Product Description
The LT-22222-L is configured as a LoRaWAN OTAA Class C mode device by default. It has preset OTAA keys to join ant LoRaWAN network. To connect to a LoRaWAN network, via LoRaWAN gateway, the user needs to input the OTAA keys in the LoRaWAN network server and power on the LT-22222-L. It will auto join the network via OTAA.
Features:
- STM32L072CZT6 MCU
- SX1276/78 LoRa Wireless Chip
- LoRaWAN Class A & Class C protocol
- Optional Customized LoRa Protocol
- Bands: EU433/CN470/EU868/IN865/KR920/AS923/AU915/US915
- AT Commands to change parameters
Applications:
- Smart Buildings & Home Automation
- Logistics and Supply Chain Management
- Smart Metering
- Smart Agriculture
- Smart Cities
- Smart Factory
Hardware System:
- STM32L072CZT6 MCU
- SX1276/78 Wireless Chip
- Power Consumption:
Idle: 4mA@12v
20dB Transmit: 34mA@12v
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
LoRa Spec:
- 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
