How to Use EBYTE E01-2G4M27D: Examples, Pinouts, and Specs

The EBYTE E01-2G4M27D is a low-power, long-range wireless transceiver module operating in the 2.4GHz frequency band. Designed for IoT applications, this module features a compact design, high sensitivity, and reliable communication capabilities. It is based on the Nordic nRF24L01+ chip, making it ideal for applications requiring robust wireless communication with minimal power consumption.

• Smart home devices and automation
• Industrial wireless control systems
• Wireless sensor networks
• Remote monitoring and telemetry
• Internet of Things (IoT) applications
• Wireless data transmission in robotics

The EBYTE E01-2G4M27D module is designed to deliver reliable performance in a variety of wireless communication scenarios. Below are its key technical specifications:

The E01-2G4M27D module has 8 pins, as described in the table below:

1. Power Supply: Connect the VCC pin to a regulated power source (1.9V to 3.6V) and the GND pin to ground.
2. SPI Interface: Connect the SPI pins (CSN, SCK, MOSI, MISO) to the corresponding SPI pins on your microcontroller.
3. Control Pins:
   • Use the CE pin to toggle between transmit and receive modes.
   • Monitor the IRQ pin for interrupt signals indicating data transmission or reception events.
4. Antenna: Attach an external antenna to the IPEX connector for optimal signal strength and range.

• Power Supply: Ensure a stable and noise-free power supply to avoid communication errors.
• Antenna Placement: Position the antenna away from metal objects and other sources of interference for maximum range.
• SPI Configuration: Configure the SPI interface on your microcontroller to match the module's settings (e.g., clock polarity and phase).
• Operating Environment: Avoid using the module in environments with excessive RF interference or extreme temperatures.

Below is an example of how to connect the E01-2G4M27D to an Arduino UNO and send data wirelessly.

#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>

// Define CE and CSN pins
#define CE_PIN 9
#define CSN_PIN 10

// Create an RF24 object
RF24 radio(CE_PIN, CSN_PIN);

// Define the address for communication
const byte address[6] = "00001";

void setup() {
  // Initialize serial communication
  Serial.begin(9600);

  // Initialize the RF24 module
  radio.begin();
  
  // Set the communication address
  radio.openWritingPipe(address);
  
  // Set RF24 module to transmit mode
  radio.setPALevel(RF24_PA_HIGH);
  
  // Start the radio
  radio.stopListening();
}

void loop() {
  // Define the message to send
  const char text[] = "Hello, EBYTE!";
  
  // Send the message
  bool success = radio.write(&text, sizeof(text));
  
  // Print the status of the transmission
  if (success) {
    Serial.println("Message sent successfully!");
  } else {
    Serial.println("Message failed to send.");
  }
  
  // Wait for 1 second before sending the next message
  delay(1000);
}

1. No Communication Between Modules:

   • Ensure both modules are configured with the same address and data rate.
   • Verify the SPI connections and ensure proper wiring.
   • Check the power supply voltage and ensure it is within the specified range.

2. Short Communication Range:

   • Ensure the antenna is properly connected and positioned.
   • Avoid obstacles and interference sources in the communication path.

3. Module Not Responding:

   • Verify that the CE and CSN pins are correctly connected and controlled by the microcontroller.
   • Check the IRQ pin for interrupt signals to diagnose the issue.

Q: Can the E01-2G4M27D module operate on 5V?
A: No, the module operates on a supply voltage of 1.9V to 3.6V. Use a voltage regulator if your system operates at 5V.

Q: What is the maximum communication distance?
A: The module can achieve up to 3,000 meters of communication range in line-of-sight conditions with a proper antenna.

Q: Is the module compatible with other nRF24L01+ devices?
A: Yes, the E01-2G4M27D is based on the nRF24L01+ chip and is fully compatible with other devices using the same protocol.