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This module is a high-performance long-range RF communication module for IoT and wireless sensor networks, based on the Semtech SX1278 LoRa chip. It delivers reliable, low-power data transmission over long distances with excellent interference resistance, which is why LoRa modules like this are popular for smart agriculture, telemetry and remote monitoring projects.
It communicates over SPI and operates at 433 MHz, and the maker states it can reach up to 15 km in open areas under ideal conditions, which is a best-case figure rather than a typical result in built-up areas.
Supply voltage is 1.8 to 3.7 V DC, receiver sensitivity reaches up to -148 dBm and the programmable bit rate goes up to 300 kbps. The operating temperature range is -40 to +85 C, and the module supports Arduino, ESP32, ESP8266, Raspberry Pi and STM32.
Because the SX1278 runs at 1.8 to 3.7 V logic, use a level shifter if your host board's SPI pins run at 5 V, and connect a suitable 433 MHz antenna before powering it up, since transmitting without an antenna can damage the RF output stage.
Makers and small businesses building long-range sensor networks, agricultural monitoring and remote telemetry links at 433 MHz.
Always connect a 433 MHz antenna before applying power, since transmitting into an open port can damage the module's output stage. Because the SX1278 pairs of pins run at low voltage, a level shifter between the module and a 5V host protects it from being driven too hard on the SPI lines.
The Semtech SX1278.
Up to 15 km in open areas under ideal conditions, as stated by the maker.
1.8 to 3.7 V DC.
Up to -148 dBm.
Arduino, ESP32, ESP8266, Raspberry Pi and STM32.
| Brand | Generic |
|---|---|
| Chipset | SX1278 |
| Frequency | 433MHz |
| Selling unit | PCS |
