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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.

This is a microcontroller-based interactive device featuring a Wemos D1 Mini, an OLED display, external EEPROM, and an I/O expander. It includes user input buttons and status LEDs, with potential MIDI interface capabilities.

This circuit is an emergency alert system that uses a NUCLEO-F072RB microcontroller to send SMS alerts and make calls via a SIM800L GSM module, while obtaining location data from a GPS NEO 6M module. The system is powered by a Li-ion battery and includes a TP4056 module for battery charging and protection, with a rocker switch to control power to the microcontroller.

This circuit features a Lilygo 7670e microcontroller interfaced with a 16x2 I2C LCD for display, a 4X4 membrane matrix keypad for input, and an arcade button for additional control. It also includes a 4G antenna and a GPS antenna for communication and location tracking capabilities.

This circuit appears to be a complex system involving power supply management, GPS and timing synchronization, and data communication. It includes a SI-TEX G1 Satellite Compass for GPS data, an XHTF1021 Atomic Rubidium Clock for precise timing, and Ettus USRP B200 units for software-defined radio communication. Power is supplied through various SMPS units and distributed via terminal blocks and DC jacks. Data communication is facilitated by Beelink MINI S12 N95 computers, RS232 splitters, and a 1000BASE-T Media Converter for network connectivity. RF Directional Couplers are used to interface antennas with the USRP units, and the entire system is likely contained within cases for protection and organization.
The EBYTE E01-2G4M27D module is designed to deliver reliable performance in a variety of wireless communication scenarios. Below are its key technical specifications:
| Parameter | Value |
|---|---|
| Operating Frequency | 2.4GHz ISM band |
| Modulation Method | GFSK |
| Maximum Transmit Power | 27dBm |
| Sensitivity | -102dBm |
| Communication Distance | Up to 3,000 meters (line of sight) |
| Supply Voltage | 1.9V to 3.6V |
| Operating Current | 45mA (transmit), 13.5mA (receive) |
| Sleep Current | < 1µA |
| Data Rate | 250kbps, 1Mbps, 2Mbps |
| Antenna Interface | IPEX connector |
| Dimensions | 15mm x 28mm x 2.5mm |
| Operating Temperature | -40°C to +85°C |
The E01-2G4M27D module has 8 pins, as described in the table below:
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | GND | Ground connection |
| 2 | VCC | Power supply (1.9V to 3.6V) |
| 3 | CE | Chip Enable: Controls data transmission/reception |
| 4 | CSN | Chip Select: SPI interface control |
| 5 | SCK | Serial Clock: SPI clock input |
| 6 | MOSI | Master Out Slave In: SPI data input |
| 7 | MISO | Master In Slave Out: SPI data output |
| 8 | IRQ | Interrupt Request: Indicates data transmission/reception status |
Below is an example of how to connect the E01-2G4M27D to an Arduino UNO and send data wirelessly.
| E01-2G4M27D Pin | Arduino UNO Pin |
|---|---|
| GND | GND |
| VCC | 3.3V |
| CE | Pin 9 |
| CSN | Pin 10 |
| SCK | Pin 13 |
| MOSI | Pin 11 |
| MISO | Pin 12 |
| IRQ | Not connected |
#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);
}
No Communication Between Modules:
Short Communication Range:
Module Not Responding:
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.