Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 128.4 >
edited by Xiaoling
on 2023/11/17 08:45
To version < 136.1 >
edited by Mengting Qiu
on 2024/09/02 18:13
>
Change comment: There is no comment for this version

Summary

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Title
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1 -LT-22222-L LoRa IO Controller User Manual
1 +LT-22222-L -- LoRa IO Controller User Manual
Author
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1 -XWiki.Xiaoling
1 +XWiki.ting
Content
... ... @@ -3,6 +3,10 @@
3 3  
4 4  
5 5  
6 +
7 +
8 +
9 +
6 6  **Table of Contents:**
7 7  
8 8  {{toc/}}
... ... @@ -53,155 +53,64 @@
53 53  
54 54  )))
55 55  
56 -== 1.2  Specifications ==
60 +== 1.2 Specifications ==
57 57  
58 -(((
59 -
60 -
61 61  (% style="color:#037691" %)**Hardware System:**
62 -)))
63 63  
64 -* (((
65 -STM32L072xxxx MCU
66 -)))
67 -* (((
68 -SX1276/78 Wireless Chip 
69 -)))
70 -* (((
71 -(((
72 -Power Consumption:
73 -)))
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
74 74  
75 -* (((
76 -Idle: 4mA@12v
77 -)))
78 -* (((
79 -20dB Transmit: 34mA@12v
80 -)))
81 -)))
82 -
83 -(((
84 -
85 -
86 86  (% style="color:#037691" %)**Interface for Model: LT22222-L:**
87 -)))
88 88  
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 -)))
73 +* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
74 +* 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
75 +* 2 x Relay Output (5A@250VAC / 30VDC)
76 +* 2 x 0~~20mA Analog Input (res:0.01mA)
77 +* 2 x 0~~30V Analog Input (res:0.01v)
78 +* Power Input 7~~ 24V DC. 
107 107  
108 -(((
109 -
110 -
111 111  (% style="color:#037691" %)**LoRa Spec:**
112 -)))
113 113  
114 -* (((
115 -(((
116 -Frequency Range:
117 -)))
82 +* Frequency Range:
83 +** Band 1 (HF): 862 ~~ 1020 Mhz
84 +** Band 2 (LF): 410 ~~ 528 Mhz
85 +* 168 dB maximum link budget.
86 +* +20 dBm - 100 mW constant RF output vs.
87 +* +14 dBm high efficiency PA.
88 +* Programmable bit rate up to 300 kbps.
89 +* High sensitivity: down to -148 dBm.
90 +* Bullet-proof front end: IIP3 = -12.5 dBm.
91 +* Excellent blocking immunity.
92 +* Low RX current of 10.3 mA, 200 nA register retention.
93 +* Fully integrated synthesizer with a resolution of 61 Hz.
94 +* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
95 +* Built-in bit synchronizer for clock recovery.
96 +* Preamble detection.
97 +* 127 dB Dynamic Range RSSI.
98 +* Automatic RF Sense and CAD with ultra-fast AFC.
99 +* Packet engine up to 256 bytes with CRC.
118 118  
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 -
175 175  == 1.3 Features ==
176 176  
177 -
178 178  * LoRaWAN Class A & Class C protocol
179 -
180 180  * Optional Customized LoRa Protocol
181 -
182 182  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
183 -
184 184  * AT Commands to change parameters
185 -
186 186  * Remote configure parameters via LoRa Downlink
187 -
188 188  * Firmware upgradable via program port
189 -
190 190  * Counting
191 191  
192 -== 1.4  Applications ==
111 +== 1.4 Applications ==
193 193  
194 -
195 195  * Smart Buildings & Home Automation
196 -
197 197  * Logistics and Supply Chain Management
198 -
199 199  * Smart Metering
200 -
201 201  * Smart Agriculture
202 -
203 203  * Smart Cities
204 -
205 205  * Smart Factory
206 206  
207 207  == 1.5 Hardware Variants ==
... ... @@ -208,7 +208,7 @@
208 208  
209 209  
210 210  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
211 -|(% 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**
124 +|(% 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**
212 212  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
213 213  (% style="text-align:center" %)
214 214  [[image:image-20230424115112-1.png||height="106" width="58"]]
... ... @@ -223,17 +223,10 @@
223 223  
224 224  = 2. Power ON Device =
225 225  
226 -
227 -(((
228 228  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.
229 -)))
230 230  
231 -(((
232 232  PWR will on when device is properly powered.
233 233  
234 -
235 -)))
236 -
237 237  [[image:1653297104069-180.png]]
238 238  
239 239  
... ... @@ -325,7 +325,7 @@
325 325  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default. (% style="display:none" %)
326 326  
327 327  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
328 -|(% 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**
234 +|(% 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**
329 329  |Value|(((
330 330  AVI1 voltage
331 331  )))|(((
... ... @@ -397,7 +397,7 @@
397 397  Total : 11 bytes payload
398 398  
399 399  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
400 -|(% 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**
306 +|(% 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**
401 401  |Value|COUNT1|COUNT2 |DIDORO*|(((
402 402  Reserve
403 403  )))|MOD
... ... @@ -464,7 +464,7 @@
464 464  **LT22222-L**: This mode the DI1 is used as a counting pin.
