Changes for page LT-22222-L -- LoRa I/O Controller User Manual

Last modified by Saxer Lin on 2025/04/15 17:24

From version < 132.3 >

edited by Xiaoling
on 2024/03/05 08:53

To version < 137.1 >

edited by Mengting Qiu
on 2024/09/12 08:51

Change comment: There is no comment for this version

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@@ -1,1 +1,1 @@
--XWiki.Xiaoling
++XWiki.ting

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@@ -59,153 +59,62 @@
  == 1.2 Specifications ==
--(((
--
--
  (% style="color:#037691" %)**Hardware System:**
--)))
--* (((
--STM32L072xxxx MCU
--)))
--* (((
--SX1276/78 Wireless Chip
--)))
--* (((
--(((
--Power Consumption:
--)))
++* STM32L072xxxx MCU
++* SX1276/78 Wireless Chip
++* Power Consumption:
++** Idle: 4mA@12v
++** 20dB Transmit: 34mA@12v
++* Operating Temperature: -40 ~~ 85 Degree, No Dew
--* (((
--Idle: 4mA@12v
--)))
--* (((
--20dB Transmit: 34mA@12v
--)))
--)))
--
--(((
--
--
  (% style="color:#037691" %)**Interface for Model: LT22222-L:**
--)))
--* (((
--2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
--)))
--* (((
--2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
--)))
--* (((
--2 x Relay Output (5A@250VAC / 30VDC)
--)))
--* (((
--2 x 0~~20mA Analog Input (res:0.01mA)
--)))
--* (((
--2 x 0~~30V Analog Input (res:0.01v)
--)))
--* (((
--Power Input 7~~ 24V DC.
--)))
++* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
++* 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
++* 2 x Relay Output (5A@250VAC / 30VDC)
++* 2 x 0~~20mA Analog Input (res:0.01mA)
++* 2 x 0~~30V Analog Input (res:0.01v)
++* Power Input 7~~ 24V DC.
--(((
--
--
  (% style="color:#037691" %)**LoRa Spec:**
--)))
--* (((
--(((
--Frequency Range:
--)))
++* Frequency Range:
++** Band 1 (HF): 862 ~~ 1020 Mhz
++** Band 2 (LF): 410 ~~ 528 Mhz
++* 168 dB maximum link budget.
++* +20 dBm - 100 mW constant RF output vs.
++* +14 dBm high efficiency PA.
++* Programmable bit rate up to 300 kbps.
++* High sensitivity: down to -148 dBm.
++* Bullet-proof front end: IIP3 = -12.5 dBm.
++* Excellent blocking immunity.
++* Low RX current of 10.3 mA, 200 nA register retention.
++* Fully integrated synthesizer with a resolution of 61 Hz.
++* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
++* Built-in bit synchronizer for clock recovery.
++* Preamble detection.
++* 127 dB Dynamic Range RSSI.
++* Automatic RF Sense and CAD with ultra-fast AFC.
++* Packet engine up to 256 bytes with CRC.
--* (((
--Band 1 (HF): 862 ~~ 1020 Mhz
--)))
--* (((
--Band 2 (LF): 410 ~~ 528 Mhz
--)))
--)))
--* (((
--168 dB maximum link budget.
--)))
--* (((
--+20 dBm - 100 mW constant RF output vs.
--)))
--* (((
--+14 dBm high efficiency PA.
--)))
--* (((
--Programmable bit rate up to 300 kbps.
--)))
--* (((
--High sensitivity: down to -148 dBm.
--)))
--* (((
--Bullet-proof front end: IIP3 = -12.5 dBm.
--)))
--* (((
--Excellent blocking immunity.
--)))
--* (((
--Low RX current of 10.3 mA, 200 nA register retention.
--)))
--* (((
--Fully integrated synthesizer with a resolution of 61 Hz.
--)))
--* (((
--FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
--)))
--* (((
--Built-in bit synchronizer for clock recovery.
--)))
--* (((
--Preamble detection.
--)))
--* (((
--127 dB Dynamic Range RSSI.
--)))
--* (((
--Automatic RF Sense and CAD with ultra-fast AFC.
--)))
--* (((
--Packet engine up to 256 bytes with CRC.
--
--
--
--)))
--
  == 1.3 Features ==
--
  * LoRaWAN Class A & Class C protocol
--
  * Optional Customized LoRa Protocol
--
  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
--
  * AT Commands to change parameters
--
  * Remote configure parameters via LoRa Downlink
--
  * Firmware upgradable via program port
--
  * Counting
  == 1.4 Applications ==
--
  * Smart Buildings & Home Automation
--
  * Logistics and Supply Chain Management
--
  * Smart Metering
--
  * Smart Agriculture
--
  * Smart Cities
--
  * Smart Factory
  == 1.5 Hardware Variants ==
@@ -227,17 +227,10 @@
  = 2. Power ON Device =
--
--(((
  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.
--)))
--(((
  PWR will on when device is properly powered.
--
--)))
--
  [[image:1653297104069-180.png]]
@@ -1667,9 +1667,6 @@
  (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
  |(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:460px" %)**Feature**
  |**PWR**|Always on if there is power
--|**SYS**|(((
--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.
--)))
  |**TX**|(((
  (((
  Device boot: TX blinks 5 times.
@@ -1684,20 +1684,16 @@
  )))
  )))
  |**RX**|RX blinks once when receive a packet.
--|**DO1**|
--|**DO2**|
--|**DO3**|
--|**DI2**|(((
--For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
++|**DO1**|For LT-22222-L: ON when DO1 is low, LOW when DO1 is high
++|**DO2**|For LT-22222-L: ON when DO2 is low, LOW when DO2 is high
++|**DI1**|(((
++For LT-22222-L: ON when DI1 is high, LOW when DI1 is low
  )))
  |**DI2**|(((
--For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
++For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
  )))
--|**DI2**|(((
--For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
--)))
--|**RO1**|
--|**RO2**|
++|**RO1**|For LT-22222-L: ON when RO1 is closed, LOW when RO1 is open
++|**RO2**|For LT-22222-L: ON when RO2 is closed, LOW when RO2 is open
  = 4. Use AT Command =

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