 always report 15.585V when measuring AVI? ==
2140 -
2141 -
2142 -It is likely that the GND is not connected during the measurement, or the wire connected to the GND is loose.
2143 -
2144 -
2145 2145  = 7. Trouble Shooting =
2146 2146  )))
2147 2147  
... ... @@ -2182,13 +2182,6 @@
2182 2182  )))
2183 2183  
2184 2184  
2185 -== 7.4 Why can LT22222 perform Uplink normally, but cannot receive Downlink? ==
2186 -
2187 -
2188 -The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue state.
2189 -Use this command to bring their counts back together: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resetsthedownlinkpacketcount"]]
2190 -
2191 -
2192 2192  = 8. Order Info =
2193 2193  
2194 2194  
... ... @@ -2242,3 +2242,5 @@
2242 2242  * 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]]
2243 2243  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2244 2244  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2326 +
2327 +
image-20240219115718-1.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Edwin
Size
... ... @@ -1,1 +1,0 @@
1 -27.7 KB
Content