465 465  
466 466  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
467 -|(% 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**
373 +|(% 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**
468 468  |Value|COUNT1|(((
469 469  ACI1 Current
470 470  )))|(((
... ... @@ -517,7 +517,7 @@
517 517  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.
518 518  
519 519  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
520 -|(% 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**
426 +|(% 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**
521 521  |Value|COUNT1|AVI1 Counting|DIDORO*|(((
522 522  Reserve
523 523  )))|MOD
... ... @@ -577,7 +577,7 @@
577 577  **LT22222-L**: This mode the DI1 is used as a counting pin.
578 578  
579 579  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
580 -|(% 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**
486 +|(% 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**
581 581  |Value|(((
582 582  AVI1 voltage
583 583  )))|(((
... ... @@ -713,7 +713,7 @@
713 713  MOD6 Payload : total 11 bytes payload
714 714  
715 715  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
716 -|(% 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**
622 +|(% 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**
717 717  |Value|(((
718 718  TRI_A FLAG
719 719  )))|(((
... ... @@ -1041,7 +1041,7 @@
1041 1041  01: Low,  00: High ,  11: No action
1042 1042  
1043 1043  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1044 -|(% 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**
950 +|(% 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**
1045 1045  |02  01  00  11|Low|High|No Action
1046 1046  |02  00  11  01|High|No Action|Low
1047 1047  |02  11  01  00|No Action|Low|High
... ... @@ -1084,7 +1084,7 @@
1084 1084  (% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
1085 1085  
1086 1086  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1087 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
993 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1088 1088  |0x01|DO1 set to low
1089 1089  |0x00|DO1 set to high
1090 1090  |0x11|DO1 NO Action
... ... @@ -1092,7 +1092,7 @@
1092 1092  (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
1093 1093  
1094 1094  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1095 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1001 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1096 1096  |0x01|DO2 set to low
1097 1097  |0x00|DO2 set to high
1098 1098  |0x11|DO2 NO Action
... ... @@ -1100,7 +1100,7 @@
1100 1100  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
1101 1101  
1102 1102  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1103 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1009 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1104 1104  |0x01|DO3 set to low
1105 1105  |0x00|DO3 set to high
1106 1106  |0x11|DO3 NO Action
... ... @@ -1155,10 +1155,10 @@
1155 1155  )))
1156 1156  
1157 1157  (((
1158 -01: Close ,  00: Open , 11: No action
1064 +00: Close ,  01: Open , 11: No action
1159 1159  
1160 1160  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
1161 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Downlink Code**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO2**
1067 +|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**RO1**|(% style="background-color:#4f81bd; color:white" %)**RO2**
1162 1162  |03  00  11|Open|No Action
1163 1163  |03  01  11|Close|No Action
1164 1164  |03  11  00|No Action|Open
... ... @@ -1581,7 +1581,11 @@
1581 1581  
1582 1582  [[image:image-20230616235145-1.png]]
1583 1583  
1490 +(% style="color:blue" %)**Example5**(%%): Connect to Open Colleactor
1584 1584  
1492 +[[image:image-20240219115718-1.png]]
1493 +
1494 +
1585 1585  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1586 1586  
1587 1587  
... ... @@ -1656,12 +1656,9 @@
1656 1656  == 3.7 LEDs Indicators ==
1657 1657  
1658 1658  
1659 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1660 -|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**LEDs**|(% style="background-color:#d9e2f3; color:#0070c0; width:470px" %)**Feature**
1569 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1570 +|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:460px" %)**Feature**
1661 1661  |**PWR**|Always on if there is power
1662 -|**SYS**|(((
1663 -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.
1664 -)))
1665 1665  |**TX**|(((
1666 1666  (((
1667 1667  Device boot: TX blinks 5 times.
... ... @@ -1676,20 +1676,16 @@
1676 1676  )))
1677 1677  )))
1678 1678  |**RX**|RX blinks once when receive a packet.
1679 -|**DO1**|
1680 -|**DO2**|
1681 -|**DO3**|
1682 -|**DI2**|(((
1683 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1586 +|**DO1**|For LT-22222-L: ON when DO1 is low, LOW when DO1 is high
1587 +|**DO2**|For LT-22222-L: ON when DO2 is low, LOW when DO2 is high
1588 +|**DI1**|(((
1589 +For LT-22222-L: ON when DI1 is high, LOW when DI1 is low
1684 1684  )))
1685 1685  |**DI2**|(((
1686 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1592 +For LT-22222-L: ON when DI2 is high, OFF when DI2 is low
1687 1687  )))
1688 -|**DI2**|(((
1689 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1690 -)))
1691 -|**RO1**|
1692 -|**RO2**|
1594 +|**RO1**|For LT-22222-L: ON when RO1 is closed, LOW when RO1 is open
1595 +|**RO2**|For LT-22222-L: ON when RO2 is closed, LOW when RO2 is open
1693 1693  
1694 1694  = 4. Use AT Command =
1695 1695  
... ... @@ -1700,10 +1700,6 @@
1700 1700  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.
1701 1701  )))
1702 1702  
1703 -(((
1704 -
1705 -)))
1706 -
1707 1707  [[image:1653358238933-385.png]]
1708 1708  
1709 1709  
... ... @@ -2334,5 +2334,3 @@
2334 2334  * 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]]
2335 2335  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2336 2336  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
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