Changes for page LT-22222-L -- LoRa I/O Controller User Manual
Last modified by Saxer Lin on 2025/04/15 17:24
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... ... @@ -45,114 +45,44 @@ 45 45 46 46 == 1.2 Specifications == 47 47 48 -((( 49 49 **Hardware System:** 50 -))) 51 51 52 -* ((( 53 -STM32L072CZT6 MCU 54 -))) 55 -* ((( 56 -SX1276/78 Wireless Chip 57 -))) 58 -* ((( 59 -((( 60 -Power Consumption: 61 -))) 50 +* STM32L072CZT6 MCU 51 +* SX1276/78 Wireless Chip 52 +* Power Consumption: 53 +** Idle: 4mA@12v 54 +** 20dB Transmit: 34mA@12v 62 62 63 -* ((( 64 -Idle: 4mA@12v 65 -))) 66 -* ((( 67 -20dB Transmit: 34mA@12v 68 -))) 69 -))) 70 - 71 -((( 72 72 **Interface for Model: LT22222-L:** 73 -))) 74 74 75 -* ((( 76 -2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor) 77 -))) 78 -* ((( 79 -2 x Digital Output (NPN output. Max pull up voltage 36V,450mA) 80 -))) 81 -* ((( 82 -2 x Relay Output (5A@250VAC / 30VDC) 83 -))) 84 -* ((( 85 -2 x 0~~20mA Analog Input (res:0.01mA) 86 -))) 87 -* ((( 88 -2 x 0~~30V Analog Input (res:0.01v) 89 -))) 90 -* ((( 91 -Power Input 7~~ 24V DC. 92 -))) 58 +* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor) 59 +* 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA) 60 +* 2 x Relay Output (5A@250VAC / 30VDC) 61 +* 2 x 0~~20mA Analog Input (res:0.01mA) 62 +* 2 x 0~~30V Analog Input (res:0.01v) 63 +* Power Input 7~~ 24V DC. 93 93 94 -((( 95 95 **LoRa Spec:** 96 -))) 97 97 98 -* ((( 99 -((( 100 -Frequency Range: 101 -))) 67 +* Frequency Range: 68 +** Band 1 (HF): 862 ~~ 1020 Mhz 69 +** Band 2 (LF): 410 ~~ 528 Mhz 70 +* 168 dB maximum link budget. 71 +* +20 dBm - 100 mW constant RF output vs. 72 +* +14 dBm high efficiency PA. 73 +* Programmable bit rate up to 300 kbps. 74 +* High sensitivity: down to -148 dBm. 75 +* Bullet-proof front end: IIP3 = -12.5 dBm. 76 +* Excellent blocking immunity. 77 +* Low RX current of 10.3 mA, 200 nA register retention. 78 +* Fully integrated synthesizer with a resolution of 61 Hz. 79 +* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation. 80 +* Built-in bit synchronizer for clock recovery. 81 +* Preamble detection. 82 +* 127 dB Dynamic Range RSSI. 83 +* Automatic RF Sense and CAD with ultra-fast AFC. 84 +* Packet engine up to 256 bytes with CRC. 102 102 103 -* ((( 104 -Band 1 (HF): 862 ~~ 1020 Mhz 105 -))) 106 -* ((( 107 -Band 2 (LF): 410 ~~ 528 Mhz 108 -))) 109 -))) 110 -* ((( 111 -168 dB maximum link budget. 112 -))) 113 -* ((( 114 -+20 dBm - 100 mW constant RF output vs. 115 -))) 116 -* ((( 117 -+14 dBm high efficiency PA. 118 -))) 119 -* ((( 120 -Programmable bit rate up to 300 kbps. 121 -))) 122 -* ((( 123 -High sensitivity: down to -148 dBm. 124 -))) 125 -* ((( 126 -Bullet-proof front end: IIP3 = -12.5 dBm. 127 -))) 128 -* ((( 129 -Excellent blocking immunity. 130 -))) 131 -* ((( 132 -Low RX current of 10.3 mA, 200 nA register retention. 133 -))) 134 -* ((( 135 -Fully integrated synthesizer with a resolution of 61 Hz. 136 -))) 137 -* ((( 138 -FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation. 139 -))) 140 -* ((( 141 -Built-in bit synchronizer for clock recovery. 142 -))) 143 -* ((( 144 -Preamble detection. 145 -))) 146 -* ((( 147 -127 dB Dynamic Range RSSI. 148 -))) 149 -* ((( 150 -Automatic RF Sense and CAD with ultra-fast AFC. 151 -))) 152 -* ((( 153 -Packet engine up to 256 bytes with CRC. 154 -))) 155 - 156 156 == 1.3 Features == 157 157 158 158 * LoRaWAN Class A & Class C protocol ... ... @@ -1183,9 +1183,9 @@ 1183 1183 1184 1184 So when sensor active, the current between NEC2501 pin1 and pin2 is: 1185 1185 1186 -[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]] [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**1116 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.** 1187 1187 1188 -If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]] [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.1118 +If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal. 1189 1189 1190 1190 1191 1191 **Example3**: Connect to a 220v high active sensor. ... ... @@ -1197,7 +1197,7 @@ 1197 1197 1198 1198 So when sensor active, the current between NEC2501 pin1 and pin2 is: 1199 1199 1200 - [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]] [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**1130 + [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.** 1201 1201 1202 1202 If sensor output is 220v, the (% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K. = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely. 1203 1203 ... ... @@ -1654,7 +1654,7 @@ 1654 1654 ))) 1655 1655 1656 1656 ((( 1657 -= 6. Trouble Shooting = 1587 += 6. Trouble Shooting = 1658 1658 ))) 1659 1659 1660 1660 (((