Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 128.7 >
edited by Xiaoling
on 2024/01/15 15:53
To version < 137.1 >
edited by Mengting Qiu
on 2024/09/12 08:51
>
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Summary

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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.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/}}
... ... @@ -55,162 +55,69 @@
55 55  
56 56  == 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 -
193 193  == 1.4 Applications ==
194 194  
195 -
196 196  * Smart Buildings & Home Automation
197 -
198 198  * Logistics and Supply Chain Management
199 -
200 200  * Smart Metering
201 -
202 202  * Smart Agriculture
203 -
204 204  * Smart Cities
205 -
206 206  * Smart Factory
207 207  
208 -
209 209  == 1.5 Hardware Variants ==
210 210  
211 211  
212 212  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
213 -|(% 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**
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**
214 214  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
215 215  (% style="text-align:center" %)
216 216  [[image:image-20230424115112-1.png||height="106" width="58"]]
... ... @@ -223,20 +223,12 @@
223 223  * 1 x Counting Port
224 224  )))
225 225  
226 -
227 227  = 2. Power ON Device =
228 228  
229 -
230 -(((
231 231  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.
232 -)))
233 233  
234 -(((
235 235  PWR will on when device is properly powered.
236 236  
237 -
238 -)))
239 -
240 240  [[image:1653297104069-180.png]]
241 241  
242 242  
... ... @@ -321,7 +321,6 @@
321 321  
322 322  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
323 323  
324 -
325 325  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
326 326  
327 327  
... ... @@ -329,7 +329,7 @@
329 329  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default. (% style="display:none" %)
330 330  
331 331  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
332 -|(% 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**
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**
333 333  |Value|(((
334 334  AVI1 voltage
335 335  )))|(((
... ... @@ -390,7 +390,6 @@
390 390  ** DO1 is high in case there is load between DO1 and V+.
391 391  ** DO1 LED is off in both case
392 392  
393 -
394 394  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
395 395  
396 396  
... ... @@ -402,7 +402,7 @@
402 402  Total : 11 bytes payload
403 403  
404 404  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
405 -|(% 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**
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**
406 406  |Value|COUNT1|COUNT2 |DIDORO*|(((
407 407  Reserve
408 408  )))|MOD
... ... @@ -469,7 +469,7 @@
469 469  **LT22222-L**: This mode the DI1 is used as a counting pin.
470 470  
471 471  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
472 -|(% 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**
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**
473 473  |Value|COUNT1|(((
474 474  ACI1 Current
475 475  )))|(((
... ... @@ -522,7 +522,7 @@
522 522  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.
523 523  
524 524  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
525 -|(% 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**
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**
526 526  |Value|COUNT1|AVI1 Counting|DIDORO*|(((
527 527  Reserve
528 528  )))|MOD
... ... @@ -582,7 +582,7 @@
582 582  **LT22222-L**: This mode the DI1 is used as a counting pin.
