LoRa Node 151






  • Include antenna;
  • Include pin map sticker;
  • Not include battery;
  • 1/2 AA Lithium chlorine sulfite battery (Sale Mainland China only, can’t air transport)
  • Antenna

Availability: 2955 In Stock



In order to meet the user’s requirements for Ultra-Low-Power and standard LoRaWAN protocol, we designed this product. On the basis of STM32L151CBU6MCU and SX1278 LoRa chip(433、470MHz), the low power current can reach to 6uA.


  • CE Certificate;
  • Microprocessor: STM32L151CCU6(ARM® Cortex®-M3 32-bit RISC core,support DFU mode) , with LoRa® node chip SX1276/SX1278;
  • Onboard user resources available: 256 Kbytes of Flash memory with ECC; 32 Kbytes of RAM; 8 Kbytes of true EEPROM with ECC; 128-byte backup register.
  • Micro USB interface with a complete voltage regulator, ESD protection, short circuit protection, and other protection measures;
  • 1/2 AA battery shell, use 1/2 AA Lithium chlorine sulfite battery (this battery can’t charge, but onboard USB / battery power automatic switching allows connect USB when the battery is assembled);
  • Reserve SMA antenna interface for LoRa use
  • Download the firmware via DFU or ST-LINK;
  • Provide complete LoRaWAN(ClassA/C) source code(support ABP and OTAA);
  • With good RF circuit design and basic low-power design (sleep current: 1.8uA), it is convenient for IoT application vendors to quickly verify solutions and deploy applications;

Technical parameters:

Resource Parameter
Master Chip STM32L151CCU6(Ultra-low-power 32-bit MCU ARM®-based Cortex®-M3)
Wireless Communication LoRa
Node-to-node communication or LoRaWAN
LoRa Chip  SX1276/SX1278
LoRaWAN Area hardware version Support frequency
LF EU433
HF IN865
LoRa Maximum Output Power 19dB ± 1dB
Hardware Resource UART x 3; SPI x 2; I2C x 2; I2S x 2; 12-bits ADC input x 14; 12-bits DAC output x 2; GPIO x 29
FLASH 256KB internal FLASH
RAM 32KB internal SRAM
Interface Micro USB x 1; LoRa Antenna interface(SMA) x 1; 16 x 2.54 pin x 2 + 2 x 2.54 pin x 2
Maximum Size (Including protruding parts
such as switch and battery compartment)
56.6 x 24 x 20 mm
USB to Serial Chip x
Battery 1/2AA Lithium
Solar Energy x
Battery Detection Circuit
External Device Power Control(Vext)
Low Power Deep Sleep 2.5μA
Display Size No display
Working Temperature -40~80℃
Electrical Features Condition  Minimum Typica  Maximum
Power Supply USB powered(≥500mA) 4.7V 5V 6V
Lithium powered(≥250mA) 3.3V 3.6V 4.2V
3.3V(pin)powered(≥150mA) 2.7V 3.3V 3.5V
5V(pin)powered(≥500mA) 4.7V 5V 6V
Power Consumption(mA) LoRa 10dB output 50mA
LoRa 12dB output 60mA
LoRa 15dB output 110mA
LoRa 20dB output 130mA
Output  3.3V pin output 500mA
5V pin output (USB powered only) Equal to the input current
External device power control (Vext 3.3V) 350mA


Test Info

                                                                                                        LoRa 868-915MHz  RF power output


                                                                                                              LoRa 868MHz  RF power output


                                                                                                               LoRa 470MHz  RF power output



                                                                                                              LoRa 433MHz  RF power output


LoRa Band

433MHz, 470-510MHz, 863-987MHz, 902-928MHz

working temperature

-40°C to 80°C


56.6 x 24 x 20 mm


Micro USB x 1|SPI|LoRaAntenna interface


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