{"product_id":"sx1278-lora-module-ra-02-433mhz-wireless-spread-spectrum-transmission","title":"SX1278 LoRa Module Ra- 02 433MHZ Wireless Spread Spectrum Transmission","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/robocraze.com\/cdn\/shop\/products\/SX1278_LoRa_Module.png?v=1743773678\" alt=\"SX1278 LoRa Module Ra-02 433MHz - SX1278 Ra-02 LoRa Communication Module for IoT \u0026amp; Arduino Projects. -Robocraze\" width=\"217\" height=\"217\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe long-range wireless transmission LoRa module Ra-02 is based on the SEMTECH SX1278 wireless transceiver. This \u003ca href=\"https:\/\/robocraze.com\/collections\/lora\"\u003eLoRa module\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003euses advanced LoRa spread spectrum technology to provide a communication range of up to 10,000 meters. It has excellent anti-jamming skills and an air wake-up consumption feature.\u003c\/p\u003e\n\u003cp\u003eThe SX1278 LoRa RF module is designed mainly for long-range spread spectrum communication and has low current consumption. It has a high sensitivity of -148 dBm and a power output of +20 dBm.\u003c\/p\u003e\n\u003cp\u003eCompared to traditional modulation technology, LoRa communication modulation technology provides significant advantages in terms of anti-blocking and selection, interference, and power consumption.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLoRa ™ Spread Spectrum modulation technology\u003c\/li\u003e\n\u003cli\u003eConstant RF power output at + 20dBm-100mW voltage change\u003c\/li\u003e\n\u003cli\u003eHalf-duplex SPI communication\u003c\/li\u003e\n\u003cli\u003eSupports FSK, GFSK, MSK, GMSK, LoRa ™ and OOK modulation modes\u003c\/li\u003e\n\u003cli\u003eAutomatic RF signal detection, CAD mode and very high speed AFC\u003c\/li\u003e\n\u003cli\u003ePacket engine with CRC up to 256 bytes\u003c\/li\u003e\n\u003cli\u003eSmall footprint dual-row stamp-hole patch package\u003c\/li\u003e\n\u003cli\u003eShielded housing\u003c\/li\u003e\n\u003cli\u003eSpring Antenna\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLong-range wireless communication module based on LoRa platform\u003c\/li\u003e\n\u003cli\u003eUses SPI communication protocol and requires an antenna for proper RF communication\u003c\/li\u003e\n\u003cli\u003eOperates on 3.3V and has 16 pins (8 on each side)\u003c\/li\u003e\n\u003cli\u003eCan be interfaced with microcontrollers like Arduino Uno and Nano\u003c\/li\u003e\n\u003cli\u003eWidely used in Arduino \u0026amp; IoT projects, smart agriculture, smart cities, and industrial automation due to its long-range communication and low power consumption\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSX1278 LoRa Module (RA-02 433MHz) – Arduino Connection \u0026amp; Wiring Guide\u003c\/h2\u003e\n\u003ch3\u003e1. Important Notes Before Wiring\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe SX1278 module operates at\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3.3V logic and supply\u003c\/strong\u003e; it is not 5V tolerant. Supplying 5V may damage the module.\u003c\/li\u003e\n\u003cli\u003eConnect a suitable antenna to the module’s RF output to prevent damage and ensure proper communication.\u003c\/li\u003e\n\u003cli\u003eEnsure a common ground between Arduino and LoRa module to avoid unreliable communication.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e2. Wiring Table (Arduino UNO Example)\u003c\/h3\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"8\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eLoRa Module Pin\u003c\/th\u003e\n\u003cth\u003eArduino UNO Pin\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVCC (3.3V)\u003c\/td\u003e\n\u003ctd\u003e3.3V\u003c\/td\u003e\n\u003ctd\u003eProvide stable 3.3V supply. Some boards may require external regulator.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003ctd\u003eCommon reference for both devices.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSS \/ CS\u003c\/td\u003e\n\u003ctd\u003eD10\u003c\/td\u003e\n\u003ctd\u003eChip select for SPI communication.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDIO0\u003c\/td\u003e\n\u003ctd\u003eD2\u003c\/td\u003e\n\u003ctd\u003eInterrupt pin for packet-ready signaling.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSCK\u003c\/td\u003e\n\u003ctd\u003eD13\u003c\/td\u003e\n\u003ctd\u003eSPI clock.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMISO\u003c\/td\u003e\n\u003ctd\u003eD12\u003c\/td\u003e\n\u003ctd\u003eSPI Master-In-Slave-Out.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOSI\u003c\/td\u003e\n\u003ctd\u003eD11\u003c\/td\u003e\n\u003ctd\u003eSPI Master-Out-Slave-In.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRST\u003c\/td\u003e\n\u003ctd\u003eD9\u003c\/td\u003e\n\u003ctd\u003eReset pin for LoRa module.