583 583  
584 584  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
585 -|(% 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**
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**
586 586  |Value|(((
587 587  AVI1 voltage
588 588  )))|(((
... ... @@ -718,7 +718,7 @@
718 718  MOD6 Payload : total 11 bytes payload
719 719  
720 720  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
721 -|(% 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**
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**
722 722  |Value|(((
723 723  TRI_A FLAG
724 724  )))|(((
... ... @@ -837,7 +837,6 @@
837 837  
838 838  * (% style="color:blue" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
839 839  
840 -
841 841  === 3.4.1 Common Commands ===
842 842  
843 843  
... ... @@ -1047,7 +1047,7 @@
1047 1047  01: Low,  00: High ,  11: No action
1048 1048  
1049 1049  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1050 -|(% 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**
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**
1051 1051  |02  01  00  11|Low|High|No Action
1052 1052  |02  00  11  01|High|No Action|Low
1053 1053  |02  11  01  00|No Action|Low|High
... ... @@ -1090,7 +1090,7 @@
1090 1090  (% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
1091 1091  
1092 1092  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1093 -|(% style="background-color:#4F81BD;color:white" %)**Second Byte**|(% style="background-color:#4F81BD;color:white" %)**Status**
993 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1094 1094  |0x01|DO1 set to low
1095 1095  |0x00|DO1 set to high
1096 1096  |0x11|DO1 NO Action
... ... @@ -1098,7 +1098,7 @@
1098 1098  (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
1099 1099  
1100 1100  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1101 -|(% style="background-color:#4F81BD;color:white" %)**Second Byte**|(% style="background-color:#4F81BD;color:white" %)**Status**
1001 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1102 1102  |0x01|DO2 set to low
1103 1103  |0x00|DO2 set to high
1104 1104  |0x11|DO2 NO Action
... ... @@ -1106,7 +1106,7 @@
1106 1106  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
1107 1107  
1108 1108  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1109 -|(% style="background-color:#4F81BD;color:white" %)**Second Byte**|(% style="background-color:#4F81BD;color:white" %)**Status**
1009 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1110 1110  |0x01|DO3 set to low
1111 1111  |0x00|DO3 set to high
1112 1112  |0x11|DO3 NO Action
... ... @@ -1161,10 +1161,10 @@
1161 1161  )))
1162 1162  
1163 1163  (((
1164 -01: Close ,  00: Open , 11: No action
1064 +00: Close ,  01: Open , 11: No action
1165 1165  
1166 1166  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
1167 -|(% style="background-color:#4F81BD;color:white" %)**Downlink Code**|(% style="background-color:#4F81BD;color:white" %)**RO1**|(% style="background-color:#4F81BD;color:white" %)**RO2**
1067 +|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**RO1**|(% style="background-color:#4f81bd; color:white" %)**RO2**
1168 1168  |03  00  11|Open|No Action
1169 1169  |03  01  11|Close|No Action
1170 1170  |03  11  00|No Action|Open
... ... @@ -1587,7 +1587,11 @@
1587 1587  
1588 1588  [[image:image-20230616235145-1.png]]
1589 1589  
1490 +(% style="color:blue" %)**Example5**(%%): Connect to Open Colleactor
1590 1590  
1492 +[[image:image-20240219115718-1.png]]
1493 +
1494 +
1591 1591  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1592 1592  
1593 1593  
... ... @@ -1662,12 +1662,9 @@
1662 1662  == 3.7 LEDs Indicators ==
1663 1663  
1664 1664  
1665 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1666 -|(% style="background-color:#4F81BD;color:white; width:50px" %)**LEDs**|(% style="background-color:#4F81BD;color:white; 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**
1667 1667  |**PWR**|Always on if there is power
1668 -|**SYS**|(((
1669 -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.
1670 -)))
1671 1671  |**TX**|(((
1672 1672  (((
1673 1673  Device boot: TX blinks 5 times.
... ... @@ -1682,22 +1682,17 @@
1682 1682  )))
1683 1683  )))
1684 1684  |**RX**|RX blinks once when receive a packet.
1685 -|**DO1**|
1686 -|**DO2**|
1687 -|**DO3**|
1688 -|**DI2**|(((
1689 -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
1690 1690  )))
1691 1691  |**DI2**|(((
1692 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1592 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1693 1693  )))
1694 -|**DI2**|(((
1695 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1696 -)))
1697 -|**RO1**|
1698 -|**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
1699 1699  
1700 -
1701 1701  = 4. Use AT Command =
1702 1702  
1703 1703  == 4.1 Access AT Command ==
... ... @@ -1707,10 +1707,6 @@
1707 1707  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.
1708 1708  )))
1709 1709  
1710 -(((
1711 -
1712 -)))
1713 -
1714 1714  [[image:1653358238933-385.png]]
1715 1715  
1716 1716  
... ... @@ -2305,7 +2305,6 @@
2305 2305  * (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
2306 2306  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2307 2307  
2308 -
2309 2309  = 9. Packing Info =
2310 2310  
2311 2311  
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2323 2323  * Package Size / pcs : 14.5 x 8 x 5 cm
2324 2324  * Weight / pcs : 170g
2325 2325  
2326 -
2327 2327  = 10. Support =
2328 2328  
2329 2329  
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2343 2343  * 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]]
2344 2344  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2345 2345  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
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