Description:
Based on ultra low power design, LoRa Node 151 adopts the STM32L151CCU6 MCU(support DFU mode) and SX1276 LoRa chip, use 1/2 AA Lithium chlorine sulfite battery. Microprocessor: STM32L151CCU6(ARMandreg; Cortexandreg;-M3 32-bit RISC core, support DFU mode) , with LoRaandreg; node chip SX1276; Onboard user resources available: 256 Kbytes of Flash memory with ECC; 32 Kbytes of RAM.
Micro USB interface with complete voltage regulator, ESD protection, short circuit protection, and other protection measures; Onboard SH1.25-2 battery interface, integrated lithium battery management system(charge and discharge management, overcharge protection, battery power detection, USB/battery power automatic switching);Reserve SMA antenna interface for LoRa use;Integrated CP2102 USB to serial port chip, convenient for program downloading, debugging information printing;
Provide complete LoRaWan(ClassA/C)source code(support ABP and OTAA);With good RF circuit design and basic low-power design
Technical Parameters:
MCU:STM32L151CCU6
LoRa chip:SX1276
LoRa maximum output power:19dB 1dB
LoRa bands:EU_433,CN_470_510,EU_863_870,US_902_928(four bands optional)
Hardware Resource:USART x3;SPI x2;I2Cx2;I2S x2;USB2.0 x1,12-bits ADC;12-bits DAC,DMA controller,38 general GPIO
Interface:Micro USB x1;LoRa antenna(SMA) x1
Flash:256KB FLASH;32KB SRAM;8KB EEPROM;128B BACKUP REGISTER
battery type:1/2AA Lithium battery
Battery detection circuit: ?
External device power control?Vext?: ?
Deep Sleep:2.5uA
Size: 56.6 x24 x20mm
Package Including
1 * STM32L151CCU6 Development board
1 * 868-915MHz Antenna