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e3. Connection Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse short wires to reduce noise on SPI lines.\u003c\/li\u003e\n\u003cli\u003eKeep the LoRa module away from large metal objects or other RF modules to reduce interference.\u003c\/li\u003e\n\u003cli\u003eIf using a 5V Arduino, consider a logic-level shifter on SPI lines to protect the module.\u003c\/li\u003e\n\u003cli\u003eEnsure VCC is supplied by a 3.3V source capable of sufficient current.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e4. Arduino IDE Setup \u0026amp; Example Code\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eLoRa library by Sandeep Mistry\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003evia Arduino Library Manager.\u003c\/li\u003e\n\u003cli\u003eUse the following basic transmitter code:\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cpre\u003e#include \u0026lt;SPI.h\u0026gt;\n#include \u0026lt;LoRa.h\u0026gt;\n\nint counter = 0;\n\nvoid setup() {\n  Serial.begin(9600);\n  while (!Serial);\n\n  Serial.println(\"LoRa Sender\");\n  if (!LoRa.begin(433E6)) {\n    Serial.println(\"Starting LoRa failed!\");\n    while (1);\n  }\n  LoRa.setTxPower(20);\n}\n\nvoid loop() {\n  Serial.print(\"Sending packet: \");\n  Serial.println(counter);\n\n  LoRa.beginPacket();\n  LoRa.print(\"hello \");\n  LoRa.print(counter);\n  LoRa.endPacket();\n\n  counter++;\n  delay(5000);\n}\n\u003c\/pre\u003e\n\u003cul\u003e\n\u003cli\u003eFor the receiver, use\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003eLoRa.begin(433E6)\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003eand read incoming packets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e5. Final Checklist\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAntenna connected\u003c\/li\u003e\n\u003cli\u003eModule VCC = 3.3V and GND connected\u003c\/li\u003e\n\u003cli\u003eSPI wiring correct (NSS, SCK, MISO, MOSI)\u003c\/li\u003e\n\u003cli\u003eDIO0 and RST connected\u003c\/li\u003e\n\u003cli\u003eLogic levels safe or level shifted\u003c\/li\u003e\n\u003cli\u003eLibrary installed and example configured for 433MHz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eLoRa Module Comparison: SX1278 vs SX1262 vs RFM95\u003c\/h2\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"8\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSX1278 Module\u003c\/th\u003e\n\u003cth\u003eSX1262 Module\u003c\/th\u003e\n\u003cth\u003eRFM95 Module\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e~137‑525 MHz (commonly 433\/470 MHz)\u003c\/td\u003e\n\u003ctd\u003e~150‑960 MHz (broad frequency support)\u003c\/td\u003e\n\u003ctd\u003eTypically 868\/915 MHz (depends on variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Transmit Power\u003c\/td\u003e\n\u003ctd\u003eUp to +20 dBm\u003c\/td\u003e\n\u003ctd\u003eUp to +22 dBm\u003c\/td\u003e\n\u003ctd\u003eUp to +20 dBm (varies with module)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReceiver Sensitivity\u003c\/td\u003e\n\u003ctd\u003eDown to ~‑139 dBm\u003c\/td\u003e\n\u003ctd\u003eDown to ~‑148 dBm\u003c\/td\u003e\n\u003ctd\u003e~‑148 dBm (depending on version)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption \/ Efficiency\u003c\/td\u003e\n\u003ctd\u003eHigher RX current, less efficient\u003c\/td\u003e\n\u003ctd\u003eMuch improved efficiency, lower RX current\u003c\/td\u003e\n\u003ctd\u003eGood efficiency, similar to SX127x series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage \/ Size\u003c\/td\u003e\n\u003ctd\u003eLarger 6×6 mm QFN, older design\u003c\/td\u003e\n\u003ctd\u003eSmaller 4×4 mm QFN, newer generation\u003c\/td\u003e\n\u003ctd\u003eModule size similar to SX127x based modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdeal Use Case\u003c\/td\u003e\n\u003ctd\u003eCost-sensitive, 433 MHz or legacy 868\/915 projects\u003c\/td\u003e\n\u003ctd\u003eBattery-powered, long-term deployments, broad frequency support\u003c\/td\u003e\n\u003ctd\u003eStrong 868\/915 MHz coverage, general purpose LoRa usage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrawbacks\u003c\/td\u003e\n\u003ctd\u003eOlder generation, less efficient, limited bandwidth\u003c\/td\u003e\n\u003ctd\u003eHigher cost, more complex features may be overkill for simple use\u003c\/td\u003e\n\u003ctd\u003eMay not offer lowest current draw compared to newest chips\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Future Electro","offers":[{"title":"Default Title","offer_id":48294395969779,"sku":null,"price":599.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0795\/9982\/9235\/files\/1278.png?v=1766746429","url":"https:\/\/futureelectro.in\/products\/sx1278-lora-module-ra-02-433mhz-wireless-spread-spectrum-transmission","provider":"Future Electro","version":"1.0","type":"link"}