Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 134.1 >
edited by Edwin Chen
on 2024/05/08 22:32
To version < 132.2 >
edited by Xiaoling
on 2024/03/05 08:51
>
Change comment: There is no comment for this version

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Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Edwin
1 +XWiki.Xiaoling
Content
... ... @@ -59,64 +59,153 @@
59 59  
60 60  == 1.2 Specifications ==
61 61  
62 +(((
63 +
64 +
62 62  (% style="color:#037691" %)**Hardware System:**
66 +)))
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
68 +* (((
69 +STM32L072xxxx MCU
70 +)))
71 +* (((
72 +SX1276/78 Wireless Chip 
73 +)))
74 +* (((
75 +(((
76 +Power Consumption:
77 +)))
70 70  
79 +* (((
80 +Idle: 4mA@12v
81 +)))
82 +* (((
83 +20dB Transmit: 34mA@12v
84 +)))
85 +)))
71 71  
87 +(((
88 +
89 +
72 72  (% style="color:#037691" %)**Interface for Model: LT22222-L:**
91 +)))
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. 
93 +* (((
94 +2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
95 +)))
96 +* (((
97 +2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
98 +)))
99 +* (((
100 +2 x Relay Output (5A@250VAC / 30VDC)
101 +)))
102 +* (((
103 +2 x 0~~20mA Analog Input (res:0.01mA)
104 +)))
105 +* (((
106 +2 x 0~~30V Analog Input (res:0.01v)
107 +)))
108 +* (((
109 +Power Input 7~~ 24V DC. 
110 +)))
80 80  
112 +(((
113 +
81 81  
82 82  (% style="color:#037691" %)**LoRa Spec:**
116 +)))
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.
118 +* (((
119 +(((
120 +Frequency Range:
121 +)))
102 102  
123 +* (((
124 +Band 1 (HF): 862 ~~ 1020 Mhz
125 +)))
126 +* (((
127 +Band 2 (LF): 410 ~~ 528 Mhz
128 +)))
129 +)))
130 +* (((
131 +168 dB maximum link budget.
132 +)))
133 +* (((
134 ++20 dBm - 100 mW constant RF output vs.
135 +)))
136 +* (((
137 ++14 dBm high efficiency PA.
138 +)))
139 +* (((
140 +Programmable bit rate up to 300 kbps.
141 +)))
142 +* (((
143 +High sensitivity: down to -148 dBm.
144 +)))
145 +* (((
146 +Bullet-proof front end: IIP3 = -12.5 dBm.
147 +)))
148 +* (((
149 +Excellent blocking immunity.
150 +)))
151 +* (((
152 +Low RX current of 10.3 mA, 200 nA register retention.
153 +)))
154 +* (((
155 +Fully integrated synthesizer with a resolution of 61 Hz.
156 +)))
157 +* (((
158 +FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
159 +)))
160 +* (((
161 +Built-in bit synchronizer for clock recovery.
162 +)))
163 +* (((
164 +Preamble detection.
165 +)))
166 +* (((
167 +127 dB Dynamic Range RSSI.
168 +)))
169 +* (((
170 +Automatic RF Sense and CAD with ultra-fast AFC.
171 +)))
172 +* (((
173 +Packet engine up to 256 bytes with CRC.
174 +
175 +
176 +
177 +)))
178 +
103 103  == 1.3 Features ==
104 104  
181 +
105 105  * LoRaWAN Class A & Class C protocol
183 +
106 106  * Optional Customized LoRa Protocol
185 +
107 107  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
187 +
108 108  * AT Commands to change parameters
189 +
109 109  * Remote configure parameters via LoRa Downlink
191 +
110 110  * Firmware upgradable via program port
193 +
111 111  * Counting
112 112  
113 113  == 1.4 Applications ==
114 114  
198 +
115 115  * Smart Buildings & Home Automation
200 +
116 116  * Logistics and Supply Chain Management
202 +
117 117  * Smart Metering
204 +
118 118  * Smart Agriculture
206 +
119 119  * Smart Cities
208 +
120 120  * Smart Factory
121 121  
122 122  == 1.5 Hardware Variants ==
... ... @@ -138,10 +138,17 @@
138 138  
139 139  = 2. Power ON Device =
140 140  
230 +
231 +(((
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.
233 +)))
142 142  
235 +(((
143 143  PWR will on when device is properly powered.
144 144  
238 +
239 +)))
240 +
145 145  [[image:1653297104069-180.png]]
146 146  
147 147  
... ... @@ -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  
1711 +(((
1712 +
1713 +)))
1714 +
1615 1615  [[image:1653358238933-385.png]]
1616 1616  
1617 1617  

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