
LoRa SX1278 Long Range RF Wireless Module
The LoRa SX1278 Long Range RF Wireless Module brings kilometer-scale wireless communication to microcontroller projects without Wi-Fi routers or SIM cards. Built around Semtech's SX1278 transceiver tuned to the 433MHz band, it speaks over SPI and uses Chirp Spread Spectrum LoRa modulation to reach a receiver sensitivity of about -148dBm while transmitting at up to +20dBm. Farm sensor nodes, smart metering, remote weather stations, and long-range robot telemetry all rely on this class of module. Arduino, ESP32, and STM32 developers in Bangladesh favor it for IoT projects that must cross open fields or city blocks where GSM data costs too much. To buy the SX1278 LoRa module in Bangladesh at the current price in Bangladesh, order it from Tekko with nationwide home delivery.
Key Features:
• Semtech SX1278 transceiver operating in the 433MHz ISM band
• SPI interface with 3.3V logic — use a level shifter with 5V boards
• Link sensitivity down to approximately -148dBm for weak-signal links
• Maximum output power +20dBm (100mW) for long-distance transmission
• LoRa spreading factors SF6-SF12 let you trade data rate for range
• IPEX/U.FL antenna connector — attach a 433MHz antenna before use
• Supports point-to-point, star and mesh network topologies
Not sure it will work? Test your circuit free in Tekko Sim — on your phone, in Bangla or English.
| Category | Modules |
| Model no. | SX1278-433MHZ |
| Availability | In stock |
| In stock | 2 pcs |
| Delivery | Cash on Delivery, nationwide Bangladesh |
| Chipset | Semtech SX1278 |
| Frequency | 433MHz (410-525MHz programmable band) |
| Interface | SPI (SCK, MISO, MOSI, NSS) plus reset and DIO pins |
| Logic Level | 3.3V — not 5V tolerant |
| Supply Voltage | 1.8V to 3.7V (3.3V recommended) |
| Sensitivity | down to approx -148dBm |
| Max TX Power | +20dBm (100mW) |
| Modulation | LoRa spread spectrum, plus FSK/GFSK/MSK/OOK |
| Spreading Factor | SF6 to SF12 selectable |
| Current | approx 120mA TX at full power, approx 11mA RX, sleep under 1uA |
| Antenna | IPEX/U.FL connector — 433MHz antenna required |
| Range | up to several kilometers line-of-sight (antenna dependent) |
| Module Size | approx 16mm x 16mm |
