{"product_id":"ra-01-ra-02-lora-sx1278-433mhz-long-range-spi-arduino-iot","title":"RA-01 \/ RA-02 LoRa SX1278 433MHz Long-Range Wireless Module — SPI, Arduino, IoT","description":"\u003ch2\u003eRA-01 \/ RA-02 LoRa SX1278 433MHz Long-Range Wireless Module — SPI\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eRA-01\u003c\/strong\u003e (SMD pad) and \u003cstrong\u003eRA-02\u003c\/strong\u003e (castellated edge) are compact LoRa wireless modules based on the \u003cstrong\u003eSemtech SX1278\u003c\/strong\u003e chip, operating at \u003cstrong\u003e433MHz\u003c\/strong\u003e. With spread-spectrum modulation and up to \u003cstrong\u003e10km line-of-sight range\u003c\/strong\u003e, they are ideal for low-power, long-range IoT sensor networks, remote telemetry, and Arduino-based wireless projects.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Variants\u003c\/td\u003e\n\u003ctd\u003eRA-01 (SMD) \/ RA-02 (castellated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRF IC\u003c\/td\u003e\n\u003ctd\u003eSemtech SX1278\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e433MHz (ISM band)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModulation\u003c\/td\u003e\n\u003ctd\u003eLoRa (CSS spread spectrum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax TX Power\u003c\/td\u003e\n\u003ctd\u003e+20dBm (100mW)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReceiver Sensitivity\u003c\/td\u003e\n\u003ctd\u003e−148dBm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Range (LoS)\u003c\/td\u003e\n\u003ctd\u003e~10km (open field)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eSPI (MOSI, MISO, SCK, NSS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent (TX)\u003c\/td\u003e\n\u003ctd\u003e~120mA @ +20dBm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent (Sleep)\u003c\/td\u003e\n\u003ctd\u003e~0.2μA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpreading Factor\u003c\/td\u003e\n\u003ctd\u003eSF6 – SF12 (configurable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAntenna Connector\u003c\/td\u003e\n\u003ctd\u003eIPEX \/ U.FL (external antenna required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eRA-01 vs RA-02\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eRA-01\u003c\/th\u003e\n\u003cth\u003eRA-02\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePad Type\u003c\/td\u003e\n\u003ctd\u003eSMD (bottom pads)\u003c\/td\u003e\n\u003ctd\u003eCastellated edges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePCB Integration\u003c\/td\u003e\n\u003ctd\u003eReflow soldering\u003c\/td\u003e\n\u003ctd\u003eHand-solderable to PCB edge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrototyping\u003c\/td\u003e\n\u003ctd\u003eRequires adapter board\u003c\/td\u003e\n\u003ctd\u003eEasier with breakout board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose RA-01\/RA-02?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10km Range\u003c\/strong\u003e — LoRa spread spectrum achieves km-scale range at \u0026lt;1kbps data rate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e−148dBm Sensitivity\u003c\/strong\u003e — Exceptional receiver sensitivity for weak signal environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Low Sleep Current\u003c\/strong\u003e — 0.2μA sleep mode for years of battery life in IoT nodes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSPI Interface\u003c\/strong\u003e — Compatible with Arduino, ESP32, STM32, Raspberry Pi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e433MHz ISM Band\u003c\/strong\u003e — License-free operation in most countries\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eLong-range IoT sensor networks (temperature, humidity, GPS tracking)\u003c\/li\u003e\n\u003cli\u003eSmart agriculture remote monitoring\u003c\/li\u003e\n\u003cli\u003eLoRaWAN gateway node (with LoRaWAN stack)\u003c\/li\u003e\n\u003cli\u003eWireless meter reading (water, gas, electricity)\u003c\/li\u003e\n\u003cli\u003eSearch and rescue \/ asset tracking\u003c\/li\u003e\n\u003cli\u003eArduino-to-Arduino long-range communication\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eArduino Library\u003c\/h3\u003e\u003cp\u003eUse \u003cstrong\u003eRadioHead\u003c\/strong\u003e library (RH_RF95 driver) or \u003cstrong\u003eLoRa\u003c\/strong\u003e library by Sandeep Mistry. Initialize with: \u003ccode\u003eLoRa.begin(433E6);\u003c\/code\u003e for 433MHz operation.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Does RA-01\/RA-02 support LoRaWAN?\u003c\/strong\u003e\u003cbr\u003eA: The SX1278 hardware supports LoRaWAN, but you need a LoRaWAN stack (e.g., LMIC library) and a LoRaWAN network server (TTN, Chirpstack) for full LoRaWAN operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What antenna should I use with RA-01\/RA-02?\u003c\/strong\u003e\u003cbr\u003eA: Use a 433MHz quarter-wave whip antenna (~17cm wire) or a 433MHz spring antenna via IPEX connector for best range.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1× RA-01 or RA-02 LoRa SX1278 433MHz Wireless Module\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"With Plate 1PCS","offer_id":46991486320875,"sku":"14:4044226#With Plate 1PCS","price":15.36,"currency_code":"USD","in_stock":true},{"title":"With Plate 5PCS","offer_id":46991486353643,"sku":"14:201659813#With Plate 5PCS","price":73.24,"currency_code":"USD","in_stock":true},{"title":"RA-01 5PCS","offer_id":46991486386411,"sku":"14:350852#RA-01 5PCS","price":50.92,"currency_code":"USD","in_stock":true},{"title":"RA-01 10PCS","offer_id":46991486419179,"sku":"14:351074#RA-01 10PCS","price":101.76,"currency_code":"USD","in_stock":true},{"title":"RA-01 1PCS","offer_id":46991486451947,"sku":"14:1202#RA-01 1PCS","price":10.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/ra01-ra02-lora-sx1278-module.webp?v=1761539624","url":"https:\/\/keszoox.com\/products\/ra-01-ra-02-lora-sx1278-433mhz-long-range-spi-arduino-iot","provider":"Keszoox","version":"1.0","type":"link"}