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 133.1
edited by Edwin Chen
on 2024/05/08 22:27
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -64,11 +64,11 @@
64 64  * STM32L072xxxx MCU
65 65  * SX1276/78 Wireless Chip 
66 66  * Power Consumption:
67 -** Idle: 4mA@12v
68 -** 20dB Transmit: 34mA@12v
69 -* Operating Temperature: -40 ~~ 85 Degree, No Dew
70 70  
68 +* Idle: 4mA@12v
69 +* 20dB Transmit: [[34mA@12v>>mailto:34mA@12v]]
71 71  
71 +
72 72  (% style="color:#037691" %)**Interface for Model: LT22222-L:**
73 73  
74 74  * 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
... ... @@ -81,42 +81,98 @@
81 81  
82 82  (% style="color:#037691" %)**LoRa Spec:**
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.
102 102  
85 +* (((
86 +(((
87 +Frequency Range:
88 +)))
89 +
90 +* (((
91 +Band 1 (HF): 862 ~~ 1020 Mhz
92 +)))
93 +* (((
94 +Band 2 (LF): 410 ~~ 528 Mhz
95 +)))
96 +)))
97 +* (((
98 +168 dB maximum link budget.
99 +)))
100 +* (((
101 ++20 dBm - 100 mW constant RF output vs.
102 +)))
103 +* (((
104 ++14 dBm high efficiency PA.
105 +)))
106 +* (((
107 +Programmable bit rate up to 300 kbps.
108 +)))
109 +* (((
110 +High sensitivity: down to -148 dBm.
111 +)))
112 +* (((
113 +Bullet-proof front end: IIP3 = -12.5 dBm.
114 +)))
115 +* (((
116 +Excellent blocking immunity.
117 +)))
118 +* (((
119 +Low RX current of 10.3 mA, 200 nA register retention.
120 +)))
121 +* (((
122 +Fully integrated synthesizer with a resolution of 61 Hz.
123 +)))
124 +* (((
125 +FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
126 +)))
127 +* (((
128 +Built-in bit synchronizer for clock recovery.
129 +)))
130 +* (((
131 +Preamble detection.
132 +)))
133 +* (((
134 +127 dB Dynamic Range RSSI.
135 +)))
136 +* (((
137 +Automatic RF Sense and CAD with ultra-fast AFC.
138 +)))
139 +* (((
140 +Packet engine up to 256 bytes with CRC.
141 +
142 +
143 +
144 +)))
145 +
103 103  == 1.3 Features ==
104 104  
148 +
105 105  * LoRaWAN Class A & Class C protocol
150 +
106 106  * Optional Customized LoRa Protocol
152 +
107 107  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
154 +
108 108  * AT Commands to change parameters
156 +
109 109  * Remote configure parameters via LoRa Downlink
158 +
110 110  * Firmware upgradable via program port
160 +
111 111  * Counting
112 112  
113 113  == 1.4 Applications ==
114 114  
165 +
115 115  * Smart Buildings & Home Automation
167 +
116 116  * Logistics and Supply Chain Management
169 +
117 117  * Smart Metering
171 +
118 118  * Smart Agriculture
173 +
119 119  * Smart Cities
175 +
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  
197 +
198 +(((
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.
200 +)))
142 142  
202 +(((
143 143  PWR will on when device is properly powered.
144 144  
205 +
206 +)))
207 +
145 145  [[image:1653297104069-180.png]]
146 146  
147 147