SX1278 LoRa Module Ra- 02 433MHZ Wireless Spread Spectrum Transmission


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Approx Restocking Date: NA
SKU: 1150780
  1. Communication distance: 15KM
  2. Sensitivity: down to -148dBm
  3. Programmable bit rates: up to 300kbps
  4. RSSI dynamic range: 127dB


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Brand: Generic
Category: LORA Module
Ra-02 is a wireless transmission module based on SEMTECH’s SX1278 wireless transceiver. It adopts advanced LoRa spread spectrum technology, with a communication distance of 10,000 meters. It has a strong ability of anti-jamming and has the function of air wake-up Consumption. The SX1278 RF module is mainly used for long-range spread spectrum communication, and it can resist Minimizing current consumption. The SX1278 has a high sensitivity of -148 dBm with a power output of +20 dBm, and a long transmission distance and high reliability. At the same time, compared with the traditional modulation technology, LoRa ™ modulation technology has obvious advantages in anti-blocking and selection, which solves the problem that the traditional design scheme can not consider the distance, interference and power consumption at the same time.
It can be covering thousands of people in the district environment, particularly suitable for meter reading, smart home, burglar alarm equipment.

Connection Diagram:

LORA Transmitter :

Generic Arduino Lora Transmitter Circuit

LORA Receiver:

Generic Arduino Lora Receiver Circuit

    Note: You need to install the library in Arduino IDE which is shown in image given below:

Generic Arduino Lora Library Manager Image


  1. LoRa ™ Spread Spectrum modulation technology
  2. Constant RF power output at + 20dBm-100mW voltage change
  3. Half-duplex SPI communication
  4. Supports FSK, GFSK, MSK, GMSK, LoRa ™ and OOK modulation modes
  5. Automatic RF signal detection, CAD mode and very high speed AFC
  6. Packet engine with CRC up to 256 bytes
  7. Small footprint dual-row stamp-hole patch package
  8. Shielded housing
  9. Spring Antenna

Package Includes:

1 x LoRa Wireless Spread Spectrum Transmission

SKU: 1150780 Category:
Communication distance



down to -148dBm

Programmable bit rates

up to 300kbps

RSSI dynamic range


Wireless frequency


Working voltage


Shipping Weight 0.008 kg
Shipping Dimensions 8 × 7 × 1 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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LORA TXR & RXR Program

Questions and answers of the customers

  1. 0 votes
    Q What are the Capacitors values that are used on this board? answer now
    Asked by pavankumar14000 on November 30, 2023 7:27 pm

    Capacitors with values like 10uF and 100nF are ... Read more

  2. 0 votes
    Q This pack includes only transmitter or both transmitter and receiver?? answer now
    Asked by akashlohar8416 on November 7, 2023 11:16 am

    It's a Tran-receiver module that can both trans... Read more

  3. 0 votes

    Connect it as per the connection diagram given ... Read more

  4. 0 votes
    Q Whether atenna attachment is required or not answer now
    Asked by udaykumarkamasani on February 20, 2023 4:38 pm

    Yes, you will also require an antenna for it. ... Read more

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Country Of Origin: China