Item Type:STM32L151CU6
Frequency Band:433/470 ; 868/915(Optional)
Battery:1/2AA Lithium Battery

Condition Minimum Typical Maximum
Power Supply USB Power Supply(>=500mA) 4.7V 5V 6V
Battery Power Supply(>=250mA) 3.3V 3.6V 4.2V
3.3V(Pin) Power Supply(>=150mA) 2.7V 3.3V 3.5V
5V(Pin) Power Supply(>=500mA) 4.7V 5V 6V
Power Comsumption LoRa 10dB Emitting 50mA
LoRa 12dB Emitting 60mA
LoRa 15dB Emitting 110mA
LoRa 20dB Emitting 130mA
Output 3.3V Pin Output 500mA
5V Pin Output Equal to Input Current
External equipment voltage control Vext(3.3V) 350mA
MCU Chip STM32L151CCU6
LoRa Chip SX1276
LORA Frequency EU_433,CN_470_510,EU_863_870,US_902_928 are available
LoRa Maximum Output Power 19dB+-1dB
Hardware Material USART ×3；SPI×2；12C×2；12S×2；USB2.0×112-bits ADC；12-bits DAC DMA 38 Universal GPIO Interface  Controller
Storage 256KB FLASH;32KB SRAM;8KB EEPROM;128B BACKUP REGISTER
Interface Micro USB x 1;LORA Antenna Interface(SMA) x 1
Size 56.6 x 24 x 20mm / 2.23 x 0.94 x 0.79in
Battery Type Lithium Battery
Sleeping Current 2.5uA
Others Battery Detection Circuit,External Equipment Power Control(Vext)