EByte E32-400M20S LoRa Wireless Module w/ SX1278
EByte E32-400M20S LoRa Wireless Module w/ SX1278 - Image 2
SKU: IOWC-1701
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EByte E32-400M20S LoRa Wireless Module w/ SX1278

₹559.00 (Inclusive of all taxes)
Out of Stock

The EByte E32-400M20S is a LoRa wireless transceiver module based on the SX1278/SX1276 chipset, operating in the 400MHz band. It features a UART interface for easy integration into IoT systems, offering long-range, low-power communication ideal for remote sensor networks.

Features

  • Long-range LoRa transceiver utilizing the SX1278/SX1276 chipset for robust spread spectrum communication.
  • Operates on the 400MHz frequency band (E32-400M20S/E32-400M30S), with 900MHz variants also available for different regional regulations.
  • Ultra-low power consumption design optimized for battery-powered IoT deployments and extended operational life.
  • Simple UART (TTL) serial interface enables straightforward integration with microcontrollers like Arduino, ESP32, or STM32.
  • Compact form factor with integrated RF circuitry for reliable data transmission in smart city, agricultural, and industrial monitoring applications.

Out of stock

Description

The EByte E32-M Series LoRa module provides a dedicated wireless communication solution for IoT developers requiring sub-GHz, long-range connectivity. Built around the Semtech SX1278/SX1276 transceiver, it implements LoRa modulation for excellent link budget and interference immunity, far exceeding typical FSK/OOK performance.

This module is engineered for low-duty-cycle applications, featuring configurable transmit power and multiple operating modes to minimize average current draw. Its integrated design includes a crystal oscillator, RF matching network, and UART level conversion, simplifying PCB layout and firmware development for telemetry, remote control, and sensor data backhaul systems.

Key Features

  • Implements LoRa spread spectrum modulation for superior range and robustness against interference compared to traditional FSK.
  • Supports multiple frequency variants (400MHz & 900MHz) to comply with regional ISM band regulations worldwide.
  • Integrated power amplifier and low-noise amplifier (LNA) for enhanced RF output power and receiver sensitivity.
  • Configurable via simple AT commands over UART for setting parameters like frequency, power, and data rate.
  • Designed for low-power operation with programmable sleep modes, ideal for solar or battery-powered field devices.
  • Compact, surface-mount module form factor with a standard 1.27mm pitch pin header for easy prototyping and integration.

Applications

  • Remote environmental sensor networks for agriculture (soil moisture, weather stations).
  • Smart city infrastructure for utility metering (water, gas), waste management, and streetlight control.
  • Industrial IoT (IIoT) for wireless telemetry and equipment monitoring in remote locations.
  • Asset tracking and logistics for monitoring the location and status of goods in transit.
  • Home automation systems requiring long-range, low-bandwidth communication between nodes.

Technical Specifications

ChipsetSX1278 / SX1276
Wireless ProtocolLoRa (Spread Spectrum)
Frequency Range400MHz (Model: E32-400M20S)
RF Transmit Power20 dBm (Model: E32-400M20S)
InterfaceUART (TTL)
Supply Voltage1.8V - 3.6V (Typical 3.3V)
Operating CurrentLow power consumption (Tx: ~120mA @ 20dBm, Rx: ~10mA)
Antenna ConnectorPad for solder-on wire antenna or external connector (IPEX optional)
Operating Temperature-40°C to +85°C
DimensionsApprox. 16mm x 16mm (Module size)

Frequently Asked Questions

How do I configure the EByte E32 module's frequency and power settings?

Configure the module via AT commands sent over its UART interface. Connect the module's TX/RX pins to a microcontroller's UART pins (e.g., Arduino Serial1). Use a serial terminal at the default baud rate (often 9600 or 115200) to send commands like 'AT+PARAMETER' to set frequency channel, spreading factor, bandwidth, and transmit power. Refer to the official EByte datasheet for the complete command set and parameter values specific to your model (E32-400M20S).

What is the typical wiring connection between this LoRa module and an Arduino Uno?

Connect the E32 module's VCC pin to Arduino's 3.3V output, GND to GND, and the module's AUX and M0/M1 pins to digital I/O pins for mode control. For UART communication, connect the module's TXD pin to Arduino's RX (pin 0) and RXD to Arduino's TX (pin 1), or use a SoftwareSerial instance on other pins. Ensure logic levels are compatible; the module operates at 3.3V TTL. Always use an external antenna soldered to the RF pad for optimal range.

What is the difference between the E32-400M20S and E32-900M20S models?

The primary difference is the operating frequency band. The E32-400M20S operates in the 400-470MHz ISM band, common in regions like Europe and Asia. The E32-900M20S operates in the 868-915MHz ISM band, used in North America and other regions. Choose the model that complies with your local radio regulations. The core LoRa functionality, chipset (SX1278), and interface are identical. Ensure your antenna is tuned to the correct frequency for the model you select.

What is the expected communication range for this module in an open field?

Range depends on transmit power, data rate (spreading factor), antenna gain, and environment. With 20dBm output, a simple wire antenna, and a low data rate (SF12, BW125kHz), range can exceed several kilometers in a clear line-of-sight (LOS) environment. In urban or dense foliage, range reduces to hundreds of meters. For maximum range, use a high-gain external antenna (e.g., 3dBi), elevate the node, and configure the lowest practical data rate to improve receiver sensitivity.

Package Includes

  • 1 x EByte E32-400M20S LoRa Wireless Module

Additional Information

Weight 0.01 kg
Dimensions 5 × 8 × 2 cm

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